Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 330 insertions, 0 deletions

diff --git a/drivers/infiniband/ulp/opa_vnic/opa_vnic_internal.h b/drivers/infiniband/ulp/opa_vnic/opa_vnic_internal.h
new file mode 100644
index 000000000..43ac61ffe
--- /dev/null
+++ b/drivers/infiniband/ulp/opa_vnic/opa_vnic_internal.h
@@ -0,0 +1,330 @@
+#ifndef _OPA_VNIC_INTERNAL_H
+#define _OPA_VNIC_INTERNAL_H
+/*
+ * Copyright(c) 2017 Intel Corporation.
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  - Neither the name of Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/*
+ * This file contains OPA VNIC driver internal declarations
+ */
+
+#include <linux/bitops.h>
+#include <linux/etherdevice.h>
+#include <linux/hashtable.h>
+#include <linux/sizes.h>
+#include <rdma/opa_vnic.h>
+
+#include "opa_vnic_encap.h"
+
+#define OPA_VNIC_VLAN_PCP(vlan_tci)  \
+			(((vlan_tci) & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT)
+
+/* Flow to default port redirection table size */
+#define OPA_VNIC_FLOW_TBL_SIZE    32
+
+/* Invalid port number */
+#define OPA_VNIC_INVALID_PORT     0xff
+
+struct opa_vnic_adapter;
+
+/**
+ * struct __opa_vesw_info - OPA vnic virtual switch info
+ *
+ * Same as opa_vesw_info without bitwise attribute.
+ */
+struct __opa_vesw_info {
+	u16  fabric_id;
+	u16  vesw_id;
+
+	u8   rsvd0[6];
+	u16  def_port_mask;
+
+	u8   rsvd1[2];
+	u16  pkey;
+
+	u8   rsvd2[4];
+	u32  u_mcast_dlid;
+	u32  u_ucast_dlid[OPA_VESW_MAX_NUM_DEF_PORT];
+
+	u32  rc;
+
+	u8   rsvd3[56];
+	u16  eth_mtu;
+	u8   rsvd4[2];
+} __packed;
+
+/**
+ * struct __opa_per_veswport_info - OPA vnic per port info
+ *
+ * Same as opa_per_veswport_info without bitwise attribute.
+ */
+struct __opa_per_veswport_info {
+	u32  port_num;
+
+	u8   eth_link_status;
+	u8   rsvd0[3];
+
+	u8   base_mac_addr[ETH_ALEN];
+	u8   config_state;
+	u8   oper_state;
+
+	u16  max_mac_tbl_ent;
+	u16  max_smac_ent;
+	u32  mac_tbl_digest;
+	u8   rsvd1[4];
+
+	u32  encap_slid;
+
+	u8   pcp_to_sc_uc[OPA_VNIC_MAX_NUM_PCP];
+	u8   pcp_to_vl_uc[OPA_VNIC_MAX_NUM_PCP];
+	u8   pcp_to_sc_mc[OPA_VNIC_MAX_NUM_PCP];
+	u8   pcp_to_vl_mc[OPA_VNIC_MAX_NUM_PCP];
+
+	u8   non_vlan_sc_uc;
+	u8   non_vlan_vl_uc;
+	u8   non_vlan_sc_mc;
+	u8   non_vlan_vl_mc;
+
+	u8   rsvd2[48];
+
+	u16  uc_macs_gen_count;
+	u16  mc_macs_gen_count;
+
+	u8   rsvd3[8];
+} __packed;
+
+/**
+ * struct __opa_veswport_info - OPA vnic port info
+ *
+ * Same as opa_veswport_info without bitwise attribute.
+ */
+struct __opa_veswport_info {
+	struct __opa_vesw_info            vesw;
+	struct __opa_per_veswport_info    vport;
+};
+
+/**
+ * struct __opa_veswport_trap - OPA vnic trap info
+ *
+ * Same as opa_veswport_trap without bitwise attribute.
+ */
+struct __opa_veswport_trap {
+	u16	fabric_id;
+	u16	veswid;
+	u32	veswportnum;
+	u16	opaportnum;
+	u8	veswportindex;
+	u8	opcode;
+	u32	reserved;
+} __packed;
+
+/**
+ * struct opa_vnic_ctrl_port - OPA virtual NIC control port
+ * @ibdev: pointer to ib device
+ * @ops: opa vnic control operations
+ * @num_ports: number of opa ports
+ */
+struct opa_vnic_ctrl_port {
+	struct ib_device           *ibdev;
+	struct opa_vnic_ctrl_ops   *ops;
+	u8                          num_ports;
+};
+
+/**
+ * struct opa_vnic_adapter - OPA VNIC netdev private data structure
+ * @netdev: pointer to associated netdev
+ * @ibdev: ib device
+ * @cport: pointer to opa vnic control port
+ * @rn_ops: rdma netdev's net_device_ops
+ * @port_num: OPA port number
+ * @vport_num: vesw port number
+ * @lock: adapter lock
+ * @info: virtual ethernet switch port information
+ * @vema_mac_addr: mac address configured by vema
+ * @umac_hash: unicast maclist hash
+ * @mmac_hash: multicast maclist hash
+ * @mactbl: hash table of MAC entries
+ * @mactbl_lock: mac table lock
+ * @stats_lock: statistics lock
+ * @flow_tbl: flow to default port redirection table
+ * @trap_timeout: trap timeout
+ * @trap_count: no. of traps allowed within timeout period
+ */
+struct opa_vnic_adapter {
+	struct net_device             *netdev;
+	struct ib_device              *ibdev;
+	struct opa_vnic_ctrl_port     *cport;
+	const struct net_device_ops   *rn_ops;
+
+	u8 port_num;
+	u8 vport_num;
+
+	/* Lock used around concurrent updates to netdev */
+	struct mutex lock;
+
+	struct __opa_veswport_info  info;
+	u8                          vema_mac_addr[ETH_ALEN];
+	u32                         umac_hash;
+	u32                         mmac_hash;
+	struct hlist_head  __rcu   *mactbl;
+
+	/* Lock used to protect updates to mac table */
+	struct mutex mactbl_lock;
+
+	/* Lock used to protect access to vnic counters */
+	spinlock_t stats_lock;
+
+	u8 flow_tbl[OPA_VNIC_FLOW_TBL_SIZE];
+
+	unsigned long trap_timeout;
+	u8            trap_count;
+};
+
+/* Same as opa_veswport_mactable_entry, but without bitwise attribute */
+struct __opa_vnic_mactable_entry {
+	u8  mac_addr[ETH_ALEN];
+	u8  mac_addr_mask[ETH_ALEN];
+	u32 dlid_sd;
+} __packed;
+
+/**
+ * struct opa_vnic_mac_tbl_node - OPA VNIC mac table node
+ * @hlist: hash list handle
+ * @index: index of entry in the mac table
+ * @entry: entry in the table
+ */
+struct opa_vnic_mac_tbl_node {
+	struct hlist_node                    hlist;
+	u16                                  index;
+	struct __opa_vnic_mactable_entry     entry;
+};
+
+#define v_dbg(format, arg...) \
+	netdev_dbg(adapter->netdev, format, ## arg)
+#define v_err(format, arg...) \
+	netdev_err(adapter->netdev, format, ## arg)
+#define v_info(format, arg...) \
+	netdev_info(adapter->netdev, format, ## arg)
+#define v_warn(format, arg...) \
+	netdev_warn(adapter->netdev, format, ## arg)
+
+#define c_err(format, arg...) \
+	dev_err(&cport->ibdev->dev, format, ## arg)
+#define c_info(format, arg...) \
+	dev_info(&cport->ibdev->dev, format, ## arg)
+#define c_dbg(format, arg...) \
+	dev_dbg(&cport->ibdev->dev, format, ## arg)
+
+/* The maximum allowed entries in the mac table */
+#define OPA_VNIC_MAC_TBL_MAX_ENTRIES  2048
+/* Limit of smac entries in mac table */
+#define OPA_VNIC_MAX_SMAC_LIMIT       256
+
+/* The last octet of the MAC address is used as the key to the hash table */
+#define OPA_VNIC_MAC_HASH_IDX         5
+
+/* The VNIC MAC hash table is of size 2^8 */
+#define OPA_VNIC_MAC_TBL_HASH_BITS    8
+#define OPA_VNIC_MAC_TBL_SIZE  BIT(OPA_VNIC_MAC_TBL_HASH_BITS)
+
+/* VNIC HASH MACROS */
+#define vnic_hash_init(hashtable) __hash_init(hashtable, OPA_VNIC_MAC_TBL_SIZE)
+
+#define vnic_hash_add(hashtable, node, key)                                   \
+	hlist_add_head(node,                                                  \
+		&hashtable[hash_min(key, ilog2(OPA_VNIC_MAC_TBL_SIZE))])
+
+#define vnic_hash_for_each_safe(name, bkt, tmp, obj, member)                  \
+	for ((bkt) = 0, obj = NULL;                                           \
+		    !obj && (bkt) < OPA_VNIC_MAC_TBL_SIZE; (bkt)++)           \
+		hlist_for_each_entry_safe(obj, tmp, &name[bkt], member)
+
+#define vnic_hash_for_each_possible(name, obj, member, key)                   \
+	hlist_for_each_entry(obj,                                             \
+		&name[hash_min(key, ilog2(OPA_VNIC_MAC_TBL_SIZE))], member)
+
+#define vnic_hash_for_each(name, bkt, obj, member)                            \
+	for ((bkt) = 0, obj = NULL;                                           \
+		    !obj && (bkt) < OPA_VNIC_MAC_TBL_SIZE; (bkt)++)           \
+		hlist_for_each_entry(obj, &name[bkt], member)
+
+extern char opa_vnic_driver_name[];
+extern const char opa_vnic_driver_version[];
+
+struct opa_vnic_adapter *opa_vnic_add_netdev(struct ib_device *ibdev,
+					     u8 port_num, u8 vport_num);
+void opa_vnic_rem_netdev(struct opa_vnic_adapter *adapter);
+void opa_vnic_encap_skb(struct opa_vnic_adapter *adapter, struct sk_buff *skb);
+u8 opa_vnic_get_vl(struct opa_vnic_adapter *adapter, struct sk_buff *skb);
+u8 opa_vnic_calc_entropy(struct sk_buff *skb);
+void opa_vnic_process_vema_config(struct opa_vnic_adapter *adapter);
+void opa_vnic_release_mac_tbl(struct opa_vnic_adapter *adapter);
+void opa_vnic_query_mac_tbl(struct opa_vnic_adapter *adapter,
+			    struct opa_veswport_mactable *tbl);
+int opa_vnic_update_mac_tbl(struct opa_vnic_adapter *adapter,
+			    struct opa_veswport_mactable *tbl);
+void opa_vnic_query_ucast_macs(struct opa_vnic_adapter *adapter,
+			       struct opa_veswport_iface_macs *macs);
+void opa_vnic_query_mcast_macs(struct opa_vnic_adapter *adapter,
+			       struct opa_veswport_iface_macs *macs);
+void opa_vnic_get_summary_counters(struct opa_vnic_adapter *adapter,
+				   struct opa_veswport_summary_counters *cntrs);
+void opa_vnic_get_error_counters(struct opa_vnic_adapter *adapter,
+				 struct opa_veswport_error_counters *cntrs);
+void opa_vnic_get_vesw_info(struct opa_vnic_adapter *adapter,
+			    struct opa_vesw_info *info);
+void opa_vnic_set_vesw_info(struct opa_vnic_adapter *adapter,
+			    struct opa_vesw_info *info);
+void opa_vnic_get_per_veswport_info(struct opa_vnic_adapter *adapter,
+				    struct opa_per_veswport_info *info);
+void opa_vnic_set_per_veswport_info(struct opa_vnic_adapter *adapter,
+				    struct opa_per_veswport_info *info);
+void opa_vnic_vema_report_event(struct opa_vnic_adapter *adapter, u8 event);
+void opa_vnic_set_ethtool_ops(struct net_device *netdev);
+void opa_vnic_vema_send_trap(struct opa_vnic_adapter *adapter,
+			     struct __opa_veswport_trap *data, u32 lid);
+
+#endif /* _OPA_VNIC_INTERNAL_H */