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Add negotiation of MaxOutstandingR2T and ErrorRecoveryLevel during login phase

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This commit is contained in:
Ronnie Sahlberg
2011-01-01 11:51:09 +11:00
parent 27038e5c8b
commit 820fffe04e
1 changed files with 52 additions and 0 deletions
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52
lib/login.c
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@@ -348,6 +348,46 @@ iscsi_login_add_defaulttime2retain(struct iscsi_context *iscsi, struct iscsi_pdu
return 0;
}
static int
iscsi_login_add_maxoutstandingr2t(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
{
char *str;
/* We only send MaxOutstandingR2T during opneg */
if (iscsi->current_phase != ISCSI_PDU_LOGIN_CSG_OPNEG) {
return 0;
}
str = (char *)"MaxOutstandingR2T=1";
if (iscsi_pdu_add_data(iscsi, pdu, (unsigned char *)str, strlen(str)+1)
!= 0) {
iscsi_set_error(iscsi, "Out-of-memory: pdu add data failed.");
return -1;
}
return 0;
}
static int
iscsi_login_add_errorrecoverylevel(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
{
char *str;
/* We only send ErrorRecoveryLevel during opneg */
if (iscsi->current_phase != ISCSI_PDU_LOGIN_CSG_OPNEG) {
return 0;
}
str = (char *)"ErrorRecoveryLevel=0";
if (iscsi_pdu_add_data(iscsi, pdu, (unsigned char *)str, strlen(str)+1)
!= 0) {
iscsi_set_error(iscsi, "Out-of-memory: pdu add data failed.");
return -1;
}
return 0;
}
static int
iscsi_login_add_datasequenceinorder(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
{
@@ -683,6 +723,18 @@ iscsi_login_async(struct iscsi_context *iscsi, iscsi_command_cb cb,
return -1;
}
/* max outstanding r2t */
if (iscsi_login_add_maxoutstandingr2t(iscsi, pdu) != 0) {
iscsi_free_pdu(iscsi, pdu);
return -1;
}
/* errorrecoverylevel */
if (iscsi_login_add_errorrecoverylevel(iscsi, pdu) != 0) {
iscsi_free_pdu(iscsi, pdu);
return -1;
}
/* max recv data segment length */
if (iscsi_login_add_maxrecvdatasegmentlength(iscsi, pdu) != 0) {
iscsi_free_pdu(iscsi, pdu);