/* * Copyright IBM Corp. 2007 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, * Frank Pavlic <fpavlic@de.ibm.com>, * Thomas Spatzier <tspat@de.ibm.com>, * Frank Blaschka <frank.blaschka@de.ibm.com> */ #define KMSG_COMPONENT "qeth" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/list.h> #include <linux/rwsem.h> #include <asm/ebcdic.h> #include "qeth_core.h" static ssize_t qeth_dev_state_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; switch (card->state) { case CARD_STATE_DOWN: return sprintf(buf, "DOWN\n"); case CARD_STATE_HARDSETUP: return sprintf(buf, "HARDSETUP\n"); case CARD_STATE_SOFTSETUP: return sprintf(buf, "SOFTSETUP\n"); case CARD_STATE_UP: if (card->lan_online) return sprintf(buf, "UP (LAN ONLINE)\n"); else return sprintf(buf, "UP (LAN OFFLINE)\n"); case CARD_STATE_RECOVER: return sprintf(buf, "RECOVER\n"); default: return sprintf(buf, "UNKNOWN\n"); } } static DEVICE_ATTR(state, 0444, qeth_dev_state_show, NULL); static ssize_t qeth_dev_chpid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; return sprintf(buf, "%02X\n", card->info.chpid); } static DEVICE_ATTR(chpid, 0444, qeth_dev_chpid_show, NULL); static ssize_t qeth_dev_if_name_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; return sprintf(buf, "%s\n", QETH_CARD_IFNAME(card)); } static DEVICE_ATTR(if_name, 0444, qeth_dev_if_name_show, NULL); static ssize_t qeth_dev_card_type_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; return sprintf(buf, "%s\n", qeth_get_cardname_short(card)); } static DEVICE_ATTR(card_type, 0444, qeth_dev_card_type_show, NULL); static inline const char *qeth_get_bufsize_str(struct qeth_card *card) { if (card->qdio.in_buf_size == 16384) return "16k"; else if (card->qdio.in_buf_size == 24576) return "24k"; else if (card->qdio.in_buf_size == 32768) return "32k"; else if (card->qdio.in_buf_size == 40960) return "40k"; else return "64k"; } static ssize_t qeth_dev_inbuf_size_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; return sprintf(buf, "%s\n", qeth_get_bufsize_str(card)); } static DEVICE_ATTR(inbuf_size, 0444, qeth_dev_inbuf_size_show, NULL); static ssize_t qeth_dev_portno_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; return sprintf(buf, "%i\n", card->info.portno); } static ssize_t qeth_dev_portno_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; unsigned int portno, limit; int rc = 0; if (!card) return -EINVAL; mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) { rc = -EPERM; goto out; } portno = simple_strtoul(buf, &tmp, 16); if (portno > QETH_MAX_PORTNO) { rc = -EINVAL; goto out; } limit = (card->ssqd.pcnt ? card->ssqd.pcnt - 1 : card->ssqd.pcnt); if (portno > limit) { rc = -EINVAL; goto out; } card->info.portno = portno; out: mutex_unlock(&card->conf_mutex); return rc ? rc : count; } static DEVICE_ATTR(portno, 0644, qeth_dev_portno_show, qeth_dev_portno_store); static ssize_t qeth_dev_portname_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); char portname[9] = {0, }; if (!card) return -EINVAL; if (card->info.portname_required) { memcpy(portname, card->info.portname + 1, 8); EBCASC(portname, 8); return sprintf(buf, "%s\n", portname); } else return sprintf(buf, "no portname required\n"); } static ssize_t qeth_dev_portname_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; int i, rc = 0; if (!card) return -EINVAL; mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) { rc = -EPERM; goto out; } tmp = strsep((char **) &buf, "\n"); if ((strlen(tmp) > 8) || (strlen(tmp) == 0)) { rc = -EINVAL; goto out; } card->info.portname[0] = strlen(tmp); /* for beauty reasons */ for (i = 1; i < 9; i++) card->info.portname[i] = ' '; strcpy(card->info.portname + 1, tmp); ASCEBC(card->info.portname + 1, 8); out: mutex_unlock(&card->conf_mutex); return rc ? rc : count; } static DEVICE_ATTR(portname, 0644, qeth_dev_portname_show, qeth_dev_portname_store); static ssize_t qeth_dev_prioqing_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; switch (card->qdio.do_prio_queueing) { case QETH_PRIO_Q_ING_PREC: return sprintf(buf, "%s\n", "by precedence"); case QETH_PRIO_Q_ING_TOS: return sprintf(buf, "%s\n", "by type of service"); case QETH_PRIO_Q_ING_SKB: return sprintf(buf, "%s\n", "by skb-priority"); case QETH_PRIO_Q_ING_VLAN: return sprintf(buf, "%s\n", "by VLAN headers"); default: return sprintf(buf, "always queue %i\n", card->qdio.default_out_queue); } } static ssize_t qeth_dev_prioqing_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; int rc = 0; if (!card) return -EINVAL; mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) { rc = -EPERM; goto out; } /* check if 1920 devices are supported , * if though we have to permit priority queueing */ if (card->qdio.no_out_queues == 1) { card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; rc = -EPERM; goto out; } tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "prio_queueing_prec")) { card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_PREC; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; } else if (!strcmp(tmp, "prio_queueing_skb")) { card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_SKB; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; } else if (!strcmp(tmp, "prio_queueing_tos")) { card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; } else if (!strcmp(tmp, "prio_queueing_vlan")) { if (!card->options.layer2) { rc = -ENOTSUPP; goto out; } card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_VLAN; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; } else if (!strcmp(tmp, "no_prio_queueing:0")) { card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING; card->qdio.default_out_queue = 0; } else if (!strcmp(tmp, "no_prio_queueing:1")) { card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING; card->qdio.default_out_queue = 1; } else if (!strcmp(tmp, "no_prio_queueing:2")) { card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING; card->qdio.default_out_queue = 2; } else if (!strcmp(tmp, "no_prio_queueing:3")) { card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING; card->qdio.default_out_queue = 3; } else if (!strcmp(tmp, "no_prio_queueing")) { card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; } else rc = -EINVAL; out: mutex_unlock(&card->conf_mutex); return rc ? rc : count; } static DEVICE_ATTR(priority_queueing, 0644, qeth_dev_prioqing_show, qeth_dev_prioqing_store); static ssize_t qeth_dev_bufcnt_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; return sprintf(buf, "%i\n", card->qdio.in_buf_pool.buf_count); } static ssize_t qeth_dev_bufcnt_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; int cnt, old_cnt; int rc = 0; if (!card) return -EINVAL; mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) { rc = -EPERM; goto out; } old_cnt = card->qdio.in_buf_pool.buf_count; cnt = simple_strtoul(buf, &tmp, 10); cnt = (cnt < QETH_IN_BUF_COUNT_MIN) ? QETH_IN_BUF_COUNT_MIN : ((cnt > QETH_IN_BUF_COUNT_MAX) ? QETH_IN_BUF_COUNT_MAX : cnt); if (old_cnt != cnt) { rc = qeth_realloc_buffer_pool(card, cnt); } out: mutex_unlock(&card->conf_mutex); return rc ? rc : count; } static DEVICE_ATTR(buffer_count, 0644, qeth_dev_bufcnt_show, qeth_dev_bufcnt_store); static ssize_t qeth_dev_recover_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; int i; if (!card) return -EINVAL; if (card->state != CARD_STATE_UP) return -EPERM; i = simple_strtoul(buf, &tmp, 16); if (i == 1) qeth_schedule_recovery(card); return count; } static DEVICE_ATTR(recover, 0200, NULL, qeth_dev_recover_store); static ssize_t qeth_dev_performance_stats_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; return sprintf(buf, "%i\n", card->options.performance_stats ? 1:0); } static ssize_t qeth_dev_performance_stats_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; int i, rc = 0; if (!card) return -EINVAL; mutex_lock(&card->conf_mutex); i = simple_strtoul(buf, &tmp, 16); if ((i == 0) || (i == 1)) { if (i == card->options.performance_stats) goto out; card->options.performance_stats = i; if (i == 0) memset(&card->perf_stats, 0, sizeof(struct qeth_perf_stats)); card->perf_stats.initial_rx_packets = card->stats.rx_packets; card->perf_stats.initial_tx_packets = card->stats.tx_packets; } else rc = -EINVAL; out: mutex_unlock(&card->conf_mutex); return rc ? rc : count; } static DEVICE_ATTR(performance_stats, 0644, qeth_dev_performance_stats_show, qeth_dev_performance_stats_store); static ssize_t qeth_dev_layer2_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; return sprintf(buf, "%i\n", card->options.layer2); } static ssize_t qeth_dev_layer2_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; int i, rc = 0; enum qeth_discipline_id newdis; if (!card) return -EINVAL; mutex_lock(&card->discipline_mutex); if (card->state != CARD_STATE_DOWN) { rc = -EPERM; goto out; } i = simple_strtoul(buf, &tmp, 16); switch (i) { case 0: newdis = QETH_DISCIPLINE_LAYER3; break; case 1: newdis = QETH_DISCIPLINE_LAYER2; break; default: rc = -EINVAL; goto out; } if (card->options.layer2 == newdis) goto out; else { card->info.mac_bits = 0; if (card->discipline) { card->discipline->remove(card->gdev); qeth_core_free_discipline(card); } } rc = qeth_core_load_discipline(card, newdis); if (rc) goto out; rc = card->discipline->setup(card->gdev); out: mutex_unlock(&card->discipline_mutex); return rc ? rc : count; } static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show, qeth_dev_layer2_store); #define ATTR_QETH_ISOLATION_NONE ("none") #define ATTR_QETH_ISOLATION_FWD ("forward") #define ATTR_QETH_ISOLATION_DROP ("drop") static ssize_t qeth_dev_isolation_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; switch (card->options.isolation) { case ISOLATION_MODE_NONE: return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_NONE); case ISOLATION_MODE_FWD: return snprintf(buf, 9, "%s\n", ATTR_QETH_ISOLATION_FWD); case ISOLATION_MODE_DROP: return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_DROP); default: return snprintf(buf, 5, "%s\n", "N/A"); } } static ssize_t qeth_dev_isolation_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); enum qeth_ipa_isolation_modes isolation; int rc = 0; char *tmp, *curtoken; curtoken = (char *) buf; if (!card) return -EINVAL; mutex_lock(&card->conf_mutex); /* check for unknown, too, in case we do not yet know who we are */ if (card->info.type != QETH_CARD_TYPE_OSD && card->info.type != QETH_CARD_TYPE_OSX && card->info.type != QETH_CARD_TYPE_UNKNOWN) { rc = -EOPNOTSUPP; dev_err(&card->gdev->dev, "Adapter does not " "support QDIO data connection isolation\n"); goto out; } /* parse input into isolation mode */ tmp = strsep(&curtoken, "\n"); if (!strcmp(tmp, ATTR_QETH_ISOLATION_NONE)) { isolation = ISOLATION_MODE_NONE; } else if (!strcmp(tmp, ATTR_QETH_ISOLATION_FWD)) { isolation = ISOLATION_MODE_FWD; } else if (!strcmp(tmp, ATTR_QETH_ISOLATION_DROP)) { isolation = ISOLATION_MODE_DROP; } else { rc = -EINVAL; goto out; } rc = count; /* defer IP assist if device is offline (until discipline->set_online)*/ card->options.prev_isolation = card->options.isolation; card->options.isolation = isolation; if (card->state == CARD_STATE_SOFTSETUP || card->state == CARD_STATE_UP) { int ipa_rc = qeth_set_access_ctrl_online(card, 1); if (ipa_rc != 0) rc = ipa_rc; } out: mutex_unlock(&card->conf_mutex); return rc; } static DEVICE_ATTR(isolation, 0644, qeth_dev_isolation_show, qeth_dev_isolation_store); static ssize_t qeth_dev_switch_attrs_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); struct qeth_switch_info sw_info; int rc = 0; if (!card) return -EINVAL; if (card->state != CARD_STATE_SOFTSETUP && card->state != CARD_STATE_UP) return sprintf(buf, "n/a\n"); rc = qeth_query_switch_attributes(card, &sw_info); if (rc) return rc; if (!sw_info.capabilities) rc = sprintf(buf, "unknown"); if (sw_info.capabilities & QETH_SWITCH_FORW_802_1) rc = sprintf(buf, (sw_info.settings & QETH_SWITCH_FORW_802_1 ? "[802.1]" : "802.1")); if (sw_info.capabilities & QETH_SWITCH_FORW_REFL_RELAY) rc += sprintf(buf + rc, (sw_info.settings & QETH_SWITCH_FORW_REFL_RELAY ? " [rr]" : " rr")); rc += sprintf(buf + rc, "\n"); return rc; } static DEVICE_ATTR(switch_attrs, 0444, qeth_dev_switch_attrs_show, NULL); static ssize_t qeth_hw_trap_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); if (!card) return -EINVAL; if (card->info.hwtrap) return snprintf(buf, 5, "arm\n"); else return snprintf(buf, 8, "disarm\n"); } static ssize_t qeth_hw_trap_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); int rc = 0; char *tmp, *curtoken; int state = 0; curtoken = (char *)buf; if (!card) return -EINVAL; mutex_lock(&card->conf_mutex); if (card->state == CARD_STATE_SOFTSETUP || card->state == CARD_STATE_UP) state = 1; tmp = strsep(&curtoken, "\n"); if (!strcmp(tmp, "arm") && !card->info.hwtrap) { if (state) { if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM); if (!rc) card->info.hwtrap = 1; } else rc = -EINVAL; } else card->info.hwtrap = 1; } else if (!strcmp(tmp, "disarm") && card->info.hwtrap) { if (state) { rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); if (!rc) card->info.hwtrap = 0; } else card->info.hwtrap = 0; } else if (!strcmp(tmp, "trap") && state && card->info.hwtrap) rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_CAPTURE); else rc = -EINVAL; mutex_unlock(&card->conf_mutex); return rc ? rc : count; } static DEVICE_ATTR(hw_trap, 0644, qeth_hw_trap_show, qeth_hw_trap_store); static ssize_t qeth_dev_blkt_show(char *buf, struct qeth_card *card, int value) { if (!card) return -EINVAL; return sprintf(buf, "%i\n", value); } static ssize_t qeth_dev_blkt_store(struct qeth_card *card, const char *buf, size_t count, int *value, int max_value) { char *tmp; int i, rc = 0; if (!card) return -EINVAL; mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) { rc = -EPERM; goto out; } i = simple_strtoul(buf, &tmp, 10); if (i <= max_value) *value = i; else rc = -EINVAL; out: mutex_unlock(&card->conf_mutex); return rc ? rc : count; } static ssize_t qeth_dev_blkt_total_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); return qeth_dev_blkt_show(buf, card, card->info.blkt.time_total); } static ssize_t qeth_dev_blkt_total_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); return qeth_dev_blkt_store(card, buf, count, &card->info.blkt.time_total, 5000); } static DEVICE_ATTR(total, 0644, qeth_dev_blkt_total_show, qeth_dev_blkt_total_store); static ssize_t qeth_dev_blkt_inter_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); return qeth_dev_blkt_show(buf, card, card->info.blkt.inter_packet); } static ssize_t qeth_dev_blkt_inter_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); return qeth_dev_blkt_store(card, buf, count, &card->info.blkt.inter_packet, 1000); } static DEVICE_ATTR(inter, 0644, qeth_dev_blkt_inter_show, qeth_dev_blkt_inter_store); static ssize_t qeth_dev_blkt_inter_jumbo_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev_get_drvdata(dev); return qeth_dev_blkt_show(buf, card, card->info.blkt.inter_packet_jumbo); } static ssize_t qeth_dev_blkt_inter_jumbo_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); return qeth_dev_blkt_store(card, buf, count, &card->info.blkt.inter_packet_jumbo, 1000); } static DEVICE_ATTR(inter_jumbo, 0644, qeth_dev_blkt_inter_jumbo_show, qeth_dev_blkt_inter_jumbo_store); static struct attribute *qeth_blkt_device_attrs[] = { &dev_attr_total.attr, &dev_attr_inter.attr, &dev_attr_inter_jumbo.attr, NULL, }; static struct attribute_group qeth_device_blkt_group = { .name = "blkt", .attrs = qeth_blkt_device_attrs, }; static struct attribute *qeth_device_attrs[] = { &dev_attr_state.attr, &dev_attr_chpid.attr, &dev_attr_if_name.attr, &dev_attr_card_type.attr, &dev_attr_inbuf_size.attr, &dev_attr_portno.attr, &dev_attr_portname.attr, &dev_attr_priority_queueing.attr, &dev_attr_buffer_count.attr, &dev_attr_recover.attr, &dev_attr_performance_stats.attr, &dev_attr_layer2.attr, &dev_attr_isolation.attr, &dev_attr_hw_trap.attr, &dev_attr_switch_attrs.attr, NULL, }; static struct attribute_group qeth_device_attr_group = { .attrs = qeth_device_attrs, }; const struct attribute_group *qeth_generic_attr_groups[] = { &qeth_device_attr_group, &qeth_device_blkt_group, NULL, }; static struct attribute *qeth_osn_device_attrs[] = { &dev_attr_state.attr, &dev_attr_chpid.attr, &dev_attr_if_name.attr, &dev_attr_card_type.attr, &dev_attr_buffer_count.attr, &dev_attr_recover.attr, NULL, }; static struct attribute_group qeth_osn_device_attr_group = { .attrs = qeth_osn_device_attrs, }; const struct attribute_group *qeth_osn_attr_groups[] = { &qeth_osn_device_attr_group, NULL, };