diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/s390/net/qeth_core_sys.c | 651 |
1 files changed, 651 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c new file mode 100644 index 000000000000..08a50f057284 --- /dev/null +++ b/drivers/s390/net/qeth_core_sys.c @@ -0,0 +1,651 @@ +/* + * drivers/s390/net/qeth_core_sys.c + * + * 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> + */ + +#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; + + if (!card) + return -EINVAL; + + if ((card->state != CARD_STATE_DOWN) && + (card->state != CARD_STATE_RECOVER)) + return -EPERM; + + portno = simple_strtoul(buf, &tmp, 16); + if (portno > QETH_MAX_PORTNO) { + PRINT_WARN("portno 0x%X is out of range\n", portno); + return -EINVAL; + } + + card->info.portno = portno; + return 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; + + if (!card) + return -EINVAL; + + if ((card->state != CARD_STATE_DOWN) && + (card->state != CARD_STATE_RECOVER)) + return -EPERM; + + tmp = strsep((char **) &buf, "\n"); + if ((strlen(tmp) > 8) || (strlen(tmp) == 0)) + return -EINVAL; + + 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); + + return 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"); + 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; + + if (!card) + return -EINVAL; + + if ((card->state != CARD_STATE_DOWN) && + (card->state != CARD_STATE_RECOVER)) + return -EPERM; + + /* check if 1920 devices are supported , + * if though we have to permit priority queueing + */ + if (card->qdio.no_out_queues == 1) { + PRINT_WARN("Priority queueing disabled due " + "to hardware limitations!\n"); + card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; + return -EPERM; + } + + tmp = strsep((char **) &buf, "\n"); + if (!strcmp(tmp, "prio_queueing_prec")) + card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_PREC; + else if (!strcmp(tmp, "prio_queueing_tos")) + card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS; + 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 { + PRINT_WARN("Unknown queueing type '%s'\n", tmp); + return -EINVAL; + } + return 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; + + if (!card) + return -EINVAL; + + if ((card->state != CARD_STATE_DOWN) && + (card->state != CARD_STATE_RECOVER)) + return -EPERM; + + 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); + if (rc) + PRINT_WARN("Error (%d) while setting " + "buffer count.\n", rc); + } + return 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; + + if (!card) + return -EINVAL; + + i = simple_strtoul(buf, &tmp, 16); + if ((i == 0) || (i == 1)) { + if (i == card->options.performance_stats) + return count; + 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 { + PRINT_WARN("performance_stats: write 0 or 1 to this file!\n"); + return -EINVAL; + } + return 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 ? 1:0); +} + +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; + enum qeth_discipline_id newdis; + + if (!card) + return -EINVAL; + + if (((card->state != CARD_STATE_DOWN) && + (card->state != CARD_STATE_RECOVER))) + return -EPERM; + + i = simple_strtoul(buf, &tmp, 16); + switch (i) { + case 0: + newdis = QETH_DISCIPLINE_LAYER3; + break; + case 1: + newdis = QETH_DISCIPLINE_LAYER2; + break; + default: + PRINT_WARN("layer2: write 0 or 1 to this file!\n"); + return -EINVAL; + } + + if (card->options.layer2 == newdis) { + return count; + } else { + if (card->discipline.ccwgdriver) { + card->discipline.ccwgdriver->remove(card->gdev); + qeth_core_free_discipline(card); + } + } + + rc = qeth_core_load_discipline(card, newdis); + if (rc) + return rc; + + rc = card->discipline.ccwgdriver->probe(card->gdev); + if (rc) + return rc; + return count; +} + +static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show, + qeth_dev_layer2_store); + +static ssize_t qeth_dev_large_send_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.large_send) { + case QETH_LARGE_SEND_NO: + return sprintf(buf, "%s\n", "no"); + case QETH_LARGE_SEND_EDDP: + return sprintf(buf, "%s\n", "EDDP"); + case QETH_LARGE_SEND_TSO: + return sprintf(buf, "%s\n", "TSO"); + default: + return sprintf(buf, "%s\n", "N/A"); + } +} + +static ssize_t qeth_dev_large_send_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct qeth_card *card = dev_get_drvdata(dev); + enum qeth_large_send_types type; + int rc = 0; + char *tmp; + + if (!card) + return -EINVAL; + tmp = strsep((char **) &buf, "\n"); + if (!strcmp(tmp, "no")) { + type = QETH_LARGE_SEND_NO; + } else if (!strcmp(tmp, "EDDP")) { + type = QETH_LARGE_SEND_EDDP; + } else if (!strcmp(tmp, "TSO")) { + type = QETH_LARGE_SEND_TSO; + } else { + PRINT_WARN("large_send: invalid mode %s!\n", tmp); + return -EINVAL; + } + if (card->options.large_send == type) + return count; + rc = qeth_set_large_send(card, type); + if (rc) + return rc; + return count; +} + +static DEVICE_ATTR(large_send, 0644, qeth_dev_large_send_show, + qeth_dev_large_send_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; + + if (!card) + return -EINVAL; + + if ((card->state != CARD_STATE_DOWN) && + (card->state != CARD_STATE_RECOVER)) + return -EPERM; + + i = simple_strtoul(buf, &tmp, 10); + if (i <= max_value) { + *value = i; + } else { + PRINT_WARN("blkt total time: write values between" + " 0 and %d to this file!\n", max_value); + return -EINVAL; + } + return 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, 1000); +} + + + +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, 100); +} + +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, 100); +} + +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_large_send.attr, + NULL, +}; + +static struct attribute_group qeth_device_attr_group = { + .attrs = qeth_device_attrs, +}; + +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, +}; + +int qeth_core_create_device_attributes(struct device *dev) +{ + int ret; + ret = sysfs_create_group(&dev->kobj, &qeth_device_attr_group); + if (ret) + return ret; + ret = sysfs_create_group(&dev->kobj, &qeth_device_blkt_group); + if (ret) + sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); + + return 0; +} + +void qeth_core_remove_device_attributes(struct device *dev) +{ + sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); + sysfs_remove_group(&dev->kobj, &qeth_device_blkt_group); +} + +int qeth_core_create_osn_attributes(struct device *dev) +{ + return sysfs_create_group(&dev->kobj, &qeth_osn_device_attr_group); +} + +void qeth_core_remove_osn_attributes(struct device *dev) +{ + sysfs_remove_group(&dev->kobj, &qeth_osn_device_attr_group); + return; +} |