#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/spinlock.h>
+#include <linux/hashtable.h>
#include <linux/crc32.h>
#include <linux/sort.h>
#include <linux/random.h>
#include <linux/ethtool.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
+#include <linux/bitops.h>
#include <net/switchdev.h>
#include <net/rtnetlink.h>
#include <asm-generic/io-64-nonatomic-lo-hi.h>
{0, }
};
+struct rocker_flow_tbl_key {
+ u32 priority;
+ enum rocker_of_dpa_table_id tbl_id;
+ union {
+ struct {
+ u32 in_lport;
+ u32 in_lport_mask;
+ enum rocker_of_dpa_table_id goto_tbl;
+ } ig_port;
+ struct {
+ u32 in_lport;
+ __be16 vlan_id;
+ __be16 vlan_id_mask;
+ enum rocker_of_dpa_table_id goto_tbl;
+ bool untagged;
+ __be16 new_vlan_id;
+ } vlan;
+ struct {
+ u32 in_lport;
+ u32 in_lport_mask;
+ __be16 eth_type;
+ u8 eth_dst[ETH_ALEN];
+ u8 eth_dst_mask[ETH_ALEN];
+ __be16 vlan_id;
+ __be16 vlan_id_mask;
+ enum rocker_of_dpa_table_id goto_tbl;
+ bool copy_to_cpu;
+ } term_mac;
+ struct {
+ __be16 eth_type;
+ __be32 dst4;
+ __be32 dst4_mask;
+ enum rocker_of_dpa_table_id goto_tbl;
+ u32 group_id;
+ } ucast_routing;
+ struct {
+ u8 eth_dst[ETH_ALEN];
+ u8 eth_dst_mask[ETH_ALEN];
+ int has_eth_dst;
+ int has_eth_dst_mask;
+ __be16 vlan_id;
+ u32 tunnel_id;
+ enum rocker_of_dpa_table_id goto_tbl;
+ u32 group_id;
+ bool copy_to_cpu;
+ } bridge;
+ struct {
+ u32 in_lport;
+ u32 in_lport_mask;
+ u8 eth_src[ETH_ALEN];
+ u8 eth_src_mask[ETH_ALEN];
+ u8 eth_dst[ETH_ALEN];
+ u8 eth_dst_mask[ETH_ALEN];
+ __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;
+ } acl;
+ };
+};
+
+struct rocker_flow_tbl_entry {
+ struct hlist_node entry;
+ u32 ref_count;
+ u64 cookie;
+ struct rocker_flow_tbl_key key;
+ u32 key_crc32; /* key */
+};
+
+struct rocker_group_tbl_entry {
+ struct hlist_node entry;
+ u32 cmd;
+ u32 group_id; /* key */
+ u16 group_count;
+ u32 *group_ids;
+ union {
+ struct {
+ u8 pop_vlan;
+ } l2_interface;
+ struct {
+ u8 eth_src[ETH_ALEN];
+ u8 eth_dst[ETH_ALEN];
+ __be16 vlan_id;
+ u32 group_id;
+ } l2_rewrite;
+ struct {
+ u8 eth_src[ETH_ALEN];
+ u8 eth_dst[ETH_ALEN];
+ __be16 vlan_id;
+ bool ttl_check;
+ u32 group_id;
+ } l3_unicast;
+ };
+};
+
+struct rocker_fdb_tbl_entry {
+ struct hlist_node entry;
+ u32 key_crc32; /* key */
+ bool learned;
+ struct rocker_fdb_tbl_key {
+ u32 lport;
+ u8 addr[ETH_ALEN];
+ __be16 vlan_id;
+ } key;
+};
+
+struct rocker_internal_vlan_tbl_entry {
+ struct hlist_node entry;
+ int ifindex; /* key */
+ u32 ref_count;
+ __be16 vlan_id;
+};
+
struct rocker_desc_info {
char *data; /* mapped */
size_t data_size;
struct rocker;
+enum {
+ ROCKER_CTRL_LINK_LOCAL_MCAST,
+ ROCKER_CTRL_LOCAL_ARP,
+ ROCKER_CTRL_IPV4_MCAST,
+ ROCKER_CTRL_IPV6_MCAST,
+ ROCKER_CTRL_DFLT_BRIDGING,
+ ROCKER_CTRL_MAX,
+};
+
+#define ROCKER_INTERNAL_VLAN_ID_BASE 0x0f00
+#define ROCKER_N_INTERNAL_VLANS 255
+#define ROCKER_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID)
+#define ROCKER_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(ROCKER_N_INTERNAL_VLANS)
+
struct rocker_port {
struct net_device *dev;
struct rocker *rocker;
unsigned int port_number;
u32 lport;
+ __be16 internal_vlan_id;
+ bool ctrls[ROCKER_CTRL_MAX];
+ unsigned long vlan_bitmap[ROCKER_VLAN_BITMAP_LEN];
struct napi_struct napi_tx;
struct napi_struct napi_rx;
struct rocker_dma_ring_info tx_ring;
spinlock_t cmd_ring_lock;
struct rocker_dma_ring_info cmd_ring;
struct rocker_dma_ring_info event_ring;
+ DECLARE_HASHTABLE(flow_tbl, 16);
+ spinlock_t flow_tbl_lock;
+ u64 flow_tbl_next_cookie;
+ DECLARE_HASHTABLE(group_tbl, 16);
+ spinlock_t group_tbl_lock;
+ DECLARE_HASHTABLE(fdb_tbl, 16);
+ spinlock_t fdb_tbl_lock;
+ unsigned long internal_vlan_bitmap[ROCKER_INTERNAL_VLAN_BITMAP_LEN];
+ DECLARE_HASHTABLE(internal_vlan_tbl, 8);
+ spinlock_t internal_vlan_tbl_lock;
+};
+
+static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
+static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 };
+static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
+static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 };
+static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 };
+static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 };
+static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
+
+/* Rocker priority levels for flow table entries. Higher
+ * priority match takes precedence over lower priority match.
+ */
+
+enum {
+ ROCKER_PRIORITY_UNKNOWN = 0,
+ ROCKER_PRIORITY_IG_PORT = 1,
+ ROCKER_PRIORITY_VLAN = 1,
+ ROCKER_PRIORITY_TERM_MAC_UCAST = 0,
+ ROCKER_PRIORITY_TERM_MAC_MCAST = 1,
+ ROCKER_PRIORITY_UNICAST_ROUTING = 1,
+ ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1,
+ ROCKER_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2,
+ ROCKER_PRIORITY_BRIDGING_VLAN = 3,
+ ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1,
+ ROCKER_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2,
+ ROCKER_PRIORITY_BRIDGING_TENANT = 3,
+ ROCKER_PRIORITY_ACL_CTRL = 3,
+ ROCKER_PRIORITY_ACL_NORMAL = 2,
+ ROCKER_PRIORITY_ACL_DFLT = 1,
};
+static bool rocker_vlan_id_is_internal(__be16 vlan_id)
+{
+ u16 start = ROCKER_INTERNAL_VLAN_ID_BASE;
+ u16 end = 0xffe;
+ u16 _vlan_id = ntohs(vlan_id);
+
+ return (_vlan_id >= start && _vlan_id <= end);
+}
+
+static __be16 rocker_port_vid_to_vlan(struct rocker_port *rocker_port,
+ u16 vid, bool *pop_vlan)
+{
+ __be16 vlan_id;
+
+ if (pop_vlan)
+ *pop_vlan = false;
+ vlan_id = htons(vid);
+ if (!vlan_id) {
+ vlan_id = rocker_port->internal_vlan_id;
+ if (pop_vlan)
+ *pop_vlan = true;
+ }
+
+ return vlan_id;
+}
+
struct rocker_wait {
wait_queue_head_t wait;
bool done;
return 0;
}
+#define ROCKER_OP_FLAG_REMOVE BIT(0)
+#define ROCKER_OP_FLAG_NOWAIT BIT(1)
+#define ROCKER_OP_FLAG_LEARNED BIT(2)
+
static int rocker_event_process(struct rocker *rocker,
struct rocker_desc_info *desc_info)
{
macaddr, 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_LPORT,
+ entry->key.ig_port.in_lport))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT_MASK,
+ entry->key.ig_port.in_lport_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_LPORT,
+ entry->key.vlan.in_lport))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
+ entry->key.vlan.vlan_id))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u16(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_u16(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_LPORT,
+ entry->key.term_mac.in_lport))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT_MASK,
+ entry->key.term_mac.in_lport_mask))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u16(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_u16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
+ entry->key.term_mac.vlan_id))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u16(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_u16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
+ entry->key.ucast_routing.eth_type))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_DST_IP,
+ entry->key.ucast_routing.dst4))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u32(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_u16(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_LPORT,
+ entry->key.acl.in_lport))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_LPORT_MASK,
+ entry->key.acl.in_lport_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_u16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE,
+ entry->key.acl.eth_type))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID,
+ entry->key.acl.vlan_id))
+ return -EMSGSIZE;
+ if (rocker_tlv_put_u16(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,
+ ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD))
+ 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,
+ ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL))
+ 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_LPORT,
+ 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_u16(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_u16(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 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);
+
+ 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 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);
+}
+
+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;
+
+ hash_for_each_possible(rocker->flow_tbl, found,
+ entry, match->key_crc32) {
+ if (memcmp(&found->key, &match->key, sizeof(found->key)) == 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;
+ unsigned long flags;
+ bool add_to_hw = false;
+ int err = 0;
+
+ match->key_crc32 = crc32(~0, &match->key, sizeof(match->key));
+
+ spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
+
+ found = rocker_flow_tbl_find(rocker, match);
+
+ if (found) {
+ kfree(match);
+ } else {
+ found = match;
+ found->cookie = rocker->flow_tbl_next_cookie++;
+ hash_add(rocker->flow_tbl, &found->entry, found->key_crc32);
+ add_to_hw = true;
+ }
+
+ found->ref_count++;
+
+ spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
+
+ if (add_to_hw) {
+ err = rocker_cmd_exec(rocker, rocker_port,
+ rocker_cmd_flow_tbl_add,
+ found, NULL, NULL, nowait);
+ if (err) {
+ spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
+ hash_del(&found->entry);
+ spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
+ kfree(found);
+ }
+ }
+
+ return err;
+}
+
+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;
+ unsigned long flags;
+ bool del_from_hw = false;
+ int err = 0;
+
+ match->key_crc32 = crc32(~0, &match->key, sizeof(match->key));
+
+ spin_lock_irqsave(&rocker->flow_tbl_lock, flags);
+
+ found = rocker_flow_tbl_find(rocker, match);
+
+ if (found) {
+ found->ref_count--;
+ if (found->ref_count == 0) {
+ hash_del(&found->entry);
+ del_from_hw = true;
+ }
+ }
+
+ spin_unlock_irqrestore(&rocker->flow_tbl_lock, flags);
+
+ kfree(match);
+
+ if (del_from_hw) {
+ 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_lport, u32 in_lport_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_lport = in_lport;
+ entry->key.ig_port.in_lport_mask = in_lport_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_lport,
+ __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_lport = in_lport;
+ 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_lport, u32 in_lport_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_lport = in_lport;
+ entry->key.term_mac.in_lport_mask = in_lport_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_acl(struct rocker_port *rocker_port,
+ int flags, u32 in_lport,
+ u32 in_lport_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_lport = in_lport;
+ entry->key.acl.in_lport_mask = in_lport_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;
+ int err = 0;
+
+ 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);
+
+ if (found->cmd)
+ err = rocker_cmd_exec(rocker, rocker_port,
+ rocker_cmd_group_tbl_add,
+ found, NULL, NULL, nowait);
+
+ return err;
+}
+
+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_lport, 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_lport);
+ 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 struct rocker_ctrl {
+ const u8 *eth_dst;
+ const u8 *eth_dst_mask;
+ u16 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_lport = rocker_port->lport;
+ u32 in_lport_mask = 0xffffffff;
+ u32 out_lport = 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_lport);
+ int err;
+
+ err = rocker_flow_tbl_acl(rocker_port, flags,
+ in_lport, in_lport_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_term(struct rocker_port *rocker_port,
+ int flags, struct rocker_ctrl *ctrl,
+ __be16 vlan_id)
+{
+ u32 in_lport_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->lport, in_lport_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->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_ig_tbl(struct rocker_port *rocker_port, int flags)
+{
+ enum rocker_of_dpa_table_id goto_tbl;
+ u32 in_lport;
+ u32 in_lport_mask;
+ int err;
+
+ /* Normal Ethernet Frames. Matches pkts from any local physical
+ * ports. Goto VLAN tbl.
+ */
+
+ in_lport = 0;
+ in_lport_mask = 0xffff0000;
+ goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN;
+
+ err = rocker_flow_tbl_ig_port(rocker_port, flags,
+ in_lport, in_lport_mask,
+ goto_tbl);
+ if (err)
+ netdev_err(rocker_port->dev,
+ "Error (%d) ingress port table entry\n", err);
+
+ return err;
+}
+
+static int rocker_port_router_mac(struct rocker_port *rocker_port,
+ int flags, __be16 vlan_id)
+{
+ u32 in_lport_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->lport, in_lport_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->lport, in_lport_mask,
+ eth_type, rocker_port->dev->dev_addr,
+ dst_mac_mask, vlan_id, vlan_id_mask,
+ copy_to_cpu, flags);
+
+ return err;
+}
+
+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);
+}
+
/*****************
* Net device ops
*****************/
static void rocker_remove_ports(struct rocker *rocker)
{
+ struct rocker_port *rocker_port;
int i;
- for (i = 0; i < rocker->port_count; i++)
- unregister_netdev(rocker->ports[i]->dev);
+ 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);
}
}
rocker->ports[port_number] = 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;
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");
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);
{
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);
projects / platform / kernel / linux-exynos.git / commitdiff