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-rw-r--r--drivers/s390/net/qeth_core.h3
-rw-r--r--drivers/s390/net/qeth_core_mpc.h11
-rw-r--r--drivers/s390/net/qeth_l2.h2
-rw-r--r--drivers/s390/net/qeth_l2_main.c135
-rw-r--r--drivers/s390/net/qeth_l2_sys.c44
5 files changed, 190 insertions, 5 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 2236c0c9744a..e3d3609cd9e7 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -188,6 +188,9 @@ struct qeth_vnicc_info {
u32 cur_chars;
/* supported commands: bitmasks which VNICCs support respective cmd */
u32 set_char_sup;
+ u32 getset_timeout_sup;
+ /* timeout value for the learning characteristic */
+ u32 learning_timeout;
/* characteristics wanted/configured by user */
u32 wanted_chars;
/* has user explicitly enabled rx_bcast while online? */
diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h
index 7f67a81a2ae6..2f1f0da3d089 100644
--- a/drivers/s390/net/qeth_core_mpc.h
+++ b/drivers/s390/net/qeth_core_mpc.h
@@ -562,6 +562,8 @@ struct qeth_ipacmd_diagass {
#define IPA_VNICC_QUERY_CMDS 0x00000001L
#define IPA_VNICC_ENABLE 0x00000002L
#define IPA_VNICC_DISABLE 0x00000004L
+#define IPA_VNICC_SET_TIMEOUT 0x00000008L
+#define IPA_VNICC_GET_TIMEOUT 0x00000010L
/* VNICC flags */
#define QETH_VNICC_FLOODING 0x80000000
@@ -575,6 +577,8 @@ struct qeth_ipacmd_diagass {
/* VNICC default values */
#define QETH_VNICC_ALL 0xff000000
#define QETH_VNICC_DEFAULT QETH_VNICC_RX_BCAST
+/* default VNICC timeout in seconds */
+#define QETH_VNICC_DEFAULT_TIMEOUT 600
/* VNICC header */
struct qeth_ipacmd_vnicc_hdr {
@@ -600,6 +604,12 @@ struct qeth_vnicc_set_char {
u32 vnic_char;
};
+/* get/set timeout for VNIC characteristic */
+struct qeth_vnicc_getset_timeout {
+ u32 vnic_char;
+ u32 timeout;
+};
+
/* complete VNICC IPA command message */
struct qeth_ipacmd_vnicc {
struct qeth_ipacmd_vnicc_hdr hdr;
@@ -607,6 +617,7 @@ struct qeth_ipacmd_vnicc {
union {
struct qeth_vnicc_query_cmds query_cmds;
struct qeth_vnicc_set_char set_char;
+ struct qeth_vnicc_getset_timeout getset_timeout;
};
};
diff --git a/drivers/s390/net/qeth_l2.h b/drivers/s390/net/qeth_l2.h
index 0619018c76f9..241df6b98ab4 100644
--- a/drivers/s390/net/qeth_l2.h
+++ b/drivers/s390/net/qeth_l2.h
@@ -16,6 +16,8 @@ void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card);
int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state);
int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state);
+int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout);
+int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout);
bool qeth_l2_vnicc_is_in_use(struct qeth_card *card);
struct qeth_mac {
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 36a7fd7255e3..25a0f381bcd5 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -35,6 +35,8 @@ static void qeth_bridge_host_event(struct qeth_card *card,
struct qeth_ipa_cmd *cmd);
static void qeth_l2_vnicc_set_defaults(struct qeth_card *card);
static void qeth_l2_vnicc_init(struct qeth_card *card);
+static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc,
+ u32 *timeout);
static int qeth_l2_verify_dev(struct net_device *dev)
{
@@ -2096,9 +2098,13 @@ struct _qeth_l2_vnicc_request_cbctl {
u32 sub_cmd;
struct {
u32 vnic_char;
+ u32 timeout;
} param;
struct {
- u32 *sup_cmds;
+ union{
+ u32 *sup_cmds;
+ u32 *timeout;
+ };
} result;
};
@@ -2122,6 +2128,9 @@ static int qeth_l2_vnicc_request_cb(struct qeth_card *card,
if (cbctl->sub_cmd == IPA_VNICC_QUERY_CMDS)
*cbctl->result.sup_cmds = rep->query_cmds.sup_cmds;
+ if (cbctl->sub_cmd == IPA_VNICC_GET_TIMEOUT)
+ *cbctl->result.timeout = rep->getset_timeout.timeout;
+
return 0;
}
@@ -2162,6 +2171,13 @@ static int qeth_l2_vnicc_request(struct qeth_card *card,
req->sub_hdr.data_length += sizeof(req->set_char);
req->set_char.vnic_char = cbctl->param.vnic_char;
break;
+ case IPA_VNICC_SET_TIMEOUT:
+ req->getset_timeout.timeout = cbctl->param.timeout;
+ /* fallthrough */
+ case IPA_VNICC_GET_TIMEOUT:
+ req->sub_hdr.data_length += sizeof(req->getset_timeout);
+ req->getset_timeout.vnic_char = cbctl->param.vnic_char;
+ break;
default:
qeth_release_buffer(iob->channel, iob);
return -EOPNOTSUPP;
@@ -2215,6 +2231,24 @@ static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char,
return qeth_l2_vnicc_request(card, &cbctl);
}
+/* VNICC get/set timeout for characteristic request */
+static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc,
+ u32 cmd, u32 *timeout)
+{
+ struct _qeth_l2_vnicc_request_cbctl cbctl;
+
+ /* prepare callback control */
+ cbctl.sub_cmd = cmd;
+ cbctl.param.vnic_char = vnicc;
+ if (cmd == IPA_VNICC_SET_TIMEOUT)
+ cbctl.param.timeout = *timeout;
+ if (cmd == IPA_VNICC_GET_TIMEOUT)
+ cbctl.result.timeout = timeout;
+
+ QETH_CARD_TEXT(card, 2, "vniccgst");
+ return qeth_l2_vnicc_request(card, &cbctl);
+}
+
/* set current VNICC flag state; called from sysfs store function */
int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state)
{
@@ -2258,8 +2292,14 @@ int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state)
if (rc)
card->options.vnicc.wanted_chars =
card->options.vnicc.cur_chars;
- else if (state && vnicc == QETH_VNICC_RX_BCAST)
- card->options.vnicc.rx_bcast_enabled = true;
+ else {
+ /* successful online VNICC change; handle special cases */
+ if (state && vnicc == QETH_VNICC_RX_BCAST)
+ card->options.vnicc.rx_bcast_enabled = true;
+ if (!state && vnicc == QETH_VNICC_LEARNING)
+ qeth_l2_vnicc_recover_timeout(card, vnicc,
+ &card->options.vnicc.learning_timeout);
+ }
return rc;
}
@@ -2287,6 +2327,70 @@ int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state)
return rc;
}
+/* set VNICC timeout; called from sysfs store function. Currently, only learning
+ * supports timeout
+ */
+int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout)
+{
+ int rc = 0;
+
+ QETH_CARD_TEXT(card, 2, "vniccsto");
+
+ /* do not change anything if BridgePort is enabled */
+ if (qeth_bridgeport_is_in_use(card))
+ return -EBUSY;
+
+ /* check if characteristic and set_timeout are supported */
+ if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) ||
+ !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING))
+ return -EOPNOTSUPP;
+
+ /* do we need to do anything? */
+ if (card->options.vnicc.learning_timeout == timeout)
+ return rc;
+
+ /* if card is not ready, simply store the value internally and return */
+ if (!qeth_card_hw_is_reachable(card)) {
+ card->options.vnicc.learning_timeout = timeout;
+ return rc;
+ }
+
+ /* send timeout value to card; if successful, store value internally */
+ rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING,
+ IPA_VNICC_SET_TIMEOUT, &timeout);
+ if (!rc)
+ card->options.vnicc.learning_timeout = timeout;
+
+ return rc;
+}
+
+/* get current VNICC timeout; called from sysfs show function. Currently, only
+ * learning supports timeout
+ */
+int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout)
+{
+ int rc = 0;
+
+ QETH_CARD_TEXT(card, 2, "vniccgto");
+
+ /* do not get anything if BridgePort is enabled */
+ if (qeth_bridgeport_is_in_use(card))
+ return -EBUSY;
+
+ /* check if characteristic and get_timeout are supported */
+ if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) ||
+ !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING))
+ return -EOPNOTSUPP;
+ /* if card is ready, get timeout. Otherwise, just return stored value */
+ *timeout = card->options.vnicc.learning_timeout;
+ if (qeth_card_hw_is_reachable(card))
+ rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING,
+ IPA_VNICC_GET_TIMEOUT,
+ timeout);
+
+ return rc;
+}
+
/* check if VNICC is currently enabled */
bool qeth_l2_vnicc_is_in_use(struct qeth_card *card)
{
@@ -2304,6 +2408,19 @@ bool qeth_l2_vnicc_is_in_use(struct qeth_card *card)
return true;
}
+/* recover user timeout setting */
+static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc,
+ u32 *timeout)
+{
+ if (card->options.vnicc.sup_chars & vnicc &&
+ card->options.vnicc.getset_timeout_sup & vnicc &&
+ !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT,
+ timeout))
+ return false;
+ *timeout = QETH_VNICC_DEFAULT_TIMEOUT;
+ return true;
+}
+
/* recover user characteristic setting */
static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc,
bool enable)
@@ -2322,6 +2439,7 @@ static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc,
/* (re-)initialize VNICC */
static void qeth_l2_vnicc_init(struct qeth_card *card)
{
+ u32 *timeout = &card->options.vnicc.learning_timeout;
unsigned int chars_len, i;
unsigned long chars_tmp;
u32 sup_cmds, vnicc;
@@ -2332,7 +2450,8 @@ static void qeth_l2_vnicc_init(struct qeth_card *card)
card->options.vnicc.rx_bcast_enabled = 0;
/* initial query and storage of VNIC characteristics */
if (qeth_l2_vnicc_query_chars(card)) {
- if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT)
+ if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT ||
+ *timeout != QETH_VNICC_DEFAULT_TIMEOUT)
dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n");
/* fail quietly if user didn't change the default config */
card->options.vnicc.sup_chars = 0;
@@ -2346,12 +2465,16 @@ static void qeth_l2_vnicc_init(struct qeth_card *card)
for_each_set_bit(i, &chars_tmp, chars_len) {
vnicc = BIT(i);
qeth_l2_vnicc_query_cmds(card, vnicc, &sup_cmds);
+ if (!(sup_cmds & IPA_VNICC_SET_TIMEOUT) ||
+ !(sup_cmds & IPA_VNICC_GET_TIMEOUT))
+ card->options.vnicc.getset_timeout_sup &= ~vnicc;
if (!(sup_cmds & IPA_VNICC_ENABLE) ||
!(sup_cmds & IPA_VNICC_DISABLE))
card->options.vnicc.set_char_sup &= ~vnicc;
}
/* enforce assumed default values and recover settings, if changed */
- error = false;
+ error = qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING,
+ timeout);
chars_tmp = card->options.vnicc.wanted_chars ^ QETH_VNICC_DEFAULT;
chars_tmp |= QETH_VNICC_BRIDGE_INVISIBLE;
chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE;
@@ -2370,8 +2493,10 @@ static void qeth_l2_vnicc_set_defaults(struct qeth_card *card)
/* characteristics values */
card->options.vnicc.sup_chars = QETH_VNICC_ALL;
card->options.vnicc.cur_chars = QETH_VNICC_DEFAULT;
+ card->options.vnicc.learning_timeout = QETH_VNICC_DEFAULT_TIMEOUT;
/* supported commands */
card->options.vnicc.set_char_sup = QETH_VNICC_ALL;
+ card->options.vnicc.getset_timeout_sup = QETH_VNICC_LEARNING;
/* settings wanted by users */
card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT;
}
diff --git a/drivers/s390/net/qeth_l2_sys.c b/drivers/s390/net/qeth_l2_sys.c
index 01936f7dbe7e..4608daedb204 100644
--- a/drivers/s390/net/qeth_l2_sys.c
+++ b/drivers/s390/net/qeth_l2_sys.c
@@ -309,6 +309,47 @@ static u32 qeth_l2_vnicc_sysfs_attr_to_char(const char *attr_name)
return 0;
}
+/* get current timeout setting */
+static ssize_t qeth_vnicc_timeout_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct qeth_card *card = dev_get_drvdata(dev);
+ u32 timeout;
+ int rc;
+
+ if (!card)
+ return -EINVAL;
+
+ rc = qeth_l2_vnicc_get_timeout(card, &timeout);
+ if (rc == -EBUSY)
+ return sprintf(buf, "n/a (BridgePort)\n");
+ if (rc == -EOPNOTSUPP)
+ return sprintf(buf, "n/a\n");
+ return rc ? rc : sprintf(buf, "%d\n", timeout);
+}
+
+/* change timeout setting */
+static ssize_t qeth_vnicc_timeout_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct qeth_card *card = dev_get_drvdata(dev);
+ u32 timeout;
+ int rc;
+
+ if (!card)
+ return -EINVAL;
+
+ rc = kstrtou32(buf, 10, &timeout);
+ if (rc)
+ return rc;
+
+ mutex_lock(&card->conf_mutex);
+ rc = qeth_l2_vnicc_set_timeout(card, timeout);
+ mutex_unlock(&card->conf_mutex);
+ return rc ? rc : count;
+}
+
/* get current setting of characteristic */
static ssize_t qeth_vnicc_char_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -359,6 +400,8 @@ static DEVICE_ATTR(flooding, 0644, qeth_vnicc_char_show, qeth_vnicc_char_store);
static DEVICE_ATTR(mcast_flooding, 0644, qeth_vnicc_char_show,
qeth_vnicc_char_store);
static DEVICE_ATTR(learning, 0644, qeth_vnicc_char_show, qeth_vnicc_char_store);
+static DEVICE_ATTR(learning_timeout, 0644, qeth_vnicc_timeout_show,
+ qeth_vnicc_timeout_store);
static DEVICE_ATTR(takeover_setvmac, 0644, qeth_vnicc_char_show,
qeth_vnicc_char_store);
static DEVICE_ATTR(takeover_learning, 0644, qeth_vnicc_char_show,
@@ -371,6 +414,7 @@ static struct attribute *qeth_l2_vnicc_attrs[] = {
&dev_attr_flooding.attr,
&dev_attr_mcast_flooding.attr,
&dev_attr_learning.attr,
+ &dev_attr_learning_timeout.attr,
&dev_attr_takeover_setvmac.attr,
&dev_attr_takeover_learning.attr,
&dev_attr_bridge_invisible.attr,
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-06-16 13:12:29 +0200