ha->max_speed_sup ? "32Gps" : "16Gps");
}
+/* ----- */
+
+static ssize_t
+qlini_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ int len = 0;
+
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ "Supported options: enabled | disabled | dual | exclusive\n");
+
+ /* --- */
+ len += scnprintf(buf + len, PAGE_SIZE-len, "Current selection: ");
+
+ switch (vha->qlini_mode) {
+ case QLA2XXX_INI_MODE_EXCLUSIVE:
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ QLA2XXX_INI_MODE_STR_EXCLUSIVE);
+ break;
+ case QLA2XXX_INI_MODE_DISABLED:
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ QLA2XXX_INI_MODE_STR_DISABLED);
+ break;
+ case QLA2XXX_INI_MODE_ENABLED:
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ QLA2XXX_INI_MODE_STR_ENABLED);
+ break;
+ case QLA2XXX_INI_MODE_DUAL:
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ QLA2XXX_INI_MODE_STR_DUAL);
+ break;
+ }
+ len += scnprintf(buf + len, PAGE_SIZE-len, "\n");
+
+ return len;
+}
+
+static char *mode_to_str[] = {
+ "exclusive",
+ "disabled",
+ "enabled",
+ "dual",
+};
+
+#define NEED_EXCH_OFFLOAD(_exchg) ((_exchg) > FW_DEF_EXCHANGES_CNT)
+static int qla_set_ini_mode(scsi_qla_host_t *vha, int op)
+{
+ int rc = 0;
+ enum {
+ NO_ACTION,
+ MODE_CHANGE_ACCEPT,
+ MODE_CHANGE_NO_ACTION,
+ TARGET_STILL_ACTIVE,
+ };
+ int action = NO_ACTION;
+ int set_mode = 0;
+ u8 eo_toggle = 0; /* exchange offload flipped */
+
+ switch (vha->qlini_mode) {
+ case QLA2XXX_INI_MODE_DISABLED:
+ switch (op) {
+ case QLA2XXX_INI_MODE_DISABLED:
+ if (qla_tgt_mode_enabled(vha)) {
+ if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld) !=
+ vha->hw->flags.exchoffld_enabled)
+ eo_toggle = 1;
+ if (((vha->ql2xexchoffld !=
+ vha->u_ql2xexchoffld) &&
+ NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld)) ||
+ eo_toggle) {
+ /*
+ * The number of exchange to be offload
+ * was tweaked or offload option was
+ * flipped
+ */
+ action = MODE_CHANGE_ACCEPT;
+ } else {
+ action = MODE_CHANGE_NO_ACTION;
+ }
+ } else {
+ action = MODE_CHANGE_NO_ACTION;
+ }
+ break;
+ case QLA2XXX_INI_MODE_EXCLUSIVE:
+ if (qla_tgt_mode_enabled(vha)) {
+ if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld) !=
+ vha->hw->flags.exchoffld_enabled)
+ eo_toggle = 1;
+ if (((vha->ql2xexchoffld !=
+ vha->u_ql2xexchoffld) &&
+ NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld)) ||
+ eo_toggle) {
+ /*
+ * The number of exchange to be offload
+ * was tweaked or offload option was
+ * flipped
+ */
+ action = MODE_CHANGE_ACCEPT;
+ } else {
+ action = MODE_CHANGE_NO_ACTION;
+ }
+ } else {
+ action = MODE_CHANGE_ACCEPT;
+ }
+ break;
+ case QLA2XXX_INI_MODE_DUAL:
+ action = MODE_CHANGE_ACCEPT;
+ /* active_mode is target only, reset it to dual */
+ if (qla_tgt_mode_enabled(vha)) {
+ set_mode = 1;
+ action = MODE_CHANGE_ACCEPT;
+ } else {
+ action = MODE_CHANGE_NO_ACTION;
+ }
+ break;
+
+ case QLA2XXX_INI_MODE_ENABLED:
+ if (qla_tgt_mode_enabled(vha))
+ action = TARGET_STILL_ACTIVE;
+ else {
+ action = MODE_CHANGE_ACCEPT;
+ set_mode = 1;
+ }
+ break;
+ }
+ break;
+
+ case QLA2XXX_INI_MODE_EXCLUSIVE:
+ switch (op) {
+ case QLA2XXX_INI_MODE_EXCLUSIVE:
+ if (qla_tgt_mode_enabled(vha)) {
+ if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld) !=
+ vha->hw->flags.exchoffld_enabled)
+ eo_toggle = 1;
+ if (((vha->ql2xexchoffld !=
+ vha->u_ql2xexchoffld) &&
+ NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld)) ||
+ eo_toggle)
+ /*
+ * The number of exchange to be offload
+ * was tweaked or offload option was
+ * flipped
+ */
+ action = MODE_CHANGE_ACCEPT;
+ else
+ action = NO_ACTION;
+ } else
+ action = NO_ACTION;
+
+ break;
+
+ case QLA2XXX_INI_MODE_DISABLED:
+ if (qla_tgt_mode_enabled(vha)) {
+ if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld) !=
+ vha->hw->flags.exchoffld_enabled)
+ eo_toggle = 1;
+ if (((vha->ql2xexchoffld !=
+ vha->u_ql2xexchoffld) &&
+ NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld)) ||
+ eo_toggle)
+ action = MODE_CHANGE_ACCEPT;
+ else
+ action = MODE_CHANGE_NO_ACTION;
+ } else
+ action = MODE_CHANGE_NO_ACTION;
+ break;
+
+ case QLA2XXX_INI_MODE_DUAL: /* exclusive -> dual */
+ if (qla_tgt_mode_enabled(vha)) {
+ action = MODE_CHANGE_ACCEPT;
+ set_mode = 1;
+ } else
+ action = MODE_CHANGE_ACCEPT;
+ break;
+
+ case QLA2XXX_INI_MODE_ENABLED:
+ if (qla_tgt_mode_enabled(vha))
+ action = TARGET_STILL_ACTIVE;
+ else {
+ if (vha->hw->flags.fw_started)
+ action = MODE_CHANGE_NO_ACTION;
+ else
+ action = MODE_CHANGE_ACCEPT;
+ }
+ break;
+ }
+ break;
+
+ case QLA2XXX_INI_MODE_ENABLED:
+ switch (op) {
+ case QLA2XXX_INI_MODE_ENABLED:
+ if (NEED_EXCH_OFFLOAD(vha->u_ql2xiniexchg) !=
+ vha->hw->flags.exchoffld_enabled)
+ eo_toggle = 1;
+ if (((vha->ql2xiniexchg != vha->u_ql2xiniexchg) &&
+ NEED_EXCH_OFFLOAD(vha->u_ql2xiniexchg)) ||
+ eo_toggle)
+ action = MODE_CHANGE_ACCEPT;
+ else
+ action = NO_ACTION;
+ break;
+ case QLA2XXX_INI_MODE_DUAL:
+ case QLA2XXX_INI_MODE_DISABLED:
+ action = MODE_CHANGE_ACCEPT;
+ break;
+ default:
+ action = MODE_CHANGE_NO_ACTION;
+ break;
+ }
+ break;
+
+ case QLA2XXX_INI_MODE_DUAL:
+ switch (op) {
+ case QLA2XXX_INI_MODE_DUAL:
+ if (qla_tgt_mode_enabled(vha) ||
+ qla_dual_mode_enabled(vha)) {
+ if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld +
+ vha->u_ql2xiniexchg) !=
+ vha->hw->flags.exchoffld_enabled)
+ eo_toggle = 1;
+
+ if ((((vha->ql2xexchoffld +
+ vha->ql2xiniexchg) !=
+ (vha->u_ql2xiniexchg +
+ vha->u_ql2xexchoffld)) &&
+ NEED_EXCH_OFFLOAD(vha->u_ql2xiniexchg +
+ vha->u_ql2xexchoffld)) || eo_toggle)
+ action = MODE_CHANGE_ACCEPT;
+ else
+ action = NO_ACTION;
+ } else {
+ if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld +
+ vha->u_ql2xiniexchg) !=
+ vha->hw->flags.exchoffld_enabled)
+ eo_toggle = 1;
+
+ if ((((vha->ql2xexchoffld + vha->ql2xiniexchg)
+ != (vha->u_ql2xiniexchg +
+ vha->u_ql2xexchoffld)) &&
+ NEED_EXCH_OFFLOAD(vha->u_ql2xiniexchg +
+ vha->u_ql2xexchoffld)) || eo_toggle)
+ action = MODE_CHANGE_NO_ACTION;
+ else
+ action = NO_ACTION;
+ }
+ break;
+
+ case QLA2XXX_INI_MODE_DISABLED:
+ if (qla_tgt_mode_enabled(vha) ||
+ qla_dual_mode_enabled(vha)) {
+ /* turning off initiator mode */
+ set_mode = 1;
+ action = MODE_CHANGE_ACCEPT;
+ } else {
+ action = MODE_CHANGE_NO_ACTION;
+ }
+ break;
+
+ case QLA2XXX_INI_MODE_EXCLUSIVE:
+ if (qla_tgt_mode_enabled(vha) ||
+ qla_dual_mode_enabled(vha)) {
+ set_mode = 1;
+ action = MODE_CHANGE_ACCEPT;
+ } else {
+ action = MODE_CHANGE_ACCEPT;
+ }
+ break;
+
+ case QLA2XXX_INI_MODE_ENABLED:
+ if (qla_tgt_mode_enabled(vha) ||
+ qla_dual_mode_enabled(vha)) {
+ action = TARGET_STILL_ACTIVE;
+ } else {
+ action = MODE_CHANGE_ACCEPT;
+ }
+ }
+ break;
+ }
+
+ switch (action) {
+ case MODE_CHANGE_ACCEPT:
+ ql_log(ql_log_warn, vha, 0xffff,
+ "Mode change accepted. From %s to %s, Tgt exchg %d|%d. ini exchg %d|%d\n",
+ mode_to_str[vha->qlini_mode], mode_to_str[op],
+ vha->ql2xexchoffld, vha->u_ql2xexchoffld,
+ vha->ql2xiniexchg, vha->u_ql2xiniexchg);
+
+ vha->qlini_mode = op;
+ vha->ql2xexchoffld = vha->u_ql2xexchoffld;
+ vha->ql2xiniexchg = vha->u_ql2xiniexchg;
+ if (set_mode)
+ qlt_set_mode(vha);
+ vha->flags.online = 1;
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
+
+ case MODE_CHANGE_NO_ACTION:
+ ql_log(ql_log_warn, vha, 0xffff,
+ "Mode is set. No action taken. From %s to %s, Tgt exchg %d|%d. ini exchg %d|%d\n",
+ mode_to_str[vha->qlini_mode], mode_to_str[op],
+ vha->ql2xexchoffld, vha->u_ql2xexchoffld,
+ vha->ql2xiniexchg, vha->u_ql2xiniexchg);
+ vha->qlini_mode = op;
+ vha->ql2xexchoffld = vha->u_ql2xexchoffld;
+ vha->ql2xiniexchg = vha->u_ql2xiniexchg;
+ break;
+
+ case TARGET_STILL_ACTIVE:
+ ql_log(ql_log_warn, vha, 0xffff,
+ "Target Mode is active. Unable to change Mode.\n");
+ break;
+
+ case NO_ACTION:
+ default:
+ ql_log(ql_log_warn, vha, 0xffff,
+ "Mode unchange. No action taken. %d|%d pct %d|%d.\n",
+ vha->qlini_mode, op,
+ vha->ql2xexchoffld, vha->u_ql2xexchoffld);
+ break;
+ }
+
+ return rc;
+}
+
+static ssize_t
+qlini_mode_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ int ini;
+
+ if (!buf)
+ return -EINVAL;
+
+ if (strncasecmp(QLA2XXX_INI_MODE_STR_EXCLUSIVE, buf,
+ strlen(QLA2XXX_INI_MODE_STR_EXCLUSIVE)) == 0)
+ ini = QLA2XXX_INI_MODE_EXCLUSIVE;
+ else if (strncasecmp(QLA2XXX_INI_MODE_STR_DISABLED, buf,
+ strlen(QLA2XXX_INI_MODE_STR_DISABLED)) == 0)
+ ini = QLA2XXX_INI_MODE_DISABLED;
+ else if (strncasecmp(QLA2XXX_INI_MODE_STR_ENABLED, buf,
+ strlen(QLA2XXX_INI_MODE_STR_ENABLED)) == 0)
+ ini = QLA2XXX_INI_MODE_ENABLED;
+ else if (strncasecmp(QLA2XXX_INI_MODE_STR_DUAL, buf,
+ strlen(QLA2XXX_INI_MODE_STR_DUAL)) == 0)
+ ini = QLA2XXX_INI_MODE_DUAL;
+ else
+ return -EINVAL;
+
+ qla_set_ini_mode(vha, ini);
+ return strlen(buf);
+}
+
+static ssize_t
+ql2xexchoffld_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ int len = 0;
+
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ "target exchange: new %d : current: %d\n\n",
+ vha->u_ql2xexchoffld, vha->ql2xexchoffld);
+
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ "Please (re)set operating mode via \"/sys/class/scsi_host/host%ld/qlini_mode\" to load new setting.\n",
+ vha->host_no);
+
+ return len;
+}
+
+static ssize_t
+ql2xexchoffld_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ int val = 0;
+
+ if (sscanf(buf, "%d", &val) != 1)
+ return -EINVAL;
+
+ if (val > FW_MAX_EXCHANGES_CNT)
+ val = FW_MAX_EXCHANGES_CNT;
+ else if (val < 0)
+ val = 0;
+
+ vha->u_ql2xexchoffld = val;
+ return strlen(buf);
+}
+
+static ssize_t
+ql2xiniexchg_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ int len = 0;
+
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ "target exchange: new %d : current: %d\n\n",
+ vha->u_ql2xiniexchg, vha->ql2xiniexchg);
+
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ "Please (re)set operating mode via \"/sys/class/scsi_host/host%ld/qlini_mode\" to load new setting.\n",
+ vha->host_no);
+
+ return len;
+}
+
+static ssize_t
+ql2xiniexchg_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ int val = 0;
+
+ if (sscanf(buf, "%d", &val) != 1)
+ return -EINVAL;
+
+ if (val > FW_MAX_EXCHANGES_CNT)
+ val = FW_MAX_EXCHANGES_CNT;
+ else if (val < 0)
+ val = 0;
+
+ vha->u_ql2xiniexchg = val;
+ return strlen(buf);
+}
+
static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL);
static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
static DEVICE_ATTR(zio_threshold, 0644,
qla_zio_threshold_show,
qla_zio_threshold_store);
+static DEVICE_ATTR_RW(qlini_mode);
+static DEVICE_ATTR_RW(ql2xexchoffld);
+static DEVICE_ATTR_RW(ql2xiniexchg);
+
struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_driver_version,
&dev_attr_min_link_speed,
&dev_attr_max_speed_sup,
&dev_attr_zio_threshold,
+ NULL, /* reserve for qlini_mode */
+ NULL, /* reserve for ql2xiniexchg */
+ NULL, /* reserve for ql2xexchoffld */
NULL,
};
+void qla_insert_tgt_attrs(void)
+{
+ struct device_attribute **attr;
+
+ /* advance to empty slot */
+ for (attr = &qla2x00_host_attrs[0]; *attr; ++attr)
+ continue;
+
+ *attr = &dev_attr_qlini_mode;
+ attr++;
+ *attr = &dev_attr_ql2xiniexchg;
+ attr++;
+ *attr = &dev_attr_ql2xexchoffld;
+}
+
/* Host attributes. */
static void
qla2x00_number_of_exch(scsi_qla_host_t *vha, u32 *ret_cnt, u16 max_cnt)
{
u32 temp;
+ struct init_cb_81xx *icb = (struct init_cb_81xx *)&vha->hw->init_cb;
*ret_cnt = FW_DEF_EXCHANGES_CNT;
if (max_cnt > vha->hw->max_exchg)
max_cnt = vha->hw->max_exchg;
if (qla_ini_mode_enabled(vha)) {
- if (ql2xiniexchg > max_cnt)
- ql2xiniexchg = max_cnt;
+ if (vha->ql2xiniexchg > max_cnt)
+ vha->ql2xiniexchg = max_cnt;
+
+ if (vha->ql2xiniexchg > FW_DEF_EXCHANGES_CNT)
+ *ret_cnt = vha->ql2xiniexchg;
- if (ql2xiniexchg > FW_DEF_EXCHANGES_CNT)
- *ret_cnt = ql2xiniexchg;
} else if (qla_tgt_mode_enabled(vha)) {
- if (ql2xexchoffld > max_cnt)
- ql2xexchoffld = max_cnt;
+ if (vha->ql2xexchoffld > max_cnt) {
+ vha->ql2xexchoffld = max_cnt;
+ icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
+ }
- if (ql2xexchoffld > FW_DEF_EXCHANGES_CNT)
- *ret_cnt = ql2xexchoffld;
+ if (vha->ql2xexchoffld > FW_DEF_EXCHANGES_CNT)
+ *ret_cnt = vha->ql2xexchoffld;
} else if (qla_dual_mode_enabled(vha)) {
- temp = ql2xiniexchg + ql2xexchoffld;
+ temp = vha->ql2xiniexchg + vha->ql2xexchoffld;
if (temp > max_cnt) {
- ql2xiniexchg -= (temp - max_cnt)/2;
- ql2xexchoffld -= (((temp - max_cnt)/2) + 1);
+ vha->ql2xiniexchg -= (temp - max_cnt)/2;
+ vha->ql2xexchoffld -= (((temp - max_cnt)/2) + 1);
temp = max_cnt;
+ icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
}
if (temp > FW_DEF_EXCHANGES_CNT)
if (totsz != ha->exchoffld_size) {
qla2x00_free_exchoffld_buffer(ha);
+ if (actual_cnt <= FW_DEF_EXCHANGES_CNT) {
+ ha->exchoffld_size = 0;
+ ha->flags.exchoffld_enabled = 0;
+ return QLA_SUCCESS;
+ }
+
ha->exchoffld_size = totsz;
ql_log(ql_log_info, vha, 0xd016,
return -ENOMEM;
}
+ } else if (!ha->exchoffld_buf || (actual_cnt <= FW_DEF_EXCHANGES_CNT)) {
+ /* pathological case */
+ qla2x00_free_exchoffld_buffer(ha);
+ ha->exchoffld_size = 0;
+ ha->flags.exchoffld_enabled = 0;
+ ql_log(ql_log_info, vha, 0xd016,
+ "Exchange offload not enable: offld size=%d, actual count=%d entry sz=0x%x, total sz=0x%x.\n",
+ ha->exchoffld_size, actual_cnt, size, totsz);
+ return 0;
}
/* Now configure the dma buffer */
if (qla_ini_mode_enabled(vha))
icb->exchange_count = 0;
else
- icb->exchange_count = cpu_to_le16(ql2xexchoffld);
+ icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
}
return rval;
vha->host_no = host->host_no;
vha->hw = ha;
+ vha->qlini_mode = ql2x_ini_mode;
+ vha->ql2xexchoffld = ql2xexchoffld;
+ vha->ql2xiniexchg = ql2xiniexchg;
+
INIT_LIST_HEAD(&vha->vp_fcports);
INIT_LIST_HEAD(&vha->work_list);
INIT_LIST_HEAD(&vha->list);
!test_bit(UNLOADING, &base_vha->dpc_flags)) {
bool do_reset = true;
- switch (ql2x_ini_mode) {
+ switch (base_vha->qlini_mode) {
case QLA2XXX_INI_MODE_ENABLED:
break;
case QLA2XXX_INI_MODE_DISABLED:
- if (!qla_tgt_mode_enabled(base_vha))
+ if (!qla_tgt_mode_enabled(base_vha) &&
+ !ha->flags.fw_started)
do_reset = false;
break;
case QLA2XXX_INI_MODE_DUAL:
- if (!qla_dual_mode_enabled(base_vha))
+ if (!qla_dual_mode_enabled(base_vha) &&
+ !ha->flags.fw_started)
do_reset = false;
break;
default:
if (ql2xextended_error_logging == 1)
ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
+ if (ql2x_ini_mode == QLA2XXX_INI_MODE_DUAL)
+ qla_insert_tgt_attrs();
+
qla2xxx_transport_template =
fc_attach_transport(&qla2xxx_transport_functions);
if (!qla2xxx_transport_template) {
projects / linux.git / commitdiff