diff options
| -rw-r--r-- | drivers/s390/net/qeth_core.h | 6 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_core_mpc.h | 31 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_l2.h | 4 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_l2_main.c | 207 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_l2_sys.c | 158 |
5 files changed, 392 insertions, 14 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index b96438df8fd4..2236c0c9744a 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -186,6 +186,12 @@ struct qeth_vnicc_info { /* supported/currently configured VNICCs; updated in IPA exchanges */ u32 sup_chars; u32 cur_chars; + /* supported commands: bitmasks which VNICCs support respective cmd */ + u32 set_char_sup; + /* characteristics wanted/configured by user */ + u32 wanted_chars; + /* has user explicitly enabled rx_bcast while online? */ + bool rx_bcast_enabled; }; static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa, diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h index c13816b8c92f..7f67a81a2ae6 100644 --- a/drivers/s390/net/qeth_core_mpc.h +++ b/drivers/s390/net/qeth_core_mpc.h @@ -559,6 +559,22 @@ struct qeth_ipacmd_diagass { /* VNIC Characteristics IPA Command: *****************************************/ /* IPA commands/sub commands for VNICC */ #define IPA_VNICC_QUERY_CHARS 0x00000000L +#define IPA_VNICC_QUERY_CMDS 0x00000001L +#define IPA_VNICC_ENABLE 0x00000002L +#define IPA_VNICC_DISABLE 0x00000004L + +/* VNICC flags */ +#define QETH_VNICC_FLOODING 0x80000000 +#define QETH_VNICC_MCAST_FLOODING 0x40000000 +#define QETH_VNICC_LEARNING 0x20000000 +#define QETH_VNICC_TAKEOVER_SETVMAC 0x10000000 +#define QETH_VNICC_TAKEOVER_LEARNING 0x08000000 +#define QETH_VNICC_BRIDGE_INVISIBLE 0x04000000 +#define QETH_VNICC_RX_BCAST 0x02000000 + +/* VNICC default values */ +#define QETH_VNICC_ALL 0xff000000 +#define QETH_VNICC_DEFAULT QETH_VNICC_RX_BCAST /* VNICC header */ struct qeth_ipacmd_vnicc_hdr { @@ -573,10 +589,25 @@ struct qeth_vnicc_sub_hdr { u32 sub_command; }; +/* query supported commands for VNIC characteristic */ +struct qeth_vnicc_query_cmds { + u32 vnic_char; + u32 sup_cmds; +}; + +/* enable/disable VNIC characteristic */ +struct qeth_vnicc_set_char { + u32 vnic_char; +}; + /* complete VNICC IPA command message */ struct qeth_ipacmd_vnicc { struct qeth_ipacmd_vnicc_hdr hdr; struct qeth_vnicc_sub_hdr sub_hdr; + union { + struct qeth_vnicc_query_cmds query_cmds; + struct qeth_vnicc_set_char set_char; + }; }; /* SETBRIDGEPORT IPA Command: *********************************************/ diff --git a/drivers/s390/net/qeth_l2.h b/drivers/s390/net/qeth_l2.h index 0d59f9a45ea9..0619018c76f9 100644 --- a/drivers/s390/net/qeth_l2.h +++ b/drivers/s390/net/qeth_l2.h @@ -14,6 +14,10 @@ int qeth_l2_create_device_attributes(struct device *); void qeth_l2_remove_device_attributes(struct device *); 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); +bool qeth_l2_vnicc_is_in_use(struct qeth_card *card); + struct qeth_mac { u8 mac_addr[OSA_ADDR_LEN]; u8 is_uc:1; diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 2fa273b40dd1..36a7fd7255e3 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -33,6 +33,7 @@ static void qeth_bridge_state_change(struct qeth_card *card, struct qeth_ipa_cmd *cmd); 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 int qeth_l2_verify_dev(struct net_device *dev) @@ -920,6 +921,7 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev) hash_init(card->mac_htable); card->options.layer2 = 1; card->info.hwtrap = 0; + qeth_l2_vnicc_set_defaults(card); return 0; } @@ -2049,6 +2051,12 @@ int qeth_bridgeport_an_set(struct qeth_card *card, int enable) } EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set); +static bool qeth_bridgeport_is_in_use(struct qeth_card *card) +{ + return (card->options.sbp.role || card->options.sbp.reflect_promisc || + card->options.sbp.hostnotification); +} + /* VNIC Characteristics support */ /* handle VNICC IPA command return codes; convert to error codes */ @@ -2086,6 +2094,12 @@ static int qeth_l2_vnicc_makerc(struct qeth_card *card, int ipa_rc) /* generic VNICC request call back control */ struct _qeth_l2_vnicc_request_cbctl { u32 sub_cmd; + struct { + u32 vnic_char; + } param; + struct { + u32 *sup_cmds; + } result; }; /* generic VNICC request call back */ @@ -2093,6 +2107,8 @@ static int qeth_l2_vnicc_request_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { + struct _qeth_l2_vnicc_request_cbctl *cbctl = + (struct _qeth_l2_vnicc_request_cbctl *) reply->param; struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; struct qeth_ipacmd_vnicc *rep = &cmd->data.vnicc; @@ -2103,6 +2119,9 @@ static int qeth_l2_vnicc_request_cb(struct qeth_card *card, card->options.vnicc.sup_chars = rep->hdr.sup; card->options.vnicc.cur_chars = rep->hdr.cur; + if (cbctl->sub_cmd == IPA_VNICC_QUERY_CMDS) + *cbctl->result.sup_cmds = rep->query_cmds.sup_cmds; + return 0; } @@ -2134,6 +2153,15 @@ static int qeth_l2_vnicc_request(struct qeth_card *card, switch (cbctl->sub_cmd) { case IPA_VNICC_QUERY_CHARS: break; + case IPA_VNICC_QUERY_CMDS: + req->sub_hdr.data_length += sizeof(req->query_cmds); + req->query_cmds.vnic_char = cbctl->param.vnic_char; + break; + case IPA_VNICC_ENABLE: + case IPA_VNICC_DISABLE: + req->sub_hdr.data_length += sizeof(req->set_char); + req->set_char.vnic_char = cbctl->param.vnic_char; + break; default: qeth_release_buffer(iob->channel, iob); return -EOPNOTSUPP; @@ -2158,15 +2186,194 @@ static int qeth_l2_vnicc_query_chars(struct qeth_card *card) return qeth_l2_vnicc_request(card, &cbctl); } +/* VNICC query sub commands request */ +static int qeth_l2_vnicc_query_cmds(struct qeth_card *card, u32 vnic_char, + u32 *sup_cmds) +{ + struct _qeth_l2_vnicc_request_cbctl cbctl; + + /* prepare callback control */ + cbctl.sub_cmd = IPA_VNICC_QUERY_CMDS; + cbctl.param.vnic_char = vnic_char; + cbctl.result.sup_cmds = sup_cmds; + + QETH_CARD_TEXT(card, 2, "vniccqcm"); + return qeth_l2_vnicc_request(card, &cbctl); +} + +/* VNICC enable/disable characteristic request */ +static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char, + u32 cmd) +{ + struct _qeth_l2_vnicc_request_cbctl cbctl; + + /* prepare callback control */ + cbctl.sub_cmd = cmd; + cbctl.param.vnic_char = vnic_char; + + QETH_CARD_TEXT(card, 2, "vniccedc"); + 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) +{ + int rc = 0; + u32 cmd; + + QETH_CARD_TEXT(card, 2, "vniccsch"); + + /* do not change anything if BridgePort is enabled */ + if (qeth_bridgeport_is_in_use(card)) + return -EBUSY; + + /* check if characteristic and enable/disable are supported */ + if (!(card->options.vnicc.sup_chars & vnicc) || + !(card->options.vnicc.set_char_sup & vnicc)) + return -EOPNOTSUPP; + + /* set enable/disable command and store wanted characteristic */ + if (state) { + cmd = IPA_VNICC_ENABLE; + card->options.vnicc.wanted_chars |= vnicc; + } else { + cmd = IPA_VNICC_DISABLE; + card->options.vnicc.wanted_chars &= ~vnicc; + } + + /* do we need to do anything? */ + if (card->options.vnicc.cur_chars == card->options.vnicc.wanted_chars) + return rc; + + /* if card is not ready, simply stop here */ + if (!qeth_card_hw_is_reachable(card)) { + if (state) + card->options.vnicc.cur_chars |= vnicc; + else + card->options.vnicc.cur_chars &= ~vnicc; + return rc; + } + + rc = qeth_l2_vnicc_set_char(card, vnicc, cmd); + 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; + + return rc; +} + +/* get current VNICC flag state; called from sysfs show function */ +int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state) +{ + int rc = 0; + + QETH_CARD_TEXT(card, 2, "vniccgch"); + + /* do not get anything if BridgePort is enabled */ + if (qeth_bridgeport_is_in_use(card)) + return -EBUSY; + + /* check if characteristic is supported */ + if (!(card->options.vnicc.sup_chars & vnicc)) + return -EOPNOTSUPP; + + /* if card is ready, query current VNICC state */ + if (qeth_card_hw_is_reachable(card)) + rc = qeth_l2_vnicc_query_chars(card); + + *state = (card->options.vnicc.cur_chars & vnicc) ? true : false; + return rc; +} + +/* check if VNICC is currently enabled */ +bool qeth_l2_vnicc_is_in_use(struct qeth_card *card) +{ + /* if everything is turned off, VNICC is not active */ + if (!card->options.vnicc.cur_chars) + return false; + /* default values are only OK if rx_bcast was not enabled by user + * or the card is offline. + */ + if (card->options.vnicc.cur_chars == QETH_VNICC_DEFAULT) { + if (!card->options.vnicc.rx_bcast_enabled || + !qeth_card_hw_is_reachable(card)) + return false; + } + return true; +} + +/* recover user characteristic setting */ +static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc, + bool enable) +{ + u32 cmd = enable ? IPA_VNICC_ENABLE : IPA_VNICC_DISABLE; + + if (card->options.vnicc.sup_chars & vnicc && + card->options.vnicc.set_char_sup & vnicc && + !qeth_l2_vnicc_set_char(card, vnicc, cmd)) + return false; + card->options.vnicc.wanted_chars &= ~vnicc; + card->options.vnicc.wanted_chars |= QETH_VNICC_DEFAULT & vnicc; + return true; +} + /* (re-)initialize VNICC */ static void qeth_l2_vnicc_init(struct qeth_card *card) { + unsigned int chars_len, i; + unsigned long chars_tmp; + u32 sup_cmds, vnicc; + bool enable, error; + QETH_CARD_TEXT(card, 2, "vniccini"); + /* reset rx_bcast */ + 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) + 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; card->options.vnicc.cur_chars = 0; + card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; + return; } + /* get supported commands for each supported characteristic */ + chars_tmp = card->options.vnicc.sup_chars; + chars_len = sizeof(card->options.vnicc.sup_chars) * BITS_PER_BYTE; + 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_ENABLE) || + !(sup_cmds & IPA_VNICC_DISABLE)) + card->options.vnicc.set_char_sup &= ~vnicc; + } + /* enforce assumed default values and recover settings, if changed */ + error = false; + 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; + for_each_set_bit(i, &chars_tmp, chars_len) { + vnicc = BIT(i); + enable = card->options.vnicc.wanted_chars & vnicc; + error |= qeth_l2_vnicc_recover_char(card, vnicc, enable); + } + if (error) + dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); +} + +/* configure default values of VNIC characteristics */ +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; + /* supported commands */ + card->options.vnicc.set_char_sup = QETH_VNICC_ALL; + /* settings wanted by users */ + card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; } module_init(qeth_l2_init); diff --git a/drivers/s390/net/qeth_l2_sys.c b/drivers/s390/net/qeth_l2_sys.c index 9696baa49e2d..01936f7dbe7e 100644 --- a/drivers/s390/net/qeth_l2_sys.c +++ b/drivers/s390/net/qeth_l2_sys.c @@ -20,6 +20,9 @@ static ssize_t qeth_bridge_port_role_state_show(struct device *dev, if (!card) return -EINVAL; + if (qeth_l2_vnicc_is_in_use(card)) + return sprintf(buf, "n/a (VNIC characteristics)\n"); + if (qeth_card_hw_is_reachable(card) && card->options.sbp.supported_funcs) rc = qeth_bridgeport_query_ports(card, @@ -60,6 +63,11 @@ static ssize_t qeth_bridge_port_role_state_show(struct device *dev, static ssize_t qeth_bridge_port_role_show(struct device *dev, struct device_attribute *attr, char *buf) { + struct qeth_card *card = dev_get_drvdata(dev); + + if (qeth_l2_vnicc_is_in_use(card)) + return sprintf(buf, "n/a (VNIC characteristics)\n"); + return qeth_bridge_port_role_state_show(dev, attr, buf, 0); } @@ -83,7 +91,10 @@ static ssize_t qeth_bridge_port_role_store(struct device *dev, mutex_lock(&card->conf_mutex); - if (card->options.sbp.reflect_promisc) /* Forbid direct manipulation */ + if (qeth_l2_vnicc_is_in_use(card)) + rc = -EBUSY; + else if (card->options.sbp.reflect_promisc) + /* Forbid direct manipulation */ rc = -EPERM; else if (qeth_card_hw_is_reachable(card)) { rc = qeth_bridgeport_setrole(card, role); @@ -103,6 +114,11 @@ static DEVICE_ATTR(bridge_role, 0644, qeth_bridge_port_role_show, static ssize_t qeth_bridge_port_state_show(struct device *dev, struct device_attribute *attr, char *buf) { + struct qeth_card *card = dev_get_drvdata(dev); + + if (qeth_l2_vnicc_is_in_use(card)) + return sprintf(buf, "n/a (VNIC characteristics)\n"); + return qeth_bridge_port_role_state_show(dev, attr, buf, 1); } @@ -118,6 +134,9 @@ static ssize_t qeth_bridgeport_hostnotification_show(struct device *dev, if (!card) return -EINVAL; + if (qeth_l2_vnicc_is_in_use(card)) + return sprintf(buf, "n/a (VNIC characteristics)\n"); + enabled = card->options.sbp.hostnotification; return sprintf(buf, "%d\n", enabled); @@ -142,7 +161,9 @@ static ssize_t qeth_bridgeport_hostnotification_store(struct device *dev, mutex_lock(&card->conf_mutex); - if (qeth_card_hw_is_reachable(card)) { + if (qeth_l2_vnicc_is_in_use(card)) + rc = -EBUSY; + else if (qeth_card_hw_is_reachable(card)) { rc = qeth_bridgeport_an_set(card, enable); if (!rc) card->options.sbp.hostnotification = enable; @@ -167,6 +188,9 @@ static ssize_t qeth_bridgeport_reflect_show(struct device *dev, if (!card) return -EINVAL; + if (qeth_l2_vnicc_is_in_use(card)) + return sprintf(buf, "n/a (VNIC characteristics)\n"); + if (card->options.sbp.reflect_promisc) { if (card->options.sbp.reflect_promisc_primary) state = "primary"; @@ -202,7 +226,9 @@ static ssize_t qeth_bridgeport_reflect_store(struct device *dev, mutex_lock(&card->conf_mutex); - if (card->options.sbp.role != QETH_SBP_ROLE_NONE) + if (qeth_l2_vnicc_is_in_use(card)) + rc = -EBUSY; + else if (card->options.sbp.role != QETH_SBP_ROLE_NONE) rc = -EPERM; else { card->options.sbp.reflect_promisc = enable; @@ -231,16 +257,6 @@ static struct attribute_group qeth_l2_bridgeport_attr_group = { .attrs = qeth_l2_bridgeport_attrs, }; -int qeth_l2_create_device_attributes(struct device *dev) -{ - return sysfs_create_group(&dev->kobj, &qeth_l2_bridgeport_attr_group); -} - -void qeth_l2_remove_device_attributes(struct device *dev) -{ - sysfs_remove_group(&dev->kobj, &qeth_l2_bridgeport_attr_group); -} - /** * qeth_l2_setup_bridgeport_attrs() - set/restore attrs when turning online. * @card: qeth_card structure pointer @@ -270,10 +286,124 @@ void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card) qeth_bridgeport_an_set(card, 0); } +/* VNIC CHARS support */ + +/* convert sysfs attr name to VNIC characteristic */ +static u32 qeth_l2_vnicc_sysfs_attr_to_char(const char *attr_name) +{ + if (sysfs_streq(attr_name, "flooding")) + return QETH_VNICC_FLOODING; + else if (sysfs_streq(attr_name, "mcast_flooding")) + return QETH_VNICC_MCAST_FLOODING; + else if (sysfs_streq(attr_name, "learning")) + return QETH_VNICC_LEARNING; + else if (sysfs_streq(attr_name, "takeover_setvmac")) + return QETH_VNICC_TAKEOVER_SETVMAC; + else if (sysfs_streq(attr_name, "takeover_learning")) + return QETH_VNICC_TAKEOVER_LEARNING; + else if (sysfs_streq(attr_name, "bridge_invisible")) + return QETH_VNICC_BRIDGE_INVISIBLE; + else if (sysfs_streq(attr_name, "rx_bcast")) + return QETH_VNICC_RX_BCAST; + + return 0; +} + +/* get current setting of characteristic */ +static ssize_t qeth_vnicc_char_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct qeth_card *card = dev_get_drvdata(dev); + bool state; + u32 vnicc; + int rc; + + if (!card) + return -EINVAL; + + vnicc = qeth_l2_vnicc_sysfs_attr_to_char(attr->attr.name); + rc = qeth_l2_vnicc_get_state(card, vnicc, &state); + + 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", state); +} + +/* change setting of characteristic */ +static ssize_t qeth_vnicc_char_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct qeth_card *card = dev_get_drvdata(dev); + bool state; + u32 vnicc; + int rc; + + if (!card) + return -EINVAL; + + if (kstrtobool(buf, &state)) + return -EINVAL; + + vnicc = qeth_l2_vnicc_sysfs_attr_to_char(attr->attr.name); + mutex_lock(&card->conf_mutex); + rc = qeth_l2_vnicc_set_state(card, vnicc, state); + mutex_unlock(&card->conf_mutex); + + return rc ? rc : count; +} + +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(takeover_setvmac, 0644, qeth_vnicc_char_show, + qeth_vnicc_char_store); +static DEVICE_ATTR(takeover_learning, 0644, qeth_vnicc_char_show, + qeth_vnicc_char_store); +static DEVICE_ATTR(bridge_invisible, 0644, qeth_vnicc_char_show, + qeth_vnicc_char_store); +static DEVICE_ATTR(rx_bcast, 0644, qeth_vnicc_char_show, qeth_vnicc_char_store); + +static struct attribute *qeth_l2_vnicc_attrs[] = { + &dev_attr_flooding.attr, + &dev_attr_mcast_flooding.attr, + &dev_attr_learning.attr, + &dev_attr_takeover_setvmac.attr, + &dev_attr_takeover_learning.attr, + &dev_attr_bridge_invisible.attr, + &dev_attr_rx_bcast.attr, + NULL, +}; + +static struct attribute_group qeth_l2_vnicc_attr_group = { + .attrs = qeth_l2_vnicc_attrs, + .name = "vnicc", +}; + +static const struct attribute_group *qeth_l2_only_attr_groups[] = { + &qeth_l2_bridgeport_attr_group, + &qeth_l2_vnicc_attr_group, + NULL, +}; + +int qeth_l2_create_device_attributes(struct device *dev) +{ + return sysfs_create_groups(&dev->kobj, qeth_l2_only_attr_groups); +} + +void qeth_l2_remove_device_attributes(struct device *dev) +{ + sysfs_remove_groups(&dev->kobj, qeth_l2_only_attr_groups); +} + const struct attribute_group *qeth_l2_attr_groups[] = { &qeth_device_attr_group, &qeth_device_blkt_group, - /* l2 specific, see l2_{create,remove}_device_attributes(): */ + /* l2 specific, see qeth_l2_only_attr_groups: */ &qeth_l2_bridgeport_attr_group, + &qeth_l2_vnicc_attr_group, NULL, }; |