832 lines
22 KiB
C
832 lines
22 KiB
C
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/*
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* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2004 Voltaire, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _IPOIB_H
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#define _IPOIB_H
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#include <linux/list.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/workqueue.h>
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#include <linux/kref.h>
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#include <linux/if_infiniband.h>
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#include <linux/mutex.h>
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#include <net/neighbour.h>
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#include <net/sch_generic.h>
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#include <linux/atomic.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_pack.h>
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#include <rdma/ib_sa.h>
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#include <linux/sched.h>
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/* constants */
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enum ipoib_flush_level {
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IPOIB_FLUSH_LIGHT,
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IPOIB_FLUSH_NORMAL,
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IPOIB_FLUSH_HEAVY
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};
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enum {
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IPOIB_ENCAP_LEN = 4,
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IPOIB_PSEUDO_LEN = 20,
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IPOIB_HARD_LEN = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN,
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IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
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IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
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IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
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IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
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IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
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IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
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IPOIB_RX_RING_SIZE = 256,
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IPOIB_TX_RING_SIZE = 128,
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IPOIB_MAX_QUEUE_SIZE = 8192,
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IPOIB_MIN_QUEUE_SIZE = 2,
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IPOIB_CM_MAX_CONN_QP = 4096,
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IPOIB_NUM_WC = 4,
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IPOIB_MAX_PATH_REC_QUEUE = 3,
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IPOIB_MAX_MCAST_QUEUE = 64,
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IPOIB_FLAG_OPER_UP = 0,
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IPOIB_FLAG_INITIALIZED = 1,
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IPOIB_FLAG_ADMIN_UP = 2,
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IPOIB_PKEY_ASSIGNED = 3,
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IPOIB_FLAG_SUBINTERFACE = 5,
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IPOIB_STOP_REAPER = 7,
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IPOIB_FLAG_ADMIN_CM = 9,
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IPOIB_FLAG_UMCAST = 10,
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IPOIB_STOP_NEIGH_GC = 11,
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IPOIB_NEIGH_TBL_FLUSH = 12,
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IPOIB_FLAG_DEV_ADDR_SET = 13,
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IPOIB_FLAG_DEV_ADDR_CTRL = 14,
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IPOIB_FLAG_GOING_DOWN = 15,
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IPOIB_MAX_BACKOFF_SECONDS = 16,
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IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
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IPOIB_MCAST_FLAG_SENDONLY = 1,
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/*
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* For IPOIB_MCAST_FLAG_BUSY
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* When set, in flight join and mcast->mc is unreliable
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* When clear and mcast->mc IS_ERR_OR_NULL, need to restart or
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* haven't started yet
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* When clear and mcast->mc is valid pointer, join was successful
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*/
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IPOIB_MCAST_FLAG_BUSY = 2,
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IPOIB_MCAST_FLAG_ATTACHED = 3,
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MAX_SEND_CQE = 16,
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IPOIB_CM_COPYBREAK = 256,
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IPOIB_NON_CHILD = 0,
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IPOIB_LEGACY_CHILD = 1,
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IPOIB_RTNL_CHILD = 2,
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};
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#define IPOIB_OP_RECV (1ul << 31)
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#ifdef CONFIG_INFINIBAND_IPOIB_CM
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#define IPOIB_OP_CM (1ul << 30)
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#else
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#define IPOIB_OP_CM (0)
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#endif
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#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
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/* structs */
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struct ipoib_header {
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__be16 proto;
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u16 reserved;
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};
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struct ipoib_pseudo_header {
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u8 hwaddr[INFINIBAND_ALEN];
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};
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static inline void skb_add_pseudo_hdr(struct sk_buff *skb)
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{
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char *data = skb_push(skb, IPOIB_PSEUDO_LEN);
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/*
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* only the ipoib header is present now, make room for a dummy
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* pseudo header and set skb field accordingly
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*/
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memset(data, 0, IPOIB_PSEUDO_LEN);
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skb_reset_mac_header(skb);
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skb_pull(skb, IPOIB_HARD_LEN);
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}
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/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
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struct ipoib_mcast {
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struct ib_sa_mcmember_rec mcmember;
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struct ib_sa_multicast *mc;
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struct ipoib_ah *ah;
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struct rb_node rb_node;
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struct list_head list;
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unsigned long created;
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unsigned long backoff;
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unsigned long delay_until;
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unsigned long flags;
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unsigned char logcount;
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struct list_head neigh_list;
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struct sk_buff_head pkt_queue;
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struct net_device *dev;
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struct completion done;
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};
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struct ipoib_rx_buf {
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struct sk_buff *skb;
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u64 mapping[IPOIB_UD_RX_SG];
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};
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struct ipoib_tx_buf {
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struct sk_buff *skb;
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u64 mapping[MAX_SKB_FRAGS + 1];
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};
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struct ipoib_cm_tx_buf {
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struct sk_buff *skb;
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u64 mapping;
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};
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struct ib_cm_id;
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struct ipoib_cm_data {
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__be32 qpn; /* High byte MUST be ignored on receive */
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__be32 mtu;
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};
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/*
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* Quoting 10.3.1 Queue Pair and EE Context States:
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*
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* Note, for QPs that are associated with an SRQ, the Consumer should take the
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* QP through the Error State before invoking a Destroy QP or a Modify QP to the
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* Reset State. The Consumer may invoke the Destroy QP without first performing
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* a Modify QP to the Error State and waiting for the Affiliated Asynchronous
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* Last WQE Reached Event. However, if the Consumer does not wait for the
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* Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
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* leakage may occur. Therefore, it is good programming practice to tear down a
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* QP that is associated with an SRQ by using the following process:
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*
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* - Put the QP in the Error State
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* - Wait for the Affiliated Asynchronous Last WQE Reached Event;
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* - either:
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* drain the CQ by invoking the Poll CQ verb and either wait for CQ
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* to be empty or the number of Poll CQ operations has exceeded
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* CQ capacity size;
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* - or
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* post another WR that completes on the same CQ and wait for this
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* WR to return as a WC;
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* - and then invoke a Destroy QP or Reset QP.
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*
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* We use the second option and wait for a completion on the
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* same CQ before destroying QPs attached to our SRQ.
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*/
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enum ipoib_cm_state {
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IPOIB_CM_RX_LIVE,
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IPOIB_CM_RX_ERROR, /* Ignored by stale task */
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IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
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};
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struct ipoib_cm_rx {
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struct ib_cm_id *id;
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struct ib_qp *qp;
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struct ipoib_cm_rx_buf *rx_ring;
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struct list_head list;
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struct net_device *dev;
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unsigned long jiffies;
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enum ipoib_cm_state state;
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int recv_count;
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};
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struct ipoib_cm_tx {
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struct ib_cm_id *id;
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struct ib_qp *qp;
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struct list_head list;
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struct net_device *dev;
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struct ipoib_neigh *neigh;
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struct ipoib_path *path;
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struct ipoib_tx_buf *tx_ring;
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unsigned tx_head;
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unsigned tx_tail;
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unsigned long flags;
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u32 mtu;
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unsigned max_send_sge;
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};
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struct ipoib_cm_rx_buf {
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struct sk_buff *skb;
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u64 mapping[IPOIB_CM_RX_SG];
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};
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struct ipoib_cm_dev_priv {
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struct ib_srq *srq;
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struct ipoib_cm_rx_buf *srq_ring;
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struct ib_cm_id *id;
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struct list_head passive_ids; /* state: LIVE */
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struct list_head rx_error_list; /* state: ERROR */
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struct list_head rx_flush_list; /* state: FLUSH, drain not started */
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struct list_head rx_drain_list; /* state: FLUSH, drain started */
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struct list_head rx_reap_list; /* state: FLUSH, drain done */
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struct work_struct start_task;
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struct work_struct reap_task;
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struct work_struct skb_task;
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struct work_struct rx_reap_task;
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struct delayed_work stale_task;
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struct sk_buff_head skb_queue;
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struct list_head start_list;
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struct list_head reap_list;
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struct ib_wc ibwc[IPOIB_NUM_WC];
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struct ib_sge rx_sge[IPOIB_CM_RX_SG];
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struct ib_recv_wr rx_wr;
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int nonsrq_conn_qp;
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int max_cm_mtu;
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int num_frags;
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};
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struct ipoib_ethtool_st {
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u16 coalesce_usecs;
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u16 max_coalesced_frames;
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};
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struct ipoib_neigh_table;
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struct ipoib_neigh_hash {
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struct ipoib_neigh_table *ntbl;
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struct ipoib_neigh __rcu **buckets;
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struct rcu_head rcu;
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u32 mask;
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u32 size;
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};
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struct ipoib_neigh_table {
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struct ipoib_neigh_hash __rcu *htbl;
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atomic_t entries;
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struct completion flushed;
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struct completion deleted;
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};
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struct ipoib_qp_state_validate {
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struct work_struct work;
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struct ipoib_dev_priv *priv;
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};
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/*
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* Device private locking: network stack tx_lock protects members used
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* in TX fast path, lock protects everything else. lock nests inside
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* of tx_lock (ie tx_lock must be acquired first if needed).
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*/
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struct ipoib_dev_priv {
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spinlock_t lock;
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struct net_device *dev;
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struct napi_struct napi;
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unsigned long flags;
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struct rw_semaphore vlan_rwsem;
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struct rb_root path_tree;
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struct list_head path_list;
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struct ipoib_neigh_table ntbl;
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struct ipoib_mcast *broadcast;
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struct list_head multicast_list;
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struct rb_root multicast_tree;
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struct workqueue_struct *wq;
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struct delayed_work mcast_task;
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struct work_struct carrier_on_task;
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struct work_struct flush_light;
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struct work_struct flush_normal;
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struct work_struct flush_heavy;
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struct work_struct restart_task;
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struct delayed_work ah_reap_task;
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struct delayed_work neigh_reap_task;
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struct ib_device *ca;
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u8 port;
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u16 pkey;
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u16 pkey_index;
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struct ib_pd *pd;
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struct ib_cq *recv_cq;
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struct ib_cq *send_cq;
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struct ib_qp *qp;
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u32 qkey;
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union ib_gid local_gid;
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u16 local_lid;
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unsigned int admin_mtu;
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unsigned int mcast_mtu;
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unsigned int max_ib_mtu;
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struct ipoib_rx_buf *rx_ring;
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|
struct ipoib_tx_buf *tx_ring;
|
||
|
|
unsigned tx_head;
|
||
|
|
unsigned tx_tail;
|
||
|
|
struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
|
||
|
|
struct ib_ud_wr tx_wr;
|
||
|
|
unsigned tx_outstanding;
|
||
|
|
struct ib_wc send_wc[MAX_SEND_CQE];
|
||
|
|
|
||
|
|
struct ib_recv_wr rx_wr;
|
||
|
|
struct ib_sge rx_sge[IPOIB_UD_RX_SG];
|
||
|
|
|
||
|
|
struct ib_wc ibwc[IPOIB_NUM_WC];
|
||
|
|
|
||
|
|
struct list_head dead_ahs;
|
||
|
|
|
||
|
|
struct ib_event_handler event_handler;
|
||
|
|
|
||
|
|
struct net_device *parent;
|
||
|
|
struct list_head child_intfs;
|
||
|
|
struct list_head list;
|
||
|
|
int child_type;
|
||
|
|
|
||
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_CM
|
||
|
|
struct ipoib_cm_dev_priv cm;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
|
||
|
|
struct list_head fs_list;
|
||
|
|
struct dentry *mcg_dentry;
|
||
|
|
struct dentry *path_dentry;
|
||
|
|
#endif
|
||
|
|
u64 hca_caps;
|
||
|
|
struct ipoib_ethtool_st ethtool;
|
||
|
|
struct timer_list poll_timer;
|
||
|
|
unsigned max_send_sge;
|
||
|
|
bool sm_fullmember_sendonly_support;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct ipoib_ah {
|
||
|
|
struct net_device *dev;
|
||
|
|
struct ib_ah *ah;
|
||
|
|
struct list_head list;
|
||
|
|
struct kref ref;
|
||
|
|
unsigned last_send;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct ipoib_path {
|
||
|
|
struct net_device *dev;
|
||
|
|
struct ib_sa_path_rec pathrec;
|
||
|
|
struct ipoib_ah *ah;
|
||
|
|
struct sk_buff_head queue;
|
||
|
|
|
||
|
|
struct list_head neigh_list;
|
||
|
|
|
||
|
|
int query_id;
|
||
|
|
struct ib_sa_query *query;
|
||
|
|
struct completion done;
|
||
|
|
|
||
|
|
struct rb_node rb_node;
|
||
|
|
struct list_head list;
|
||
|
|
int valid;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct ipoib_neigh {
|
||
|
|
struct ipoib_ah *ah;
|
||
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_CM
|
||
|
|
struct ipoib_cm_tx *cm;
|
||
|
|
#endif
|
||
|
|
u8 daddr[INFINIBAND_ALEN];
|
||
|
|
struct sk_buff_head queue;
|
||
|
|
|
||
|
|
struct net_device *dev;
|
||
|
|
|
||
|
|
struct list_head list;
|
||
|
|
struct ipoib_neigh __rcu *hnext;
|
||
|
|
struct rcu_head rcu;
|
||
|
|
atomic_t refcnt;
|
||
|
|
unsigned long alive;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
|
||
|
|
#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
|
||
|
|
|
||
|
|
void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
|
||
|
|
static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
|
||
|
|
{
|
||
|
|
if (atomic_dec_and_test(&neigh->refcnt))
|
||
|
|
ipoib_neigh_dtor(neigh);
|
||
|
|
}
|
||
|
|
struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
|
||
|
|
struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
|
||
|
|
struct net_device *dev);
|
||
|
|
void ipoib_neigh_free(struct ipoib_neigh *neigh);
|
||
|
|
void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
|
||
|
|
|
||
|
|
extern struct workqueue_struct *ipoib_workqueue;
|
||
|
|
|
||
|
|
/* functions */
|
||
|
|
|
||
|
|
int ipoib_poll(struct napi_struct *napi, int budget);
|
||
|
|
void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
|
||
|
|
void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
|
||
|
|
|
||
|
|
struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
|
||
|
|
struct ib_pd *pd, struct ib_ah_attr *attr);
|
||
|
|
void ipoib_free_ah(struct kref *kref);
|
||
|
|
static inline void ipoib_put_ah(struct ipoib_ah *ah)
|
||
|
|
{
|
||
|
|
kref_put(&ah->ref, ipoib_free_ah);
|
||
|
|
}
|
||
|
|
int ipoib_open(struct net_device *dev);
|
||
|
|
int ipoib_add_pkey_attr(struct net_device *dev);
|
||
|
|
int ipoib_add_umcast_attr(struct net_device *dev);
|
||
|
|
|
||
|
|
void ipoib_send(struct net_device *dev, struct sk_buff *skb,
|
||
|
|
struct ipoib_ah *address, u32 qpn);
|
||
|
|
void ipoib_reap_ah(struct work_struct *work);
|
||
|
|
|
||
|
|
struct ipoib_path *__path_find(struct net_device *dev, void *gid);
|
||
|
|
void ipoib_mark_paths_invalid(struct net_device *dev);
|
||
|
|
void ipoib_flush_paths(struct net_device *dev);
|
||
|
|
int ipoib_check_sm_sendonly_fullmember_support(struct ipoib_dev_priv *priv);
|
||
|
|
struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
|
||
|
|
|
||
|
|
int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
|
||
|
|
void ipoib_ib_dev_flush_light(struct work_struct *work);
|
||
|
|
void ipoib_ib_dev_flush_normal(struct work_struct *work);
|
||
|
|
void ipoib_ib_dev_flush_heavy(struct work_struct *work);
|
||
|
|
void ipoib_pkey_event(struct work_struct *work);
|
||
|
|
void ipoib_ib_dev_cleanup(struct net_device *dev);
|
||
|
|
|
||
|
|
int ipoib_ib_dev_open(struct net_device *dev);
|
||
|
|
int ipoib_ib_dev_up(struct net_device *dev);
|
||
|
|
int ipoib_ib_dev_down(struct net_device *dev);
|
||
|
|
int ipoib_ib_dev_stop(struct net_device *dev);
|
||
|
|
void ipoib_pkey_dev_check_presence(struct net_device *dev);
|
||
|
|
|
||
|
|
int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
|
||
|
|
void ipoib_dev_cleanup(struct net_device *dev);
|
||
|
|
|
||
|
|
void ipoib_mcast_join_task(struct work_struct *work);
|
||
|
|
void ipoib_mcast_carrier_on_task(struct work_struct *work);
|
||
|
|
void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
|
||
|
|
|
||
|
|
void ipoib_mcast_restart_task(struct work_struct *work);
|
||
|
|
int ipoib_mcast_start_thread(struct net_device *dev);
|
||
|
|
int ipoib_mcast_stop_thread(struct net_device *dev);
|
||
|
|
|
||
|
|
void ipoib_mcast_dev_down(struct net_device *dev);
|
||
|
|
void ipoib_mcast_dev_flush(struct net_device *dev);
|
||
|
|
|
||
|
|
int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req);
|
||
|
|
void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv,
|
||
|
|
struct ipoib_tx_buf *tx_req);
|
||
|
|
|
||
|
|
static inline void ipoib_build_sge(struct ipoib_dev_priv *priv,
|
||
|
|
struct ipoib_tx_buf *tx_req)
|
||
|
|
{
|
||
|
|
int i, off;
|
||
|
|
struct sk_buff *skb = tx_req->skb;
|
||
|
|
skb_frag_t *frags = skb_shinfo(skb)->frags;
|
||
|
|
int nr_frags = skb_shinfo(skb)->nr_frags;
|
||
|
|
u64 *mapping = tx_req->mapping;
|
||
|
|
|
||
|
|
if (skb_headlen(skb)) {
|
||
|
|
priv->tx_sge[0].addr = mapping[0];
|
||
|
|
priv->tx_sge[0].length = skb_headlen(skb);
|
||
|
|
off = 1;
|
||
|
|
} else
|
||
|
|
off = 0;
|
||
|
|
|
||
|
|
for (i = 0; i < nr_frags; ++i) {
|
||
|
|
priv->tx_sge[i + off].addr = mapping[i + off];
|
||
|
|
priv->tx_sge[i + off].length = skb_frag_size(&frags[i]);
|
||
|
|
}
|
||
|
|
priv->tx_wr.wr.num_sge = nr_frags + off;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
|
||
|
|
struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
|
||
|
|
int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
|
||
|
|
void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
|
||
|
|
union ib_gid *gid,
|
||
|
|
unsigned long *created,
|
||
|
|
unsigned int *queuelen,
|
||
|
|
unsigned int *complete,
|
||
|
|
unsigned int *send_only);
|
||
|
|
|
||
|
|
struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
|
||
|
|
int ipoib_path_iter_next(struct ipoib_path_iter *iter);
|
||
|
|
void ipoib_path_iter_read(struct ipoib_path_iter *iter,
|
||
|
|
struct ipoib_path *path);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
|
||
|
|
union ib_gid *mgid, int set_qkey);
|
||
|
|
void ipoib_mcast_remove_list(struct list_head *remove_list);
|
||
|
|
void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid,
|
||
|
|
struct list_head *remove_list);
|
||
|
|
|
||
|
|
int ipoib_init_qp(struct net_device *dev);
|
||
|
|
int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
|
||
|
|
void ipoib_transport_dev_cleanup(struct net_device *dev);
|
||
|
|
|
||
|
|
void ipoib_event(struct ib_event_handler *handler,
|
||
|
|
struct ib_event *record);
|
||
|
|
|
||
|
|
int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
|
||
|
|
int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
|
||
|
|
|
||
|
|
int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
|
||
|
|
u16 pkey, int child_type);
|
||
|
|
|
||
|
|
int __init ipoib_netlink_init(void);
|
||
|
|
void __exit ipoib_netlink_fini(void);
|
||
|
|
|
||
|
|
void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
|
||
|
|
int ipoib_set_mode(struct net_device *dev, const char *buf);
|
||
|
|
|
||
|
|
void ipoib_setup(struct net_device *dev);
|
||
|
|
|
||
|
|
void ipoib_pkey_open(struct ipoib_dev_priv *priv);
|
||
|
|
void ipoib_drain_cq(struct net_device *dev);
|
||
|
|
|
||
|
|
void ipoib_set_ethtool_ops(struct net_device *dev);
|
||
|
|
int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
|
||
|
|
|
||
|
|
#define IPOIB_FLAGS_RC 0x80
|
||
|
|
#define IPOIB_FLAGS_UC 0x40
|
||
|
|
|
||
|
|
/* We don't support UC connections at the moment */
|
||
|
|
#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
|
||
|
|
|
||
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_CM
|
||
|
|
|
||
|
|
extern int ipoib_max_conn_qp;
|
||
|
|
|
||
|
|
static inline int ipoib_cm_admin_enabled(struct net_device *dev)
|
||
|
|
{
|
||
|
|
struct ipoib_dev_priv *priv = netdev_priv(dev);
|
||
|
|
return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
|
||
|
|
test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
|
||
|
|
{
|
||
|
|
struct ipoib_dev_priv *priv = netdev_priv(dev);
|
||
|
|
return IPOIB_CM_SUPPORTED(hwaddr) &&
|
||
|
|
test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
|
||
|
|
|
||
|
|
{
|
||
|
|
return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
|
||
|
|
{
|
||
|
|
return neigh->cm;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
|
||
|
|
{
|
||
|
|
neigh->cm = tx;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int ipoib_cm_has_srq(struct net_device *dev)
|
||
|
|
{
|
||
|
|
struct ipoib_dev_priv *priv = netdev_priv(dev);
|
||
|
|
return !!priv->cm.srq;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
|
||
|
|
{
|
||
|
|
struct ipoib_dev_priv *priv = netdev_priv(dev);
|
||
|
|
return priv->cm.max_cm_mtu;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
|
||
|
|
int ipoib_cm_dev_open(struct net_device *dev);
|
||
|
|
void ipoib_cm_dev_stop(struct net_device *dev);
|
||
|
|
int ipoib_cm_dev_init(struct net_device *dev);
|
||
|
|
int ipoib_cm_add_mode_attr(struct net_device *dev);
|
||
|
|
void ipoib_cm_dev_cleanup(struct net_device *dev);
|
||
|
|
struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
|
||
|
|
struct ipoib_neigh *neigh);
|
||
|
|
void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
|
||
|
|
void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
|
||
|
|
unsigned int mtu);
|
||
|
|
void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
|
||
|
|
void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
|
||
|
|
#else
|
||
|
|
|
||
|
|
struct ipoib_cm_tx;
|
||
|
|
|
||
|
|
#define ipoib_max_conn_qp 0
|
||
|
|
|
||
|
|
static inline int ipoib_cm_admin_enabled(struct net_device *dev)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
|
||
|
|
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
|
||
|
|
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
|
||
|
|
{
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int ipoib_cm_has_srq(struct net_device *dev)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline
|
||
|
|
void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline
|
||
|
|
int ipoib_cm_dev_open(struct net_device *dev)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline
|
||
|
|
void ipoib_cm_dev_stop(struct net_device *dev)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline
|
||
|
|
int ipoib_cm_dev_init(struct net_device *dev)
|
||
|
|
{
|
||
|
|
return -ENOSYS;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline
|
||
|
|
void ipoib_cm_dev_cleanup(struct net_device *dev)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline
|
||
|
|
struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
|
||
|
|
struct ipoib_neigh *neigh)
|
||
|
|
{
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline
|
||
|
|
void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline
|
||
|
|
int ipoib_cm_add_mode_attr(struct net_device *dev)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
|
||
|
|
unsigned int mtu)
|
||
|
|
{
|
||
|
|
dev_kfree_skb_any(skb);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
|
||
|
|
void ipoib_create_debug_files(struct net_device *dev);
|
||
|
|
void ipoib_delete_debug_files(struct net_device *dev);
|
||
|
|
int ipoib_register_debugfs(void);
|
||
|
|
void ipoib_unregister_debugfs(void);
|
||
|
|
#else
|
||
|
|
static inline void ipoib_create_debug_files(struct net_device *dev) { }
|
||
|
|
static inline void ipoib_delete_debug_files(struct net_device *dev) { }
|
||
|
|
static inline int ipoib_register_debugfs(void) { return 0; }
|
||
|
|
static inline void ipoib_unregister_debugfs(void) { }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define ipoib_printk(level, priv, format, arg...) \
|
||
|
|
printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
|
||
|
|
#define ipoib_warn(priv, format, arg...) \
|
||
|
|
do { \
|
||
|
|
static DEFINE_RATELIMIT_STATE(_rs, \
|
||
|
|
10 * HZ /*10 seconds */, \
|
||
|
|
100); \
|
||
|
|
if (__ratelimit(&_rs)) \
|
||
|
|
ipoib_printk(KERN_WARNING, priv, format , ## arg);\
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
extern int ipoib_sendq_size;
|
||
|
|
extern int ipoib_recvq_size;
|
||
|
|
|
||
|
|
extern struct ib_sa_client ipoib_sa_client;
|
||
|
|
|
||
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
|
||
|
|
extern int ipoib_debug_level;
|
||
|
|
|
||
|
|
#define ipoib_dbg(priv, format, arg...) \
|
||
|
|
do { \
|
||
|
|
if (ipoib_debug_level > 0) \
|
||
|
|
ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
|
||
|
|
} while (0)
|
||
|
|
#define ipoib_dbg_mcast(priv, format, arg...) \
|
||
|
|
do { \
|
||
|
|
if (mcast_debug_level > 0) \
|
||
|
|
ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
|
||
|
|
} while (0)
|
||
|
|
#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
|
||
|
|
#define ipoib_dbg(priv, format, arg...) \
|
||
|
|
do { (void) (priv); } while (0)
|
||
|
|
#define ipoib_dbg_mcast(priv, format, arg...) \
|
||
|
|
do { (void) (priv); } while (0)
|
||
|
|
#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
|
||
|
|
|
||
|
|
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
|
||
|
|
#define ipoib_dbg_data(priv, format, arg...) \
|
||
|
|
do { \
|
||
|
|
if (data_debug_level > 0) \
|
||
|
|
ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
|
||
|
|
} while (0)
|
||
|
|
#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
|
||
|
|
#define ipoib_dbg_data(priv, format, arg...) \
|
||
|
|
do { (void) (priv); } while (0)
|
||
|
|
#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
|
||
|
|
|
||
|
|
#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
|
||
|
|
|
||
|
|
extern const char ipoib_driver_version[];
|
||
|
|
|
||
|
|
#endif /* _IPOIB_H */
|