mirror of https://gitee.com/openkylin/linux.git
5060 lines
133 KiB
C
5060 lines
133 KiB
C
/*
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* drivers/net/ethernet/rocker/rocker.c - Rocker switch device driver
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* Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
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* Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/interrupt.h>
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#include <linux/sched.h>
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#include <linux/wait.h>
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#include <linux/spinlock.h>
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#include <linux/hashtable.h>
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#include <linux/crc32.h>
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#include <linux/sort.h>
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#include <linux/random.h>
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#include <linux/netdevice.h>
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#include <linux/inetdevice.h>
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#include <linux/skbuff.h>
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#include <linux/socket.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/if_ether.h>
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#include <linux/if_vlan.h>
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#include <linux/if_bridge.h>
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#include <linux/bitops.h>
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#include <linux/ctype.h>
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#include <net/switchdev.h>
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#include <net/rtnetlink.h>
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#include <net/ip_fib.h>
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#include <net/netevent.h>
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#include <net/arp.h>
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#include <asm-generic/io-64-nonatomic-lo-hi.h>
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#include <generated/utsrelease.h>
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#include "rocker.h"
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static const char rocker_driver_name[] = "rocker";
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static const struct pci_device_id rocker_pci_id_table[] = {
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{PCI_VDEVICE(REDHAT, PCI_DEVICE_ID_REDHAT_ROCKER), 0},
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{0, }
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};
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struct rocker_flow_tbl_key {
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u32 priority;
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enum rocker_of_dpa_table_id tbl_id;
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union {
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struct {
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u32 in_pport;
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u32 in_pport_mask;
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enum rocker_of_dpa_table_id goto_tbl;
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} ig_port;
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struct {
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u32 in_pport;
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__be16 vlan_id;
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__be16 vlan_id_mask;
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enum rocker_of_dpa_table_id goto_tbl;
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bool untagged;
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__be16 new_vlan_id;
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} vlan;
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struct {
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u32 in_pport;
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u32 in_pport_mask;
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__be16 eth_type;
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u8 eth_dst[ETH_ALEN];
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u8 eth_dst_mask[ETH_ALEN];
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__be16 vlan_id;
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__be16 vlan_id_mask;
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enum rocker_of_dpa_table_id goto_tbl;
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bool copy_to_cpu;
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} term_mac;
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struct {
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__be16 eth_type;
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__be32 dst4;
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__be32 dst4_mask;
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enum rocker_of_dpa_table_id goto_tbl;
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u32 group_id;
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} ucast_routing;
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struct {
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u8 eth_dst[ETH_ALEN];
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u8 eth_dst_mask[ETH_ALEN];
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int has_eth_dst;
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int has_eth_dst_mask;
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__be16 vlan_id;
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u32 tunnel_id;
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enum rocker_of_dpa_table_id goto_tbl;
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u32 group_id;
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bool copy_to_cpu;
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} bridge;
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struct {
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u32 in_pport;
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u32 in_pport_mask;
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u8 eth_src[ETH_ALEN];
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u8 eth_src_mask[ETH_ALEN];
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u8 eth_dst[ETH_ALEN];
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u8 eth_dst_mask[ETH_ALEN];
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__be16 eth_type;
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__be16 vlan_id;
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__be16 vlan_id_mask;
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u8 ip_proto;
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u8 ip_proto_mask;
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u8 ip_tos;
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u8 ip_tos_mask;
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u32 group_id;
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} acl;
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};
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};
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struct rocker_flow_tbl_entry {
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struct hlist_node entry;
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u32 cmd;
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u64 cookie;
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struct rocker_flow_tbl_key key;
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size_t key_len;
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u32 key_crc32; /* key */
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};
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struct rocker_group_tbl_entry {
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struct hlist_node entry;
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u32 cmd;
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u32 group_id; /* key */
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u16 group_count;
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u32 *group_ids;
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union {
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struct {
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u8 pop_vlan;
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} l2_interface;
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struct {
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u8 eth_src[ETH_ALEN];
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u8 eth_dst[ETH_ALEN];
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__be16 vlan_id;
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u32 group_id;
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} l2_rewrite;
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struct {
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u8 eth_src[ETH_ALEN];
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u8 eth_dst[ETH_ALEN];
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__be16 vlan_id;
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bool ttl_check;
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u32 group_id;
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} l3_unicast;
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};
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};
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struct rocker_fdb_tbl_entry {
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struct hlist_node entry;
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u32 key_crc32; /* key */
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bool learned;
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struct rocker_fdb_tbl_key {
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u32 pport;
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u8 addr[ETH_ALEN];
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__be16 vlan_id;
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} key;
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};
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struct rocker_internal_vlan_tbl_entry {
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struct hlist_node entry;
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int ifindex; /* key */
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u32 ref_count;
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__be16 vlan_id;
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};
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struct rocker_neigh_tbl_entry {
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struct hlist_node entry;
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__be32 ip_addr; /* key */
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struct net_device *dev;
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u32 ref_count;
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u32 index;
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u8 eth_dst[ETH_ALEN];
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bool ttl_check;
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};
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struct rocker_desc_info {
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char *data; /* mapped */
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size_t data_size;
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size_t tlv_size;
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struct rocker_desc *desc;
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DEFINE_DMA_UNMAP_ADDR(mapaddr);
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};
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struct rocker_dma_ring_info {
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size_t size;
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u32 head;
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u32 tail;
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struct rocker_desc *desc; /* mapped */
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dma_addr_t mapaddr;
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struct rocker_desc_info *desc_info;
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unsigned int type;
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};
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struct rocker;
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enum {
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ROCKER_CTRL_LINK_LOCAL_MCAST,
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ROCKER_CTRL_LOCAL_ARP,
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ROCKER_CTRL_IPV4_MCAST,
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ROCKER_CTRL_IPV6_MCAST,
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ROCKER_CTRL_DFLT_BRIDGING,
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ROCKER_CTRL_MAX,
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};
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#define ROCKER_INTERNAL_VLAN_ID_BASE 0x0f00
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#define ROCKER_N_INTERNAL_VLANS 255
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#define ROCKER_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID)
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#define ROCKER_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(ROCKER_N_INTERNAL_VLANS)
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struct rocker_port {
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struct net_device *dev;
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struct net_device *bridge_dev;
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struct rocker *rocker;
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unsigned int port_number;
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u32 pport;
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__be16 internal_vlan_id;
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int stp_state;
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u32 brport_flags;
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bool ctrls[ROCKER_CTRL_MAX];
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unsigned long vlan_bitmap[ROCKER_VLAN_BITMAP_LEN];
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struct napi_struct napi_tx;
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struct napi_struct napi_rx;
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struct rocker_dma_ring_info tx_ring;
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struct rocker_dma_ring_info rx_ring;
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};
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struct rocker {
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struct pci_dev *pdev;
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u8 __iomem *hw_addr;
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struct msix_entry *msix_entries;
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unsigned int port_count;
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struct rocker_port **ports;
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struct {
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u64 id;
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} hw;
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spinlock_t cmd_ring_lock;
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struct rocker_dma_ring_info cmd_ring;
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struct rocker_dma_ring_info event_ring;
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DECLARE_HASHTABLE(flow_tbl, 16);
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spinlock_t flow_tbl_lock;
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u64 flow_tbl_next_cookie;
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DECLARE_HASHTABLE(group_tbl, 16);
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spinlock_t group_tbl_lock;
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DECLARE_HASHTABLE(fdb_tbl, 16);
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spinlock_t fdb_tbl_lock;
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unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN];
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DECLARE_HASHTABLE(internal_vlan_tbl, 8);
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spinlock_t internal_vlan_tbl_lock;
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DECLARE_HASHTABLE(neigh_tbl, 16);
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spinlock_t neigh_tbl_lock;
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u32 neigh_tbl_next_index;
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};
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static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
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static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
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static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
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static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
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static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
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static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
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static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
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static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
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static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
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/* Rocker priority levels for flow table entries. Higher
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* priority match takes precedence over lower priority match.
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*/
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enum {
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ROCKER_PRIORITY_UNKNOWN = 0,
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ROCKER_PRIORITY_IG_PORT = 1,
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ROCKER_PRIORITY_VLAN = 1,
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ROCKER_PRIORITY_TERM_MAC_UCAST = 0,
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ROCKER_PRIORITY_TERM_MAC_MCAST = 1,
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ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1,
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ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2,
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ROCKER_PRIORITY_BRIDGING_VLAN = 3,
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ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1,
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ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2,
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ROCKER_PRIORITY_BRIDGING_TENANT = 3,
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ROCKER_PRIORITY_ACL_CTRL = 3,
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ROCKER_PRIORITY_ACL_NORMAL = 2,
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ROCKER_PRIORITY_ACL_DFLT = 1,
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};
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static bool rocker_vlan_id_is_internal(__be16 vlan_id)
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{
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u16 start = ROCKER_INTERNAL_VLAN_ID_BASE;
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u16 end = 0xffe;
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u16 _vlan_id = ntohs(vlan_id);
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return (_vlan_id >= start && _vlan_id <= end);
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}
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static __be16 rocker_port_vid_to_vlan(struct rocker_port *rocker_port,
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u16 vid, bool *pop_vlan)
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{
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__be16 vlan_id;
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if (pop_vlan)
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*pop_vlan = false;
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vlan_id = htons(vid);
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if (!vlan_id) {
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vlan_id = rocker_port->internal_vlan_id;
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if (pop_vlan)
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*pop_vlan = true;
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}
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return vlan_id;
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}
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static u16 rocker_port_vlan_to_vid(struct rocker_port *rocker_port,
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__be16 vlan_id)
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{
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if (rocker_vlan_id_is_internal(vlan_id))
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return 0;
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return ntohs(vlan_id);
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}
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static bool rocker_port_is_bridged(struct rocker_port *rocker_port)
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{
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return !!rocker_port->bridge_dev;
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}
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struct rocker_wait {
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wait_queue_head_t wait;
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bool done;
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bool nowait;
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};
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static void rocker_wait_reset(struct rocker_wait *wait)
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{
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wait->done = false;
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wait->nowait = false;
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}
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static void rocker_wait_init(struct rocker_wait *wait)
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{
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init_waitqueue_head(&wait->wait);
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rocker_wait_reset(wait);
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}
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static struct rocker_wait *rocker_wait_create(gfp_t gfp)
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{
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struct rocker_wait *wait;
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wait = kmalloc(sizeof(*wait), gfp);
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if (!wait)
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return NULL;
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rocker_wait_init(wait);
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return wait;
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}
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static void rocker_wait_destroy(struct rocker_wait *work)
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{
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kfree(work);
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}
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static bool rocker_wait_event_timeout(struct rocker_wait *wait,
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unsigned long timeout)
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{
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wait_event_timeout(wait->wait, wait->done, HZ / 10);
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if (!wait->done)
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return false;
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return true;
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}
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static void rocker_wait_wake_up(struct rocker_wait *wait)
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{
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wait->done = true;
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wake_up(&wait->wait);
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}
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static u32 rocker_msix_vector(struct rocker *rocker, unsigned int vector)
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{
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return rocker->msix_entries[vector].vector;
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}
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static u32 rocker_msix_tx_vector(struct rocker_port *rocker_port)
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{
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return rocker_msix_vector(rocker_port->rocker,
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ROCKER_MSIX_VEC_TX(rocker_port->port_number));
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}
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static u32 rocker_msix_rx_vector(struct rocker_port *rocker_port)
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{
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return rocker_msix_vector(rocker_port->rocker,
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ROCKER_MSIX_VEC_RX(rocker_port->port_number));
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}
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#define rocker_write32(rocker, reg, val) \
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writel((val), (rocker)->hw_addr + (ROCKER_ ## reg))
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#define rocker_read32(rocker, reg) \
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readl((rocker)->hw_addr + (ROCKER_ ## reg))
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#define rocker_write64(rocker, reg, val) \
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writeq((val), (rocker)->hw_addr + (ROCKER_ ## reg))
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#define rocker_read64(rocker, reg) \
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readq((rocker)->hw_addr + (ROCKER_ ## reg))
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/*****************************
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* HW basic testing functions
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*****************************/
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static int rocker_reg_test(struct rocker *rocker)
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{
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struct pci_dev *pdev = rocker->pdev;
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u64 test_reg;
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u64 rnd;
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rnd = prandom_u32();
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rnd >>= 1;
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rocker_write32(rocker, TEST_REG, rnd);
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test_reg = rocker_read32(rocker, TEST_REG);
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if (test_reg != rnd * 2) {
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dev_err(&pdev->dev, "unexpected 32bit register value %08llx, expected %08llx\n",
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test_reg, rnd * 2);
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return -EIO;
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}
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rnd = prandom_u32();
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rnd <<= 31;
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rnd |= prandom_u32();
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rocker_write64(rocker, TEST_REG64, rnd);
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test_reg = rocker_read64(rocker, TEST_REG64);
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if (test_reg != rnd * 2) {
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dev_err(&pdev->dev, "unexpected 64bit register value %16llx, expected %16llx\n",
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test_reg, rnd * 2);
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return -EIO;
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}
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return 0;
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}
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static int rocker_dma_test_one(struct rocker *rocker, struct rocker_wait *wait,
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u32 test_type, dma_addr_t dma_handle,
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unsigned char *buf, unsigned char *expect,
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size_t size)
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{
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struct pci_dev *pdev = rocker->pdev;
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int i;
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rocker_wait_reset(wait);
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rocker_write32(rocker, TEST_DMA_CTRL, test_type);
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if (!rocker_wait_event_timeout(wait, HZ / 10)) {
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dev_err(&pdev->dev, "no interrupt received within a timeout\n");
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return -EIO;
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}
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for (i = 0; i < size; i++) {
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if (buf[i] != expect[i]) {
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dev_err(&pdev->dev, "unexpected memory content %02x at byte %x\n, %02x expected",
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buf[i], i, expect[i]);
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return -EIO;
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}
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}
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return 0;
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}
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#define ROCKER_TEST_DMA_BUF_SIZE (PAGE_SIZE * 4)
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#define ROCKER_TEST_DMA_FILL_PATTERN 0x96
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static int rocker_dma_test_offset(struct rocker *rocker,
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struct rocker_wait *wait, int offset)
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{
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struct pci_dev *pdev = rocker->pdev;
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unsigned char *alloc;
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unsigned char *buf;
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unsigned char *expect;
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dma_addr_t dma_handle;
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int i;
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int err;
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alloc = kzalloc(ROCKER_TEST_DMA_BUF_SIZE * 2 + offset,
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GFP_KERNEL | GFP_DMA);
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if (!alloc)
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return -ENOMEM;
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buf = alloc + offset;
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expect = buf + ROCKER_TEST_DMA_BUF_SIZE;
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dma_handle = pci_map_single(pdev, buf, ROCKER_TEST_DMA_BUF_SIZE,
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PCI_DMA_BIDIRECTIONAL);
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if (pci_dma_mapping_error(pdev, dma_handle)) {
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err = -EIO;
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goto free_alloc;
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}
|
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|
|
rocker_write64(rocker, TEST_DMA_ADDR, dma_handle);
|
|
rocker_write32(rocker, TEST_DMA_SIZE, ROCKER_TEST_DMA_BUF_SIZE);
|
|
|
|
memset(expect, ROCKER_TEST_DMA_FILL_PATTERN, ROCKER_TEST_DMA_BUF_SIZE);
|
|
err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_FILL,
|
|
dma_handle, buf, expect,
|
|
ROCKER_TEST_DMA_BUF_SIZE);
|
|
if (err)
|
|
goto unmap;
|
|
|
|
memset(expect, 0, ROCKER_TEST_DMA_BUF_SIZE);
|
|
err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_CLEAR,
|
|
dma_handle, buf, expect,
|
|
ROCKER_TEST_DMA_BUF_SIZE);
|
|
if (err)
|
|
goto unmap;
|
|
|
|
prandom_bytes(buf, ROCKER_TEST_DMA_BUF_SIZE);
|
|
for (i = 0; i < ROCKER_TEST_DMA_BUF_SIZE; i++)
|
|
expect[i] = ~buf[i];
|
|
err = rocker_dma_test_one(rocker, wait, ROCKER_TEST_DMA_CTRL_INVERT,
|
|
dma_handle, buf, expect,
|
|
ROCKER_TEST_DMA_BUF_SIZE);
|
|
if (err)
|
|
goto unmap;
|
|
|
|
unmap:
|
|
pci_unmap_single(pdev, dma_handle, ROCKER_TEST_DMA_BUF_SIZE,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
free_alloc:
|
|
kfree(alloc);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_dma_test(struct rocker *rocker, struct rocker_wait *wait)
|
|
{
|
|
int i;
|
|
int err;
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
err = rocker_dma_test_offset(rocker, wait, i);
|
|
if (err)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t rocker_test_irq_handler(int irq, void *dev_id)
|
|
{
|
|
struct rocker_wait *wait = dev_id;
|
|
|
|
rocker_wait_wake_up(wait);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int rocker_basic_hw_test(struct rocker *rocker)
|
|
{
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
struct rocker_wait wait;
|
|
int err;
|
|
|
|
err = rocker_reg_test(rocker);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "reg test failed\n");
|
|
return err;
|
|
}
|
|
|
|
err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST),
|
|
rocker_test_irq_handler, 0,
|
|
rocker_driver_name, &wait);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "cannot assign test irq\n");
|
|
return err;
|
|
}
|
|
|
|
rocker_wait_init(&wait);
|
|
rocker_write32(rocker, TEST_IRQ, ROCKER_MSIX_VEC_TEST);
|
|
|
|
if (!rocker_wait_event_timeout(&wait, HZ / 10)) {
|
|
dev_err(&pdev->dev, "no interrupt received within a timeout\n");
|
|
err = -EIO;
|
|
goto free_irq;
|
|
}
|
|
|
|
err = rocker_dma_test(rocker, &wait);
|
|
if (err)
|
|
dev_err(&pdev->dev, "dma test failed\n");
|
|
|
|
free_irq:
|
|
free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_TEST), &wait);
|
|
return err;
|
|
}
|
|
|
|
/******
|
|
* TLV
|
|
******/
|
|
|
|
#define ROCKER_TLV_ALIGNTO 8U
|
|
#define ROCKER_TLV_ALIGN(len) \
|
|
(((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
|
|
#define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
|
|
|
|
/* <------- ROCKER_TLV_HDRLEN -------> <--- ROCKER_TLV_ALIGN(payload) --->
|
|
* +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
|
|
* | Header | Pad | Payload | Pad |
|
|
* | (struct rocker_tlv) | ing | | ing |
|
|
* +-----------------------------+- - -+- - - - - - - - - - - - - - -+- - -+
|
|
* <--------------------------- tlv->len -------------------------->
|
|
*/
|
|
|
|
static struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv,
|
|
int *remaining)
|
|
{
|
|
int totlen = ROCKER_TLV_ALIGN(tlv->len);
|
|
|
|
*remaining -= totlen;
|
|
return (struct rocker_tlv *) ((char *) tlv + totlen);
|
|
}
|
|
|
|
static int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining)
|
|
{
|
|
return remaining >= (int) ROCKER_TLV_HDRLEN &&
|
|
tlv->len >= ROCKER_TLV_HDRLEN &&
|
|
tlv->len <= remaining;
|
|
}
|
|
|
|
#define rocker_tlv_for_each(pos, head, len, rem) \
|
|
for (pos = head, rem = len; \
|
|
rocker_tlv_ok(pos, rem); \
|
|
pos = rocker_tlv_next(pos, &(rem)))
|
|
|
|
#define rocker_tlv_for_each_nested(pos, tlv, rem) \
|
|
rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
|
|
rocker_tlv_len(tlv), rem)
|
|
|
|
static int rocker_tlv_attr_size(int payload)
|
|
{
|
|
return ROCKER_TLV_HDRLEN + payload;
|
|
}
|
|
|
|
static int rocker_tlv_total_size(int payload)
|
|
{
|
|
return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload));
|
|
}
|
|
|
|
static int rocker_tlv_padlen(int payload)
|
|
{
|
|
return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload);
|
|
}
|
|
|
|
static int rocker_tlv_type(const struct rocker_tlv *tlv)
|
|
{
|
|
return tlv->type;
|
|
}
|
|
|
|
static void *rocker_tlv_data(const struct rocker_tlv *tlv)
|
|
{
|
|
return (char *) tlv + ROCKER_TLV_HDRLEN;
|
|
}
|
|
|
|
static int rocker_tlv_len(const struct rocker_tlv *tlv)
|
|
{
|
|
return tlv->len - ROCKER_TLV_HDRLEN;
|
|
}
|
|
|
|
static u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv)
|
|
{
|
|
return *(u8 *) rocker_tlv_data(tlv);
|
|
}
|
|
|
|
static u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv)
|
|
{
|
|
return *(u16 *) rocker_tlv_data(tlv);
|
|
}
|
|
|
|
static __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv)
|
|
{
|
|
return *(__be16 *) rocker_tlv_data(tlv);
|
|
}
|
|
|
|
static u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv)
|
|
{
|
|
return *(u32 *) rocker_tlv_data(tlv);
|
|
}
|
|
|
|
static u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv)
|
|
{
|
|
return *(u64 *) rocker_tlv_data(tlv);
|
|
}
|
|
|
|
static void rocker_tlv_parse(struct rocker_tlv **tb, int maxtype,
|
|
const char *buf, int buf_len)
|
|
{
|
|
const struct rocker_tlv *tlv;
|
|
const struct rocker_tlv *head = (const struct rocker_tlv *) buf;
|
|
int rem;
|
|
|
|
memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1));
|
|
|
|
rocker_tlv_for_each(tlv, head, buf_len, rem) {
|
|
u32 type = rocker_tlv_type(tlv);
|
|
|
|
if (type > 0 && type <= maxtype)
|
|
tb[type] = (struct rocker_tlv *) tlv;
|
|
}
|
|
}
|
|
|
|
static void rocker_tlv_parse_nested(struct rocker_tlv **tb, int maxtype,
|
|
const struct rocker_tlv *tlv)
|
|
{
|
|
rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv),
|
|
rocker_tlv_len(tlv));
|
|
}
|
|
|
|
static void rocker_tlv_parse_desc(struct rocker_tlv **tb, int maxtype,
|
|
struct rocker_desc_info *desc_info)
|
|
{
|
|
rocker_tlv_parse(tb, maxtype, desc_info->data,
|
|
desc_info->desc->tlv_size);
|
|
}
|
|
|
|
static struct rocker_tlv *rocker_tlv_start(struct rocker_desc_info *desc_info)
|
|
{
|
|
return (struct rocker_tlv *) ((char *) desc_info->data +
|
|
desc_info->tlv_size);
|
|
}
|
|
|
|
static int rocker_tlv_put(struct rocker_desc_info *desc_info,
|
|
int attrtype, int attrlen, const void *data)
|
|
{
|
|
int tail_room = desc_info->data_size - desc_info->tlv_size;
|
|
int total_size = rocker_tlv_total_size(attrlen);
|
|
struct rocker_tlv *tlv;
|
|
|
|
if (unlikely(tail_room < total_size))
|
|
return -EMSGSIZE;
|
|
|
|
tlv = rocker_tlv_start(desc_info);
|
|
desc_info->tlv_size += total_size;
|
|
tlv->type = attrtype;
|
|
tlv->len = rocker_tlv_attr_size(attrlen);
|
|
memcpy(rocker_tlv_data(tlv), data, attrlen);
|
|
memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen));
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_tlv_put_u8(struct rocker_desc_info *desc_info,
|
|
int attrtype, u8 value)
|
|
{
|
|
return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value);
|
|
}
|
|
|
|
static int rocker_tlv_put_u16(struct rocker_desc_info *desc_info,
|
|
int attrtype, u16 value)
|
|
{
|
|
return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value);
|
|
}
|
|
|
|
static int rocker_tlv_put_be16(struct rocker_desc_info *desc_info,
|
|
int attrtype, __be16 value)
|
|
{
|
|
return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value);
|
|
}
|
|
|
|
static int rocker_tlv_put_u32(struct rocker_desc_info *desc_info,
|
|
int attrtype, u32 value)
|
|
{
|
|
return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value);
|
|
}
|
|
|
|
static int rocker_tlv_put_be32(struct rocker_desc_info *desc_info,
|
|
int attrtype, __be32 value)
|
|
{
|
|
return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value);
|
|
}
|
|
|
|
static int rocker_tlv_put_u64(struct rocker_desc_info *desc_info,
|
|
int attrtype, u64 value)
|
|
{
|
|
return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value);
|
|
}
|
|
|
|
static struct rocker_tlv *
|
|
rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype)
|
|
{
|
|
struct rocker_tlv *start = rocker_tlv_start(desc_info);
|
|
|
|
if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0)
|
|
return NULL;
|
|
|
|
return start;
|
|
}
|
|
|
|
static void rocker_tlv_nest_end(struct rocker_desc_info *desc_info,
|
|
struct rocker_tlv *start)
|
|
{
|
|
start->len = (char *) rocker_tlv_start(desc_info) - (char *) start;
|
|
}
|
|
|
|
static void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info,
|
|
struct rocker_tlv *start)
|
|
{
|
|
desc_info->tlv_size = (char *) start - desc_info->data;
|
|
}
|
|
|
|
/******************************************
|
|
* DMA rings and descriptors manipulations
|
|
******************************************/
|
|
|
|
static u32 __pos_inc(u32 pos, size_t limit)
|
|
{
|
|
return ++pos == limit ? 0 : pos;
|
|
}
|
|
|
|
static int rocker_desc_err(struct rocker_desc_info *desc_info)
|
|
{
|
|
int err = desc_info->desc->comp_err & ~ROCKER_DMA_DESC_COMP_ERR_GEN;
|
|
|
|
switch (err) {
|
|
case ROCKER_OK:
|
|
return 0;
|
|
case -ROCKER_ENOENT:
|
|
return -ENOENT;
|
|
case -ROCKER_ENXIO:
|
|
return -ENXIO;
|
|
case -ROCKER_ENOMEM:
|
|
return -ENOMEM;
|
|
case -ROCKER_EEXIST:
|
|
return -EEXIST;
|
|
case -ROCKER_EINVAL:
|
|
return -EINVAL;
|
|
case -ROCKER_EMSGSIZE:
|
|
return -EMSGSIZE;
|
|
case -ROCKER_ENOTSUP:
|
|
return -EOPNOTSUPP;
|
|
case -ROCKER_ENOBUFS:
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static void rocker_desc_gen_clear(struct rocker_desc_info *desc_info)
|
|
{
|
|
desc_info->desc->comp_err &= ~ROCKER_DMA_DESC_COMP_ERR_GEN;
|
|
}
|
|
|
|
static bool rocker_desc_gen(struct rocker_desc_info *desc_info)
|
|
{
|
|
u32 comp_err = desc_info->desc->comp_err;
|
|
|
|
return comp_err & ROCKER_DMA_DESC_COMP_ERR_GEN ? true : false;
|
|
}
|
|
|
|
static void *rocker_desc_cookie_ptr_get(struct rocker_desc_info *desc_info)
|
|
{
|
|
return (void *)(uintptr_t)desc_info->desc->cookie;
|
|
}
|
|
|
|
static void rocker_desc_cookie_ptr_set(struct rocker_desc_info *desc_info,
|
|
void *ptr)
|
|
{
|
|
desc_info->desc->cookie = (uintptr_t) ptr;
|
|
}
|
|
|
|
static struct rocker_desc_info *
|
|
rocker_desc_head_get(struct rocker_dma_ring_info *info)
|
|
{
|
|
static struct rocker_desc_info *desc_info;
|
|
u32 head = __pos_inc(info->head, info->size);
|
|
|
|
desc_info = &info->desc_info[info->head];
|
|
if (head == info->tail)
|
|
return NULL; /* ring full */
|
|
desc_info->tlv_size = 0;
|
|
return desc_info;
|
|
}
|
|
|
|
static void rocker_desc_commit(struct rocker_desc_info *desc_info)
|
|
{
|
|
desc_info->desc->buf_size = desc_info->data_size;
|
|
desc_info->desc->tlv_size = desc_info->tlv_size;
|
|
}
|
|
|
|
static void rocker_desc_head_set(struct rocker *rocker,
|
|
struct rocker_dma_ring_info *info,
|
|
struct rocker_desc_info *desc_info)
|
|
{
|
|
u32 head = __pos_inc(info->head, info->size);
|
|
|
|
BUG_ON(head == info->tail);
|
|
rocker_desc_commit(desc_info);
|
|
info->head = head;
|
|
rocker_write32(rocker, DMA_DESC_HEAD(info->type), head);
|
|
}
|
|
|
|
static struct rocker_desc_info *
|
|
rocker_desc_tail_get(struct rocker_dma_ring_info *info)
|
|
{
|
|
static struct rocker_desc_info *desc_info;
|
|
|
|
if (info->tail == info->head)
|
|
return NULL; /* nothing to be done between head and tail */
|
|
desc_info = &info->desc_info[info->tail];
|
|
if (!rocker_desc_gen(desc_info))
|
|
return NULL; /* gen bit not set, desc is not ready yet */
|
|
info->tail = __pos_inc(info->tail, info->size);
|
|
desc_info->tlv_size = desc_info->desc->tlv_size;
|
|
return desc_info;
|
|
}
|
|
|
|
static void rocker_dma_ring_credits_set(struct rocker *rocker,
|
|
struct rocker_dma_ring_info *info,
|
|
u32 credits)
|
|
{
|
|
if (credits)
|
|
rocker_write32(rocker, DMA_DESC_CREDITS(info->type), credits);
|
|
}
|
|
|
|
static unsigned long rocker_dma_ring_size_fix(size_t size)
|
|
{
|
|
return max(ROCKER_DMA_SIZE_MIN,
|
|
min(roundup_pow_of_two(size), ROCKER_DMA_SIZE_MAX));
|
|
}
|
|
|
|
static int rocker_dma_ring_create(struct rocker *rocker,
|
|
unsigned int type,
|
|
size_t size,
|
|
struct rocker_dma_ring_info *info)
|
|
{
|
|
int i;
|
|
|
|
BUG_ON(size != rocker_dma_ring_size_fix(size));
|
|
info->size = size;
|
|
info->type = type;
|
|
info->head = 0;
|
|
info->tail = 0;
|
|
info->desc_info = kcalloc(info->size, sizeof(*info->desc_info),
|
|
GFP_KERNEL);
|
|
if (!info->desc_info)
|
|
return -ENOMEM;
|
|
|
|
info->desc = pci_alloc_consistent(rocker->pdev,
|
|
info->size * sizeof(*info->desc),
|
|
&info->mapaddr);
|
|
if (!info->desc) {
|
|
kfree(info->desc_info);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (i = 0; i < info->size; i++)
|
|
info->desc_info[i].desc = &info->desc[i];
|
|
|
|
rocker_write32(rocker, DMA_DESC_CTRL(info->type),
|
|
ROCKER_DMA_DESC_CTRL_RESET);
|
|
rocker_write64(rocker, DMA_DESC_ADDR(info->type), info->mapaddr);
|
|
rocker_write32(rocker, DMA_DESC_SIZE(info->type), info->size);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rocker_dma_ring_destroy(struct rocker *rocker,
|
|
struct rocker_dma_ring_info *info)
|
|
{
|
|
rocker_write64(rocker, DMA_DESC_ADDR(info->type), 0);
|
|
|
|
pci_free_consistent(rocker->pdev,
|
|
info->size * sizeof(struct rocker_desc),
|
|
info->desc, info->mapaddr);
|
|
kfree(info->desc_info);
|
|
}
|
|
|
|
static void rocker_dma_ring_pass_to_producer(struct rocker *rocker,
|
|
struct rocker_dma_ring_info *info)
|
|
{
|
|
int i;
|
|
|
|
BUG_ON(info->head || info->tail);
|
|
|
|
/* When ring is consumer, we need to advance head for each desc.
|
|
* That tells hw that the desc is ready to be used by it.
|
|
*/
|
|
for (i = 0; i < info->size - 1; i++)
|
|
rocker_desc_head_set(rocker, info, &info->desc_info[i]);
|
|
rocker_desc_commit(&info->desc_info[i]);
|
|
}
|
|
|
|
static int rocker_dma_ring_bufs_alloc(struct rocker *rocker,
|
|
struct rocker_dma_ring_info *info,
|
|
int direction, size_t buf_size)
|
|
{
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
int i;
|
|
int err;
|
|
|
|
for (i = 0; i < info->size; i++) {
|
|
struct rocker_desc_info *desc_info = &info->desc_info[i];
|
|
struct rocker_desc *desc = &info->desc[i];
|
|
dma_addr_t dma_handle;
|
|
char *buf;
|
|
|
|
buf = kzalloc(buf_size, GFP_KERNEL | GFP_DMA);
|
|
if (!buf) {
|
|
err = -ENOMEM;
|
|
goto rollback;
|
|
}
|
|
|
|
dma_handle = pci_map_single(pdev, buf, buf_size, direction);
|
|
if (pci_dma_mapping_error(pdev, dma_handle)) {
|
|
kfree(buf);
|
|
err = -EIO;
|
|
goto rollback;
|
|
}
|
|
|
|
desc_info->data = buf;
|
|
desc_info->data_size = buf_size;
|
|
dma_unmap_addr_set(desc_info, mapaddr, dma_handle);
|
|
|
|
desc->buf_addr = dma_handle;
|
|
desc->buf_size = buf_size;
|
|
}
|
|
return 0;
|
|
|
|
rollback:
|
|
for (i--; i >= 0; i--) {
|
|
struct rocker_desc_info *desc_info = &info->desc_info[i];
|
|
|
|
pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
|
|
desc_info->data_size, direction);
|
|
kfree(desc_info->data);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static void rocker_dma_ring_bufs_free(struct rocker *rocker,
|
|
struct rocker_dma_ring_info *info,
|
|
int direction)
|
|
{
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
int i;
|
|
|
|
for (i = 0; i < info->size; i++) {
|
|
struct rocker_desc_info *desc_info = &info->desc_info[i];
|
|
struct rocker_desc *desc = &info->desc[i];
|
|
|
|
desc->buf_addr = 0;
|
|
desc->buf_size = 0;
|
|
pci_unmap_single(pdev, dma_unmap_addr(desc_info, mapaddr),
|
|
desc_info->data_size, direction);
|
|
kfree(desc_info->data);
|
|
}
|
|
}
|
|
|
|
static int rocker_dma_rings_init(struct rocker *rocker)
|
|
{
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
int err;
|
|
|
|
err = rocker_dma_ring_create(rocker, ROCKER_DMA_CMD,
|
|
ROCKER_DMA_CMD_DEFAULT_SIZE,
|
|
&rocker->cmd_ring);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "failed to create command dma ring\n");
|
|
return err;
|
|
}
|
|
|
|
spin_lock_init(&rocker->cmd_ring_lock);
|
|
|
|
err = rocker_dma_ring_bufs_alloc(rocker, &rocker->cmd_ring,
|
|
PCI_DMA_BIDIRECTIONAL, PAGE_SIZE);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "failed to alloc command dma ring buffers\n");
|
|
goto err_dma_cmd_ring_bufs_alloc;
|
|
}
|
|
|
|
err = rocker_dma_ring_create(rocker, ROCKER_DMA_EVENT,
|
|
ROCKER_DMA_EVENT_DEFAULT_SIZE,
|
|
&rocker->event_ring);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "failed to create event dma ring\n");
|
|
goto err_dma_event_ring_create;
|
|
}
|
|
|
|
err = rocker_dma_ring_bufs_alloc(rocker, &rocker->event_ring,
|
|
PCI_DMA_FROMDEVICE, PAGE_SIZE);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "failed to alloc event dma ring buffers\n");
|
|
goto err_dma_event_ring_bufs_alloc;
|
|
}
|
|
rocker_dma_ring_pass_to_producer(rocker, &rocker->event_ring);
|
|
return 0;
|
|
|
|
err_dma_event_ring_bufs_alloc:
|
|
rocker_dma_ring_destroy(rocker, &rocker->event_ring);
|
|
err_dma_event_ring_create:
|
|
rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
err_dma_cmd_ring_bufs_alloc:
|
|
rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
|
|
return err;
|
|
}
|
|
|
|
static void rocker_dma_rings_fini(struct rocker *rocker)
|
|
{
|
|
rocker_dma_ring_bufs_free(rocker, &rocker->event_ring,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
rocker_dma_ring_destroy(rocker, &rocker->event_ring);
|
|
rocker_dma_ring_bufs_free(rocker, &rocker->cmd_ring,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
rocker_dma_ring_destroy(rocker, &rocker->cmd_ring);
|
|
}
|
|
|
|
static int rocker_dma_rx_ring_skb_map(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
struct sk_buff *skb, size_t buf_len)
|
|
{
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
dma_addr_t dma_handle;
|
|
|
|
dma_handle = pci_map_single(pdev, skb->data, buf_len,
|
|
PCI_DMA_FROMDEVICE);
|
|
if (pci_dma_mapping_error(pdev, dma_handle))
|
|
return -EIO;
|
|
if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_RX_FRAG_ADDR, dma_handle))
|
|
goto tlv_put_failure;
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_RX_FRAG_MAX_LEN, buf_len))
|
|
goto tlv_put_failure;
|
|
return 0;
|
|
|
|
tlv_put_failure:
|
|
pci_unmap_single(pdev, dma_handle, buf_len, PCI_DMA_FROMDEVICE);
|
|
desc_info->tlv_size = 0;
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static size_t rocker_port_rx_buf_len(struct rocker_port *rocker_port)
|
|
{
|
|
return rocker_port->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
|
|
}
|
|
|
|
static int rocker_dma_rx_ring_skb_alloc(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info)
|
|
{
|
|
struct net_device *dev = rocker_port->dev;
|
|
struct sk_buff *skb;
|
|
size_t buf_len = rocker_port_rx_buf_len(rocker_port);
|
|
int err;
|
|
|
|
/* Ensure that hw will see tlv_size zero in case of an error.
|
|
* That tells hw to use another descriptor.
|
|
*/
|
|
rocker_desc_cookie_ptr_set(desc_info, NULL);
|
|
desc_info->tlv_size = 0;
|
|
|
|
skb = netdev_alloc_skb_ip_align(dev, buf_len);
|
|
if (!skb)
|
|
return -ENOMEM;
|
|
err = rocker_dma_rx_ring_skb_map(rocker, rocker_port, desc_info,
|
|
skb, buf_len);
|
|
if (err) {
|
|
dev_kfree_skb_any(skb);
|
|
return err;
|
|
}
|
|
rocker_desc_cookie_ptr_set(desc_info, skb);
|
|
return 0;
|
|
}
|
|
|
|
static void rocker_dma_rx_ring_skb_unmap(struct rocker *rocker,
|
|
struct rocker_tlv **attrs)
|
|
{
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
dma_addr_t dma_handle;
|
|
size_t len;
|
|
|
|
if (!attrs[ROCKER_TLV_RX_FRAG_ADDR] ||
|
|
!attrs[ROCKER_TLV_RX_FRAG_MAX_LEN])
|
|
return;
|
|
dma_handle = rocker_tlv_get_u64(attrs[ROCKER_TLV_RX_FRAG_ADDR]);
|
|
len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_MAX_LEN]);
|
|
pci_unmap_single(pdev, dma_handle, len, PCI_DMA_FROMDEVICE);
|
|
}
|
|
|
|
static void rocker_dma_rx_ring_skb_free(struct rocker *rocker,
|
|
struct rocker_desc_info *desc_info)
|
|
{
|
|
struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
|
|
struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
|
|
|
|
if (!skb)
|
|
return;
|
|
rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
|
|
rocker_dma_rx_ring_skb_unmap(rocker, attrs);
|
|
dev_kfree_skb_any(skb);
|
|
}
|
|
|
|
static int rocker_dma_rx_ring_skbs_alloc(struct rocker *rocker,
|
|
struct rocker_port *rocker_port)
|
|
{
|
|
struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
|
|
int i;
|
|
int err;
|
|
|
|
for (i = 0; i < rx_ring->size; i++) {
|
|
err = rocker_dma_rx_ring_skb_alloc(rocker, rocker_port,
|
|
&rx_ring->desc_info[i]);
|
|
if (err)
|
|
goto rollback;
|
|
}
|
|
return 0;
|
|
|
|
rollback:
|
|
for (i--; i >= 0; i--)
|
|
rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
|
|
return err;
|
|
}
|
|
|
|
static void rocker_dma_rx_ring_skbs_free(struct rocker *rocker,
|
|
struct rocker_port *rocker_port)
|
|
{
|
|
struct rocker_dma_ring_info *rx_ring = &rocker_port->rx_ring;
|
|
int i;
|
|
|
|
for (i = 0; i < rx_ring->size; i++)
|
|
rocker_dma_rx_ring_skb_free(rocker, &rx_ring->desc_info[i]);
|
|
}
|
|
|
|
static int rocker_port_dma_rings_init(struct rocker_port *rocker_port)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
int err;
|
|
|
|
err = rocker_dma_ring_create(rocker,
|
|
ROCKER_DMA_TX(rocker_port->port_number),
|
|
ROCKER_DMA_TX_DEFAULT_SIZE,
|
|
&rocker_port->tx_ring);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev, "failed to create tx dma ring\n");
|
|
return err;
|
|
}
|
|
|
|
err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->tx_ring,
|
|
PCI_DMA_TODEVICE,
|
|
ROCKER_DMA_TX_DESC_SIZE);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev, "failed to alloc tx dma ring buffers\n");
|
|
goto err_dma_tx_ring_bufs_alloc;
|
|
}
|
|
|
|
err = rocker_dma_ring_create(rocker,
|
|
ROCKER_DMA_RX(rocker_port->port_number),
|
|
ROCKER_DMA_RX_DEFAULT_SIZE,
|
|
&rocker_port->rx_ring);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev, "failed to create rx dma ring\n");
|
|
goto err_dma_rx_ring_create;
|
|
}
|
|
|
|
err = rocker_dma_ring_bufs_alloc(rocker, &rocker_port->rx_ring,
|
|
PCI_DMA_BIDIRECTIONAL,
|
|
ROCKER_DMA_RX_DESC_SIZE);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev, "failed to alloc rx dma ring buffers\n");
|
|
goto err_dma_rx_ring_bufs_alloc;
|
|
}
|
|
|
|
err = rocker_dma_rx_ring_skbs_alloc(rocker, rocker_port);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev, "failed to alloc rx dma ring skbs\n");
|
|
goto err_dma_rx_ring_skbs_alloc;
|
|
}
|
|
rocker_dma_ring_pass_to_producer(rocker, &rocker_port->rx_ring);
|
|
|
|
return 0;
|
|
|
|
err_dma_rx_ring_skbs_alloc:
|
|
rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
err_dma_rx_ring_bufs_alloc:
|
|
rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
|
|
err_dma_rx_ring_create:
|
|
rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
|
|
PCI_DMA_TODEVICE);
|
|
err_dma_tx_ring_bufs_alloc:
|
|
rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
|
|
return err;
|
|
}
|
|
|
|
static void rocker_port_dma_rings_fini(struct rocker_port *rocker_port)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
|
|
rocker_dma_rx_ring_skbs_free(rocker, rocker_port);
|
|
rocker_dma_ring_bufs_free(rocker, &rocker_port->rx_ring,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
rocker_dma_ring_destroy(rocker, &rocker_port->rx_ring);
|
|
rocker_dma_ring_bufs_free(rocker, &rocker_port->tx_ring,
|
|
PCI_DMA_TODEVICE);
|
|
rocker_dma_ring_destroy(rocker, &rocker_port->tx_ring);
|
|
}
|
|
|
|
static void rocker_port_set_enable(struct rocker_port *rocker_port, bool enable)
|
|
{
|
|
u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);
|
|
|
|
if (enable)
|
|
val |= 1ULL << rocker_port->pport;
|
|
else
|
|
val &= ~(1ULL << rocker_port->pport);
|
|
rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
|
|
}
|
|
|
|
/********************************
|
|
* Interrupt handler and helpers
|
|
********************************/
|
|
|
|
static irqreturn_t rocker_cmd_irq_handler(int irq, void *dev_id)
|
|
{
|
|
struct rocker *rocker = dev_id;
|
|
struct rocker_desc_info *desc_info;
|
|
struct rocker_wait *wait;
|
|
u32 credits = 0;
|
|
|
|
spin_lock(&rocker->cmd_ring_lock);
|
|
while ((desc_info = rocker_desc_tail_get(&rocker->cmd_ring))) {
|
|
wait = rocker_desc_cookie_ptr_get(desc_info);
|
|
if (wait->nowait) {
|
|
rocker_desc_gen_clear(desc_info);
|
|
rocker_wait_destroy(wait);
|
|
} else {
|
|
rocker_wait_wake_up(wait);
|
|
}
|
|
credits++;
|
|
}
|
|
spin_unlock(&rocker->cmd_ring_lock);
|
|
rocker_dma_ring_credits_set(rocker, &rocker->cmd_ring, credits);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void rocker_port_link_up(struct rocker_port *rocker_port)
|
|
{
|
|
netif_carrier_on(rocker_port->dev);
|
|
netdev_info(rocker_port->dev, "Link is up\n");
|
|
}
|
|
|
|
static void rocker_port_link_down(struct rocker_port *rocker_port)
|
|
{
|
|
netif_carrier_off(rocker_port->dev);
|
|
netdev_info(rocker_port->dev, "Link is down\n");
|
|
}
|
|
|
|
static int rocker_event_link_change(struct rocker *rocker,
|
|
const struct rocker_tlv *info)
|
|
{
|
|
struct rocker_tlv *attrs[ROCKER_TLV_EVENT_LINK_CHANGED_MAX + 1];
|
|
unsigned int port_number;
|
|
bool link_up;
|
|
struct rocker_port *rocker_port;
|
|
|
|
rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_LINK_CHANGED_MAX, info);
|
|
if (!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT] ||
|
|
!attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP])
|
|
return -EIO;
|
|
port_number =
|
|
rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_PPORT]) - 1;
|
|
link_up = rocker_tlv_get_u8(attrs[ROCKER_TLV_EVENT_LINK_CHANGED_LINKUP]);
|
|
|
|
if (port_number >= rocker->port_count)
|
|
return -EINVAL;
|
|
|
|
rocker_port = rocker->ports[port_number];
|
|
if (netif_carrier_ok(rocker_port->dev) != link_up) {
|
|
if (link_up)
|
|
rocker_port_link_up(rocker_port);
|
|
else
|
|
rocker_port_link_down(rocker_port);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define ROCKER_OP_FLAG_REMOVE BIT(0)
|
|
#define ROCKER_OP_FLAG_NOWAIT BIT(1)
|
|
#define ROCKER_OP_FLAG_LEARNED BIT(2)
|
|
#define ROCKER_OP_FLAG_REFRESH BIT(3)
|
|
|
|
static int rocker_port_fdb(struct rocker_port *rocker_port,
|
|
const unsigned char *addr,
|
|
__be16 vlan_id, int flags);
|
|
|
|
static int rocker_event_mac_vlan_seen(struct rocker *rocker,
|
|
const struct rocker_tlv *info)
|
|
{
|
|
struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAX + 1];
|
|
unsigned int port_number;
|
|
struct rocker_port *rocker_port;
|
|
unsigned char *addr;
|
|
int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_LEARNED;
|
|
__be16 vlan_id;
|
|
|
|
rocker_tlv_parse_nested(attrs, ROCKER_TLV_EVENT_MAC_VLAN_MAX, info);
|
|
if (!attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT] ||
|
|
!attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC] ||
|
|
!attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID])
|
|
return -EIO;
|
|
port_number =
|
|
rocker_tlv_get_u32(attrs[ROCKER_TLV_EVENT_MAC_VLAN_PPORT]) - 1;
|
|
addr = rocker_tlv_data(attrs[ROCKER_TLV_EVENT_MAC_VLAN_MAC]);
|
|
vlan_id = rocker_tlv_get_be16(attrs[ROCKER_TLV_EVENT_MAC_VLAN_VLAN_ID]);
|
|
|
|
if (port_number >= rocker->port_count)
|
|
return -EINVAL;
|
|
|
|
rocker_port = rocker->ports[port_number];
|
|
|
|
if (rocker_port->stp_state != BR_STATE_LEARNING &&
|
|
rocker_port->stp_state != BR_STATE_FORWARDING)
|
|
return 0;
|
|
|
|
return rocker_port_fdb(rocker_port, addr, vlan_id, flags);
|
|
}
|
|
|
|
static int rocker_event_process(struct rocker *rocker,
|
|
struct rocker_desc_info *desc_info)
|
|
{
|
|
struct rocker_tlv *attrs[ROCKER_TLV_EVENT_MAX + 1];
|
|
struct rocker_tlv *info;
|
|
u16 type;
|
|
|
|
rocker_tlv_parse_desc(attrs, ROCKER_TLV_EVENT_MAX, desc_info);
|
|
if (!attrs[ROCKER_TLV_EVENT_TYPE] ||
|
|
!attrs[ROCKER_TLV_EVENT_INFO])
|
|
return -EIO;
|
|
|
|
type = rocker_tlv_get_u16(attrs[ROCKER_TLV_EVENT_TYPE]);
|
|
info = attrs[ROCKER_TLV_EVENT_INFO];
|
|
|
|
switch (type) {
|
|
case ROCKER_TLV_EVENT_TYPE_LINK_CHANGED:
|
|
return rocker_event_link_change(rocker, info);
|
|
case ROCKER_TLV_EVENT_TYPE_MAC_VLAN_SEEN:
|
|
return rocker_event_mac_vlan_seen(rocker, info);
|
|
}
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static irqreturn_t rocker_event_irq_handler(int irq, void *dev_id)
|
|
{
|
|
struct rocker *rocker = dev_id;
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
struct rocker_desc_info *desc_info;
|
|
u32 credits = 0;
|
|
int err;
|
|
|
|
while ((desc_info = rocker_desc_tail_get(&rocker->event_ring))) {
|
|
err = rocker_desc_err(desc_info);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "event desc received with err %d\n",
|
|
err);
|
|
} else {
|
|
err = rocker_event_process(rocker, desc_info);
|
|
if (err)
|
|
dev_err(&pdev->dev, "event processing failed with err %d\n",
|
|
err);
|
|
}
|
|
rocker_desc_gen_clear(desc_info);
|
|
rocker_desc_head_set(rocker, &rocker->event_ring, desc_info);
|
|
credits++;
|
|
}
|
|
rocker_dma_ring_credits_set(rocker, &rocker->event_ring, credits);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t rocker_tx_irq_handler(int irq, void *dev_id)
|
|
{
|
|
struct rocker_port *rocker_port = dev_id;
|
|
|
|
napi_schedule(&rocker_port->napi_tx);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t rocker_rx_irq_handler(int irq, void *dev_id)
|
|
{
|
|
struct rocker_port *rocker_port = dev_id;
|
|
|
|
napi_schedule(&rocker_port->napi_rx);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/********************
|
|
* Command interface
|
|
********************/
|
|
|
|
typedef int (*rocker_cmd_cb_t)(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv);
|
|
|
|
static int rocker_cmd_exec(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
rocker_cmd_cb_t prepare, void *prepare_priv,
|
|
rocker_cmd_cb_t process, void *process_priv,
|
|
bool nowait)
|
|
{
|
|
struct rocker_desc_info *desc_info;
|
|
struct rocker_wait *wait;
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
wait = rocker_wait_create(nowait ? GFP_ATOMIC : GFP_KERNEL);
|
|
if (!wait)
|
|
return -ENOMEM;
|
|
wait->nowait = nowait;
|
|
|
|
spin_lock_irqsave(&rocker->cmd_ring_lock, flags);
|
|
desc_info = rocker_desc_head_get(&rocker->cmd_ring);
|
|
if (!desc_info) {
|
|
spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
|
|
err = -EAGAIN;
|
|
goto out;
|
|
}
|
|
err = prepare(rocker, rocker_port, desc_info, prepare_priv);
|
|
if (err) {
|
|
spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
|
|
goto out;
|
|
}
|
|
rocker_desc_cookie_ptr_set(desc_info, wait);
|
|
rocker_desc_head_set(rocker, &rocker->cmd_ring, desc_info);
|
|
spin_unlock_irqrestore(&rocker->cmd_ring_lock, flags);
|
|
|
|
if (nowait)
|
|
return 0;
|
|
|
|
if (!rocker_wait_event_timeout(wait, HZ / 10))
|
|
return -EIO;
|
|
|
|
err = rocker_desc_err(desc_info);
|
|
if (err)
|
|
return err;
|
|
|
|
if (process)
|
|
err = process(rocker, rocker_port, desc_info, process_priv);
|
|
|
|
rocker_desc_gen_clear(desc_info);
|
|
out:
|
|
rocker_wait_destroy(wait);
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_get_port_settings_prep(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
struct rocker_tlv *cmd_info;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
|
|
ROCKER_TLV_CMD_TYPE_GET_PORT_SETTINGS))
|
|
return -EMSGSIZE;
|
|
cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
|
|
if (!cmd_info)
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
|
|
rocker_port->pport))
|
|
return -EMSGSIZE;
|
|
rocker_tlv_nest_end(desc_info, cmd_info);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_get_port_settings_ethtool_proc(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
struct ethtool_cmd *ecmd = priv;
|
|
struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
|
|
struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
|
|
u32 speed;
|
|
u8 duplex;
|
|
u8 autoneg;
|
|
|
|
rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
|
|
if (!attrs[ROCKER_TLV_CMD_INFO])
|
|
return -EIO;
|
|
|
|
rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
|
|
attrs[ROCKER_TLV_CMD_INFO]);
|
|
if (!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED] ||
|
|
!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX] ||
|
|
!info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG])
|
|
return -EIO;
|
|
|
|
speed = rocker_tlv_get_u32(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_SPEED]);
|
|
duplex = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX]);
|
|
autoneg = rocker_tlv_get_u8(info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG]);
|
|
|
|
ecmd->transceiver = XCVR_INTERNAL;
|
|
ecmd->supported = SUPPORTED_TP;
|
|
ecmd->phy_address = 0xff;
|
|
ecmd->port = PORT_TP;
|
|
ethtool_cmd_speed_set(ecmd, speed);
|
|
ecmd->duplex = duplex ? DUPLEX_FULL : DUPLEX_HALF;
|
|
ecmd->autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_get_port_settings_macaddr_proc(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
unsigned char *macaddr = priv;
|
|
struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
|
|
struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
|
|
struct rocker_tlv *attr;
|
|
|
|
rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
|
|
if (!attrs[ROCKER_TLV_CMD_INFO])
|
|
return -EIO;
|
|
|
|
rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
|
|
attrs[ROCKER_TLV_CMD_INFO]);
|
|
attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR];
|
|
if (!attr)
|
|
return -EIO;
|
|
|
|
if (rocker_tlv_len(attr) != ETH_ALEN)
|
|
return -EINVAL;
|
|
|
|
ether_addr_copy(macaddr, rocker_tlv_data(attr));
|
|
return 0;
|
|
}
|
|
|
|
struct port_name {
|
|
char *buf;
|
|
size_t len;
|
|
};
|
|
|
|
static int
|
|
rocker_cmd_get_port_settings_phys_name_proc(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
struct rocker_tlv *info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_MAX + 1];
|
|
struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
|
|
struct port_name *name = priv;
|
|
struct rocker_tlv *attr;
|
|
size_t i, j, len;
|
|
char *str;
|
|
|
|
rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
|
|
if (!attrs[ROCKER_TLV_CMD_INFO])
|
|
return -EIO;
|
|
|
|
rocker_tlv_parse_nested(info_attrs, ROCKER_TLV_CMD_PORT_SETTINGS_MAX,
|
|
attrs[ROCKER_TLV_CMD_INFO]);
|
|
attr = info_attrs[ROCKER_TLV_CMD_PORT_SETTINGS_PHYS_NAME];
|
|
if (!attr)
|
|
return -EIO;
|
|
|
|
len = min_t(size_t, rocker_tlv_len(attr), name->len);
|
|
str = rocker_tlv_data(attr);
|
|
|
|
/* make sure name only contains alphanumeric characters */
|
|
for (i = j = 0; i < len; ++i) {
|
|
if (isalnum(str[i])) {
|
|
name->buf[j] = str[i];
|
|
j++;
|
|
}
|
|
}
|
|
|
|
if (j == 0)
|
|
return -EIO;
|
|
|
|
name->buf[j] = '\0';
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_set_port_settings_ethtool_prep(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
struct ethtool_cmd *ecmd = priv;
|
|
struct rocker_tlv *cmd_info;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
|
|
ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
|
|
return -EMSGSIZE;
|
|
cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
|
|
if (!cmd_info)
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
|
|
rocker_port->pport))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_SPEED,
|
|
ethtool_cmd_speed(ecmd)))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_DUPLEX,
|
|
ecmd->duplex))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_AUTONEG,
|
|
ecmd->autoneg))
|
|
return -EMSGSIZE;
|
|
rocker_tlv_nest_end(desc_info, cmd_info);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_set_port_settings_macaddr_prep(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
unsigned char *macaddr = priv;
|
|
struct rocker_tlv *cmd_info;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
|
|
ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
|
|
return -EMSGSIZE;
|
|
cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
|
|
if (!cmd_info)
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
|
|
rocker_port->pport))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_MACADDR,
|
|
ETH_ALEN, macaddr))
|
|
return -EMSGSIZE;
|
|
rocker_tlv_nest_end(desc_info, cmd_info);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_set_port_learning_prep(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
struct rocker_tlv *cmd_info;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
|
|
ROCKER_TLV_CMD_TYPE_SET_PORT_SETTINGS))
|
|
return -EMSGSIZE;
|
|
cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
|
|
if (!cmd_info)
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_PPORT,
|
|
rocker_port->pport))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_CMD_PORT_SETTINGS_LEARNING,
|
|
!!(rocker_port->brport_flags & BR_LEARNING)))
|
|
return -EMSGSIZE;
|
|
rocker_tlv_nest_end(desc_info, cmd_info);
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_get_port_settings_ethtool(struct rocker_port *rocker_port,
|
|
struct ethtool_cmd *ecmd)
|
|
{
|
|
return rocker_cmd_exec(rocker_port->rocker, rocker_port,
|
|
rocker_cmd_get_port_settings_prep, NULL,
|
|
rocker_cmd_get_port_settings_ethtool_proc,
|
|
ecmd, false);
|
|
}
|
|
|
|
static int rocker_cmd_get_port_settings_macaddr(struct rocker_port *rocker_port,
|
|
unsigned char *macaddr)
|
|
{
|
|
return rocker_cmd_exec(rocker_port->rocker, rocker_port,
|
|
rocker_cmd_get_port_settings_prep, NULL,
|
|
rocker_cmd_get_port_settings_macaddr_proc,
|
|
macaddr, false);
|
|
}
|
|
|
|
static int rocker_cmd_set_port_settings_ethtool(struct rocker_port *rocker_port,
|
|
struct ethtool_cmd *ecmd)
|
|
{
|
|
return rocker_cmd_exec(rocker_port->rocker, rocker_port,
|
|
rocker_cmd_set_port_settings_ethtool_prep,
|
|
ecmd, NULL, NULL, false);
|
|
}
|
|
|
|
static int rocker_cmd_set_port_settings_macaddr(struct rocker_port *rocker_port,
|
|
unsigned char *macaddr)
|
|
{
|
|
return rocker_cmd_exec(rocker_port->rocker, rocker_port,
|
|
rocker_cmd_set_port_settings_macaddr_prep,
|
|
macaddr, NULL, NULL, false);
|
|
}
|
|
|
|
static int rocker_port_set_learning(struct rocker_port *rocker_port)
|
|
{
|
|
return rocker_cmd_exec(rocker_port->rocker, rocker_port,
|
|
rocker_cmd_set_port_learning_prep,
|
|
NULL, NULL, NULL, false);
|
|
}
|
|
|
|
static int rocker_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info,
|
|
struct rocker_flow_tbl_entry *entry)
|
|
{
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
|
|
entry->key.ig_port.in_pport))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
|
|
entry->key.ig_port.in_pport_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
|
|
entry->key.ig_port.goto_tbl))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info,
|
|
struct rocker_flow_tbl_entry *entry)
|
|
{
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
|
|
entry->key.vlan.in_pport))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
|
|
entry->key.vlan.vlan_id))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
|
|
entry->key.vlan.vlan_id_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
|
|
entry->key.vlan.goto_tbl))
|
|
return -EMSGSIZE;
|
|
if (entry->key.vlan.untagged &&
|
|
rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID,
|
|
entry->key.vlan.new_vlan_id))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info,
|
|
struct rocker_flow_tbl_entry *entry)
|
|
{
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
|
|
entry->key.term_mac.in_pport))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
|
|
entry->key.term_mac.in_pport_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
|
|
entry->key.term_mac.eth_type))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
|
|
ETH_ALEN, entry->key.term_mac.eth_dst))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
|
|
ETH_ALEN, entry->key.term_mac.eth_dst_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
|
|
entry->key.term_mac.vlan_id))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
|
|
entry->key.term_mac.vlan_id_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
|
|
entry->key.term_mac.goto_tbl))
|
|
return -EMSGSIZE;
|
|
if (entry->key.term_mac.copy_to_cpu &&
|
|
rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
|
|
entry->key.term_mac.copy_to_cpu))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info,
|
|
struct rocker_flow_tbl_entry *entry)
|
|
{
|
|
if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
|
|
entry->key.ucast_routing.eth_type))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP,
|
|
entry->key.ucast_routing.dst4))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK,
|
|
entry->key.ucast_routing.dst4_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
|
|
entry->key.ucast_routing.goto_tbl))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
|
|
entry->key.ucast_routing.group_id))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info,
|
|
struct rocker_flow_tbl_entry *entry)
|
|
{
|
|
if (entry->key.bridge.has_eth_dst &&
|
|
rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
|
|
ETH_ALEN, entry->key.bridge.eth_dst))
|
|
return -EMSGSIZE;
|
|
if (entry->key.bridge.has_eth_dst_mask &&
|
|
rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
|
|
ETH_ALEN, entry->key.bridge.eth_dst_mask))
|
|
return -EMSGSIZE;
|
|
if (entry->key.bridge.vlan_id &&
|
|
rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
|
|
entry->key.bridge.vlan_id))
|
|
return -EMSGSIZE;
|
|
if (entry->key.bridge.tunnel_id &&
|
|
rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID,
|
|
entry->key.bridge.tunnel_id))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID,
|
|
entry->key.bridge.goto_tbl))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
|
|
entry->key.bridge.group_id))
|
|
return -EMSGSIZE;
|
|
if (entry->key.bridge.copy_to_cpu &&
|
|
rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION,
|
|
entry->key.bridge.copy_to_cpu))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info,
|
|
struct rocker_flow_tbl_entry *entry)
|
|
{
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT,
|
|
entry->key.acl.in_pport))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK,
|
|
entry->key.acl.in_pport_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
|
|
ETH_ALEN, entry->key.acl.eth_src))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK,
|
|
ETH_ALEN, entry->key.acl.eth_src_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
|
|
ETH_ALEN, entry->key.acl.eth_dst))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK,
|
|
ETH_ALEN, entry->key.acl.eth_dst_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
|
|
entry->key.acl.eth_type))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
|
|
entry->key.acl.vlan_id))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK,
|
|
entry->key.acl.vlan_id_mask))
|
|
return -EMSGSIZE;
|
|
|
|
switch (ntohs(entry->key.acl.eth_type)) {
|
|
case ETH_P_IP:
|
|
case ETH_P_IPV6:
|
|
if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO,
|
|
entry->key.acl.ip_proto))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info,
|
|
ROCKER_TLV_OF_DPA_IP_PROTO_MASK,
|
|
entry->key.acl.ip_proto_mask))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP,
|
|
entry->key.acl.ip_tos & 0x3f))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info,
|
|
ROCKER_TLV_OF_DPA_IP_DSCP_MASK,
|
|
entry->key.acl.ip_tos_mask & 0x3f))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN,
|
|
(entry->key.acl.ip_tos & 0xc0) >> 6))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info,
|
|
ROCKER_TLV_OF_DPA_IP_ECN_MASK,
|
|
(entry->key.acl.ip_tos_mask & 0xc0) >> 6))
|
|
return -EMSGSIZE;
|
|
break;
|
|
}
|
|
|
|
if (entry->key.acl.group_id != ROCKER_GROUP_NONE &&
|
|
rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
|
|
entry->key.acl.group_id))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_flow_tbl_add(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
struct rocker_flow_tbl_entry *entry = priv;
|
|
struct rocker_tlv *cmd_info;
|
|
int err = 0;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
|
|
return -EMSGSIZE;
|
|
cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
|
|
if (!cmd_info)
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID,
|
|
entry->key.tbl_id))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY,
|
|
entry->key.priority))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
|
|
entry->cookie))
|
|
return -EMSGSIZE;
|
|
|
|
switch (entry->key.tbl_id) {
|
|
case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT:
|
|
err = rocker_cmd_flow_tbl_add_ig_port(desc_info, entry);
|
|
break;
|
|
case ROCKER_OF_DPA_TABLE_ID_VLAN:
|
|
err = rocker_cmd_flow_tbl_add_vlan(desc_info, entry);
|
|
break;
|
|
case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC:
|
|
err = rocker_cmd_flow_tbl_add_term_mac(desc_info, entry);
|
|
break;
|
|
case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING:
|
|
err = rocker_cmd_flow_tbl_add_ucast_routing(desc_info, entry);
|
|
break;
|
|
case ROCKER_OF_DPA_TABLE_ID_BRIDGING:
|
|
err = rocker_cmd_flow_tbl_add_bridge(desc_info, entry);
|
|
break;
|
|
case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY:
|
|
err = rocker_cmd_flow_tbl_add_acl(desc_info, entry);
|
|
break;
|
|
default:
|
|
err = -ENOTSUPP;
|
|
break;
|
|
}
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
rocker_tlv_nest_end(desc_info, cmd_info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_flow_tbl_del(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
const struct rocker_flow_tbl_entry *entry = priv;
|
|
struct rocker_tlv *cmd_info;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
|
|
return -EMSGSIZE;
|
|
cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
|
|
if (!cmd_info)
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE,
|
|
entry->cookie))
|
|
return -EMSGSIZE;
|
|
rocker_tlv_nest_end(desc_info, cmd_info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info,
|
|
struct rocker_group_tbl_entry *entry)
|
|
{
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT,
|
|
ROCKER_GROUP_PORT_GET(entry->group_id)))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN,
|
|
entry->l2_interface.pop_vlan))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info,
|
|
struct rocker_group_tbl_entry *entry)
|
|
{
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
|
|
entry->l2_rewrite.group_id))
|
|
return -EMSGSIZE;
|
|
if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) &&
|
|
rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
|
|
ETH_ALEN, entry->l2_rewrite.eth_src))
|
|
return -EMSGSIZE;
|
|
if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) &&
|
|
rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
|
|
ETH_ALEN, entry->l2_rewrite.eth_dst))
|
|
return -EMSGSIZE;
|
|
if (entry->l2_rewrite.vlan_id &&
|
|
rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
|
|
entry->l2_rewrite.vlan_id))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info,
|
|
struct rocker_group_tbl_entry *entry)
|
|
{
|
|
int i;
|
|
struct rocker_tlv *group_ids;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT,
|
|
entry->group_count))
|
|
return -EMSGSIZE;
|
|
|
|
group_ids = rocker_tlv_nest_start(desc_info,
|
|
ROCKER_TLV_OF_DPA_GROUP_IDS);
|
|
if (!group_ids)
|
|
return -EMSGSIZE;
|
|
|
|
for (i = 0; i < entry->group_count; i++)
|
|
/* Note TLV array is 1-based */
|
|
if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i]))
|
|
return -EMSGSIZE;
|
|
|
|
rocker_tlv_nest_end(desc_info, group_ids);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info,
|
|
struct rocker_group_tbl_entry *entry)
|
|
{
|
|
if (!is_zero_ether_addr(entry->l3_unicast.eth_src) &&
|
|
rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC,
|
|
ETH_ALEN, entry->l3_unicast.eth_src))
|
|
return -EMSGSIZE;
|
|
if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) &&
|
|
rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC,
|
|
ETH_ALEN, entry->l3_unicast.eth_dst))
|
|
return -EMSGSIZE;
|
|
if (entry->l3_unicast.vlan_id &&
|
|
rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
|
|
entry->l3_unicast.vlan_id))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK,
|
|
entry->l3_unicast.ttl_check))
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER,
|
|
entry->l3_unicast.group_id))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_group_tbl_add(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
struct rocker_group_tbl_entry *entry = priv;
|
|
struct rocker_tlv *cmd_info;
|
|
int err = 0;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
|
|
return -EMSGSIZE;
|
|
cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
|
|
if (!cmd_info)
|
|
return -EMSGSIZE;
|
|
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
|
|
entry->group_id))
|
|
return -EMSGSIZE;
|
|
|
|
switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
|
|
case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE:
|
|
err = rocker_cmd_group_tbl_add_l2_interface(desc_info, entry);
|
|
break;
|
|
case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE:
|
|
err = rocker_cmd_group_tbl_add_l2_rewrite(desc_info, entry);
|
|
break;
|
|
case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
|
|
case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
|
|
err = rocker_cmd_group_tbl_add_group_ids(desc_info, entry);
|
|
break;
|
|
case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST:
|
|
err = rocker_cmd_group_tbl_add_l3_unicast(desc_info, entry);
|
|
break;
|
|
default:
|
|
err = -ENOTSUPP;
|
|
break;
|
|
}
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
rocker_tlv_nest_end(desc_info, cmd_info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_group_tbl_del(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
const struct rocker_group_tbl_entry *entry = priv;
|
|
struct rocker_tlv *cmd_info;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd))
|
|
return -EMSGSIZE;
|
|
cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
|
|
if (!cmd_info)
|
|
return -EMSGSIZE;
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID,
|
|
entry->group_id))
|
|
return -EMSGSIZE;
|
|
rocker_tlv_nest_end(desc_info, cmd_info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/***************************************************
|
|
* Flow, group, FDB, internal VLAN and neigh tables
|
|
***************************************************/
|
|
|
|
static int rocker_init_tbls(struct rocker *rocker)
|
|
{
|
|
hash_init(rocker->flow_tbl);
|
|
spin_lock_init(&rocker->flow_tbl_lock);
|
|
|
|
hash_init(rocker->group_tbl);
|
|
spin_lock_init(&rocker->group_tbl_lock);
|
|
|
|
hash_init(rocker->fdb_tbl);
|
|
spin_lock_init(&rocker->fdb_tbl_lock);
|
|
|
|
hash_init(rocker->internal_vlan_tbl);
|
|
spin_lock_init(&rocker->internal_vlan_tbl_lock);
|
|
|
|
hash_init(rocker->neigh_tbl);
|
|
spin_lock_init(&rocker->neigh_tbl_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rocker_free_tbls(struct rocker *rocker)
|
|
{
|
|
unsigned long flags;
|
|
struct rocker_flow_tbl_entry *flow_entry;
|
|
struct rocker_group_tbl_entry *group_entry;
|
|
struct rocker_fdb_tbl_entry *fdb_entry;
|
|
struct rocker_internal_vlan_tbl_entry *internal_vlan_entry;
|
|
struct rocker_neigh_tbl_entry *neigh_entry;
|
|
struct hlist_node *tmp;
|
|
int bkt;
|
|
|
|
spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
|
|
hash_for_each_safe(rocker->flow_tbl, bkt, tmp, flow_entry, entry)
|
|
hash_del(&flow_entry->entry);
|
|
spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
|
|
|
|
spin_lock_irqsave(&rocker->group_tbl_lock, flags);
|
|
hash_for_each_safe(rocker->group_tbl, bkt, tmp, group_entry, entry)
|
|
hash_del(&group_entry->entry);
|
|
spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
|
|
|
|
spin_lock_irqsave(&rocker->fdb_tbl_lock, flags);
|
|
hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, fdb_entry, entry)
|
|
hash_del(&fdb_entry->entry);
|
|
spin_unlock_irqrestore(&rocker->fdb_tbl_lock, flags);
|
|
|
|
spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, flags);
|
|
hash_for_each_safe(rocker->internal_vlan_tbl, bkt,
|
|
tmp, internal_vlan_entry, entry)
|
|
hash_del(&internal_vlan_entry->entry);
|
|
spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, flags);
|
|
|
|
spin_lock_irqsave(&rocker->neigh_tbl_lock, flags);
|
|
hash_for_each_safe(rocker->neigh_tbl, bkt, tmp, neigh_entry, entry)
|
|
hash_del(&neigh_entry->entry);
|
|
spin_unlock_irqrestore(&rocker->neigh_tbl_lock, flags);
|
|
}
|
|
|
|
static struct rocker_flow_tbl_entry *
|
|
rocker_flow_tbl_find(struct rocker *rocker, struct rocker_flow_tbl_entry *match)
|
|
{
|
|
struct rocker_flow_tbl_entry *found;
|
|
size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
|
|
|
|
hash_for_each_possible(rocker->flow_tbl, found,
|
|
entry, match->key_crc32) {
|
|
if (memcmp(&found->key, &match->key, key_len) == 0)
|
|
return found;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int rocker_flow_tbl_add(struct rocker_port *rocker_port,
|
|
struct rocker_flow_tbl_entry *match,
|
|
bool nowait)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_flow_tbl_entry *found;
|
|
size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
|
|
unsigned long flags;
|
|
|
|
match->key_crc32 = crc32(~0, &match->key, key_len);
|
|
|
|
spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
|
|
|
|
found = rocker_flow_tbl_find(rocker, match);
|
|
|
|
if (found) {
|
|
match->cookie = found->cookie;
|
|
hash_del(&found->entry);
|
|
kfree(found);
|
|
found = match;
|
|
found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD;
|
|
} else {
|
|
found = match;
|
|
found->cookie = rocker->flow_tbl_next_cookie++;
|
|
found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD;
|
|
}
|
|
|
|
hash_add(rocker->flow_tbl, &found->entry, found->key_crc32);
|
|
|
|
spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
|
|
|
|
return rocker_cmd_exec(rocker, rocker_port,
|
|
rocker_cmd_flow_tbl_add,
|
|
found, NULL, NULL, nowait);
|
|
}
|
|
|
|
static int rocker_flow_tbl_del(struct rocker_port *rocker_port,
|
|
struct rocker_flow_tbl_entry *match,
|
|
bool nowait)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_flow_tbl_entry *found;
|
|
size_t key_len = match->key_len ? match->key_len : sizeof(found->key);
|
|
unsigned long flags;
|
|
int err = 0;
|
|
|
|
match->key_crc32 = crc32(~0, &match->key, key_len);
|
|
|
|
spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
|
|
|
|
found = rocker_flow_tbl_find(rocker, match);
|
|
|
|
if (found) {
|
|
hash_del(&found->entry);
|
|
found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
|
|
|
|
kfree(match);
|
|
|
|
if (found) {
|
|
err = rocker_cmd_exec(rocker, rocker_port,
|
|
rocker_cmd_flow_tbl_del,
|
|
found, NULL, NULL, nowait);
|
|
kfree(found);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static gfp_t rocker_op_flags_gfp(int flags)
|
|
{
|
|
return flags & ROCKER_OP_FLAG_NOWAIT ? GFP_ATOMIC : GFP_KERNEL;
|
|
}
|
|
|
|
static int rocker_flow_tbl_do(struct rocker_port *rocker_port,
|
|
int flags, struct rocker_flow_tbl_entry *entry)
|
|
{
|
|
bool nowait = flags & ROCKER_OP_FLAG_NOWAIT;
|
|
|
|
if (flags & ROCKER_OP_FLAG_REMOVE)
|
|
return rocker_flow_tbl_del(rocker_port, entry, nowait);
|
|
else
|
|
return rocker_flow_tbl_add(rocker_port, entry, nowait);
|
|
}
|
|
|
|
static int rocker_flow_tbl_ig_port(struct rocker_port *rocker_port,
|
|
int flags, u32 in_pport, u32 in_pport_mask,
|
|
enum rocker_of_dpa_table_id goto_tbl)
|
|
{
|
|
struct rocker_flow_tbl_entry *entry;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
entry->key.priority = ROCKER_PRIORITY_IG_PORT;
|
|
entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT;
|
|
entry->key.ig_port.in_pport = in_pport;
|
|
entry->key.ig_port.in_pport_mask = in_pport_mask;
|
|
entry->key.ig_port.goto_tbl = goto_tbl;
|
|
|
|
return rocker_flow_tbl_do(rocker_port, flags, entry);
|
|
}
|
|
|
|
static int rocker_flow_tbl_vlan(struct rocker_port *rocker_port,
|
|
int flags, u32 in_pport,
|
|
__be16 vlan_id, __be16 vlan_id_mask,
|
|
enum rocker_of_dpa_table_id goto_tbl,
|
|
bool untagged, __be16 new_vlan_id)
|
|
{
|
|
struct rocker_flow_tbl_entry *entry;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
entry->key.priority = ROCKER_PRIORITY_VLAN;
|
|
entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN;
|
|
entry->key.vlan.in_pport = in_pport;
|
|
entry->key.vlan.vlan_id = vlan_id;
|
|
entry->key.vlan.vlan_id_mask = vlan_id_mask;
|
|
entry->key.vlan.goto_tbl = goto_tbl;
|
|
|
|
entry->key.vlan.untagged = untagged;
|
|
entry->key.vlan.new_vlan_id = new_vlan_id;
|
|
|
|
return rocker_flow_tbl_do(rocker_port, flags, entry);
|
|
}
|
|
|
|
static int rocker_flow_tbl_term_mac(struct rocker_port *rocker_port,
|
|
u32 in_pport, u32 in_pport_mask,
|
|
__be16 eth_type, const u8 *eth_dst,
|
|
const u8 *eth_dst_mask, __be16 vlan_id,
|
|
__be16 vlan_id_mask, bool copy_to_cpu,
|
|
int flags)
|
|
{
|
|
struct rocker_flow_tbl_entry *entry;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
if (is_multicast_ether_addr(eth_dst)) {
|
|
entry->key.priority = ROCKER_PRIORITY_TERM_MAC_MCAST;
|
|
entry->key.term_mac.goto_tbl =
|
|
ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING;
|
|
} else {
|
|
entry->key.priority = ROCKER_PRIORITY_TERM_MAC_UCAST;
|
|
entry->key.term_mac.goto_tbl =
|
|
ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
|
|
}
|
|
|
|
entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
|
|
entry->key.term_mac.in_pport = in_pport;
|
|
entry->key.term_mac.in_pport_mask = in_pport_mask;
|
|
entry->key.term_mac.eth_type = eth_type;
|
|
ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst);
|
|
ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask);
|
|
entry->key.term_mac.vlan_id = vlan_id;
|
|
entry->key.term_mac.vlan_id_mask = vlan_id_mask;
|
|
entry->key.term_mac.copy_to_cpu = copy_to_cpu;
|
|
|
|
return rocker_flow_tbl_do(rocker_port, flags, entry);
|
|
}
|
|
|
|
static int rocker_flow_tbl_bridge(struct rocker_port *rocker_port,
|
|
int flags,
|
|
const u8 *eth_dst, const u8 *eth_dst_mask,
|
|
__be16 vlan_id, u32 tunnel_id,
|
|
enum rocker_of_dpa_table_id goto_tbl,
|
|
u32 group_id, bool copy_to_cpu)
|
|
{
|
|
struct rocker_flow_tbl_entry *entry;
|
|
u32 priority;
|
|
bool vlan_bridging = !!vlan_id;
|
|
bool dflt = !eth_dst || (eth_dst && eth_dst_mask);
|
|
bool wild = false;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING;
|
|
|
|
if (eth_dst) {
|
|
entry->key.bridge.has_eth_dst = 1;
|
|
ether_addr_copy(entry->key.bridge.eth_dst, eth_dst);
|
|
}
|
|
if (eth_dst_mask) {
|
|
entry->key.bridge.has_eth_dst_mask = 1;
|
|
ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask);
|
|
if (memcmp(eth_dst_mask, ff_mac, ETH_ALEN))
|
|
wild = true;
|
|
}
|
|
|
|
priority = ROCKER_PRIORITY_UNKNOWN;
|
|
if (vlan_bridging && dflt && wild)
|
|
priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD;
|
|
else if (vlan_bridging && dflt && !wild)
|
|
priority = ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT;
|
|
else if (vlan_bridging && !dflt)
|
|
priority = ROCKER_PRIORITY_BRIDGING_VLAN;
|
|
else if (!vlan_bridging && dflt && wild)
|
|
priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD;
|
|
else if (!vlan_bridging && dflt && !wild)
|
|
priority = ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT;
|
|
else if (!vlan_bridging && !dflt)
|
|
priority = ROCKER_PRIORITY_BRIDGING_TENANT;
|
|
|
|
entry->key.priority = priority;
|
|
entry->key.bridge.vlan_id = vlan_id;
|
|
entry->key.bridge.tunnel_id = tunnel_id;
|
|
entry->key.bridge.goto_tbl = goto_tbl;
|
|
entry->key.bridge.group_id = group_id;
|
|
entry->key.bridge.copy_to_cpu = copy_to_cpu;
|
|
|
|
return rocker_flow_tbl_do(rocker_port, flags, entry);
|
|
}
|
|
|
|
static int rocker_flow_tbl_ucast4_routing(struct rocker_port *rocker_port,
|
|
__be16 eth_type, __be32 dst,
|
|
__be32 dst_mask, u32 priority,
|
|
enum rocker_of_dpa_table_id goto_tbl,
|
|
u32 group_id, int flags)
|
|
{
|
|
struct rocker_flow_tbl_entry *entry;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING;
|
|
entry->key.priority = priority;
|
|
entry->key.ucast_routing.eth_type = eth_type;
|
|
entry->key.ucast_routing.dst4 = dst;
|
|
entry->key.ucast_routing.dst4_mask = dst_mask;
|
|
entry->key.ucast_routing.goto_tbl = goto_tbl;
|
|
entry->key.ucast_routing.group_id = group_id;
|
|
entry->key_len = offsetof(struct rocker_flow_tbl_key,
|
|
ucast_routing.group_id);
|
|
|
|
return rocker_flow_tbl_do(rocker_port, flags, entry);
|
|
}
|
|
|
|
static int rocker_flow_tbl_acl(struct rocker_port *rocker_port,
|
|
int flags, u32 in_pport,
|
|
u32 in_pport_mask,
|
|
const u8 *eth_src, const u8 *eth_src_mask,
|
|
const u8 *eth_dst, const u8 *eth_dst_mask,
|
|
__be16 eth_type,
|
|
__be16 vlan_id, __be16 vlan_id_mask,
|
|
u8 ip_proto, u8 ip_proto_mask,
|
|
u8 ip_tos, u8 ip_tos_mask,
|
|
u32 group_id)
|
|
{
|
|
u32 priority;
|
|
struct rocker_flow_tbl_entry *entry;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
priority = ROCKER_PRIORITY_ACL_NORMAL;
|
|
if (eth_dst && eth_dst_mask) {
|
|
if (memcmp(eth_dst_mask, mcast_mac, ETH_ALEN) == 0)
|
|
priority = ROCKER_PRIORITY_ACL_DFLT;
|
|
else if (is_link_local_ether_addr(eth_dst))
|
|
priority = ROCKER_PRIORITY_ACL_CTRL;
|
|
}
|
|
|
|
entry->key.priority = priority;
|
|
entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
|
|
entry->key.acl.in_pport = in_pport;
|
|
entry->key.acl.in_pport_mask = in_pport_mask;
|
|
|
|
if (eth_src)
|
|
ether_addr_copy(entry->key.acl.eth_src, eth_src);
|
|
if (eth_src_mask)
|
|
ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask);
|
|
if (eth_dst)
|
|
ether_addr_copy(entry->key.acl.eth_dst, eth_dst);
|
|
if (eth_dst_mask)
|
|
ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask);
|
|
|
|
entry->key.acl.eth_type = eth_type;
|
|
entry->key.acl.vlan_id = vlan_id;
|
|
entry->key.acl.vlan_id_mask = vlan_id_mask;
|
|
entry->key.acl.ip_proto = ip_proto;
|
|
entry->key.acl.ip_proto_mask = ip_proto_mask;
|
|
entry->key.acl.ip_tos = ip_tos;
|
|
entry->key.acl.ip_tos_mask = ip_tos_mask;
|
|
entry->key.acl.group_id = group_id;
|
|
|
|
return rocker_flow_tbl_do(rocker_port, flags, entry);
|
|
}
|
|
|
|
static struct rocker_group_tbl_entry *
|
|
rocker_group_tbl_find(struct rocker *rocker,
|
|
struct rocker_group_tbl_entry *match)
|
|
{
|
|
struct rocker_group_tbl_entry *found;
|
|
|
|
hash_for_each_possible(rocker->group_tbl, found,
|
|
entry, match->group_id) {
|
|
if (found->group_id == match->group_id)
|
|
return found;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void rocker_group_tbl_entry_free(struct rocker_group_tbl_entry *entry)
|
|
{
|
|
switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) {
|
|
case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD:
|
|
case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST:
|
|
kfree(entry->group_ids);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
kfree(entry);
|
|
}
|
|
|
|
static int rocker_group_tbl_add(struct rocker_port *rocker_port,
|
|
struct rocker_group_tbl_entry *match,
|
|
bool nowait)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_group_tbl_entry *found;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&rocker->group_tbl_lock, flags);
|
|
|
|
found = rocker_group_tbl_find(rocker, match);
|
|
|
|
if (found) {
|
|
hash_del(&found->entry);
|
|
rocker_group_tbl_entry_free(found);
|
|
found = match;
|
|
found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD;
|
|
} else {
|
|
found = match;
|
|
found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD;
|
|
}
|
|
|
|
hash_add(rocker->group_tbl, &found->entry, found->group_id);
|
|
|
|
spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
|
|
|
|
return rocker_cmd_exec(rocker, rocker_port,
|
|
rocker_cmd_group_tbl_add,
|
|
found, NULL, NULL, nowait);
|
|
}
|
|
|
|
static int rocker_group_tbl_del(struct rocker_port *rocker_port,
|
|
struct rocker_group_tbl_entry *match,
|
|
bool nowait)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_group_tbl_entry *found;
|
|
unsigned long flags;
|
|
int err = 0;
|
|
|
|
spin_lock_irqsave(&rocker->group_tbl_lock, flags);
|
|
|
|
found = rocker_group_tbl_find(rocker, match);
|
|
|
|
if (found) {
|
|
hash_del(&found->entry);
|
|
found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&rocker->group_tbl_lock, flags);
|
|
|
|
rocker_group_tbl_entry_free(match);
|
|
|
|
if (found) {
|
|
err = rocker_cmd_exec(rocker, rocker_port,
|
|
rocker_cmd_group_tbl_del,
|
|
found, NULL, NULL, nowait);
|
|
rocker_group_tbl_entry_free(found);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_group_tbl_do(struct rocker_port *rocker_port,
|
|
int flags, struct rocker_group_tbl_entry *entry)
|
|
{
|
|
bool nowait = flags & ROCKER_OP_FLAG_NOWAIT;
|
|
|
|
if (flags & ROCKER_OP_FLAG_REMOVE)
|
|
return rocker_group_tbl_del(rocker_port, entry, nowait);
|
|
else
|
|
return rocker_group_tbl_add(rocker_port, entry, nowait);
|
|
}
|
|
|
|
static int rocker_group_l2_interface(struct rocker_port *rocker_port,
|
|
int flags, __be16 vlan_id,
|
|
u32 out_pport, int pop_vlan)
|
|
{
|
|
struct rocker_group_tbl_entry *entry;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
|
|
entry->l2_interface.pop_vlan = pop_vlan;
|
|
|
|
return rocker_group_tbl_do(rocker_port, flags, entry);
|
|
}
|
|
|
|
static int rocker_group_l2_fan_out(struct rocker_port *rocker_port,
|
|
int flags, u8 group_count,
|
|
u32 *group_ids, u32 group_id)
|
|
{
|
|
struct rocker_group_tbl_entry *entry;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
entry->group_id = group_id;
|
|
entry->group_count = group_count;
|
|
|
|
entry->group_ids = kcalloc(group_count, sizeof(u32),
|
|
rocker_op_flags_gfp(flags));
|
|
if (!entry->group_ids) {
|
|
kfree(entry);
|
|
return -ENOMEM;
|
|
}
|
|
memcpy(entry->group_ids, group_ids, group_count * sizeof(u32));
|
|
|
|
return rocker_group_tbl_do(rocker_port, flags, entry);
|
|
}
|
|
|
|
static int rocker_group_l2_flood(struct rocker_port *rocker_port,
|
|
int flags, __be16 vlan_id,
|
|
u8 group_count, u32 *group_ids,
|
|
u32 group_id)
|
|
{
|
|
return rocker_group_l2_fan_out(rocker_port, flags,
|
|
group_count, group_ids,
|
|
group_id);
|
|
}
|
|
|
|
static int rocker_group_l3_unicast(struct rocker_port *rocker_port,
|
|
int flags, u32 index, u8 *src_mac,
|
|
u8 *dst_mac, __be16 vlan_id,
|
|
bool ttl_check, u32 pport)
|
|
{
|
|
struct rocker_group_tbl_entry *entry;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
entry->group_id = ROCKER_GROUP_L3_UNICAST(index);
|
|
if (src_mac)
|
|
ether_addr_copy(entry->l3_unicast.eth_src, src_mac);
|
|
if (dst_mac)
|
|
ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac);
|
|
entry->l3_unicast.vlan_id = vlan_id;
|
|
entry->l3_unicast.ttl_check = ttl_check;
|
|
entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport);
|
|
|
|
return rocker_group_tbl_do(rocker_port, flags, entry);
|
|
}
|
|
|
|
static struct rocker_neigh_tbl_entry *
|
|
rocker_neigh_tbl_find(struct rocker *rocker, __be32 ip_addr)
|
|
{
|
|
struct rocker_neigh_tbl_entry *found;
|
|
|
|
hash_for_each_possible(rocker->neigh_tbl, found,
|
|
entry, be32_to_cpu(ip_addr))
|
|
if (found->ip_addr == ip_addr)
|
|
return found;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void _rocker_neigh_add(struct rocker *rocker,
|
|
struct rocker_neigh_tbl_entry *entry)
|
|
{
|
|
entry->index = rocker->neigh_tbl_next_index++;
|
|
entry->ref_count++;
|
|
hash_add(rocker->neigh_tbl, &entry->entry,
|
|
be32_to_cpu(entry->ip_addr));
|
|
}
|
|
|
|
static void _rocker_neigh_del(struct rocker *rocker,
|
|
struct rocker_neigh_tbl_entry *entry)
|
|
{
|
|
if (--entry->ref_count == 0) {
|
|
hash_del(&entry->entry);
|
|
kfree(entry);
|
|
}
|
|
}
|
|
|
|
static void _rocker_neigh_update(struct rocker *rocker,
|
|
struct rocker_neigh_tbl_entry *entry,
|
|
u8 *eth_dst, bool ttl_check)
|
|
{
|
|
if (eth_dst) {
|
|
ether_addr_copy(entry->eth_dst, eth_dst);
|
|
entry->ttl_check = ttl_check;
|
|
} else {
|
|
entry->ref_count++;
|
|
}
|
|
}
|
|
|
|
static int rocker_port_ipv4_neigh(struct rocker_port *rocker_port,
|
|
int flags, __be32 ip_addr, u8 *eth_dst)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_neigh_tbl_entry *entry;
|
|
struct rocker_neigh_tbl_entry *found;
|
|
unsigned long lock_flags;
|
|
__be16 eth_type = htons(ETH_P_IP);
|
|
enum rocker_of_dpa_table_id goto_tbl =
|
|
ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
|
|
u32 group_id;
|
|
u32 priority = 0;
|
|
bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
|
|
bool updating;
|
|
bool removing;
|
|
int err = 0;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
|
|
|
|
found = rocker_neigh_tbl_find(rocker, ip_addr);
|
|
|
|
updating = found && adding;
|
|
removing = found && !adding;
|
|
adding = !found && adding;
|
|
|
|
if (adding) {
|
|
entry->ip_addr = ip_addr;
|
|
entry->dev = rocker_port->dev;
|
|
ether_addr_copy(entry->eth_dst, eth_dst);
|
|
entry->ttl_check = true;
|
|
_rocker_neigh_add(rocker, entry);
|
|
} else if (removing) {
|
|
memcpy(entry, found, sizeof(*entry));
|
|
_rocker_neigh_del(rocker, found);
|
|
} else if (updating) {
|
|
_rocker_neigh_update(rocker, found, eth_dst, true);
|
|
memcpy(entry, found, sizeof(*entry));
|
|
} else {
|
|
err = -ENOENT;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
|
|
|
|
if (err)
|
|
goto err_out;
|
|
|
|
/* For each active neighbor, we have an L3 unicast group and
|
|
* a /32 route to the neighbor, which uses the L3 unicast
|
|
* group. The L3 unicast group can also be referred to by
|
|
* other routes' nexthops.
|
|
*/
|
|
|
|
err = rocker_group_l3_unicast(rocker_port, flags,
|
|
entry->index,
|
|
rocker_port->dev->dev_addr,
|
|
entry->eth_dst,
|
|
rocker_port->internal_vlan_id,
|
|
entry->ttl_check,
|
|
rocker_port->pport);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) L3 unicast group index %d\n",
|
|
err, entry->index);
|
|
goto err_out;
|
|
}
|
|
|
|
if (adding || removing) {
|
|
group_id = ROCKER_GROUP_L3_UNICAST(entry->index);
|
|
err = rocker_flow_tbl_ucast4_routing(rocker_port,
|
|
eth_type, ip_addr,
|
|
inet_make_mask(32),
|
|
priority, goto_tbl,
|
|
group_id, flags);
|
|
|
|
if (err)
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) /32 unicast route %pI4 group 0x%08x\n",
|
|
err, &entry->ip_addr, group_id);
|
|
}
|
|
|
|
err_out:
|
|
if (!adding)
|
|
kfree(entry);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port,
|
|
__be32 ip_addr)
|
|
{
|
|
struct net_device *dev = rocker_port->dev;
|
|
struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr);
|
|
int err = 0;
|
|
|
|
if (!n)
|
|
n = neigh_create(&arp_tbl, &ip_addr, dev);
|
|
if (!n)
|
|
return -ENOMEM;
|
|
|
|
/* If the neigh is already resolved, then go ahead and
|
|
* install the entry, otherwise start the ARP process to
|
|
* resolve the neigh.
|
|
*/
|
|
|
|
if (n->nud_state & NUD_VALID)
|
|
err = rocker_port_ipv4_neigh(rocker_port, 0, ip_addr, n->ha);
|
|
else
|
|
neigh_event_send(n, NULL);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_ipv4_nh(struct rocker_port *rocker_port, int flags,
|
|
__be32 ip_addr, u32 *index)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_neigh_tbl_entry *entry;
|
|
struct rocker_neigh_tbl_entry *found;
|
|
unsigned long lock_flags;
|
|
bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
|
|
bool updating;
|
|
bool removing;
|
|
bool resolved = true;
|
|
int err = 0;
|
|
|
|
entry = kzalloc(sizeof(*entry), rocker_op_flags_gfp(flags));
|
|
if (!entry)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_irqsave(&rocker->neigh_tbl_lock, lock_flags);
|
|
|
|
found = rocker_neigh_tbl_find(rocker, ip_addr);
|
|
if (found)
|
|
*index = found->index;
|
|
|
|
updating = found && adding;
|
|
removing = found && !adding;
|
|
adding = !found && adding;
|
|
|
|
if (adding) {
|
|
entry->ip_addr = ip_addr;
|
|
entry->dev = rocker_port->dev;
|
|
_rocker_neigh_add(rocker, entry);
|
|
*index = entry->index;
|
|
resolved = false;
|
|
} else if (removing) {
|
|
_rocker_neigh_del(rocker, found);
|
|
} else if (updating) {
|
|
_rocker_neigh_update(rocker, found, NULL, false);
|
|
resolved = !is_zero_ether_addr(found->eth_dst);
|
|
} else {
|
|
err = -ENOENT;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&rocker->neigh_tbl_lock, lock_flags);
|
|
|
|
if (!adding)
|
|
kfree(entry);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
/* Resolved means neigh ip_addr is resolved to neigh mac. */
|
|
|
|
if (!resolved)
|
|
err = rocker_port_ipv4_resolve(rocker_port, ip_addr);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_vlan_flood_group(struct rocker_port *rocker_port,
|
|
int flags, __be16 vlan_id)
|
|
{
|
|
struct rocker_port *p;
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
|
|
u32 *group_ids;
|
|
u8 group_count = 0;
|
|
int err = 0;
|
|
int i;
|
|
|
|
group_ids = kcalloc(rocker->port_count, sizeof(u32),
|
|
rocker_op_flags_gfp(flags));
|
|
if (!group_ids)
|
|
return -ENOMEM;
|
|
|
|
/* Adjust the flood group for this VLAN. The flood group
|
|
* references an L2 interface group for each port in this
|
|
* VLAN.
|
|
*/
|
|
|
|
for (i = 0; i < rocker->port_count; i++) {
|
|
p = rocker->ports[i];
|
|
if (!rocker_port_is_bridged(p))
|
|
continue;
|
|
if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) {
|
|
group_ids[group_count++] =
|
|
ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport);
|
|
}
|
|
}
|
|
|
|
/* If there are no bridged ports in this VLAN, we're done */
|
|
if (group_count == 0)
|
|
goto no_ports_in_vlan;
|
|
|
|
err = rocker_group_l2_flood(rocker_port, flags, vlan_id,
|
|
group_count, group_ids,
|
|
group_id);
|
|
if (err)
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) port VLAN l2 flood group\n", err);
|
|
|
|
no_ports_in_vlan:
|
|
kfree(group_ids);
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_vlan_l2_groups(struct rocker_port *rocker_port,
|
|
int flags, __be16 vlan_id,
|
|
bool pop_vlan)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_port *p;
|
|
bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
|
|
u32 out_pport;
|
|
int ref = 0;
|
|
int err;
|
|
int i;
|
|
|
|
/* An L2 interface group for this port in this VLAN, but
|
|
* only when port STP state is LEARNING|FORWARDING.
|
|
*/
|
|
|
|
if (rocker_port->stp_state == BR_STATE_LEARNING ||
|
|
rocker_port->stp_state == BR_STATE_FORWARDING) {
|
|
out_pport = rocker_port->pport;
|
|
err = rocker_group_l2_interface(rocker_port, flags,
|
|
vlan_id, out_pport,
|
|
pop_vlan);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) port VLAN l2 group for pport %d\n",
|
|
err, out_pport);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
/* An L2 interface group for this VLAN to CPU port.
|
|
* Add when first port joins this VLAN and destroy when
|
|
* last port leaves this VLAN.
|
|
*/
|
|
|
|
for (i = 0; i < rocker->port_count; i++) {
|
|
p = rocker->ports[i];
|
|
if (test_bit(ntohs(vlan_id), p->vlan_bitmap))
|
|
ref++;
|
|
}
|
|
|
|
if ((!adding || ref != 1) && (adding || ref != 0))
|
|
return 0;
|
|
|
|
out_pport = 0;
|
|
err = rocker_group_l2_interface(rocker_port, flags,
|
|
vlan_id, out_pport,
|
|
pop_vlan);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) port VLAN l2 group for CPU port\n", err);
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct rocker_ctrl {
|
|
const u8 *eth_dst;
|
|
const u8 *eth_dst_mask;
|
|
__be16 eth_type;
|
|
bool acl;
|
|
bool bridge;
|
|
bool term;
|
|
bool copy_to_cpu;
|
|
} rocker_ctrls[] = {
|
|
[ROCKER_CTRL_LINK_LOCAL_MCAST] = {
|
|
/* pass link local multicast pkts up to CPU for filtering */
|
|
.eth_dst = ll_mac,
|
|
.eth_dst_mask = ll_mask,
|
|
.acl = true,
|
|
},
|
|
[ROCKER_CTRL_LOCAL_ARP] = {
|
|
/* pass local ARP pkts up to CPU */
|
|
.eth_dst = zero_mac,
|
|
.eth_dst_mask = zero_mac,
|
|
.eth_type = htons(ETH_P_ARP),
|
|
.acl = true,
|
|
},
|
|
[ROCKER_CTRL_IPV4_MCAST] = {
|
|
/* pass IPv4 mcast pkts up to CPU, RFC 1112 */
|
|
.eth_dst = ipv4_mcast,
|
|
.eth_dst_mask = ipv4_mask,
|
|
.eth_type = htons(ETH_P_IP),
|
|
.term = true,
|
|
.copy_to_cpu = true,
|
|
},
|
|
[ROCKER_CTRL_IPV6_MCAST] = {
|
|
/* pass IPv6 mcast pkts up to CPU, RFC 2464 */
|
|
.eth_dst = ipv6_mcast,
|
|
.eth_dst_mask = ipv6_mask,
|
|
.eth_type = htons(ETH_P_IPV6),
|
|
.term = true,
|
|
.copy_to_cpu = true,
|
|
},
|
|
[ROCKER_CTRL_DFLT_BRIDGING] = {
|
|
/* flood any pkts on vlan */
|
|
.bridge = true,
|
|
.copy_to_cpu = true,
|
|
},
|
|
};
|
|
|
|
static int rocker_port_ctrl_vlan_acl(struct rocker_port *rocker_port,
|
|
int flags, struct rocker_ctrl *ctrl,
|
|
__be16 vlan_id)
|
|
{
|
|
u32 in_pport = rocker_port->pport;
|
|
u32 in_pport_mask = 0xffffffff;
|
|
u32 out_pport = 0;
|
|
u8 *eth_src = NULL;
|
|
u8 *eth_src_mask = NULL;
|
|
__be16 vlan_id_mask = htons(0xffff);
|
|
u8 ip_proto = 0;
|
|
u8 ip_proto_mask = 0;
|
|
u8 ip_tos = 0;
|
|
u8 ip_tos_mask = 0;
|
|
u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
|
|
int err;
|
|
|
|
err = rocker_flow_tbl_acl(rocker_port, flags,
|
|
in_pport, in_pport_mask,
|
|
eth_src, eth_src_mask,
|
|
ctrl->eth_dst, ctrl->eth_dst_mask,
|
|
ctrl->eth_type,
|
|
vlan_id, vlan_id_mask,
|
|
ip_proto, ip_proto_mask,
|
|
ip_tos, ip_tos_mask,
|
|
group_id);
|
|
|
|
if (err)
|
|
netdev_err(rocker_port->dev, "Error (%d) ctrl ACL\n", err);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_ctrl_vlan_bridge(struct rocker_port *rocker_port,
|
|
int flags, struct rocker_ctrl *ctrl,
|
|
__be16 vlan_id)
|
|
{
|
|
enum rocker_of_dpa_table_id goto_tbl =
|
|
ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
|
|
u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0);
|
|
u32 tunnel_id = 0;
|
|
int err;
|
|
|
|
if (!rocker_port_is_bridged(rocker_port))
|
|
return 0;
|
|
|
|
err = rocker_flow_tbl_bridge(rocker_port, flags,
|
|
ctrl->eth_dst, ctrl->eth_dst_mask,
|
|
vlan_id, tunnel_id,
|
|
goto_tbl, group_id, ctrl->copy_to_cpu);
|
|
|
|
if (err)
|
|
netdev_err(rocker_port->dev, "Error (%d) ctrl FLOOD\n", err);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_ctrl_vlan_term(struct rocker_port *rocker_port,
|
|
int flags, struct rocker_ctrl *ctrl,
|
|
__be16 vlan_id)
|
|
{
|
|
u32 in_pport_mask = 0xffffffff;
|
|
__be16 vlan_id_mask = htons(0xffff);
|
|
int err;
|
|
|
|
if (ntohs(vlan_id) == 0)
|
|
vlan_id = rocker_port->internal_vlan_id;
|
|
|
|
err = rocker_flow_tbl_term_mac(rocker_port,
|
|
rocker_port->pport, in_pport_mask,
|
|
ctrl->eth_type, ctrl->eth_dst,
|
|
ctrl->eth_dst_mask, vlan_id,
|
|
vlan_id_mask, ctrl->copy_to_cpu,
|
|
flags);
|
|
|
|
if (err)
|
|
netdev_err(rocker_port->dev, "Error (%d) ctrl term\n", err);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_ctrl_vlan(struct rocker_port *rocker_port, int flags,
|
|
struct rocker_ctrl *ctrl, __be16 vlan_id)
|
|
{
|
|
if (ctrl->acl)
|
|
return rocker_port_ctrl_vlan_acl(rocker_port, flags,
|
|
ctrl, vlan_id);
|
|
if (ctrl->bridge)
|
|
return rocker_port_ctrl_vlan_bridge(rocker_port, flags,
|
|
ctrl, vlan_id);
|
|
|
|
if (ctrl->term)
|
|
return rocker_port_ctrl_vlan_term(rocker_port, flags,
|
|
ctrl, vlan_id);
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int rocker_port_ctrl_vlan_add(struct rocker_port *rocker_port,
|
|
int flags, __be16 vlan_id)
|
|
{
|
|
int err = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < ROCKER_CTRL_MAX; i++) {
|
|
if (rocker_port->ctrls[i]) {
|
|
err = rocker_port_ctrl_vlan(rocker_port, flags,
|
|
&rocker_ctrls[i], vlan_id);
|
|
if (err)
|
|
return err;
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_ctrl(struct rocker_port *rocker_port, int flags,
|
|
struct rocker_ctrl *ctrl)
|
|
{
|
|
u16 vid;
|
|
int err = 0;
|
|
|
|
for (vid = 1; vid < VLAN_N_VID; vid++) {
|
|
if (!test_bit(vid, rocker_port->vlan_bitmap))
|
|
continue;
|
|
err = rocker_port_ctrl_vlan(rocker_port, flags,
|
|
ctrl, htons(vid));
|
|
if (err)
|
|
break;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_vlan(struct rocker_port *rocker_port, int flags,
|
|
u16 vid)
|
|
{
|
|
enum rocker_of_dpa_table_id goto_tbl =
|
|
ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC;
|
|
u32 in_pport = rocker_port->pport;
|
|
__be16 vlan_id = htons(vid);
|
|
__be16 vlan_id_mask = htons(0xffff);
|
|
__be16 internal_vlan_id;
|
|
bool untagged;
|
|
bool adding = !(flags & ROCKER_OP_FLAG_REMOVE);
|
|
int err;
|
|
|
|
internal_vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, &untagged);
|
|
|
|
if (adding && test_and_set_bit(ntohs(internal_vlan_id),
|
|
rocker_port->vlan_bitmap))
|
|
return 0; /* already added */
|
|
else if (!adding && !test_and_clear_bit(ntohs(internal_vlan_id),
|
|
rocker_port->vlan_bitmap))
|
|
return 0; /* already removed */
|
|
|
|
if (adding) {
|
|
err = rocker_port_ctrl_vlan_add(rocker_port, flags,
|
|
internal_vlan_id);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) port ctrl vlan add\n", err);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
err = rocker_port_vlan_l2_groups(rocker_port, flags,
|
|
internal_vlan_id, untagged);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) port VLAN l2 groups\n", err);
|
|
return err;
|
|
}
|
|
|
|
err = rocker_port_vlan_flood_group(rocker_port, flags,
|
|
internal_vlan_id);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) port VLAN l2 flood group\n", err);
|
|
return err;
|
|
}
|
|
|
|
err = rocker_flow_tbl_vlan(rocker_port, flags,
|
|
in_pport, vlan_id, vlan_id_mask,
|
|
goto_tbl, untagged, internal_vlan_id);
|
|
if (err)
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) port VLAN table\n", err);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_ig_tbl(struct rocker_port *rocker_port, int flags)
|
|
{
|
|
enum rocker_of_dpa_table_id goto_tbl;
|
|
u32 in_pport;
|
|
u32 in_pport_mask;
|
|
int err;
|
|
|
|
/* Normal Ethernet Frames. Matches pkts from any local physical
|
|
* ports. Goto VLAN tbl.
|
|
*/
|
|
|
|
in_pport = 0;
|
|
in_pport_mask = 0xffff0000;
|
|
goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
|
|
|
|
err = rocker_flow_tbl_ig_port(rocker_port, flags,
|
|
in_pport, in_pport_mask,
|
|
goto_tbl);
|
|
if (err)
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) ingress port table entry\n", err);
|
|
|
|
return err;
|
|
}
|
|
|
|
struct rocker_fdb_learn_work {
|
|
struct work_struct work;
|
|
struct net_device *dev;
|
|
int flags;
|
|
u8 addr[ETH_ALEN];
|
|
u16 vid;
|
|
};
|
|
|
|
static void rocker_port_fdb_learn_work(struct work_struct *work)
|
|
{
|
|
struct rocker_fdb_learn_work *lw =
|
|
container_of(work, struct rocker_fdb_learn_work, work);
|
|
bool removing = (lw->flags & ROCKER_OP_FLAG_REMOVE);
|
|
bool learned = (lw->flags & ROCKER_OP_FLAG_LEARNED);
|
|
struct netdev_switch_notifier_fdb_info info;
|
|
|
|
info.addr = lw->addr;
|
|
info.vid = lw->vid;
|
|
|
|
if (learned && removing)
|
|
call_netdev_switch_notifiers(NETDEV_SWITCH_FDB_DEL,
|
|
lw->dev, &info.info);
|
|
else if (learned && !removing)
|
|
call_netdev_switch_notifiers(NETDEV_SWITCH_FDB_ADD,
|
|
lw->dev, &info.info);
|
|
|
|
kfree(work);
|
|
}
|
|
|
|
static int rocker_port_fdb_learn(struct rocker_port *rocker_port,
|
|
int flags, const u8 *addr, __be16 vlan_id)
|
|
{
|
|
struct rocker_fdb_learn_work *lw;
|
|
enum rocker_of_dpa_table_id goto_tbl =
|
|
ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
|
|
u32 out_pport = rocker_port->pport;
|
|
u32 tunnel_id = 0;
|
|
u32 group_id = ROCKER_GROUP_NONE;
|
|
bool syncing = !!(rocker_port->brport_flags & BR_LEARNING_SYNC);
|
|
bool copy_to_cpu = false;
|
|
int err;
|
|
|
|
if (rocker_port_is_bridged(rocker_port))
|
|
group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport);
|
|
|
|
if (!(flags & ROCKER_OP_FLAG_REFRESH)) {
|
|
err = rocker_flow_tbl_bridge(rocker_port, flags, addr, NULL,
|
|
vlan_id, tunnel_id, goto_tbl,
|
|
group_id, copy_to_cpu);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (!syncing)
|
|
return 0;
|
|
|
|
if (!rocker_port_is_bridged(rocker_port))
|
|
return 0;
|
|
|
|
lw = kmalloc(sizeof(*lw), rocker_op_flags_gfp(flags));
|
|
if (!lw)
|
|
return -ENOMEM;
|
|
|
|
INIT_WORK(&lw->work, rocker_port_fdb_learn_work);
|
|
|
|
lw->dev = rocker_port->dev;
|
|
lw->flags = flags;
|
|
ether_addr_copy(lw->addr, addr);
|
|
lw->vid = rocker_port_vlan_to_vid(rocker_port, vlan_id);
|
|
|
|
schedule_work(&lw->work);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct rocker_fdb_tbl_entry *
|
|
rocker_fdb_tbl_find(struct rocker *rocker, struct rocker_fdb_tbl_entry *match)
|
|
{
|
|
struct rocker_fdb_tbl_entry *found;
|
|
|
|
hash_for_each_possible(rocker->fdb_tbl, found, entry, match->key_crc32)
|
|
if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0)
|
|
return found;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int rocker_port_fdb(struct rocker_port *rocker_port,
|
|
const unsigned char *addr,
|
|
__be16 vlan_id, int flags)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_fdb_tbl_entry *fdb;
|
|
struct rocker_fdb_tbl_entry *found;
|
|
bool removing = (flags & ROCKER_OP_FLAG_REMOVE);
|
|
unsigned long lock_flags;
|
|
|
|
fdb = kzalloc(sizeof(*fdb), rocker_op_flags_gfp(flags));
|
|
if (!fdb)
|
|
return -ENOMEM;
|
|
|
|
fdb->learned = (flags & ROCKER_OP_FLAG_LEARNED);
|
|
fdb->key.pport = rocker_port->pport;
|
|
ether_addr_copy(fdb->key.addr, addr);
|
|
fdb->key.vlan_id = vlan_id;
|
|
fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key));
|
|
|
|
spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
|
|
|
|
found = rocker_fdb_tbl_find(rocker, fdb);
|
|
|
|
if (removing && found) {
|
|
kfree(fdb);
|
|
hash_del(&found->entry);
|
|
} else if (!removing && !found) {
|
|
hash_add(rocker->fdb_tbl, &fdb->entry, fdb->key_crc32);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
|
|
|
|
/* Check if adding and already exists, or removing and can't find */
|
|
if (!found != !removing) {
|
|
kfree(fdb);
|
|
if (!found && removing)
|
|
return 0;
|
|
/* Refreshing existing to update aging timers */
|
|
flags |= ROCKER_OP_FLAG_REFRESH;
|
|
}
|
|
|
|
return rocker_port_fdb_learn(rocker_port, flags, addr, vlan_id);
|
|
}
|
|
|
|
static int rocker_port_fdb_flush(struct rocker_port *rocker_port)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_fdb_tbl_entry *found;
|
|
unsigned long lock_flags;
|
|
int flags = ROCKER_OP_FLAG_NOWAIT | ROCKER_OP_FLAG_REMOVE;
|
|
struct hlist_node *tmp;
|
|
int bkt;
|
|
int err = 0;
|
|
|
|
if (rocker_port->stp_state == BR_STATE_LEARNING ||
|
|
rocker_port->stp_state == BR_STATE_FORWARDING)
|
|
return 0;
|
|
|
|
spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
|
|
|
|
hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
|
|
if (found->key.pport != rocker_port->pport)
|
|
continue;
|
|
if (!found->learned)
|
|
continue;
|
|
err = rocker_port_fdb_learn(rocker_port, flags,
|
|
found->key.addr,
|
|
found->key.vlan_id);
|
|
if (err)
|
|
goto err_out;
|
|
hash_del(&found->entry);
|
|
}
|
|
|
|
err_out:
|
|
spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_router_mac(struct rocker_port *rocker_port,
|
|
int flags, __be16 vlan_id)
|
|
{
|
|
u32 in_pport_mask = 0xffffffff;
|
|
__be16 eth_type;
|
|
const u8 *dst_mac_mask = ff_mac;
|
|
__be16 vlan_id_mask = htons(0xffff);
|
|
bool copy_to_cpu = false;
|
|
int err;
|
|
|
|
if (ntohs(vlan_id) == 0)
|
|
vlan_id = rocker_port->internal_vlan_id;
|
|
|
|
eth_type = htons(ETH_P_IP);
|
|
err = rocker_flow_tbl_term_mac(rocker_port,
|
|
rocker_port->pport, in_pport_mask,
|
|
eth_type, rocker_port->dev->dev_addr,
|
|
dst_mac_mask, vlan_id, vlan_id_mask,
|
|
copy_to_cpu, flags);
|
|
if (err)
|
|
return err;
|
|
|
|
eth_type = htons(ETH_P_IPV6);
|
|
err = rocker_flow_tbl_term_mac(rocker_port,
|
|
rocker_port->pport, in_pport_mask,
|
|
eth_type, rocker_port->dev->dev_addr,
|
|
dst_mac_mask, vlan_id, vlan_id_mask,
|
|
copy_to_cpu, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_fwding(struct rocker_port *rocker_port)
|
|
{
|
|
bool pop_vlan;
|
|
u32 out_pport;
|
|
__be16 vlan_id;
|
|
u16 vid;
|
|
int flags = ROCKER_OP_FLAG_NOWAIT;
|
|
int err;
|
|
|
|
/* Port will be forwarding-enabled if its STP state is LEARNING
|
|
* or FORWARDING. Traffic from CPU can still egress, regardless of
|
|
* port STP state. Use L2 interface group on port VLANs as a way
|
|
* to toggle port forwarding: if forwarding is disabled, L2
|
|
* interface group will not exist.
|
|
*/
|
|
|
|
if (rocker_port->stp_state != BR_STATE_LEARNING &&
|
|
rocker_port->stp_state != BR_STATE_FORWARDING)
|
|
flags |= ROCKER_OP_FLAG_REMOVE;
|
|
|
|
out_pport = rocker_port->pport;
|
|
for (vid = 1; vid < VLAN_N_VID; vid++) {
|
|
if (!test_bit(vid, rocker_port->vlan_bitmap))
|
|
continue;
|
|
vlan_id = htons(vid);
|
|
pop_vlan = rocker_vlan_id_is_internal(vlan_id);
|
|
err = rocker_group_l2_interface(rocker_port, flags,
|
|
vlan_id, out_pport,
|
|
pop_vlan);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev,
|
|
"Error (%d) port VLAN l2 group for pport %d\n",
|
|
err, out_pport);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_port_stp_update(struct rocker_port *rocker_port, u8 state)
|
|
{
|
|
bool want[ROCKER_CTRL_MAX] = { 0, };
|
|
int flags;
|
|
int err;
|
|
int i;
|
|
|
|
if (rocker_port->stp_state == state)
|
|
return 0;
|
|
|
|
rocker_port->stp_state = state;
|
|
|
|
switch (state) {
|
|
case BR_STATE_DISABLED:
|
|
/* port is completely disabled */
|
|
break;
|
|
case BR_STATE_LISTENING:
|
|
case BR_STATE_BLOCKING:
|
|
want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
|
|
break;
|
|
case BR_STATE_LEARNING:
|
|
case BR_STATE_FORWARDING:
|
|
want[ROCKER_CTRL_LINK_LOCAL_MCAST] = true;
|
|
want[ROCKER_CTRL_IPV4_MCAST] = true;
|
|
want[ROCKER_CTRL_IPV6_MCAST] = true;
|
|
if (rocker_port_is_bridged(rocker_port))
|
|
want[ROCKER_CTRL_DFLT_BRIDGING] = true;
|
|
else
|
|
want[ROCKER_CTRL_LOCAL_ARP] = true;
|
|
break;
|
|
}
|
|
|
|
for (i = 0; i < ROCKER_CTRL_MAX; i++) {
|
|
if (want[i] != rocker_port->ctrls[i]) {
|
|
flags = ROCKER_OP_FLAG_NOWAIT |
|
|
(want[i] ? 0 : ROCKER_OP_FLAG_REMOVE);
|
|
err = rocker_port_ctrl(rocker_port, flags,
|
|
&rocker_ctrls[i]);
|
|
if (err)
|
|
return err;
|
|
rocker_port->ctrls[i] = want[i];
|
|
}
|
|
}
|
|
|
|
err = rocker_port_fdb_flush(rocker_port);
|
|
if (err)
|
|
return err;
|
|
|
|
return rocker_port_fwding(rocker_port);
|
|
}
|
|
|
|
static int rocker_port_fwd_enable(struct rocker_port *rocker_port)
|
|
{
|
|
if (rocker_port_is_bridged(rocker_port))
|
|
/* bridge STP will enable port */
|
|
return 0;
|
|
|
|
/* port is not bridged, so simulate going to FORWARDING state */
|
|
return rocker_port_stp_update(rocker_port, BR_STATE_FORWARDING);
|
|
}
|
|
|
|
static int rocker_port_fwd_disable(struct rocker_port *rocker_port)
|
|
{
|
|
if (rocker_port_is_bridged(rocker_port))
|
|
/* bridge STP will disable port */
|
|
return 0;
|
|
|
|
/* port is not bridged, so simulate going to DISABLED state */
|
|
return rocker_port_stp_update(rocker_port, BR_STATE_DISABLED);
|
|
}
|
|
|
|
static struct rocker_internal_vlan_tbl_entry *
|
|
rocker_internal_vlan_tbl_find(struct rocker *rocker, int ifindex)
|
|
{
|
|
struct rocker_internal_vlan_tbl_entry *found;
|
|
|
|
hash_for_each_possible(rocker->internal_vlan_tbl, found,
|
|
entry, ifindex) {
|
|
if (found->ifindex == ifindex)
|
|
return found;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static __be16 rocker_port_internal_vlan_id_get(struct rocker_port *rocker_port,
|
|
int ifindex)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_internal_vlan_tbl_entry *entry;
|
|
struct rocker_internal_vlan_tbl_entry *found;
|
|
unsigned long lock_flags;
|
|
int i;
|
|
|
|
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
|
|
if (!entry)
|
|
return 0;
|
|
|
|
entry->ifindex = ifindex;
|
|
|
|
spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
|
|
|
|
found = rocker_internal_vlan_tbl_find(rocker, ifindex);
|
|
if (found) {
|
|
kfree(entry);
|
|
goto found;
|
|
}
|
|
|
|
found = entry;
|
|
hash_add(rocker->internal_vlan_tbl, &found->entry, found->ifindex);
|
|
|
|
for (i = 0; i < ROCKER_N_INTERNAL_VLANS; i++) {
|
|
if (test_and_set_bit(i, rocker->internal_vlan_bitmap))
|
|
continue;
|
|
found->vlan_id = htons(ROCKER_INTERNAL_VLAN_ID_BASE + i);
|
|
goto found;
|
|
}
|
|
|
|
netdev_err(rocker_port->dev, "Out of internal VLAN IDs\n");
|
|
|
|
found:
|
|
found->ref_count++;
|
|
spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
|
|
|
|
return found->vlan_id;
|
|
}
|
|
|
|
static void rocker_port_internal_vlan_id_put(struct rocker_port *rocker_port,
|
|
int ifindex)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_internal_vlan_tbl_entry *found;
|
|
unsigned long lock_flags;
|
|
unsigned long bit;
|
|
|
|
spin_lock_irqsave(&rocker->internal_vlan_tbl_lock, lock_flags);
|
|
|
|
found = rocker_internal_vlan_tbl_find(rocker, ifindex);
|
|
if (!found) {
|
|
netdev_err(rocker_port->dev,
|
|
"ifindex (%d) not found in internal VLAN tbl\n",
|
|
ifindex);
|
|
goto not_found;
|
|
}
|
|
|
|
if (--found->ref_count <= 0) {
|
|
bit = ntohs(found->vlan_id) - ROCKER_INTERNAL_VLAN_ID_BASE;
|
|
clear_bit(bit, rocker->internal_vlan_bitmap);
|
|
hash_del(&found->entry);
|
|
kfree(found);
|
|
}
|
|
|
|
not_found:
|
|
spin_unlock_irqrestore(&rocker->internal_vlan_tbl_lock, lock_flags);
|
|
}
|
|
|
|
static int rocker_port_fib_ipv4(struct rocker_port *rocker_port, __be32 dst,
|
|
int dst_len, struct fib_info *fi, u32 tb_id,
|
|
int flags)
|
|
{
|
|
struct fib_nh *nh;
|
|
__be16 eth_type = htons(ETH_P_IP);
|
|
__be32 dst_mask = inet_make_mask(dst_len);
|
|
__be16 internal_vlan_id = rocker_port->internal_vlan_id;
|
|
u32 priority = fi->fib_priority;
|
|
enum rocker_of_dpa_table_id goto_tbl =
|
|
ROCKER_OF_DPA_TABLE_ID_ACL_POLICY;
|
|
u32 group_id;
|
|
bool nh_on_port;
|
|
bool has_gw;
|
|
u32 index;
|
|
int err;
|
|
|
|
/* XXX support ECMP */
|
|
|
|
nh = fi->fib_nh;
|
|
nh_on_port = (fi->fib_dev == rocker_port->dev);
|
|
has_gw = !!nh->nh_gw;
|
|
|
|
if (has_gw && nh_on_port) {
|
|
err = rocker_port_ipv4_nh(rocker_port, flags,
|
|
nh->nh_gw, &index);
|
|
if (err)
|
|
return err;
|
|
|
|
group_id = ROCKER_GROUP_L3_UNICAST(index);
|
|
} else {
|
|
/* Send to CPU for processing */
|
|
group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0);
|
|
}
|
|
|
|
err = rocker_flow_tbl_ucast4_routing(rocker_port, eth_type, dst,
|
|
dst_mask, priority, goto_tbl,
|
|
group_id, flags);
|
|
if (err)
|
|
netdev_err(rocker_port->dev, "Error (%d) IPv4 route %pI4\n",
|
|
err, &dst);
|
|
|
|
return err;
|
|
}
|
|
|
|
/*****************
|
|
* Net device ops
|
|
*****************/
|
|
|
|
static int rocker_port_open(struct net_device *dev)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
int err;
|
|
|
|
err = rocker_port_dma_rings_init(rocker_port);
|
|
if (err)
|
|
return err;
|
|
|
|
err = request_irq(rocker_msix_tx_vector(rocker_port),
|
|
rocker_tx_irq_handler, 0,
|
|
rocker_driver_name, rocker_port);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev, "cannot assign tx irq\n");
|
|
goto err_request_tx_irq;
|
|
}
|
|
|
|
err = request_irq(rocker_msix_rx_vector(rocker_port),
|
|
rocker_rx_irq_handler, 0,
|
|
rocker_driver_name, rocker_port);
|
|
if (err) {
|
|
netdev_err(rocker_port->dev, "cannot assign rx irq\n");
|
|
goto err_request_rx_irq;
|
|
}
|
|
|
|
err = rocker_port_fwd_enable(rocker_port);
|
|
if (err)
|
|
goto err_fwd_enable;
|
|
|
|
napi_enable(&rocker_port->napi_tx);
|
|
napi_enable(&rocker_port->napi_rx);
|
|
rocker_port_set_enable(rocker_port, true);
|
|
netif_start_queue(dev);
|
|
return 0;
|
|
|
|
err_fwd_enable:
|
|
free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
|
|
err_request_rx_irq:
|
|
free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
|
|
err_request_tx_irq:
|
|
rocker_port_dma_rings_fini(rocker_port);
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_stop(struct net_device *dev)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
|
|
netif_stop_queue(dev);
|
|
rocker_port_set_enable(rocker_port, false);
|
|
napi_disable(&rocker_port->napi_rx);
|
|
napi_disable(&rocker_port->napi_tx);
|
|
rocker_port_fwd_disable(rocker_port);
|
|
free_irq(rocker_msix_rx_vector(rocker_port), rocker_port);
|
|
free_irq(rocker_msix_tx_vector(rocker_port), rocker_port);
|
|
rocker_port_dma_rings_fini(rocker_port);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rocker_tx_desc_frags_unmap(struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
struct rocker_tlv *attrs[ROCKER_TLV_TX_MAX + 1];
|
|
struct rocker_tlv *attr;
|
|
int rem;
|
|
|
|
rocker_tlv_parse_desc(attrs, ROCKER_TLV_TX_MAX, desc_info);
|
|
if (!attrs[ROCKER_TLV_TX_FRAGS])
|
|
return;
|
|
rocker_tlv_for_each_nested(attr, attrs[ROCKER_TLV_TX_FRAGS], rem) {
|
|
struct rocker_tlv *frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_MAX + 1];
|
|
dma_addr_t dma_handle;
|
|
size_t len;
|
|
|
|
if (rocker_tlv_type(attr) != ROCKER_TLV_TX_FRAG)
|
|
continue;
|
|
rocker_tlv_parse_nested(frag_attrs, ROCKER_TLV_TX_FRAG_ATTR_MAX,
|
|
attr);
|
|
if (!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR] ||
|
|
!frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN])
|
|
continue;
|
|
dma_handle = rocker_tlv_get_u64(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]);
|
|
len = rocker_tlv_get_u16(frag_attrs[ROCKER_TLV_TX_FRAG_ATTR_LEN]);
|
|
pci_unmap_single(pdev, dma_handle, len, DMA_TO_DEVICE);
|
|
}
|
|
}
|
|
|
|
static int rocker_tx_desc_frag_map_put(struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
char *buf, size_t buf_len)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
dma_addr_t dma_handle;
|
|
struct rocker_tlv *frag;
|
|
|
|
dma_handle = pci_map_single(pdev, buf, buf_len, DMA_TO_DEVICE);
|
|
if (unlikely(pci_dma_mapping_error(pdev, dma_handle))) {
|
|
if (net_ratelimit())
|
|
netdev_err(rocker_port->dev, "failed to dma map tx frag\n");
|
|
return -EIO;
|
|
}
|
|
frag = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAG);
|
|
if (!frag)
|
|
goto unmap_frag;
|
|
if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_TX_FRAG_ATTR_ADDR,
|
|
dma_handle))
|
|
goto nest_cancel;
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_TX_FRAG_ATTR_LEN,
|
|
buf_len))
|
|
goto nest_cancel;
|
|
rocker_tlv_nest_end(desc_info, frag);
|
|
return 0;
|
|
|
|
nest_cancel:
|
|
rocker_tlv_nest_cancel(desc_info, frag);
|
|
unmap_frag:
|
|
pci_unmap_single(pdev, dma_handle, buf_len, DMA_TO_DEVICE);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static netdev_tx_t rocker_port_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_desc_info *desc_info;
|
|
struct rocker_tlv *frags;
|
|
int i;
|
|
int err;
|
|
|
|
desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
|
|
if (unlikely(!desc_info)) {
|
|
if (net_ratelimit())
|
|
netdev_err(dev, "tx ring full when queue awake\n");
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
|
|
rocker_desc_cookie_ptr_set(desc_info, skb);
|
|
|
|
frags = rocker_tlv_nest_start(desc_info, ROCKER_TLV_TX_FRAGS);
|
|
if (!frags)
|
|
goto out;
|
|
err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
|
|
skb->data, skb_headlen(skb));
|
|
if (err)
|
|
goto nest_cancel;
|
|
if (skb_shinfo(skb)->nr_frags > ROCKER_TX_FRAGS_MAX)
|
|
goto nest_cancel;
|
|
|
|
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
|
|
const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
|
|
|
|
err = rocker_tx_desc_frag_map_put(rocker_port, desc_info,
|
|
skb_frag_address(frag),
|
|
skb_frag_size(frag));
|
|
if (err)
|
|
goto unmap_frags;
|
|
}
|
|
rocker_tlv_nest_end(desc_info, frags);
|
|
|
|
rocker_desc_gen_clear(desc_info);
|
|
rocker_desc_head_set(rocker, &rocker_port->tx_ring, desc_info);
|
|
|
|
desc_info = rocker_desc_head_get(&rocker_port->tx_ring);
|
|
if (!desc_info)
|
|
netif_stop_queue(dev);
|
|
|
|
return NETDEV_TX_OK;
|
|
|
|
unmap_frags:
|
|
rocker_tx_desc_frags_unmap(rocker_port, desc_info);
|
|
nest_cancel:
|
|
rocker_tlv_nest_cancel(desc_info, frags);
|
|
out:
|
|
dev_kfree_skb(skb);
|
|
dev->stats.tx_dropped++;
|
|
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static int rocker_port_set_mac_address(struct net_device *dev, void *p)
|
|
{
|
|
struct sockaddr *addr = p;
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
int err;
|
|
|
|
if (!is_valid_ether_addr(addr->sa_data))
|
|
return -EADDRNOTAVAIL;
|
|
|
|
err = rocker_cmd_set_port_settings_macaddr(rocker_port, addr->sa_data);
|
|
if (err)
|
|
return err;
|
|
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_port_vlan_rx_add_vid(struct net_device *dev,
|
|
__be16 proto, u16 vid)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
int err;
|
|
|
|
err = rocker_port_vlan(rocker_port, 0, vid);
|
|
if (err)
|
|
return err;
|
|
|
|
return rocker_port_router_mac(rocker_port, 0, htons(vid));
|
|
}
|
|
|
|
static int rocker_port_vlan_rx_kill_vid(struct net_device *dev,
|
|
__be16 proto, u16 vid)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
int err;
|
|
|
|
err = rocker_port_router_mac(rocker_port, ROCKER_OP_FLAG_REMOVE,
|
|
htons(vid));
|
|
if (err)
|
|
return err;
|
|
|
|
return rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, vid);
|
|
}
|
|
|
|
static int rocker_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
|
|
struct net_device *dev,
|
|
const unsigned char *addr, u16 vid,
|
|
u16 nlm_flags)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
__be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
|
|
int flags = 0;
|
|
|
|
if (!rocker_port_is_bridged(rocker_port))
|
|
return -EINVAL;
|
|
|
|
return rocker_port_fdb(rocker_port, addr, vlan_id, flags);
|
|
}
|
|
|
|
static int rocker_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
|
|
struct net_device *dev,
|
|
const unsigned char *addr, u16 vid)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
__be16 vlan_id = rocker_port_vid_to_vlan(rocker_port, vid, NULL);
|
|
int flags = ROCKER_OP_FLAG_REMOVE;
|
|
|
|
if (!rocker_port_is_bridged(rocker_port))
|
|
return -EINVAL;
|
|
|
|
return rocker_port_fdb(rocker_port, addr, vlan_id, flags);
|
|
}
|
|
|
|
static int rocker_fdb_fill_info(struct sk_buff *skb,
|
|
struct rocker_port *rocker_port,
|
|
const unsigned char *addr, u16 vid,
|
|
u32 portid, u32 seq, int type,
|
|
unsigned int flags)
|
|
{
|
|
struct nlmsghdr *nlh;
|
|
struct ndmsg *ndm;
|
|
|
|
nlh = nlmsg_put(skb, portid, seq, type, sizeof(*ndm), flags);
|
|
if (!nlh)
|
|
return -EMSGSIZE;
|
|
|
|
ndm = nlmsg_data(nlh);
|
|
ndm->ndm_family = AF_BRIDGE;
|
|
ndm->ndm_pad1 = 0;
|
|
ndm->ndm_pad2 = 0;
|
|
ndm->ndm_flags = NTF_SELF;
|
|
ndm->ndm_type = 0;
|
|
ndm->ndm_ifindex = rocker_port->dev->ifindex;
|
|
ndm->ndm_state = NUD_REACHABLE;
|
|
|
|
if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr))
|
|
goto nla_put_failure;
|
|
|
|
if (vid && nla_put_u16(skb, NDA_VLAN, vid))
|
|
goto nla_put_failure;
|
|
|
|
nlmsg_end(skb, nlh);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nlmsg_cancel(skb, nlh);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int rocker_port_fdb_dump(struct sk_buff *skb,
|
|
struct netlink_callback *cb,
|
|
struct net_device *dev,
|
|
struct net_device *filter_dev,
|
|
int idx)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_fdb_tbl_entry *found;
|
|
struct hlist_node *tmp;
|
|
int bkt;
|
|
unsigned long lock_flags;
|
|
const unsigned char *addr;
|
|
u16 vid;
|
|
int err;
|
|
|
|
spin_lock_irqsave(&rocker->fdb_tbl_lock, lock_flags);
|
|
hash_for_each_safe(rocker->fdb_tbl, bkt, tmp, found, entry) {
|
|
if (found->key.pport != rocker_port->pport)
|
|
continue;
|
|
if (idx < cb->args[0])
|
|
goto skip;
|
|
addr = found->key.addr;
|
|
vid = rocker_port_vlan_to_vid(rocker_port, found->key.vlan_id);
|
|
err = rocker_fdb_fill_info(skb, rocker_port, addr, vid,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq,
|
|
RTM_NEWNEIGH, NLM_F_MULTI);
|
|
if (err < 0)
|
|
break;
|
|
skip:
|
|
++idx;
|
|
}
|
|
spin_unlock_irqrestore(&rocker->fdb_tbl_lock, lock_flags);
|
|
return idx;
|
|
}
|
|
|
|
static int rocker_port_bridge_setlink(struct net_device *dev,
|
|
struct nlmsghdr *nlh, u16 flags)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
struct nlattr *protinfo;
|
|
struct nlattr *attr;
|
|
int err;
|
|
|
|
protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg),
|
|
IFLA_PROTINFO);
|
|
if (protinfo) {
|
|
attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING);
|
|
if (attr) {
|
|
if (nla_len(attr) < sizeof(u8))
|
|
return -EINVAL;
|
|
|
|
if (nla_get_u8(attr))
|
|
rocker_port->brport_flags |= BR_LEARNING;
|
|
else
|
|
rocker_port->brport_flags &= ~BR_LEARNING;
|
|
err = rocker_port_set_learning(rocker_port);
|
|
if (err)
|
|
return err;
|
|
}
|
|
attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING_SYNC);
|
|
if (attr) {
|
|
if (nla_len(attr) < sizeof(u8))
|
|
return -EINVAL;
|
|
|
|
if (nla_get_u8(attr))
|
|
rocker_port->brport_flags |= BR_LEARNING_SYNC;
|
|
else
|
|
rocker_port->brport_flags &= ~BR_LEARNING_SYNC;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
|
|
struct net_device *dev,
|
|
u32 filter_mask)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
u16 mode = BRIDGE_MODE_UNDEF;
|
|
u32 mask = BR_LEARNING | BR_LEARNING_SYNC;
|
|
|
|
return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode,
|
|
rocker_port->brport_flags, mask);
|
|
}
|
|
|
|
static int rocker_port_get_phys_port_name(struct net_device *dev,
|
|
char *buf, size_t len)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
struct port_name name = { .buf = buf, .len = len };
|
|
int err;
|
|
|
|
err = rocker_cmd_exec(rocker_port->rocker, rocker_port,
|
|
rocker_cmd_get_port_settings_prep, NULL,
|
|
rocker_cmd_get_port_settings_phys_name_proc,
|
|
&name, false);
|
|
|
|
return err ? -EOPNOTSUPP : 0;
|
|
}
|
|
|
|
static const struct net_device_ops rocker_port_netdev_ops = {
|
|
.ndo_open = rocker_port_open,
|
|
.ndo_stop = rocker_port_stop,
|
|
.ndo_start_xmit = rocker_port_xmit,
|
|
.ndo_set_mac_address = rocker_port_set_mac_address,
|
|
.ndo_vlan_rx_add_vid = rocker_port_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = rocker_port_vlan_rx_kill_vid,
|
|
.ndo_fdb_add = rocker_port_fdb_add,
|
|
.ndo_fdb_del = rocker_port_fdb_del,
|
|
.ndo_fdb_dump = rocker_port_fdb_dump,
|
|
.ndo_bridge_setlink = rocker_port_bridge_setlink,
|
|
.ndo_bridge_getlink = rocker_port_bridge_getlink,
|
|
.ndo_get_phys_port_name = rocker_port_get_phys_port_name,
|
|
};
|
|
|
|
/********************
|
|
* swdev interface
|
|
********************/
|
|
|
|
static int rocker_port_swdev_parent_id_get(struct net_device *dev,
|
|
struct netdev_phys_item_id *psid)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
|
|
psid->id_len = sizeof(rocker->hw.id);
|
|
memcpy(&psid->id, &rocker->hw.id, psid->id_len);
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_port_swdev_port_stp_update(struct net_device *dev, u8 state)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
|
|
return rocker_port_stp_update(rocker_port, state);
|
|
}
|
|
|
|
static int rocker_port_swdev_fib_ipv4_add(struct net_device *dev,
|
|
__be32 dst, int dst_len,
|
|
struct fib_info *fi,
|
|
u8 tos, u8 type,
|
|
u32 nlflags, u32 tb_id)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
int flags = 0;
|
|
|
|
return rocker_port_fib_ipv4(rocker_port, dst, dst_len,
|
|
fi, tb_id, flags);
|
|
}
|
|
|
|
static int rocker_port_swdev_fib_ipv4_del(struct net_device *dev,
|
|
__be32 dst, int dst_len,
|
|
struct fib_info *fi,
|
|
u8 tos, u8 type, u32 tb_id)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
int flags = ROCKER_OP_FLAG_REMOVE;
|
|
|
|
return rocker_port_fib_ipv4(rocker_port, dst, dst_len,
|
|
fi, tb_id, flags);
|
|
}
|
|
|
|
static const struct swdev_ops rocker_port_swdev_ops = {
|
|
.swdev_parent_id_get = rocker_port_swdev_parent_id_get,
|
|
.swdev_port_stp_update = rocker_port_swdev_port_stp_update,
|
|
.swdev_fib_ipv4_add = rocker_port_swdev_fib_ipv4_add,
|
|
.swdev_fib_ipv4_del = rocker_port_swdev_fib_ipv4_del,
|
|
};
|
|
|
|
/********************
|
|
* ethtool interface
|
|
********************/
|
|
|
|
static int rocker_port_get_settings(struct net_device *dev,
|
|
struct ethtool_cmd *ecmd)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
|
|
return rocker_cmd_get_port_settings_ethtool(rocker_port, ecmd);
|
|
}
|
|
|
|
static int rocker_port_set_settings(struct net_device *dev,
|
|
struct ethtool_cmd *ecmd)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
|
|
return rocker_cmd_set_port_settings_ethtool(rocker_port, ecmd);
|
|
}
|
|
|
|
static void rocker_port_get_drvinfo(struct net_device *dev,
|
|
struct ethtool_drvinfo *drvinfo)
|
|
{
|
|
strlcpy(drvinfo->driver, rocker_driver_name, sizeof(drvinfo->driver));
|
|
strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
|
|
}
|
|
|
|
static struct rocker_port_stats {
|
|
char str[ETH_GSTRING_LEN];
|
|
int type;
|
|
} rocker_port_stats[] = {
|
|
{ "rx_packets", ROCKER_TLV_CMD_PORT_STATS_RX_PKTS, },
|
|
{ "rx_bytes", ROCKER_TLV_CMD_PORT_STATS_RX_BYTES, },
|
|
{ "rx_dropped", ROCKER_TLV_CMD_PORT_STATS_RX_DROPPED, },
|
|
{ "rx_errors", ROCKER_TLV_CMD_PORT_STATS_RX_ERRORS, },
|
|
|
|
{ "tx_packets", ROCKER_TLV_CMD_PORT_STATS_TX_PKTS, },
|
|
{ "tx_bytes", ROCKER_TLV_CMD_PORT_STATS_TX_BYTES, },
|
|
{ "tx_dropped", ROCKER_TLV_CMD_PORT_STATS_TX_DROPPED, },
|
|
{ "tx_errors", ROCKER_TLV_CMD_PORT_STATS_TX_ERRORS, },
|
|
};
|
|
|
|
#define ROCKER_PORT_STATS_LEN ARRAY_SIZE(rocker_port_stats)
|
|
|
|
static void rocker_port_get_strings(struct net_device *netdev, u32 stringset,
|
|
u8 *data)
|
|
{
|
|
u8 *p = data;
|
|
int i;
|
|
|
|
switch (stringset) {
|
|
case ETH_SS_STATS:
|
|
for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
|
|
memcpy(p, rocker_port_stats[i].str, ETH_GSTRING_LEN);
|
|
p += ETH_GSTRING_LEN;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_get_port_stats_prep(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
struct rocker_tlv *cmd_stats;
|
|
|
|
if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE,
|
|
ROCKER_TLV_CMD_TYPE_GET_PORT_STATS))
|
|
return -EMSGSIZE;
|
|
|
|
cmd_stats = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO);
|
|
if (!cmd_stats)
|
|
return -EMSGSIZE;
|
|
|
|
if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_CMD_PORT_STATS_PPORT,
|
|
rocker_port->pport))
|
|
return -EMSGSIZE;
|
|
|
|
rocker_tlv_nest_end(desc_info, cmd_stats);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rocker_cmd_get_port_stats_ethtool_proc(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info,
|
|
void *priv)
|
|
{
|
|
struct rocker_tlv *attrs[ROCKER_TLV_CMD_MAX + 1];
|
|
struct rocker_tlv *stats_attrs[ROCKER_TLV_CMD_PORT_STATS_MAX + 1];
|
|
struct rocker_tlv *pattr;
|
|
u32 pport;
|
|
u64 *data = priv;
|
|
int i;
|
|
|
|
rocker_tlv_parse_desc(attrs, ROCKER_TLV_CMD_MAX, desc_info);
|
|
|
|
if (!attrs[ROCKER_TLV_CMD_INFO])
|
|
return -EIO;
|
|
|
|
rocker_tlv_parse_nested(stats_attrs, ROCKER_TLV_CMD_PORT_STATS_MAX,
|
|
attrs[ROCKER_TLV_CMD_INFO]);
|
|
|
|
if (!stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT])
|
|
return -EIO;
|
|
|
|
pport = rocker_tlv_get_u32(stats_attrs[ROCKER_TLV_CMD_PORT_STATS_PPORT]);
|
|
if (pport != rocker_port->pport)
|
|
return -EIO;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(rocker_port_stats); i++) {
|
|
pattr = stats_attrs[rocker_port_stats[i].type];
|
|
if (!pattr)
|
|
continue;
|
|
|
|
data[i] = rocker_tlv_get_u64(pattr);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_cmd_get_port_stats_ethtool(struct rocker_port *rocker_port,
|
|
void *priv)
|
|
{
|
|
return rocker_cmd_exec(rocker_port->rocker, rocker_port,
|
|
rocker_cmd_get_port_stats_prep, NULL,
|
|
rocker_cmd_get_port_stats_ethtool_proc,
|
|
priv, false);
|
|
}
|
|
|
|
static void rocker_port_get_stats(struct net_device *dev,
|
|
struct ethtool_stats *stats, u64 *data)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
|
|
if (rocker_cmd_get_port_stats_ethtool(rocker_port, data) != 0) {
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(rocker_port_stats); ++i)
|
|
data[i] = 0;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static int rocker_port_get_sset_count(struct net_device *netdev, int sset)
|
|
{
|
|
switch (sset) {
|
|
case ETH_SS_STATS:
|
|
return ROCKER_PORT_STATS_LEN;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static const struct ethtool_ops rocker_port_ethtool_ops = {
|
|
.get_settings = rocker_port_get_settings,
|
|
.set_settings = rocker_port_set_settings,
|
|
.get_drvinfo = rocker_port_get_drvinfo,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_strings = rocker_port_get_strings,
|
|
.get_ethtool_stats = rocker_port_get_stats,
|
|
.get_sset_count = rocker_port_get_sset_count,
|
|
};
|
|
|
|
/*****************
|
|
* NAPI interface
|
|
*****************/
|
|
|
|
static struct rocker_port *rocker_port_napi_tx_get(struct napi_struct *napi)
|
|
{
|
|
return container_of(napi, struct rocker_port, napi_tx);
|
|
}
|
|
|
|
static int rocker_port_poll_tx(struct napi_struct *napi, int budget)
|
|
{
|
|
struct rocker_port *rocker_port = rocker_port_napi_tx_get(napi);
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_desc_info *desc_info;
|
|
u32 credits = 0;
|
|
int err;
|
|
|
|
/* Cleanup tx descriptors */
|
|
while ((desc_info = rocker_desc_tail_get(&rocker_port->tx_ring))) {
|
|
struct sk_buff *skb;
|
|
|
|
err = rocker_desc_err(desc_info);
|
|
if (err && net_ratelimit())
|
|
netdev_err(rocker_port->dev, "tx desc received with err %d\n",
|
|
err);
|
|
rocker_tx_desc_frags_unmap(rocker_port, desc_info);
|
|
|
|
skb = rocker_desc_cookie_ptr_get(desc_info);
|
|
if (err == 0) {
|
|
rocker_port->dev->stats.tx_packets++;
|
|
rocker_port->dev->stats.tx_bytes += skb->len;
|
|
} else
|
|
rocker_port->dev->stats.tx_errors++;
|
|
|
|
dev_kfree_skb_any(skb);
|
|
credits++;
|
|
}
|
|
|
|
if (credits && netif_queue_stopped(rocker_port->dev))
|
|
netif_wake_queue(rocker_port->dev);
|
|
|
|
napi_complete(napi);
|
|
rocker_dma_ring_credits_set(rocker, &rocker_port->tx_ring, credits);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rocker_port_rx_proc(struct rocker *rocker,
|
|
struct rocker_port *rocker_port,
|
|
struct rocker_desc_info *desc_info)
|
|
{
|
|
struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
|
|
struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
|
|
size_t rx_len;
|
|
|
|
if (!skb)
|
|
return -ENOENT;
|
|
|
|
rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
|
|
if (!attrs[ROCKER_TLV_RX_FRAG_LEN])
|
|
return -EINVAL;
|
|
|
|
rocker_dma_rx_ring_skb_unmap(rocker, attrs);
|
|
|
|
rx_len = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FRAG_LEN]);
|
|
skb_put(skb, rx_len);
|
|
skb->protocol = eth_type_trans(skb, rocker_port->dev);
|
|
|
|
rocker_port->dev->stats.rx_packets++;
|
|
rocker_port->dev->stats.rx_bytes += skb->len;
|
|
|
|
netif_receive_skb(skb);
|
|
|
|
return rocker_dma_rx_ring_skb_alloc(rocker, rocker_port, desc_info);
|
|
}
|
|
|
|
static struct rocker_port *rocker_port_napi_rx_get(struct napi_struct *napi)
|
|
{
|
|
return container_of(napi, struct rocker_port, napi_rx);
|
|
}
|
|
|
|
static int rocker_port_poll_rx(struct napi_struct *napi, int budget)
|
|
{
|
|
struct rocker_port *rocker_port = rocker_port_napi_rx_get(napi);
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
struct rocker_desc_info *desc_info;
|
|
u32 credits = 0;
|
|
int err;
|
|
|
|
/* Process rx descriptors */
|
|
while (credits < budget &&
|
|
(desc_info = rocker_desc_tail_get(&rocker_port->rx_ring))) {
|
|
err = rocker_desc_err(desc_info);
|
|
if (err) {
|
|
if (net_ratelimit())
|
|
netdev_err(rocker_port->dev, "rx desc received with err %d\n",
|
|
err);
|
|
} else {
|
|
err = rocker_port_rx_proc(rocker, rocker_port,
|
|
desc_info);
|
|
if (err && net_ratelimit())
|
|
netdev_err(rocker_port->dev, "rx processing failed with err %d\n",
|
|
err);
|
|
}
|
|
if (err)
|
|
rocker_port->dev->stats.rx_errors++;
|
|
|
|
rocker_desc_gen_clear(desc_info);
|
|
rocker_desc_head_set(rocker, &rocker_port->rx_ring, desc_info);
|
|
credits++;
|
|
}
|
|
|
|
if (credits < budget)
|
|
napi_complete(napi);
|
|
|
|
rocker_dma_ring_credits_set(rocker, &rocker_port->rx_ring, credits);
|
|
|
|
return credits;
|
|
}
|
|
|
|
/*****************
|
|
* PCI driver ops
|
|
*****************/
|
|
|
|
static void rocker_carrier_init(struct rocker_port *rocker_port)
|
|
{
|
|
struct rocker *rocker = rocker_port->rocker;
|
|
u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS);
|
|
bool link_up;
|
|
|
|
link_up = link_status & (1 << rocker_port->pport);
|
|
if (link_up)
|
|
netif_carrier_on(rocker_port->dev);
|
|
else
|
|
netif_carrier_off(rocker_port->dev);
|
|
}
|
|
|
|
static void rocker_remove_ports(struct rocker *rocker)
|
|
{
|
|
struct rocker_port *rocker_port;
|
|
int i;
|
|
|
|
for (i = 0; i < rocker->port_count; i++) {
|
|
rocker_port = rocker->ports[i];
|
|
rocker_port_ig_tbl(rocker_port, ROCKER_OP_FLAG_REMOVE);
|
|
unregister_netdev(rocker_port->dev);
|
|
}
|
|
kfree(rocker->ports);
|
|
}
|
|
|
|
static void rocker_port_dev_addr_init(struct rocker *rocker,
|
|
struct rocker_port *rocker_port)
|
|
{
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
int err;
|
|
|
|
err = rocker_cmd_get_port_settings_macaddr(rocker_port,
|
|
rocker_port->dev->dev_addr);
|
|
if (err) {
|
|
dev_warn(&pdev->dev, "failed to get mac address, using random\n");
|
|
eth_hw_addr_random(rocker_port->dev);
|
|
}
|
|
}
|
|
|
|
static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
|
|
{
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
struct rocker_port *rocker_port;
|
|
struct net_device *dev;
|
|
int err;
|
|
|
|
dev = alloc_etherdev(sizeof(struct rocker_port));
|
|
if (!dev)
|
|
return -ENOMEM;
|
|
rocker_port = netdev_priv(dev);
|
|
rocker_port->dev = dev;
|
|
rocker_port->rocker = rocker;
|
|
rocker_port->port_number = port_number;
|
|
rocker_port->pport = port_number + 1;
|
|
rocker_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC;
|
|
|
|
rocker_port_dev_addr_init(rocker, rocker_port);
|
|
dev->netdev_ops = &rocker_port_netdev_ops;
|
|
dev->ethtool_ops = &rocker_port_ethtool_ops;
|
|
dev->swdev_ops = &rocker_port_swdev_ops;
|
|
netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx,
|
|
NAPI_POLL_WEIGHT);
|
|
netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx,
|
|
NAPI_POLL_WEIGHT);
|
|
rocker_carrier_init(rocker_port);
|
|
|
|
dev->features |= NETIF_F_NETNS_LOCAL |
|
|
NETIF_F_HW_VLAN_CTAG_FILTER |
|
|
NETIF_F_HW_SWITCH_OFFLOAD;
|
|
|
|
err = register_netdev(dev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "register_netdev failed\n");
|
|
goto err_register_netdev;
|
|
}
|
|
rocker->ports[port_number] = rocker_port;
|
|
|
|
rocker_port_set_learning(rocker_port);
|
|
|
|
rocker_port->internal_vlan_id =
|
|
rocker_port_internal_vlan_id_get(rocker_port, dev->ifindex);
|
|
err = rocker_port_ig_tbl(rocker_port, 0);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "install ig port table failed\n");
|
|
goto err_port_ig_tbl;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_port_ig_tbl:
|
|
unregister_netdev(dev);
|
|
err_register_netdev:
|
|
free_netdev(dev);
|
|
return err;
|
|
}
|
|
|
|
static int rocker_probe_ports(struct rocker *rocker)
|
|
{
|
|
int i;
|
|
size_t alloc_size;
|
|
int err;
|
|
|
|
alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
|
|
rocker->ports = kmalloc(alloc_size, GFP_KERNEL);
|
|
if (!rocker->ports)
|
|
return -ENOMEM;
|
|
for (i = 0; i < rocker->port_count; i++) {
|
|
err = rocker_probe_port(rocker, i);
|
|
if (err)
|
|
goto remove_ports;
|
|
}
|
|
return 0;
|
|
|
|
remove_ports:
|
|
rocker_remove_ports(rocker);
|
|
return err;
|
|
}
|
|
|
|
static int rocker_msix_init(struct rocker *rocker)
|
|
{
|
|
struct pci_dev *pdev = rocker->pdev;
|
|
int msix_entries;
|
|
int i;
|
|
int err;
|
|
|
|
msix_entries = pci_msix_vec_count(pdev);
|
|
if (msix_entries < 0)
|
|
return msix_entries;
|
|
|
|
if (msix_entries != ROCKER_MSIX_VEC_COUNT(rocker->port_count))
|
|
return -EINVAL;
|
|
|
|
rocker->msix_entries = kmalloc_array(msix_entries,
|
|
sizeof(struct msix_entry),
|
|
GFP_KERNEL);
|
|
if (!rocker->msix_entries)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < msix_entries; i++)
|
|
rocker->msix_entries[i].entry = i;
|
|
|
|
err = pci_enable_msix_exact(pdev, rocker->msix_entries, msix_entries);
|
|
if (err < 0)
|
|
goto err_enable_msix;
|
|
|
|
return 0;
|
|
|
|
err_enable_msix:
|
|
kfree(rocker->msix_entries);
|
|
return err;
|
|
}
|
|
|
|
static void rocker_msix_fini(struct rocker *rocker)
|
|
{
|
|
pci_disable_msix(rocker->pdev);
|
|
kfree(rocker->msix_entries);
|
|
}
|
|
|
|
static int rocker_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
{
|
|
struct rocker *rocker;
|
|
int err;
|
|
|
|
rocker = kzalloc(sizeof(*rocker), GFP_KERNEL);
|
|
if (!rocker)
|
|
return -ENOMEM;
|
|
|
|
err = pci_enable_device(pdev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "pci_enable_device failed\n");
|
|
goto err_pci_enable_device;
|
|
}
|
|
|
|
err = pci_request_regions(pdev, rocker_driver_name);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "pci_request_regions failed\n");
|
|
goto err_pci_request_regions;
|
|
}
|
|
|
|
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (!err) {
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (err) {
|
|
dev_err(&pdev->dev, "pci_set_consistent_dma_mask failed\n");
|
|
goto err_pci_set_dma_mask;
|
|
}
|
|
} else {
|
|
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (err) {
|
|
dev_err(&pdev->dev, "pci_set_dma_mask failed\n");
|
|
goto err_pci_set_dma_mask;
|
|
}
|
|
}
|
|
|
|
if (pci_resource_len(pdev, 0) < ROCKER_PCI_BAR0_SIZE) {
|
|
dev_err(&pdev->dev, "invalid PCI region size\n");
|
|
err = -EINVAL;
|
|
goto err_pci_resource_len_check;
|
|
}
|
|
|
|
rocker->hw_addr = ioremap(pci_resource_start(pdev, 0),
|
|
pci_resource_len(pdev, 0));
|
|
if (!rocker->hw_addr) {
|
|
dev_err(&pdev->dev, "ioremap failed\n");
|
|
err = -EIO;
|
|
goto err_ioremap;
|
|
}
|
|
pci_set_master(pdev);
|
|
|
|
rocker->pdev = pdev;
|
|
pci_set_drvdata(pdev, rocker);
|
|
|
|
rocker->port_count = rocker_read32(rocker, PORT_PHYS_COUNT);
|
|
|
|
err = rocker_msix_init(rocker);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "MSI-X init failed\n");
|
|
goto err_msix_init;
|
|
}
|
|
|
|
err = rocker_basic_hw_test(rocker);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "basic hw test failed\n");
|
|
goto err_basic_hw_test;
|
|
}
|
|
|
|
rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
|
|
|
|
err = rocker_dma_rings_init(rocker);
|
|
if (err)
|
|
goto err_dma_rings_init;
|
|
|
|
err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD),
|
|
rocker_cmd_irq_handler, 0,
|
|
rocker_driver_name, rocker);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "cannot assign cmd irq\n");
|
|
goto err_request_cmd_irq;
|
|
}
|
|
|
|
err = request_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT),
|
|
rocker_event_irq_handler, 0,
|
|
rocker_driver_name, rocker);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "cannot assign event irq\n");
|
|
goto err_request_event_irq;
|
|
}
|
|
|
|
rocker->hw.id = rocker_read64(rocker, SWITCH_ID);
|
|
|
|
err = rocker_init_tbls(rocker);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "cannot init rocker tables\n");
|
|
goto err_init_tbls;
|
|
}
|
|
|
|
err = rocker_probe_ports(rocker);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "failed to probe ports\n");
|
|
goto err_probe_ports;
|
|
}
|
|
|
|
dev_info(&pdev->dev, "Rocker switch with id %016llx\n", rocker->hw.id);
|
|
|
|
return 0;
|
|
|
|
err_probe_ports:
|
|
rocker_free_tbls(rocker);
|
|
err_init_tbls:
|
|
free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
|
|
err_request_event_irq:
|
|
free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
|
|
err_request_cmd_irq:
|
|
rocker_dma_rings_fini(rocker);
|
|
err_dma_rings_init:
|
|
err_basic_hw_test:
|
|
rocker_msix_fini(rocker);
|
|
err_msix_init:
|
|
iounmap(rocker->hw_addr);
|
|
err_ioremap:
|
|
err_pci_resource_len_check:
|
|
err_pci_set_dma_mask:
|
|
pci_release_regions(pdev);
|
|
err_pci_request_regions:
|
|
pci_disable_device(pdev);
|
|
err_pci_enable_device:
|
|
kfree(rocker);
|
|
return err;
|
|
}
|
|
|
|
static void rocker_remove(struct pci_dev *pdev)
|
|
{
|
|
struct rocker *rocker = pci_get_drvdata(pdev);
|
|
|
|
rocker_free_tbls(rocker);
|
|
rocker_write32(rocker, CONTROL, ROCKER_CONTROL_RESET);
|
|
rocker_remove_ports(rocker);
|
|
free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_EVENT), rocker);
|
|
free_irq(rocker_msix_vector(rocker, ROCKER_MSIX_VEC_CMD), rocker);
|
|
rocker_dma_rings_fini(rocker);
|
|
rocker_msix_fini(rocker);
|
|
iounmap(rocker->hw_addr);
|
|
pci_release_regions(rocker->pdev);
|
|
pci_disable_device(rocker->pdev);
|
|
kfree(rocker);
|
|
}
|
|
|
|
static struct pci_driver rocker_pci_driver = {
|
|
.name = rocker_driver_name,
|
|
.id_table = rocker_pci_id_table,
|
|
.probe = rocker_probe,
|
|
.remove = rocker_remove,
|
|
};
|
|
|
|
/************************************
|
|
* Net device notifier event handler
|
|
************************************/
|
|
|
|
static bool rocker_port_dev_check(struct net_device *dev)
|
|
{
|
|
return dev->netdev_ops == &rocker_port_netdev_ops;
|
|
}
|
|
|
|
static int rocker_port_bridge_join(struct rocker_port *rocker_port,
|
|
struct net_device *bridge)
|
|
{
|
|
int err;
|
|
|
|
rocker_port_internal_vlan_id_put(rocker_port,
|
|
rocker_port->dev->ifindex);
|
|
|
|
rocker_port->bridge_dev = bridge;
|
|
|
|
/* Use bridge internal VLAN ID for untagged pkts */
|
|
err = rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, 0);
|
|
if (err)
|
|
return err;
|
|
rocker_port->internal_vlan_id =
|
|
rocker_port_internal_vlan_id_get(rocker_port,
|
|
bridge->ifindex);
|
|
return rocker_port_vlan(rocker_port, 0, 0);
|
|
}
|
|
|
|
static int rocker_port_bridge_leave(struct rocker_port *rocker_port)
|
|
{
|
|
int err;
|
|
|
|
rocker_port_internal_vlan_id_put(rocker_port,
|
|
rocker_port->bridge_dev->ifindex);
|
|
|
|
rocker_port->bridge_dev = NULL;
|
|
|
|
/* Use port internal VLAN ID for untagged pkts */
|
|
err = rocker_port_vlan(rocker_port, ROCKER_OP_FLAG_REMOVE, 0);
|
|
if (err)
|
|
return err;
|
|
rocker_port->internal_vlan_id =
|
|
rocker_port_internal_vlan_id_get(rocker_port,
|
|
rocker_port->dev->ifindex);
|
|
err = rocker_port_vlan(rocker_port, 0, 0);
|
|
if (err)
|
|
return err;
|
|
|
|
if (rocker_port->dev->flags & IFF_UP)
|
|
err = rocker_port_fwd_enable(rocker_port);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_port_master_changed(struct net_device *dev)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
struct net_device *master = netdev_master_upper_dev_get(dev);
|
|
int err = 0;
|
|
|
|
/* There are currently three cases handled here:
|
|
* 1. Joining a bridge
|
|
* 2. Leaving a previously joined bridge
|
|
* 3. Other, e.g. being added to or removed from a bond or openvswitch,
|
|
* in which case nothing is done
|
|
*/
|
|
if (master && master->rtnl_link_ops &&
|
|
!strcmp(master->rtnl_link_ops->kind, "bridge"))
|
|
err = rocker_port_bridge_join(rocker_port, master);
|
|
else if (rocker_port_is_bridged(rocker_port))
|
|
err = rocker_port_bridge_leave(rocker_port);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int rocker_netdevice_event(struct notifier_block *unused,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct net_device *dev;
|
|
int err;
|
|
|
|
switch (event) {
|
|
case NETDEV_CHANGEUPPER:
|
|
dev = netdev_notifier_info_to_dev(ptr);
|
|
if (!rocker_port_dev_check(dev))
|
|
return NOTIFY_DONE;
|
|
err = rocker_port_master_changed(dev);
|
|
if (err)
|
|
netdev_warn(dev,
|
|
"failed to reflect master change (err %d)\n",
|
|
err);
|
|
break;
|
|
}
|
|
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static struct notifier_block rocker_netdevice_nb __read_mostly = {
|
|
.notifier_call = rocker_netdevice_event,
|
|
};
|
|
|
|
/************************************
|
|
* Net event notifier event handler
|
|
************************************/
|
|
|
|
static int rocker_neigh_update(struct net_device *dev, struct neighbour *n)
|
|
{
|
|
struct rocker_port *rocker_port = netdev_priv(dev);
|
|
int flags = (n->nud_state & NUD_VALID) ? 0 : ROCKER_OP_FLAG_REMOVE;
|
|
__be32 ip_addr = *(__be32 *)n->primary_key;
|
|
|
|
return rocker_port_ipv4_neigh(rocker_port, flags, ip_addr, n->ha);
|
|
}
|
|
|
|
static int rocker_netevent_event(struct notifier_block *unused,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct net_device *dev;
|
|
struct neighbour *n = ptr;
|
|
int err;
|
|
|
|
switch (event) {
|
|
case NETEVENT_NEIGH_UPDATE:
|
|
if (n->tbl != &arp_tbl)
|
|
return NOTIFY_DONE;
|
|
dev = n->dev;
|
|
if (!rocker_port_dev_check(dev))
|
|
return NOTIFY_DONE;
|
|
err = rocker_neigh_update(dev, n);
|
|
if (err)
|
|
netdev_warn(dev,
|
|
"failed to handle neigh update (err %d)\n",
|
|
err);
|
|
break;
|
|
}
|
|
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static struct notifier_block rocker_netevent_nb __read_mostly = {
|
|
.notifier_call = rocker_netevent_event,
|
|
};
|
|
|
|
/***********************
|
|
* Module init and exit
|
|
***********************/
|
|
|
|
static int __init rocker_module_init(void)
|
|
{
|
|
int err;
|
|
|
|
register_netdevice_notifier(&rocker_netdevice_nb);
|
|
register_netevent_notifier(&rocker_netevent_nb);
|
|
err = pci_register_driver(&rocker_pci_driver);
|
|
if (err)
|
|
goto err_pci_register_driver;
|
|
return 0;
|
|
|
|
err_pci_register_driver:
|
|
unregister_netdevice_notifier(&rocker_netevent_nb);
|
|
unregister_netdevice_notifier(&rocker_netdevice_nb);
|
|
return err;
|
|
}
|
|
|
|
static void __exit rocker_module_exit(void)
|
|
{
|
|
unregister_netevent_notifier(&rocker_netevent_nb);
|
|
unregister_netdevice_notifier(&rocker_netdevice_nb);
|
|
pci_unregister_driver(&rocker_pci_driver);
|
|
}
|
|
|
|
module_init(rocker_module_init);
|
|
module_exit(rocker_module_exit);
|
|
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
|
|
MODULE_AUTHOR("Scott Feldman <sfeldma@gmail.com>");
|
|
MODULE_DESCRIPTION("Rocker switch device driver");
|
|
MODULE_DEVICE_TABLE(pci, rocker_pci_id_table);
|