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The first attempt to fix the "Unable to find wwn login for loop id 2, using loop id instead" problem

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@20 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2006-11-02 10:43:12 +00:00
parent 868a808087
commit 23261f3623
1 changed files with 42 additions and 22 deletions
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64
qla2x00t/qla2x00-target/qla2x00t.c
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@@ -112,7 +112,8 @@ static void q2t_async_event(uint16_t code, scsi_qla_host_t *ha,
static void q2t_ctio_completion(scsi_qla_host_t *ha, uint32_t handle);
static void q2t_host_action(scsi_qla_host_t *ha,
qla2x_tgt_host_action_t action);
static void q2x_send_term_exchange(scsi_qla_host_t *ha, struct q2t_cmd *cmd);
static void q2t_send_term_exchange(scsi_qla_host_t *ha, struct q2t_cmd *cmd,
atio_entry_t *atio);
/*
* Global Variables
@@ -710,7 +711,7 @@ static int q2t_xmit_response(struct scst_cmd *scst_cmd)
prm.cmd->state = Q2T_STATE_ABORTED;
q2x_send_term_exchange(ha, prm.cmd);
q2t_send_term_exchange(ha, prm.cmd, &prm.cmd->atio);
/* !! At this point cmd could be already freed !! */
goto out;
}
@@ -895,10 +896,10 @@ out_unlock:
return res;
}
static void q2x_send_term_exchange(scsi_qla_host_t *ha, struct q2t_cmd *cmd)
static void q2t_send_term_exchange(scsi_qla_host_t *ha, struct q2t_cmd *cmd,
atio_entry_t *atio)
{
ctio_ret_entry_t *ctio;
atio_entry_t *atio = &cmd->atio;
unsigned long flags;
int do_tgt_cmd_done = 0;
@@ -925,14 +926,18 @@ static void q2x_send_term_exchange(scsi_qla_host_t *ha, struct q2t_cmd *cmd)
ctio->entry_type = CTIO_RET_TYPE;
ctio->entry_count = 1;
ctio->handle = q2t_make_handle(ha);
if (ctio->handle != Q2T_NULL_HANDLE) {
ha->cmds[ctio->handle] = cmd;
ctio->handle |= CTIO_COMPLETION_HANDLE_MARK;
} else {
ctio->handle = Q2T_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
do_tgt_cmd_done = 1;
}
if (cmd != NULL) {
ctio->handle = q2t_make_handle(ha);
if (ctio->handle != Q2T_NULL_HANDLE) {
ha->cmds[ctio->handle] = cmd;
} else {
ctio->handle = Q2T_SKIP_HANDLE;
do_tgt_cmd_done = 1;
}
} else
ctio->handle = Q2T_SKIP_HANDLE;
ctio->handle |= CTIO_COMPLETION_HANDLE_MARK;
SET_TARGET_ID(ha, ctio->target, GET_TARGET_ID(ha, atio));
ctio->exchange_id = atio->exchange_id;
@@ -1274,7 +1279,6 @@ static void q2t_alloc_session_done(struct scst_session *scst_sess,
return;
}
static char *q2t_make_name(scsi_qla_host_t *ha, int loop_id)
#ifdef FC_SCST_WWN_AUTH
{
@@ -1303,11 +1307,19 @@ static char *q2t_make_name(scsi_qla_host_t *ha, int loop_id)
}
if (wwn_found == 0) {
PRINT_ERROR("qla2x00tgt(%ld): Unable to find wwn login for "
#if 0
PRINT_ERROR("qla2x00tgt(%ld): Unable to find wwn login for "
"loop id %d, using loop id instead", ha->instance, loop_id);
snprintf(wwn_str, 2*WWN_SIZE, "%d", loop_id);
snprintf(wwn_str, 2*WWN_SIZE, "%d", loop_id);
#else
TRACE_DBG("qla2x00tgt(%ld): Unable to find wwn login for "
"loop id %d", ha->instance, loop_id);
kfree(wwn_str);
wwn_str = NULL;
#endif
}
out:
return wwn_str;
}
@@ -1386,8 +1398,10 @@ static int q2t_send_cmd_to_scst(scsi_qla_host_t *ha, atio_entry_t *atio)
/* register session (remote initiator) */
{
char *name = q2t_make_name(ha, loop_id);
if (name == NULL)
if (name == NULL) {
res = -ESRCH;
goto out_free_sess;
}
sess->scst_sess = scst_register_session(
tgt->scst_tgt, 1, name, sess,
q2t_alloc_session_done);
@@ -1733,6 +1747,7 @@ static void q2t_response_pkt(scsi_qla_host_t *ha, sts_entry_t *pkt)
switch (pkt->entry_type) {
case ACCEPT_TGT_IO_TYPE:
if (ha->flags.enable_target_mode && ha->tgt != NULL) {
int rc;
atio = (atio_entry_t *)pkt;
TRACE_DBG("ACCEPT_TGT_IO instance %ld status %04x "
"lun %04x read/write %d data_length %08x "
@@ -1752,12 +1767,17 @@ static void q2t_response_pkt(scsi_qla_host_t *ha, sts_entry_t *pkt)
}
TRACE_BUFF_FLAG(TRACE_SCSI, "CDB", atio->cdb,
sizeof(atio->cdb));
if (q2t_send_cmd_to_scst(ha, atio) != 0) {
PRINT_INFO("qla2x00tgt(%ld): Unable to send "
"the command to SCSI target "
"mid-level, sending BUSY status",
ha->instance);
q2t_send_busy(ha, atio);
rc = q2t_send_cmd_to_scst(ha, atio);
if (unlikely(rc != 0)) {
if (rc == -ESRCH) {
q2t_send_term_exchange(ha, NULL, atio);
} else {
PRINT_INFO("qla2x00tgt(%ld): Unable to "
"send the command to SCSI target "
"mid-level, sending BUSY status",
ha->instance);
q2t_send_busy(ha, atio);
}
}
} else {
PRINT_ERROR("qla2x00tgt(%ld): ATIO, but target mode "