return false;
} else {
if (hdr->typev1 == SMC_TYPE_D &&
- ntohs(hdr->length) != SMCD_CLC_ACCEPT_CONFIRM_LEN_V2 &&
- (ntohs(hdr->length) != SMCD_CLC_ACCEPT_CONFIRM_LEN_V2 +
- sizeof(struct smc_clc_first_contact_ext)))
+ ntohs(hdr->length) < SMCD_CLC_ACCEPT_CONFIRM_LEN_V2)
return false;
if (hdr->typev1 == SMC_TYPE_R &&
ntohs(hdr->length) < SMCR_CLC_ACCEPT_CONFIRM_LEN_V2)
return true;
}
-static void smc_clc_fill_fce(struct smc_clc_first_contact_ext *fce, int *len, int release_nr)
+static int smc_clc_fill_fce(struct smc_clc_first_contact_ext_v2x *fce,
+ struct smc_init_info *ini)
{
+ int ret = sizeof(*fce);
+
memset(fce, 0, sizeof(*fce));
- fce->os_type = SMC_CLC_OS_LINUX;
- fce->release = release_nr;
- memcpy(fce->hostname, smc_hostname, sizeof(smc_hostname));
- (*len) += sizeof(*fce);
+ fce->fce_v2_base.os_type = SMC_CLC_OS_LINUX;
+ fce->fce_v2_base.release = ini->release_nr;
+ memcpy(fce->fce_v2_base.hostname, smc_hostname, sizeof(smc_hostname));
+ if (ini->is_smcd && ini->release_nr < SMC_RELEASE_1)
+ ret = sizeof(struct smc_clc_first_contact_ext);
+
+ return ret;
}
/* check if received message has a correct header length and contains valid
u8 *eid, struct smc_init_info *ini)
{
struct smc_connection *conn = &smc->conn;
+ struct smc_clc_first_contact_ext_v2x fce;
struct smc_clc_msg_accept_confirm *clc;
- struct smc_clc_first_contact_ext fce;
struct smc_clc_fce_gid_ext gle;
struct smc_clc_msg_trail trl;
+ int i, len, fce_len;
struct kvec vec[5];
struct msghdr msg;
- int i, len;
/* send SMC Confirm CLC msg */
clc = (struct smc_clc_msg_accept_confirm *)clc_v2;
if (eid && eid[0])
memcpy(clc_v2->d1.eid, eid, SMC_MAX_EID_LEN);
len = SMCD_CLC_ACCEPT_CONFIRM_LEN_V2;
- if (first_contact)
- smc_clc_fill_fce(&fce, &len, ini->release_nr);
+ if (first_contact) {
+ fce_len = smc_clc_fill_fce(&fce, ini);
+ len += fce_len;
+ }
clc_v2->hdr.length = htons(len);
}
memcpy(trl.eyecatcher, SMCD_EYECATCHER,
memcpy(clc_v2->r1.eid, eid, SMC_MAX_EID_LEN);
len = SMCR_CLC_ACCEPT_CONFIRM_LEN_V2;
if (first_contact) {
- smc_clc_fill_fce(&fce, &len, ini->release_nr);
- fce.v2_direct = !link->lgr->uses_gateway;
- memset(&gle, 0, sizeof(gle));
+ fce_len = smc_clc_fill_fce(&fce, ini);
+ len += fce_len;
+ fce.fce_v2_base.v2_direct = !link->lgr->uses_gateway;
if (clc->hdr.type == SMC_CLC_CONFIRM) {
+ memset(&gle, 0, sizeof(gle));
gle.gid_cnt = ini->smcrv2.gidlist.len;
len += sizeof(gle);
len += gle.gid_cnt * sizeof(gle.gid[0]);
- } else {
- len += sizeof(gle.reserved);
}
}
clc_v2->hdr.length = htons(len);
sizeof(trl);
if (version > SMC_V1 && first_contact) {
vec[i].iov_base = &fce;
- vec[i++].iov_len = sizeof(fce);
+ vec[i++].iov_len = fce_len;
if (!conn->lgr->is_smcd) {
if (clc->hdr.type == SMC_CLC_CONFIRM) {
vec[i].iov_base = &gle;
vec[i].iov_base = &ini->smcrv2.gidlist.list;
vec[i++].iov_len = gle.gid_cnt *
sizeof(gle.gid[0]);
- } else {
- vec[i].iov_base = &gle.reserved;
- vec[i++].iov_len = sizeof(gle.reserved);
}
}
}
struct smc_clc_msg_smcd { /* SMC-D GID information */
struct smc_clc_smcd_gid_chid ism; /* ISM native GID+CHID of requestor */
__be16 v2_ext_offset; /* SMC Version 2 Extension Offset */
- u8 reserved[28];
+ u8 vendor_oui[3]; /* vendor organizationally unique identifier */
+ u8 vendor_exp_options[5];
+ u8 reserved[20];
};
struct smc_clc_smcd_v2_extension {
u8 hostname[SMC_MAX_HOSTNAME_LEN];
};
+struct smc_clc_first_contact_ext_v2x {
+ struct smc_clc_first_contact_ext fce_v2_base;
+ u8 reserved3[4];
+ __be32 vendor_exp_options;
+ u8 reserved4[8];
+} __packed; /* format defined in
+ * IBM Shared Memory Communications Version 2 (Third Edition)
+ * (https://www.ibm.com/support/pages/node/7009315)
+ */
+
struct smc_clc_fce_gid_ext {
- u8 reserved[16];
u8 gid_cnt;
u8 reserved2[3];
u8 gid[][SMC_GID_SIZE];