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[SCSI] qla2xxx: Correct EH bus-reset handling. 

Target-level resets are unlikely to complete if done after the
bus (LIP/OLS/NOS) has been reset.  Perform target-level resets,
if necessary, prior to hitting the bus.

Cc: stable@kernel.org
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Andrew Vasquez 2010-02-18 10:07:25 -08:00 committed by James Bottomley
parent db3ad7f885
commit 55e5ed273d
1 changed files with 14 additions and 13 deletions
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27
drivers/scsi/qla2xxx/qla_os.c
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@ -1095,6 +1095,20 @@ qla2x00_loop_reset(scsi_qla_host_t *vha)
struct fc_port *fcport; struct fc_port *fcport;
struct qla_hw_data *ha = vha->hw; struct qla_hw_data *ha = vha->hw;
if (ha->flags.enable_target_reset) {
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->port_type != FCT_TARGET)
continue;
ret = ha->isp_ops->target_reset(fcport, 0, 0);
if (ret != QLA_SUCCESS) {
DEBUG2_3(printk("%s(%ld): bus_reset failed: "
"target_reset=%d d_id=%x.\n", __func__,
vha->host_no, ret, fcport->d_id.b24));
}
}
}
if (ha->flags.enable_lip_full_login && !IS_QLA81XX(ha)) { if (ha->flags.enable_lip_full_login && !IS_QLA81XX(ha)) {
ret = qla2x00_full_login_lip(vha); ret = qla2x00_full_login_lip(vha);
if (ret != QLA_SUCCESS) { if (ret != QLA_SUCCESS) {
@ -1117,19 +1131,6 @@ qla2x00_loop_reset(scsi_qla_host_t *vha)
qla2x00_wait_for_loop_ready(vha); qla2x00_wait_for_loop_ready(vha);
} }
if (ha->flags.enable_target_reset) {
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->port_type != FCT_TARGET)
continue;
ret = ha->isp_ops->target_reset(fcport, 0, 0);
if (ret != QLA_SUCCESS) {
DEBUG2_3(printk("%s(%ld): bus_reset failed: "
"target_reset=%d d_id=%x.\n", __func__,
vha->host_no, ret, fcport->d_id.b24));
}
}
}
/* Issue marker command only when we are going to start the I/O */ /* Issue marker command only when we are going to start the I/O */
vha->marker_needed = 1; vha->marker_needed = 1;