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Diffstat (limited to 'net/smc/smc_clc.h')
-rw-r--r--net/smc/smc_clc.h67
1 files changed, 36 insertions, 31 deletions
diff --git a/net/smc/smc_clc.h b/net/smc/smc_clc.h
index 08155a96a0..a9f9bdd26d 100644
--- a/net/smc/smc_clc.h
+++ b/net/smc/smc_clc.h
@@ -138,7 +138,8 @@ struct smc_clc_v2_extension {
u8 roce[16]; /* RoCEv2 GID */
u8 max_conns;
u8 max_links;
- u8 reserved[14];
+ __be16 feature_mask;
+ u8 reserved[12];
u8 user_eids[][SMC_MAX_EID_LEN];
};
@@ -171,6 +172,11 @@ struct smc_clc_msg_proposal { /* clc proposal message sent by Linux */
#define SMC_CLC_MAX_V6_PREFIX 8
#define SMC_CLC_MAX_UEID 8
+#define SMCD_CLC_MAX_V2_GID_ENTRIES 8 /* max # of CHID-GID entries in CLC
+ * proposal SMC-Dv2 extension.
+ * each ISM device takes one entry and
+ * each virtual ISM takes two entries.
+ */
struct smc_clc_msg_proposal_area {
struct smc_clc_msg_proposal pclc_base;
@@ -180,7 +186,8 @@ struct smc_clc_msg_proposal_area {
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_smcd_gid_chid
+ pclc_gidchids[SMCD_CLC_MAX_V2_GID_ENTRIES];
struct smc_clc_msg_trail pclc_trl;
};
@@ -240,9 +247,14 @@ struct smc_clc_first_contact_ext {
struct smc_clc_first_contact_ext_v2x {
struct smc_clc_first_contact_ext fce_v2_base;
- u8 max_conns; /* for SMC-R only */
- u8 max_links; /* for SMC-R only */
- u8 reserved3[2];
+ union {
+ struct {
+ u8 max_conns; /* for SMC-R only */
+ u8 max_links; /* for SMC-R only */
+ };
+ u8 reserved3[2]; /* for SMC-D only */
+ };
+ __be16 feature_mask;
__be32 vendor_exp_options;
u8 reserved4[8];
} __packed; /* format defined in
@@ -259,28 +271,21 @@ struct smc_clc_fce_gid_ext {
struct smc_clc_msg_accept_confirm { /* clc accept / confirm message */
struct smc_clc_msg_hdr hdr;
union {
- struct smcr_clc_msg_accept_confirm r0; /* SMC-R */
- struct { /* SMC-D */
- struct smcd_clc_msg_accept_confirm_common d0;
- u32 reserved5[3];
- };
- };
-} __packed; /* format defined in RFC7609 */
-
-struct smc_clc_msg_accept_confirm_v2 { /* clc accept / confirm message */
- struct smc_clc_msg_hdr hdr;
- union {
struct { /* SMC-R */
struct smcr_clc_msg_accept_confirm r0;
- u8 eid[SMC_MAX_EID_LEN];
- u8 reserved6[8];
- } r1;
+ struct { /* v2 only */
+ u8 eid[SMC_MAX_EID_LEN];
+ u8 reserved6[8];
+ } __packed r1;
+ };
struct { /* SMC-D */
struct smcd_clc_msg_accept_confirm_common d0;
- __be16 chid;
- u8 eid[SMC_MAX_EID_LEN];
- u8 reserved5[8];
- } d1;
+ struct { /* v2 only, but 12 bytes reserved in v1 */
+ __be16 chid;
+ u8 eid[SMC_MAX_EID_LEN];
+ __be64 gid_ext;
+ } __packed d1;
+ };
};
};
@@ -389,24 +394,23 @@ smc_get_clc_smcd_v2_ext(struct smc_clc_v2_extension *prop_v2ext)
}
static inline struct smc_clc_first_contact_ext *
-smc_get_clc_first_contact_ext(struct smc_clc_msg_accept_confirm_v2 *clc_v2,
+smc_get_clc_first_contact_ext(struct smc_clc_msg_accept_confirm *clc,
bool is_smcd)
{
int clc_v2_len;
- if (clc_v2->hdr.version == SMC_V1 ||
- !(clc_v2->hdr.typev2 & SMC_FIRST_CONTACT_MASK))
+ if (clc->hdr.version == SMC_V1 ||
+ !(clc->hdr.typev2 & SMC_FIRST_CONTACT_MASK))
return NULL;
if (is_smcd)
clc_v2_len =
- offsetofend(struct smc_clc_msg_accept_confirm_v2, d1);
+ offsetofend(struct smc_clc_msg_accept_confirm, d1);
else
clc_v2_len =
- offsetofend(struct smc_clc_msg_accept_confirm_v2, r1);
+ offsetofend(struct smc_clc_msg_accept_confirm, r1);
- return (struct smc_clc_first_contact_ext *)(((u8 *)clc_v2) +
- clc_v2_len);
+ return (struct smc_clc_first_contact_ext *)(((u8 *)clc) + clc_v2_len);
}
struct smcd_dev;
@@ -422,7 +426,8 @@ int smc_clc_send_confirm(struct smc_sock *smc, bool clnt_first_contact,
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 *negotiated_eid, struct smc_init_info *ini);
-int smc_clc_srv_v2x_features_validate(struct smc_clc_msg_proposal *pclc,
+int smc_clc_srv_v2x_features_validate(struct smc_sock *smc,
+ struct smc_clc_msg_proposal *pclc,
struct smc_init_info *ini);
int smc_clc_clnt_v2x_features_validate(struct smc_clc_first_contact_ext *fce,
struct smc_init_info *ini);