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Diffstat (limited to 'net/smc/smc_clc.h')
-rw-r--r--net/smc/smc_clc.h72
1 files changed, 67 insertions, 5 deletions
diff --git a/net/smc/smc_clc.h b/net/smc/smc_clc.h
index 32d37f7b70f2..83f02f131fc0 100644
--- a/net/smc/smc_clc.h
+++ b/net/smc/smc_clc.h
@@ -14,8 +14,10 @@
#define _SMC_CLC_H
#include <rdma/ib_verbs.h>
+#include <linux/smc.h>
#include "smc.h"
+#include "smc_netlink.h"
#define SMC_CLC_PROPOSAL 0x01
#define SMC_CLC_ACCEPT 0x02
@@ -42,6 +44,7 @@
#define SMC_CLC_DECL_NOV2DEXT 0x03030005 /* peer sent no clc SMC-Dv2 ext. */
#define SMC_CLC_DECL_NOSEID 0x03030006 /* peer sent no SEID */
#define SMC_CLC_DECL_NOSMCD2DEV 0x03030007 /* no SMC-Dv2 device found */
+#define SMC_CLC_DECL_NOUEID 0x03030008 /* peer sent no UEID */
#define SMC_CLC_DECL_MODEUNSUPP 0x03040000 /* smc modes do not match (R or D)*/
#define SMC_CLC_DECL_RMBE_EC 0x03050000 /* peer has eyecatcher in RMBE */
#define SMC_CLC_DECL_OPTUNSUPP 0x03060000 /* fastopen sockopt not supported */
@@ -52,6 +55,8 @@
#define SMC_CLC_DECL_NOSRVLINK 0x030b0000 /* SMC-R link from srv not found */
#define SMC_CLC_DECL_VERSMISMAT 0x030c0000 /* SMC version mismatch */
#define SMC_CLC_DECL_MAX_DMB 0x030d0000 /* SMC-D DMB limit exceeded */
+#define SMC_CLC_DECL_NOROUTE 0x030e0000 /* SMC-Rv2 conn. no route to peer */
+#define SMC_CLC_DECL_NOINDIRECT 0x030f0000 /* SMC-Rv2 conn. indirect mismatch*/
#define SMC_CLC_DECL_SYNCERR 0x04000000 /* synchronization error */
#define SMC_CLC_DECL_PEERDECL 0x05000000 /* peer declined during handshake */
#define SMC_CLC_DECL_INTERR 0x09990000 /* internal error */
@@ -158,6 +163,7 @@ struct smc_clc_msg_proposal { /* clc proposal message sent by Linux */
} __aligned(4);
#define SMC_CLC_MAX_V6_PREFIX 8
+#define SMC_CLC_MAX_UEID 8
struct smc_clc_msg_proposal_area {
struct smc_clc_msg_proposal pclc_base;
@@ -165,6 +171,7 @@ struct smc_clc_msg_proposal_area {
struct smc_clc_msg_proposal_prefix pclc_prfx;
struct smc_clc_ipv6_prefix pclc_prfx_ipv6[SMC_CLC_MAX_V6_PREFIX];
struct smc_clc_v2_extension pclc_v2_ext;
+ u8 user_eids[SMC_CLC_MAX_UEID][SMC_MAX_EID_LEN];
struct smc_clc_smcd_v2_extension pclc_smcd_v2_ext;
struct smc_clc_smcd_gid_chid pclc_gidchids[SMC_MAX_ISM_DEVS];
struct smc_clc_msg_trail pclc_trl;
@@ -209,11 +216,14 @@ struct smcd_clc_msg_accept_confirm_common { /* SMCD accept/confirm */
#define SMC_CLC_OS_AIX 3
struct smc_clc_first_contact_ext {
- u8 reserved1;
#if defined(__BIG_ENDIAN_BITFIELD)
+ u8 v2_direct : 1,
+ reserved : 7;
u8 os_type : 4,
release : 4;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ u8 reserved : 7,
+ v2_direct : 1;
u8 release : 4,
os_type : 4;
#endif
@@ -221,6 +231,13 @@ struct smc_clc_first_contact_ext {
u8 hostname[SMC_MAX_HOSTNAME_LEN];
};
+struct smc_clc_fce_gid_ext {
+ u8 reserved[16];
+ u8 gid_cnt;
+ u8 reserved2[3];
+ u8 gid[][SMC_GID_SIZE];
+};
+
struct smc_clc_msg_accept_confirm { /* clc accept / confirm message */
struct smc_clc_msg_hdr hdr;
union {
@@ -235,13 +252,17 @@ struct smc_clc_msg_accept_confirm { /* clc accept / confirm message */
struct smc_clc_msg_accept_confirm_v2 { /* clc accept / confirm message */
struct smc_clc_msg_hdr hdr;
union {
- struct smcr_clc_msg_accept_confirm r0; /* SMC-R */
+ struct { /* SMC-R */
+ struct smcr_clc_msg_accept_confirm r0;
+ u8 eid[SMC_MAX_EID_LEN];
+ u8 reserved6[8];
+ } r1;
struct { /* SMC-D */
struct smcd_clc_msg_accept_confirm_common d0;
__be16 chid;
u8 eid[SMC_MAX_EID_LEN];
u8 reserved5[8];
- };
+ } d1;
};
};
@@ -260,6 +281,24 @@ struct smc_clc_msg_decline { /* clc decline message */
struct smc_clc_msg_trail trl; /* eye catcher "SMCD" or "SMCR" EBCDIC */
} __aligned(4);
+#define SMC_DECL_DIAG_COUNT_V2 4 /* no. of additional peer diagnosis codes */
+
+struct smc_clc_msg_decline_v2 { /* clc decline message */
+ struct smc_clc_msg_hdr hdr;
+ u8 id_for_peer[SMC_SYSTEMID_LEN]; /* sender peer_id */
+ __be32 peer_diagnosis; /* diagnosis information */
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u8 os_type : 4,
+ reserved : 4;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ u8 reserved : 4,
+ os_type : 4;
+#endif
+ u8 reserved2[3];
+ __be32 peer_diagnosis_v2[SMC_DECL_DIAG_COUNT_V2];
+ struct smc_clc_msg_trail trl; /* eye catcher "SMCD" or "SMCR" EBCDIC */
+} __aligned(4);
+
/* determine start of the prefix area within the proposal message */
static inline struct smc_clc_msg_proposal_prefix *
smc_clc_proposal_get_prefix(struct smc_clc_msg_proposal *pclc)
@@ -278,6 +317,17 @@ static inline bool smcd_indicated(int smc_type)
return smc_type == SMC_TYPE_D || smc_type == SMC_TYPE_B;
}
+static inline u8 smc_indicated_type(int is_smcd, int is_smcr)
+{
+ if (is_smcd && is_smcr)
+ return SMC_TYPE_B;
+ if (is_smcd)
+ return SMC_TYPE_D;
+ if (is_smcr)
+ return SMC_TYPE_R;
+ return SMC_TYPE_N;
+}
+
/* get SMC-D info from proposal message */
static inline struct smc_clc_msg_smcd *
smc_get_clc_msg_smcd(struct smc_clc_msg_proposal *prop)
@@ -330,10 +380,22 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info, u8 version);
int smc_clc_send_proposal(struct smc_sock *smc, struct smc_init_info *ini);
int smc_clc_send_confirm(struct smc_sock *smc, bool clnt_first_contact,
- u8 version);
+ u8 version, u8 *eid, struct smc_init_info *ini);
int smc_clc_send_accept(struct smc_sock *smc, bool srv_first_contact,
- u8 version);
+ u8 version, u8 *negotiated_eid);
void smc_clc_init(void) __init;
+void smc_clc_exit(void);
void smc_clc_get_hostname(u8 **host);
+bool smc_clc_match_eid(u8 *negotiated_eid,
+ struct smc_clc_v2_extension *smc_v2_ext,
+ u8 *peer_eid, u8 *local_eid);
+int smc_clc_ueid_count(void);
+int smc_nl_dump_ueid(struct sk_buff *skb, struct netlink_callback *cb);
+int smc_nl_add_ueid(struct sk_buff *skb, struct genl_info *info);
+int smc_nl_remove_ueid(struct sk_buff *skb, struct genl_info *info);
+int smc_nl_flush_ueid(struct sk_buff *skb, struct genl_info *info);
+int smc_nl_dump_seid(struct sk_buff *skb, struct netlink_callback *cb);
+int smc_nl_enable_seid(struct sk_buff *skb, struct genl_info *info);
+int smc_nl_disable_seid(struct sk_buff *skb, struct genl_info *info);
#endif
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-09 06:28:41 +0300