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path: root/drivers/s390/net/qeth_core_sys.c
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Diffstat (limited to 'drivers/s390/net/qeth_core_sys.c')
-rw-r--r--drivers/s390/net/qeth_core_sys.c651
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 00000000000..08a50f05728
--- /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;
+}