/* * Shared Memory Communications over RDMA (SMC-R) and RoCE * * CLC (connection layer control) handshake over initial TCP socket to * prepare for RDMA traffic * * Copyright IBM Corp. 2016 * * Author(s): Ursula Braun */ #ifndef _SMC_CLC_H #define _SMC_CLC_H #include #include "smc.h" #define SMC_CLC_PROPOSAL 0x01 #define SMC_CLC_ACCEPT 0x02 #define SMC_CLC_CONFIRM 0x03 #define SMC_CLC_DECLINE 0x04 /* eye catcher "SMCR" EBCDIC for CLC messages */ static const char SMC_EYECATCHER[4] = {'\xe2', '\xd4', '\xc3', '\xd9'}; #define SMC_CLC_V1 0x1 /* SMC version */ #define CLC_WAIT_TIME (6 * HZ) /* max. wait time on clcsock */ #define SMC_CLC_DECL_MEM 0x01010000 /* insufficient memory resources */ #define SMC_CLC_DECL_TIMEOUT 0x02000000 /* timeout */ #define SMC_CLC_DECL_CNFERR 0x03000000 /* configuration error */ #define SMC_CLC_DECL_IPSEC 0x03030000 /* IPsec usage */ #define SMC_CLC_DECL_SYNCERR 0x04000000 /* synchronization error */ #define SMC_CLC_DECL_REPLY 0x06000000 /* reply to a received decline */ #define SMC_CLC_DECL_INTERR 0x99990000 /* internal error */ #define SMC_CLC_DECL_TCL 0x02040000 /* timeout w4 QP confirm */ #define SMC_CLC_DECL_SEND 0x07000000 /* sending problem */ struct smc_clc_msg_hdr { /* header1 of clc messages */ u8 eyecatcher[4]; /* eye catcher */ u8 type; /* proposal / accept / confirm / decline */ __be16 length; #if defined(__BIG_ENDIAN_BITFIELD) u8 version : 4, flag : 1, rsvd : 3; #elif defined(__LITTLE_ENDIAN_BITFIELD) u8 rsvd : 3, flag : 1, version : 4; #endif } __packed; /* format defined in RFC7609 */ struct smc_clc_msg_trail { /* trailer of clc messages */ u8 eyecatcher[4]; }; struct smc_clc_msg_local { /* header2 of clc messages */ u8 id_for_peer[SMC_SYSTEMID_LEN]; /* unique system id */ u8 gid[16]; /* gid of ib_device port */ u8 mac[6]; /* mac of ib_device port */ }; struct smc_clc_msg_proposal { /* clc proposal message */ struct smc_clc_msg_hdr hdr; struct smc_clc_msg_local lcl; __be16 iparea_offset; /* offset to IP address information area */ __be32 outgoing_subnet; /* subnet mask */ u8 prefix_len; /* number of significant bits in mask */ u8 reserved[2]; u8 ipv6_prefixes_cnt; /* number of IPv6 prefixes in prefix array */ struct smc_clc_msg_trail trl; /* eye catcher "SMCR" EBCDIC */ } __aligned(4); struct smc_clc_msg_accept_confirm { /* clc accept / confirm message */ struct smc_clc_msg_hdr hdr; struct smc_clc_msg_local lcl; u8 qpn[3]; /* QP number */ __be32 rmb_rkey; /* RMB rkey */ u8 conn_idx; /* Connection index, which RMBE in RMB */ __be32 rmbe_alert_token;/* unique connection id */ #if defined(__BIG_ENDIAN_BITFIELD) u8 rmbe_size : 4, /* RMBE buf size (compressed notation) */ qp_mtu : 4; /* QP mtu */ #elif defined(__LITTLE_ENDIAN_BITFIELD) u8 qp_mtu : 4, rmbe_size : 4; #endif u8 reserved; __be64 rmb_dma_addr; /* RMB virtual address */ u8 reserved2; u8 psn[3]; /* initial packet sequence number */ struct smc_clc_msg_trail trl; /* eye catcher "SMCR" EBCDIC */ } __packed; /* format defined in RFC7609 */ struct smc_clc_msg_decline { /* clc decline message */ struct smc_clc_msg_hdr hdr; u8 id_for_peer[SMC_SYSTEMID_LEN]; /* sender peer_id */ __be32 peer_diagnosis; /* diagnosis information */ u8 reserved2[4]; struct smc_clc_msg_trail trl; /* eye catcher "SMCR" EBCDIC */ } __aligned(4); struct smc_sock; struct smc_ib_device; int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen, u8 expected_type); int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info, u8 out_of_sync); int smc_clc_send_proposal(struct smc_sock *smc, struct smc_ib_device *smcibdev, u8 ibport); int smc_clc_send_confirm(struct smc_sock *smc); int smc_clc_send_accept(struct smc_sock *smc, int srv_first_contact); #endif '2'/>context:space:mode:
authorDavid S. Miller <davem@davemloft.net>2017-02-01 12:46:17 -0500
committerDavid S. Miller <davem@davemloft.net>2017-02-01 12:46:17 -0500
commit889711a03e0fba427fb85317900e93c74e3be02a (patch)
tree05af2eda6502a95cf11935cce1e9b25a1340e7ca /drivers/usb/host/ohci-tilegx.c
parentff1176f6164f3d151ee64c05d3f7b6662a81b982 (diff)
parent7243a1af37a4dc9225004546d9d0756c529ad3ce (diff)
Merge tag 'wireless-drivers-next-for-davem-2017-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says: ==================== wireless-drivers-next patches for 4.11 It's nice to see rt2x00 development has becoming active, for example adding support for a new chip version. Also wcn36xx has been converted to use the recently merged QCOM_SMD subsystem. Otherwise new features and fixes it lots of drivers. Major changes: iwlwifi * some more work in preparation for A000 family support * add support for radiotap timestamps * some work on our firmware debugging capabilities wcn36xx * convert to a proper QCOM_SMD driver (from the platform_driver interface) ath10k * VHT160 support * dump Copy Engine registers during firmware crash * search board file extension from SMBIOS wil6210 * add disable_ap_sme module parameter rt2x00 * support RT3352 with external PA * support for RT3352 with 20MHz crystal * add support for RT5350 WiSoC brcmfmac * add support for BCM43455 sdio device rtl8xxxu * add support for D-Link DWA-131 rev E1, TP-Link TL-WN822N v4 and others ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/host/ohci-tilegx.c')