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linux/drivers/net/cxgb4/t4_msg.h
Dimitris Michailidis ba5d3c66e0 cxgb4: don't offload Rx checksums for IPv6 fragments 
The checksum provided by the device doesn't include the L3 headers,
as IPv6 expects.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 16:26:41 -07:00

678 lines
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/*
* This file is part of the Chelsio T4 Ethernet driver for Linux.
*
* Copyright (c) 2003-2010 Chelsio Communications, Inc. 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 __T4_MSG_H
#define __T4_MSG_H
#include <linux/types.h>
enum {
CPL_PASS_OPEN_REQ = 0x1,
CPL_PASS_ACCEPT_RPL = 0x2,
CPL_ACT_OPEN_REQ = 0x3,
CPL_SET_TCB_FIELD = 0x5,
CPL_GET_TCB = 0x6,
CPL_CLOSE_CON_REQ = 0x8,
CPL_CLOSE_LISTSRV_REQ = 0x9,
CPL_ABORT_REQ = 0xA,
CPL_ABORT_RPL = 0xB,
CPL_RX_DATA_ACK = 0xD,
CPL_TX_PKT = 0xE,
CPL_L2T_WRITE_REQ = 0x12,
CPL_TID_RELEASE = 0x1A,
CPL_CLOSE_LISTSRV_RPL = 0x20,
CPL_L2T_WRITE_RPL = 0x23,
CPL_PASS_OPEN_RPL = 0x24,
CPL_ACT_OPEN_RPL = 0x25,
CPL_PEER_CLOSE = 0x26,
CPL_ABORT_REQ_RSS = 0x2B,
CPL_ABORT_RPL_RSS = 0x2D,
CPL_CLOSE_CON_RPL = 0x32,
CPL_ISCSI_HDR = 0x33,
CPL_RDMA_CQE = 0x35,
CPL_RDMA_CQE_READ_RSP = 0x36,
CPL_RDMA_CQE_ERR = 0x37,
CPL_RX_DATA = 0x39,
CPL_SET_TCB_RPL = 0x3A,
CPL_RX_PKT = 0x3B,
CPL_RX_DDP_COMPLETE = 0x3F,
CPL_ACT_ESTABLISH = 0x40,
CPL_PASS_ESTABLISH = 0x41,
CPL_RX_DATA_DDP = 0x42,
CPL_PASS_ACCEPT_REQ = 0x44,
CPL_RDMA_READ_REQ = 0x60,
CPL_PASS_OPEN_REQ6 = 0x81,
CPL_ACT_OPEN_REQ6 = 0x83,
CPL_RDMA_TERMINATE = 0xA2,
CPL_RDMA_WRITE = 0xA4,
CPL_SGE_EGR_UPDATE = 0xA5,
CPL_TRACE_PKT = 0xB0,
CPL_FW4_MSG = 0xC0,
CPL_FW4_PLD = 0xC1,
CPL_FW4_ACK = 0xC3,
CPL_FW6_MSG = 0xE0,
CPL_FW6_PLD = 0xE1,
CPL_TX_PKT_LSO = 0xED,
CPL_TX_PKT_XT = 0xEE,
NUM_CPL_CMDS
};
enum CPL_error {
CPL_ERR_NONE = 0,
CPL_ERR_TCAM_FULL = 3,
CPL_ERR_BAD_LENGTH = 15,
CPL_ERR_BAD_ROUTE = 18,
CPL_ERR_CONN_RESET = 20,
CPL_ERR_CONN_EXIST_SYNRECV = 21,
CPL_ERR_CONN_EXIST = 22,
CPL_ERR_ARP_MISS = 23,
CPL_ERR_BAD_SYN = 24,
CPL_ERR_CONN_TIMEDOUT = 30,
CPL_ERR_XMIT_TIMEDOUT = 31,
CPL_ERR_PERSIST_TIMEDOUT = 32,
CPL_ERR_FINWAIT2_TIMEDOUT = 33,
CPL_ERR_KEEPALIVE_TIMEDOUT = 34,
CPL_ERR_RTX_NEG_ADVICE = 35,
CPL_ERR_PERSIST_NEG_ADVICE = 36,
CPL_ERR_ABORT_FAILED = 42,
CPL_ERR_IWARP_FLM = 50,
};
enum {
ULP_MODE_NONE = 0,
ULP_MODE_ISCSI = 2,
ULP_MODE_RDMA = 4,
ULP_MODE_FCOE = 6,
};
enum {
ULP_CRC_HEADER = 1 << 0,
ULP_CRC_DATA = 1 << 1
};
enum {
CPL_ABORT_SEND_RST = 0,
CPL_ABORT_NO_RST,
};
enum { /* TX_PKT_XT checksum types */
TX_CSUM_TCP = 0,
TX_CSUM_UDP = 1,
TX_CSUM_CRC16 = 4,
TX_CSUM_CRC32 = 5,
TX_CSUM_CRC32C = 6,
TX_CSUM_FCOE = 7,
TX_CSUM_TCPIP = 8,
TX_CSUM_UDPIP = 9,
TX_CSUM_TCPIP6 = 10,
TX_CSUM_UDPIP6 = 11,
TX_CSUM_IP = 12,
};
union opcode_tid {
__be32 opcode_tid;
u8 opcode;
};
#define CPL_OPCODE(x) ((x) << 24)
#define MK_OPCODE_TID(opcode, tid) (CPL_OPCODE(opcode) | (tid))
#define OPCODE_TID(cmd) ((cmd)->ot.opcode_tid)
#define GET_TID(cmd) (ntohl(OPCODE_TID(cmd)) & 0xFFFFFF)
/* partitioning of TID fields that also carry a queue id */
#define GET_TID_TID(x) ((x) & 0x3fff)
#define GET_TID_QID(x) (((x) >> 14) & 0x3ff)
#define TID_QID(x) ((x) << 14)
struct rss_header {
u8 opcode;
#if defined(__LITTLE_ENDIAN_BITFIELD)
u8 channel:2;
u8 filter_hit:1;
u8 filter_tid:1;
u8 hash_type:2;
u8 ipv6:1;
u8 send2fw:1;
#else
u8 send2fw:1;
u8 ipv6:1;
u8 hash_type:2;
u8 filter_tid:1;
u8 filter_hit:1;
u8 channel:2;
#endif
__be16 qid;
__be32 hash_val;
};
struct work_request_hdr {
__be32 wr_hi;
__be32 wr_mid;
__be64 wr_lo;
};
#define WR_HDR struct work_request_hdr wr
struct cpl_pass_open_req {
WR_HDR;
union opcode_tid ot;
__be16 local_port;
__be16 peer_port;
__be32 local_ip;
__be32 peer_ip;
__be64 opt0;
#define TX_CHAN(x) ((x) << 2)
#define DELACK(x) ((x) << 5)
#define ULP_MODE(x) ((x) << 8)
#define RCV_BUFSIZ(x) ((x) << 12)
#define DSCP(x) ((x) << 22)
#define SMAC_SEL(x) ((u64)(x) << 28)
#define L2T_IDX(x) ((u64)(x) << 36)
#define NAGLE(x) ((u64)(x) << 49)
#define WND_SCALE(x) ((u64)(x) << 50)
#define KEEP_ALIVE(x) ((u64)(x) << 54)
#define MSS_IDX(x) ((u64)(x) << 60)
__be64 opt1;
#define SYN_RSS_ENABLE (1 << 0)
#define SYN_RSS_QUEUE(x) ((x) << 2)
#define CONN_POLICY_ASK (1 << 22)
};
struct cpl_pass_open_req6 {
WR_HDR;
union opcode_tid ot;
__be16 local_port;
__be16 peer_port;
__be64 local_ip_hi;
__be64 local_ip_lo;
__be64 peer_ip_hi;
__be64 peer_ip_lo;
__be64 opt0;
__be64 opt1;
};
struct cpl_pass_open_rpl {
union opcode_tid ot;
u8 rsvd[3];
u8 status;
};
struct cpl_pass_accept_rpl {
WR_HDR;
union opcode_tid ot;
__be32 opt2;
#define RSS_QUEUE(x) ((x) << 0)
#define RSS_QUEUE_VALID (1 << 10)
#define RX_COALESCE_VALID(x) ((x) << 11)
#define RX_COALESCE(x) ((x) << 12)
#define TX_QUEUE(x) ((x) << 23)
#define RX_CHANNEL(x) ((x) << 26)
#define WND_SCALE_EN(x) ((x) << 28)
#define TSTAMPS_EN(x) ((x) << 29)
#define SACK_EN(x) ((x) << 30)
__be64 opt0;
};
struct cpl_act_open_req {
WR_HDR;
union opcode_tid ot;
__be16 local_port;
__be16 peer_port;
__be32 local_ip;
__be32 peer_ip;
__be64 opt0;
__be32 params;
__be32 opt2;
};
struct cpl_act_open_req6 {
WR_HDR;
union opcode_tid ot;
__be16 local_port;
__be16 peer_port;
__be64 local_ip_hi;
__be64 local_ip_lo;
__be64 peer_ip_hi;
__be64 peer_ip_lo;
__be64 opt0;
__be32 params;
__be32 opt2;
};
struct cpl_act_open_rpl {
union opcode_tid ot;
__be32 atid_status;
#define GET_AOPEN_STATUS(x) ((x) & 0xff)
#define GET_AOPEN_ATID(x) (((x) >> 8) & 0xffffff)
};
struct cpl_pass_establish {
union opcode_tid ot;
__be32 rsvd;
__be32 tos_stid;
#define GET_POPEN_TID(x) ((x) & 0xffffff)
#define GET_POPEN_TOS(x) (((x) >> 24) & 0xff)
__be16 mac_idx;
__be16 tcp_opt;
#define GET_TCPOPT_WSCALE_OK(x) (((x) >> 5) & 1)
#define GET_TCPOPT_SACK(x) (((x) >> 6) & 1)
#define GET_TCPOPT_TSTAMP(x) (((x) >> 7) & 1)
#define GET_TCPOPT_SND_WSCALE(x) (((x) >> 8) & 0xf)
#define GET_TCPOPT_MSS(x) (((x) >> 12) & 0xf)
__be32 snd_isn;
__be32 rcv_isn;
};
struct cpl_act_establish {
union opcode_tid ot;
__be32 rsvd;
__be32 tos_atid;
__be16 mac_idx;
__be16 tcp_opt;
__be32 snd_isn;
__be32 rcv_isn;
};
struct cpl_get_tcb {
WR_HDR;
union opcode_tid ot;
__be16 reply_ctrl;
#define QUEUENO(x) ((x) << 0)
#define REPLY_CHAN(x) ((x) << 14)
#define NO_REPLY(x) ((x) << 15)
__be16 cookie;
};
struct cpl_set_tcb_field {
WR_HDR;
union opcode_tid ot;
__be16 reply_ctrl;
__be16 word_cookie;
#define TCB_WORD(x) ((x) << 0)
#define TCB_COOKIE(x) ((x) << 5)
__be64 mask;
__be64 val;
};
struct cpl_set_tcb_rpl {
union opcode_tid ot;
__be16 rsvd;
u8 cookie;
u8 status;
__be64 oldval;
};
struct cpl_close_con_req {
WR_HDR;
union opcode_tid ot;
__be32 rsvd;
};
struct cpl_close_con_rpl {
union opcode_tid ot;
u8 rsvd[3];
u8 status;
__be32 snd_nxt;
__be32 rcv_nxt;
};
struct cpl_close_listsvr_req {
WR_HDR;
union opcode_tid ot;
__be16 reply_ctrl;
#define LISTSVR_IPV6 (1 << 14)
__be16 rsvd;
};
struct cpl_close_listsvr_rpl {
union opcode_tid ot;
u8 rsvd[3];
u8 status;
};
struct cpl_abort_req_rss {
union opcode_tid ot;
u8 rsvd[3];
u8 status;
};
struct cpl_abort_req {
WR_HDR;
union opcode_tid ot;
__be32 rsvd0;
u8 rsvd1;
u8 cmd;
u8 rsvd2[6];
};
struct cpl_abort_rpl_rss {
union opcode_tid ot;
u8 rsvd[3];
u8 status;
};
struct cpl_abort_rpl {
WR_HDR;
union opcode_tid ot;
__be32 rsvd0;
u8 rsvd1;
u8 cmd;
u8 rsvd2[6];
};
struct cpl_peer_close {
union opcode_tid ot;
__be32 rcv_nxt;
};
struct cpl_tid_release {
WR_HDR;
union opcode_tid ot;
__be32 rsvd;
};
struct cpl_tx_pkt_core {
__be32 ctrl0;
#define TXPKT_VF(x) ((x) << 0)
#define TXPKT_PF(x) ((x) << 8)
#define TXPKT_VF_VLD (1 << 11)
#define TXPKT_OVLAN_IDX(x) ((x) << 12)
#define TXPKT_INTF(x) ((x) << 16)
#define TXPKT_INS_OVLAN (1 << 21)
#define TXPKT_OPCODE(x) ((x) << 24)
__be16 pack;
__be16 len;
__be64 ctrl1;
#define TXPKT_CSUM_END(x) ((x) << 12)
#define TXPKT_CSUM_START(x) ((x) << 20)
#define TXPKT_IPHDR_LEN(x) ((u64)(x) << 20)
#define TXPKT_CSUM_LOC(x) ((u64)(x) << 30)
#define TXPKT_ETHHDR_LEN(x) ((u64)(x) << 34)
#define TXPKT_CSUM_TYPE(x) ((u64)(x) << 40)
#define TXPKT_VLAN(x) ((u64)(x) << 44)
#define TXPKT_VLAN_VLD (1ULL << 60)
#define TXPKT_IPCSUM_DIS (1ULL << 62)
#define TXPKT_L4CSUM_DIS (1ULL << 63)
};
struct cpl_tx_pkt {
WR_HDR;
struct cpl_tx_pkt_core c;
};
#define cpl_tx_pkt_xt cpl_tx_pkt
struct cpl_tx_pkt_lso_core {
__be32 lso_ctrl;
#define LSO_TCPHDR_LEN(x) ((x) << 0)
#define LSO_IPHDR_LEN(x) ((x) << 4)
#define LSO_ETHHDR_LEN(x) ((x) << 16)
#define LSO_IPV6(x) ((x) << 20)
#define LSO_LAST_SLICE (1 << 22)
#define LSO_FIRST_SLICE (1 << 23)
#define LSO_OPCODE(x) ((x) << 24)
__be16 ipid_ofst;
__be16 mss;
__be32 seqno_offset;
__be32 len;
/* encapsulated CPL (TX_PKT, TX_PKT_XT or TX_DATA) follows here */
};
struct cpl_tx_pkt_lso {
WR_HDR;
struct cpl_tx_pkt_lso_core c;
/* encapsulated CPL (TX_PKT, TX_PKT_XT or TX_DATA) follows here */
};
struct cpl_iscsi_hdr {
union opcode_tid ot;
__be16 pdu_len_ddp;
#define ISCSI_PDU_LEN(x) ((x) & 0x7FFF)
#define ISCSI_DDP (1 << 15)
__be16 len;
__be32 seq;
__be16 urg;
u8 rsvd;
u8 status;
};
struct cpl_rx_data {
union opcode_tid ot;
__be16 rsvd;
__be16 len;
__be32 seq;
__be16 urg;
#if defined(__LITTLE_ENDIAN_BITFIELD)
u8 dack_mode:2;
u8 psh:1;
u8 heartbeat:1;
u8 ddp_off:1;
u8 :3;
#else
u8 :3;
u8 ddp_off:1;
u8 heartbeat:1;
u8 psh:1;
u8 dack_mode:2;
#endif
u8 status;
};
struct cpl_rx_data_ack {
WR_HDR;
union opcode_tid ot;
__be32 credit_dack;
#define RX_CREDITS(x) ((x) << 0)
#define RX_FORCE_ACK(x) ((x) << 28)
};
struct cpl_rx_pkt {
struct rss_header rsshdr;
u8 opcode;
#if defined(__LITTLE_ENDIAN_BITFIELD)
u8 iff:4;
u8 csum_calc:1;
u8 ipmi_pkt:1;
u8 vlan_ex:1;
u8 ip_frag:1;
#else
u8 ip_frag:1;
u8 vlan_ex:1;
u8 ipmi_pkt:1;
u8 csum_calc:1;
u8 iff:4;
#endif
__be16 csum;
__be16 vlan;
__be16 len;
__be32 l2info;
#define RXF_UDP (1 << 22)
#define RXF_TCP (1 << 23)
#define RXF_IP (1 << 24)
#define RXF_IP6 (1 << 25)
__be16 hdr_len;
__be16 err_vec;
};
struct cpl_trace_pkt {
u8 opcode;
u8 intf;
#if defined(__LITTLE_ENDIAN_BITFIELD)
u8 runt:4;
u8 filter_hit:4;
u8 :6;
u8 err:1;
u8 trunc:1;
#else
u8 filter_hit:4;
u8 runt:4;
u8 trunc:1;
u8 err:1;
u8 :6;
#endif
__be16 rsvd;
__be16 len;
__be64 tstamp;
};
struct cpl_l2t_write_req {
WR_HDR;
union opcode_tid ot;
__be16 params;
#define L2T_W_INFO(x) ((x) << 2)
#define L2T_W_PORT(x) ((x) << 8)
#define L2T_W_NOREPLY(x) ((x) << 15)
__be16 l2t_idx;
__be16 vlan;
u8 dst_mac[6];
};
struct cpl_l2t_write_rpl {
union opcode_tid ot;
u8 status;
u8 rsvd[3];
};
struct cpl_rdma_terminate {
union opcode_tid ot;
__be16 rsvd;
__be16 len;
};
struct cpl_sge_egr_update {
__be32 opcode_qid;
#define EGR_QID(x) ((x) & 0x1FFFF)
__be16 cidx;
__be16 pidx;
};
struct cpl_fw4_pld {
u8 opcode;
u8 rsvd0[3];
u8 type;
u8 rsvd1;
__be16 len;
__be64 data;
__be64 rsvd2;
};
struct cpl_fw6_pld {
u8 opcode;
u8 rsvd[5];
__be16 len;
__be64 data[4];
};
struct cpl_fw4_msg {
u8 opcode;
u8 type;
__be16 rsvd0;
__be32 rsvd1;
__be64 data[2];
};
struct cpl_fw4_ack {
union opcode_tid ot;
u8 credits;
u8 rsvd0[2];
u8 seq_vld;
__be32 snd_nxt;
__be32 snd_una;
__be64 rsvd1;
};
struct cpl_fw6_msg {
u8 opcode;
u8 type;
__be16 rsvd0;
__be32 rsvd1;
__be64 data[4];
};
/* cpl_fw6_msg.type values */
enum {
FW6_TYPE_CMD_RPL = 0,
};
enum {
ULP_TX_MEM_READ = 2,
ULP_TX_MEM_WRITE = 3,
ULP_TX_PKT = 4
};
enum {
ULP_TX_SC_NOOP = 0x80,
ULP_TX_SC_IMM = 0x81,
ULP_TX_SC_DSGL = 0x82,
ULP_TX_SC_ISGL = 0x83
};
struct ulptx_sge_pair {
__be32 len[2];
__be64 addr[2];
};
struct ulptx_sgl {
__be32 cmd_nsge;
#define ULPTX_CMD(x) ((x) << 24)
#define ULPTX_NSGE(x) ((x) << 0)
__be32 len0;
__be64 addr0;
struct ulptx_sge_pair sge[0];
};
struct ulp_mem_io {
WR_HDR;
__be32 cmd;
#define ULP_MEMIO_ORDER(x) ((x) << 23)
__be32 len16; /* command length */
__be32 dlen; /* data length in 32-byte units */
#define ULP_MEMIO_DATA_LEN(x) ((x) << 0)
__be32 lock_addr;
#define ULP_MEMIO_ADDR(x) ((x) << 0)
#define ULP_MEMIO_LOCK(x) ((x) << 31)
};
#endif /* __T4_MSG_H */
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