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Make q24_send_busy() a bit more reliable

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3229 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2011-01-21 13:11:30 +00:00
parent 8d0f61f71a
commit 4da198c5c4
1 changed files with 28 additions and 6 deletions
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qla2x00t/qla2x00-target/qla2x00t.c
+28 -6
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@@ -276,6 +276,20 @@ static inline struct q2t_sess *q2t_find_sess_by_loop_id(struct q2t_tgt *tgt,
return NULL;
}
/* pha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) */
static inline struct q2t_sess *q2t_find_sess_by_s_id_include_deleted(
struct q2t_tgt *tgt, const uint8_t *s_id)
{
struct q2t_sess *sess;
list_for_each_entry(sess, &tgt->sess_list, sess_list_entry) {
if ((sess->s_id.b.al_pa == s_id[2]) &&
(sess->s_id.b.area == s_id[1]) &&
(sess->s_id.b.domain == s_id[0]))
return sess;
}
return NULL;
}
/* pha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) */
static inline struct q2t_sess *q2t_find_sess_by_s_id(struct q2t_tgt *tgt,
const uint8_t *s_id)
@@ -4806,14 +4820,22 @@ static void q24_send_busy(scsi_qla_host_t *ha, atio7_entry_t *atio,
{
ctio7_status1_entry_t *ctio;
struct q2t_sess *sess;
uint16_t loop_id;
TRACE_ENTRY();
sess = q2t_find_sess_by_s_id(ha->tgt, atio->fcp_hdr.s_id);
if (sess == NULL) {
q24_send_term_exchange(ha, NULL, atio, 1);
goto out;
}
/*
* In some cases, for instance for ATIO_EXCHANGE_ADDRESS_UNKNOWN, the
* spec requires to issue queue full SCSI status. So, let's search among
* being deleted sessions as well and use CTIO7_NHANDLE_UNRECOGNIZED,
* if we can't find sess.
*/
sess = q2t_find_sess_by_s_id_include_deleted(ha->tgt,
atio->fcp_hdr.s_id);
if (sess != NULL)
loop_id = sess->loop_id;
else
loop_id = CTIO7_NHANDLE_UNRECOGNIZED;
/* Sending marker isn't necessary, since we called from ISR */
@@ -4827,7 +4849,7 @@ static void q24_send_busy(scsi_qla_host_t *ha, atio7_entry_t *atio,
ctio->common.entry_type = CTIO_TYPE7;
ctio->common.entry_count = 1;
ctio->common.handle = Q2T_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
ctio->common.nport_handle = sess->loop_id;
ctio->common.nport_handle = loop_id;
ctio->common.timeout = __constant_cpu_to_le16(Q2T_TIMEOUT);
ctio->common.vp_index = ha->vp_idx;
ctio->common.initiator_id[0] = atio->fcp_hdr.s_id[2];