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linux_dsm_epyc7002/include/rdma/ib_pack.h
Don Hiatt 243d9f436f IB/hfi1: Add transmit fault injection feature 
Add ability to fault packets on transmit by opcode.
Dropping by packet can be achieved by setting the mask to 0.

In order to drop non-verbs traffic we set PbcInsertHrc
to NONE (0x2). The packet will still be delivered to
the receiving node but a KHdrHCRCErr (KDETH packet
with a bad HCRC) will be triggered and the packet will
not be delivered to the correct context.

In order to drop regular verbs traffic we set the
PbcTestEbp flag. The packet will still be delivered
to the receiving node but a 'late ebp error' will
be triggered and will be dropped.

A global toggle (/sys/kernel/debug/hfi1/hfi1_X/fault_suppress_err)
has been added to suppress the error messages on the receive
node when a packet was faulted on the sending node.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-05 14:45:09 -04:00

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/*
* Copyright (c) 2004 Topspin Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef IB_PACK_H
#define IB_PACK_H
#include <rdma/ib_verbs.h>
#include <uapi/linux/if_ether.h>
enum {
IB_LRH_BYTES = 8,
IB_ETH_BYTES = 14,
IB_VLAN_BYTES = 4,
IB_GRH_BYTES = 40,
IB_IP4_BYTES = 20,
IB_UDP_BYTES = 8,
IB_BTH_BYTES = 12,
IB_DETH_BYTES = 8
};
struct ib_field {
size_t struct_offset_bytes;
size_t struct_size_bytes;
int offset_words;
int offset_bits;
int size_bits;
char *field_name;
};
#define RESERVED \
.field_name = "reserved"
/*
* This macro cleans up the definitions of constants for BTH opcodes.
* It is used to define constants such as IB_OPCODE_UD_SEND_ONLY,
* which becomes IB_OPCODE_UD + IB_OPCODE_SEND_ONLY, and this gives
* the correct value.
*
* In short, user code should use the constants defined using the
* macro rather than worrying about adding together other constants.
*/
#define IB_OPCODE(transport, op) \
IB_OPCODE_ ## transport ## _ ## op = \
IB_OPCODE_ ## transport + IB_OPCODE_ ## op
enum {
/* transport types -- just used to define real constants */
IB_OPCODE_RC = 0x00,
IB_OPCODE_UC = 0x20,
IB_OPCODE_RD = 0x40,
IB_OPCODE_UD = 0x60,
/* per IBTA 1.3 vol 1 Table 38, A10.3.2 */
IB_OPCODE_CNP = 0x80,
/* Manufacturer specific */
IB_OPCODE_MSP = 0xe0,
/* operations -- just used to define real constants */
IB_OPCODE_SEND_FIRST = 0x00,
IB_OPCODE_SEND_MIDDLE = 0x01,
IB_OPCODE_SEND_LAST = 0x02,
IB_OPCODE_SEND_LAST_WITH_IMMEDIATE = 0x03,
IB_OPCODE_SEND_ONLY = 0x04,
IB_OPCODE_SEND_ONLY_WITH_IMMEDIATE = 0x05,
IB_OPCODE_RDMA_WRITE_FIRST = 0x06,
IB_OPCODE_RDMA_WRITE_MIDDLE = 0x07,
IB_OPCODE_RDMA_WRITE_LAST = 0x08,
IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE = 0x09,
IB_OPCODE_RDMA_WRITE_ONLY = 0x0a,
IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE = 0x0b,
IB_OPCODE_RDMA_READ_REQUEST = 0x0c,
IB_OPCODE_RDMA_READ_RESPONSE_FIRST = 0x0d,
IB_OPCODE_RDMA_READ_RESPONSE_MIDDLE = 0x0e,
IB_OPCODE_RDMA_READ_RESPONSE_LAST = 0x0f,
IB_OPCODE_RDMA_READ_RESPONSE_ONLY = 0x10,
IB_OPCODE_ACKNOWLEDGE = 0x11,
IB_OPCODE_ATOMIC_ACKNOWLEDGE = 0x12,
IB_OPCODE_COMPARE_SWAP = 0x13,
IB_OPCODE_FETCH_ADD = 0x14,
/* opcode 0x15 is reserved */
IB_OPCODE_SEND_LAST_WITH_INVALIDATE = 0x16,
IB_OPCODE_SEND_ONLY_WITH_INVALIDATE = 0x17,
/* real constants follow -- see comment about above IB_OPCODE()
macro for more details */
/* RC */
IB_OPCODE(RC, SEND_FIRST),
IB_OPCODE(RC, SEND_MIDDLE),
IB_OPCODE(RC, SEND_LAST),
IB_OPCODE(RC, SEND_LAST_WITH_IMMEDIATE),
IB_OPCODE(RC, SEND_ONLY),
IB_OPCODE(RC, SEND_ONLY_WITH_IMMEDIATE),
IB_OPCODE(RC, RDMA_WRITE_FIRST),
IB_OPCODE(RC, RDMA_WRITE_MIDDLE),
IB_OPCODE(RC, RDMA_WRITE_LAST),
IB_OPCODE(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
IB_OPCODE(RC, RDMA_WRITE_ONLY),
IB_OPCODE(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
IB_OPCODE(RC, RDMA_READ_REQUEST),
IB_OPCODE(RC, RDMA_READ_RESPONSE_FIRST),
IB_OPCODE(RC, RDMA_READ_RESPONSE_MIDDLE),
IB_OPCODE(RC, RDMA_READ_RESPONSE_LAST),
IB_OPCODE(RC, RDMA_READ_RESPONSE_ONLY),
IB_OPCODE(RC, ACKNOWLEDGE),
IB_OPCODE(RC, ATOMIC_ACKNOWLEDGE),
IB_OPCODE(RC, COMPARE_SWAP),
IB_OPCODE(RC, FETCH_ADD),
IB_OPCODE(RC, SEND_LAST_WITH_INVALIDATE),
IB_OPCODE(RC, SEND_ONLY_WITH_INVALIDATE),
/* UC */
IB_OPCODE(UC, SEND_FIRST),
IB_OPCODE(UC, SEND_MIDDLE),
IB_OPCODE(UC, SEND_LAST),
IB_OPCODE(UC, SEND_LAST_WITH_IMMEDIATE),
IB_OPCODE(UC, SEND_ONLY),
IB_OPCODE(UC, SEND_ONLY_WITH_IMMEDIATE),
IB_OPCODE(UC, RDMA_WRITE_FIRST),
IB_OPCODE(UC, RDMA_WRITE_MIDDLE),
IB_OPCODE(UC, RDMA_WRITE_LAST),
IB_OPCODE(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
IB_OPCODE(UC, RDMA_WRITE_ONLY),
IB_OPCODE(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
/* RD */
IB_OPCODE(RD, SEND_FIRST),
IB_OPCODE(RD, SEND_MIDDLE),
IB_OPCODE(RD, SEND_LAST),
IB_OPCODE(RD, SEND_LAST_WITH_IMMEDIATE),
IB_OPCODE(RD, SEND_ONLY),
IB_OPCODE(RD, SEND_ONLY_WITH_IMMEDIATE),
IB_OPCODE(RD, RDMA_WRITE_FIRST),
IB_OPCODE(RD, RDMA_WRITE_MIDDLE),
IB_OPCODE(RD, RDMA_WRITE_LAST),
IB_OPCODE(RD, RDMA_WRITE_LAST_WITH_IMMEDIATE),
IB_OPCODE(RD, RDMA_WRITE_ONLY),
IB_OPCODE(RD, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
IB_OPCODE(RD, RDMA_READ_REQUEST),
IB_OPCODE(RD, RDMA_READ_RESPONSE_FIRST),
IB_OPCODE(RD, RDMA_READ_RESPONSE_MIDDLE),
IB_OPCODE(RD, RDMA_READ_RESPONSE_LAST),
IB_OPCODE(RD, RDMA_READ_RESPONSE_ONLY),
IB_OPCODE(RD, ACKNOWLEDGE),
IB_OPCODE(RD, ATOMIC_ACKNOWLEDGE),
IB_OPCODE(RD, COMPARE_SWAP),
IB_OPCODE(RD, FETCH_ADD),
/* UD */
IB_OPCODE(UD, SEND_ONLY),
IB_OPCODE(UD, SEND_ONLY_WITH_IMMEDIATE)
};
enum {
IB_LNH_RAW = 0,
IB_LNH_IP = 1,
IB_LNH_IBA_LOCAL = 2,
IB_LNH_IBA_GLOBAL = 3
};
struct ib_unpacked_lrh {
u8 virtual_lane;
u8 link_version;
u8 service_level;
u8 link_next_header;
__be16 destination_lid;
__be16 packet_length;
__be16 source_lid;
};
struct ib_unpacked_grh {
u8 ip_version;
u8 traffic_class;
__be32 flow_label;
__be16 payload_length;
u8 next_header;
u8 hop_limit;
union ib_gid source_gid;
union ib_gid destination_gid;
};
struct ib_unpacked_bth {
u8 opcode;
u8 solicited_event;
u8 mig_req;
u8 pad_count;
u8 transport_header_version;
__be16 pkey;
__be32 destination_qpn;
u8 ack_req;
__be32 psn;
};
struct ib_unpacked_deth {
__be32 qkey;
__be32 source_qpn;
};
struct ib_unpacked_eth {
u8 dmac_h[4];
u8 dmac_l[2];
u8 smac_h[2];
u8 smac_l[4];
__be16 type;
};
struct ib_unpacked_ip4 {
u8 ver;
u8 hdr_len;
u8 tos;
__be16 tot_len;
__be16 id;
__be16 frag_off;
u8 ttl;
u8 protocol;
__sum16 check;
__be32 saddr;
__be32 daddr;
};
struct ib_unpacked_udp {
__be16 sport;
__be16 dport;
__be16 length;
__be16 csum;
};
struct ib_unpacked_vlan {
__be16 tag;
__be16 type;
};
struct ib_ud_header {
int lrh_present;
struct ib_unpacked_lrh lrh;
int eth_present;
struct ib_unpacked_eth eth;
int vlan_present;
struct ib_unpacked_vlan vlan;
int grh_present;
struct ib_unpacked_grh grh;
int ipv4_present;
struct ib_unpacked_ip4 ip4;
int udp_present;
struct ib_unpacked_udp udp;
struct ib_unpacked_bth bth;
struct ib_unpacked_deth deth;
int immediate_present;
__be32 immediate_data;
};
void ib_pack(const struct ib_field *desc,
int desc_len,
void *structure,
void *buf);
void ib_unpack(const struct ib_field *desc,
int desc_len,
void *buf,
void *structure);
__sum16 ib_ud_ip4_csum(struct ib_ud_header *header);
int ib_ud_header_init(int payload_bytes,
int lrh_present,
int eth_present,
int vlan_present,
int grh_present,
int ip_version,
int udp_present,
int immediate_present,
struct ib_ud_header *header);
int ib_ud_header_pack(struct ib_ud_header *header,
void *buf);
int ib_ud_header_unpack(void *buf,
struct ib_ud_header *header);
#endif /* IB_PACK_H */
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