From 42042dbbc2ebb926e594b22490374d9343c746ef Mon Sep 17 00:00:00 2001 From: Karsten Graul Date: Sat, 16 Oct 2021 11:37:44 +0200 Subject: net/smc: prepare for SMC-Rv2 connection Prepare the connection establishment with SMC-Rv2. Detect eligible RoCE cards and indicate all supported SMC modes for the connection. Signed-off-by: Karsten Graul Signed-off-by: David S. Miller --- net/smc/smc_core.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'net/smc/smc_core.h') diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h index 83d30b06016f..4a1778a7e3a5 100644 --- a/net/smc/smc_core.h +++ b/net/smc/smc_core.h @@ -302,6 +302,31 @@ struct smc_link_group { struct smc_clc_msg_local; +#define GID_LIST_SIZE 2 + +struct smc_gidlist { + u8 len; + u8 list[GID_LIST_SIZE][SMC_GID_SIZE]; +}; + +struct smc_init_info_smcrv2 { + /* Input fields */ + __be32 saddr; + struct sock *clc_sk; + __be32 daddr; + + /* Output fields when saddr is set */ + struct smc_ib_device *ib_dev_v2; + u8 ib_port_v2; + u8 ib_gid_v2[SMC_GID_SIZE]; + + /* Additional output fields when clc_sk and daddr is set as well */ + u8 uses_gateway; + u8 nexthop_mac[ETH_ALEN]; + + struct smc_gidlist gidlist; +}; + struct smc_init_info { u8 is_smcd; u8 smc_type_v1; @@ -313,10 +338,13 @@ struct smc_init_info { u8 negotiated_eid[SMC_MAX_EID_LEN]; /* SMC-R */ struct smc_clc_msg_local *ib_lcl; + u8 smcr_version; + u8 check_smcrv2; struct smc_ib_device *ib_dev; u8 ib_gid[SMC_GID_SIZE]; u8 ib_port; u32 ib_clcqpn; + struct smc_init_info_smcrv2 smcrv2; /* SMC-D */ u64 ism_peer_gid[SMC_MAX_ISM_DEVS + 1]; struct smcd_dev *ism_dev[SMC_MAX_ISM_DEVS + 1]; -- cgit v1.2.3