/* * * linux/drivers/s390/net/qeth_sys.c ($Revision: 1.54 $) * * Linux on zSeries OSA Express and HiperSockets support * This file contains code related to sysfs. * * Copyright 2000,2003 IBM Corporation * * Author(s): Thomas Spatzier <tspat@de.ibm.com> * Frank Pavlic <pavlic@de.ibm.com> * */ #include <linux/list.h> #include <linux/rwsem.h> #include <asm/ebcdic.h> #include "qeth.h" #include "qeth_mpc.h" #include "qeth_fs.h" const char *VERSION_QETH_SYS_C = "$Revision: 1.54 $"; /*****************************************************************************/ /* */ /* /sys-fs stuff UNDER DEVELOPMENT !!! */ /* */ /*****************************************************************************/ //low/high watermark static ssize_t qeth_dev_state_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; 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->driver_data; 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->driver_data; 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->driver_data; 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 ssize_t qeth_dev_portno_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; 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->driver_data; 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 < 0) || (portno > 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->driver_data; 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->driver_data; 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) < 2)) 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_checksum_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return sprintf(buf, "%s checksumming\n", qeth_get_checksum_str(card)); } static ssize_t qeth_dev_checksum_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; char *tmp; if (!card) return -EINVAL; if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) return -EPERM; tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "sw_checksumming")) card->options.checksum_type = SW_CHECKSUMMING; else if (!strcmp(tmp, "hw_checksumming")) card->options.checksum_type = HW_CHECKSUMMING; else if (!strcmp(tmp, "no_checksumming")) card->options.checksum_type = NO_CHECKSUMMING; else { PRINT_WARN("Unknown checksumming type '%s'\n", tmp); return -EINVAL; } return count; } static DEVICE_ATTR(checksumming, 0644, qeth_dev_checksum_show, qeth_dev_checksum_store); static ssize_t qeth_dev_prioqing_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; 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->driver_data; 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->driver_data; 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->driver_data; 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) { if ((rc = qeth_realloc_buffer_pool(card, cnt))) 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 inline ssize_t qeth_dev_route_show(struct qeth_card *card, struct qeth_routing_info *route, char *buf) { switch (route->type) { case PRIMARY_ROUTER: return sprintf(buf, "%s\n", "primary router"); case SECONDARY_ROUTER: return sprintf(buf, "%s\n", "secondary router"); case MULTICAST_ROUTER: if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO) return sprintf(buf, "%s\n", "multicast router+"); else return sprintf(buf, "%s\n", "multicast router"); case PRIMARY_CONNECTOR: if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO) return sprintf(buf, "%s\n", "primary connector+"); else return sprintf(buf, "%s\n", "primary connector"); case SECONDARY_CONNECTOR: if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO) return sprintf(buf, "%s\n", "secondary connector+"); else return sprintf(buf, "%s\n", "secondary connector"); default: return sprintf(buf, "%s\n", "no"); } } static ssize_t qeth_dev_route4_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_route_show(card, &card->options.route4, buf); } static inline ssize_t qeth_dev_route_store(struct qeth_card *card, struct qeth_routing_info *route, enum qeth_prot_versions prot, const char *buf, size_t count) { enum qeth_routing_types old_route_type = route->type; char *tmp; int rc; tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "no_router")){ route->type = NO_ROUTER; } else if (!strcmp(tmp, "primary_connector")) { route->type = PRIMARY_CONNECTOR; } else if (!strcmp(tmp, "secondary_connector")) { route->type = SECONDARY_CONNECTOR; } else if (!strcmp(tmp, "multicast_router")) { route->type = MULTICAST_ROUTER; } else if (!strcmp(tmp, "primary_router")) { route->type = PRIMARY_ROUTER; } else if (!strcmp(tmp, "secondary_router")) { route->type = SECONDARY_ROUTER; } else if (!strcmp(tmp, "multicast_router")) { route->type = MULTICAST_ROUTER; } else { PRINT_WARN("Invalid routing type '%s'.\n", tmp); return -EINVAL; } if (((card->state == CARD_STATE_SOFTSETUP) || (card->state == CARD_STATE_UP)) && (old_route_type != route->type)){ if (prot == QETH_PROT_IPV4) rc = qeth_setrouting_v4(card); else if (prot == QETH_PROT_IPV6) rc = qeth_setrouting_v6(card); } return count; } static ssize_t qeth_dev_route4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_route_store(card, &card->options.route4, QETH_PROT_IPV4, buf, count); } static DEVICE_ATTR(route4, 0644, qeth_dev_route4_show, qeth_dev_route4_store); #ifdef CONFIG_QETH_IPV6 static ssize_t qeth_dev_route6_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; if (!qeth_is_supported(card, IPA_IPV6)) return sprintf(buf, "%s\n", "n/a"); return qeth_dev_route_show(card, &card->options.route6, buf); } static ssize_t qeth_dev_route6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; if (!qeth_is_supported(card, IPA_IPV6)){ PRINT_WARN("IPv6 not supported for interface %s.\n" "Routing status no changed.\n", QETH_CARD_IFNAME(card)); return -ENOTSUPP; } return qeth_dev_route_store(card, &card->options.route6, QETH_PROT_IPV6, buf, count); } static DEVICE_ATTR(route6, 0644, qeth_dev_route6_show, qeth_dev_route6_store); #endif static ssize_t qeth_dev_add_hhlen_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return sprintf(buf, "%i\n", card->options.add_hhlen); } static ssize_t qeth_dev_add_hhlen_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; 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 < 0) || (i > MAX_ADD_HHLEN)) { PRINT_WARN("add_hhlen out of range\n"); return -EINVAL; } card->options.add_hhlen = i; return count; } static DEVICE_ATTR(add_hhlen, 0644, qeth_dev_add_hhlen_show, qeth_dev_add_hhlen_store); static ssize_t qeth_dev_fake_ll_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return sprintf(buf, "%i\n", card->options.fake_ll? 1:0); } static ssize_t qeth_dev_fake_ll_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; 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, 16); if ((i != 0) && (i != 1)) { PRINT_WARN("fake_ll: write 0 or 1 to this file!\n"); return -EINVAL; } card->options.fake_ll = i; return count; } static DEVICE_ATTR(fake_ll, 0644, qeth_dev_fake_ll_show, qeth_dev_fake_ll_store); static ssize_t qeth_dev_fake_broadcast_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return sprintf(buf, "%i\n", card->options.fake_broadcast? 1:0); } static ssize_t qeth_dev_fake_broadcast_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; 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, 16); if ((i == 0) || (i == 1)) card->options.fake_broadcast = i; else { PRINT_WARN("fake_broadcast: write 0 or 1 to this file!\n"); return -EINVAL; } return count; } static DEVICE_ATTR(fake_broadcast, 0644, qeth_dev_fake_broadcast_show, qeth_dev_fake_broadcast_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->driver_data; 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_broadcast_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) return sprintf(buf, "n/a\n"); return sprintf(buf, "%s\n", (card->options.broadcast_mode == QETH_TR_BROADCAST_ALLRINGS)? "all rings":"local"); } static ssize_t qeth_dev_broadcast_mode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; char *tmp; if (!card) return -EINVAL; if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) return -EPERM; if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || (card->info.link_type == QETH_LINK_TYPE_LANE_TR))){ PRINT_WARN("Device is not a tokenring device!\n"); return -EINVAL; } tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "local")){ card->options.broadcast_mode = QETH_TR_BROADCAST_LOCAL; return count; } else if (!strcmp(tmp, "all_rings")) { card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; return count; } else { PRINT_WARN("broadcast_mode: invalid mode %s!\n", tmp); return -EINVAL; } return count; } static DEVICE_ATTR(broadcast_mode, 0644, qeth_dev_broadcast_mode_show, qeth_dev_broadcast_mode_store); static ssize_t qeth_dev_canonical_macaddr_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) return sprintf(buf, "n/a\n"); return sprintf(buf, "%i\n", (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)? 1:0); } static ssize_t qeth_dev_canonical_macaddr_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; char *tmp; int i; if (!card) return -EINVAL; if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) return -EPERM; if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || (card->info.link_type == QETH_LINK_TYPE_LANE_TR))){ PRINT_WARN("Device is not a tokenring device!\n"); return -EINVAL; } i = simple_strtoul(buf, &tmp, 16); if ((i == 0) || (i == 1)) card->options.macaddr_mode = i? QETH_TR_MACADDR_CANONICAL : QETH_TR_MACADDR_NONCANONICAL; else { PRINT_WARN("canonical_macaddr: write 0 or 1 to this file!\n"); return -EINVAL; } return count; } static DEVICE_ATTR(canonical_macaddr, 0644, qeth_dev_canonical_macaddr_show, qeth_dev_canonical_macaddr_store); static ssize_t qeth_dev_layer2_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; 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->driver_data; char *tmp; int i; if (!card) return -EINVAL; if (card->info.type == QETH_CARD_TYPE_IQD) { PRINT_WARN("Layer2 on Hipersockets is not supported! \n"); return -EPERM; } if (((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER))) return -EPERM; i = simple_strtoul(buf, &tmp, 16); if ((i == 0) || (i == 1)) card->options.layer2 = i; else { PRINT_WARN("layer2: write 0 or 1 to this file!\n"); return -EINVAL; } 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->driver_data; 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->driver_data; 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; if ((rc = qeth_set_large_send(card, type))) 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->driver_data; 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->driver_data; 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->driver_data; 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->driver_data; 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->driver_data; 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->driver_data; 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 device_attribute * qeth_blkt_device_attrs[] = { &dev_attr_total, &dev_attr_inter, &dev_attr_inter_jumbo, NULL, }; static struct attribute_group qeth_device_blkt_group = { .name = "blkt", .attrs = (struct attribute **)qeth_blkt_device_attrs, }; static struct device_attribute * qeth_device_attrs[] = { &dev_attr_state, &dev_attr_chpid, &dev_attr_if_name, &dev_attr_card_type, &dev_attr_portno, &dev_attr_portname, &dev_attr_checksumming, &dev_attr_priority_queueing, &dev_attr_buffer_count, &dev_attr_route4, #ifdef CONFIG_QETH_IPV6 &dev_attr_route6, #endif &dev_attr_add_hhlen, &dev_attr_fake_ll, &dev_attr_fake_broadcast, &dev_attr_recover, &dev_attr_broadcast_mode, &dev_attr_canonical_macaddr, &dev_attr_layer2, &dev_attr_large_send, NULL, }; static struct attribute_group qeth_device_attr_group = { .attrs = (struct attribute **)qeth_device_attrs, }; #define QETH_DEVICE_ATTR(_id,_name,_mode,_show,_store) \ struct device_attribute dev_attr_##_id = { \ .attr = {.name=__stringify(_name), .mode=_mode, .owner=THIS_MODULE },\ .show = _show, \ .store = _store, \ }; int qeth_check_layer2(struct qeth_card *card) { if (card->options.layer2) return -EPERM; return 0; } static ssize_t qeth_dev_ipato_enable_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; if (qeth_check_layer2(card)) return -EPERM; return sprintf(buf, "%i\n", card->ipato.enabled? 1:0); } static ssize_t qeth_dev_ipato_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; char *tmp; if (!card) return -EINVAL; if ((card->state != CARD_STATE_DOWN) && (card->state != CARD_STATE_RECOVER)) return -EPERM; if (qeth_check_layer2(card)) return -EPERM; tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "toggle")){ card->ipato.enabled = (card->ipato.enabled)? 0 : 1; } else if (!strcmp(tmp, "1")){ card->ipato.enabled = 1; } else if (!strcmp(tmp, "0")){ card->ipato.enabled = 0; } else { PRINT_WARN("ipato_enable: write 0, 1 or 'toggle' to " "this file\n"); return -EINVAL; } return count; } static QETH_DEVICE_ATTR(ipato_enable, enable, 0644, qeth_dev_ipato_enable_show, qeth_dev_ipato_enable_store); static ssize_t qeth_dev_ipato_invert4_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; if (qeth_check_layer2(card)) return -EPERM; return sprintf(buf, "%i\n", card->ipato.invert4? 1:0); } static ssize_t qeth_dev_ipato_invert4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; char *tmp; if (!card) return -EINVAL; if (qeth_check_layer2(card)) return -EPERM; tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "toggle")){ card->ipato.invert4 = (card->ipato.invert4)? 0 : 1; } else if (!strcmp(tmp, "1")){ card->ipato.invert4 = 1; } else if (!strcmp(tmp, "0")){ card->ipato.invert4 = 0; } else { PRINT_WARN("ipato_invert4: write 0, 1 or 'toggle' to " "this file\n"); return -EINVAL; } return count; } static QETH_DEVICE_ATTR(ipato_invert4, invert4, 0644, qeth_dev_ipato_invert4_show, qeth_dev_ipato_invert4_store); static inline ssize_t qeth_dev_ipato_add_show(char *buf, struct qeth_card *card, enum qeth_prot_versions proto) { struct qeth_ipato_entry *ipatoe; unsigned long flags; char addr_str[40]; int entry_len; /* length of 1 entry string, differs between v4 and v6 */ int i = 0; if (qeth_check_layer2(card)) return -EPERM; entry_len = (proto == QETH_PROT_IPV4)? 12 : 40; /* add strlen for "/<mask>\n" */ entry_len += (proto == QETH_PROT_IPV4)? 5 : 6; spin_lock_irqsave(&card->ip_lock, flags); list_for_each_entry(ipatoe, &card->ipato.entries, entry){ if (ipatoe->proto != proto) continue; /* String must not be longer than PAGE_SIZE. So we check if * string length gets near PAGE_SIZE. Then we can savely display * the next IPv6 address (worst case, compared to IPv4) */ if ((PAGE_SIZE - i) <= entry_len) break; qeth_ipaddr_to_string(proto, ipatoe->addr, addr_str); i += snprintf(buf + i, PAGE_SIZE - i, "%s/%i\n", addr_str, ipatoe->mask_bits); } spin_unlock_irqrestore(&card->ip_lock, flags); i += snprintf(buf + i, PAGE_SIZE - i, "\n"); return i; } static ssize_t qeth_dev_ipato_add4_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_ipato_add_show(buf, card, QETH_PROT_IPV4); } static inline int qeth_parse_ipatoe(const char* buf, enum qeth_prot_versions proto, u8 *addr, int *mask_bits) { const char *start, *end; char *tmp; char buffer[49] = {0, }; start = buf; /* get address string */ end = strchr(start, '/'); if (!end){ PRINT_WARN("Invalid format for ipato_addx/delx. " "Use <ip addr>/<mask bits>\n"); return -EINVAL; } strncpy(buffer, start, end - start); if (qeth_string_to_ipaddr(buffer, proto, addr)){ PRINT_WARN("Invalid IP address format!\n"); return -EINVAL; } start = end + 1; *mask_bits = simple_strtoul(start, &tmp, 10); return 0; } static inline ssize_t qeth_dev_ipato_add_store(const char *buf, size_t count, struct qeth_card *card, enum qeth_prot_versions proto) { struct qeth_ipato_entry *ipatoe; u8 addr[16]; int mask_bits; int rc; if (qeth_check_layer2(card)) return -EPERM; if ((rc = qeth_parse_ipatoe(buf, proto, addr, &mask_bits))) return rc; if (!(ipatoe = kmalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL))){ PRINT_WARN("No memory to allocate ipato entry\n"); return -ENOMEM; } memset(ipatoe, 0, sizeof(struct qeth_ipato_entry)); ipatoe->proto = proto; memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16); ipatoe->mask_bits = mask_bits; if ((rc = qeth_add_ipato_entry(card, ipatoe))){ kfree(ipatoe); return rc; } return count; } static ssize_t qeth_dev_ipato_add4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV4); } static QETH_DEVICE_ATTR(ipato_add4, add4, 0644, qeth_dev_ipato_add4_show, qeth_dev_ipato_add4_store); static inline ssize_t qeth_dev_ipato_del_store(const char *buf, size_t count, struct qeth_card *card, enum qeth_prot_versions proto) { u8 addr[16]; int mask_bits; int rc; if (qeth_check_layer2(card)) return -EPERM; if ((rc = qeth_parse_ipatoe(buf, proto, addr, &mask_bits))) return rc; qeth_del_ipato_entry(card, proto, addr, mask_bits); return count; } static ssize_t qeth_dev_ipato_del4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV4); } static QETH_DEVICE_ATTR(ipato_del4, del4, 0200, NULL, qeth_dev_ipato_del4_store); #ifdef CONFIG_QETH_IPV6 static ssize_t qeth_dev_ipato_invert6_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; if (qeth_check_layer2(card)) return -EPERM; return sprintf(buf, "%i\n", card->ipato.invert6? 1:0); } static ssize_t qeth_dev_ipato_invert6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; char *tmp; if (!card) return -EINVAL; if (qeth_check_layer2(card)) return -EPERM; tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "toggle")){ card->ipato.invert6 = (card->ipato.invert6)? 0 : 1; } else if (!strcmp(tmp, "1")){ card->ipato.invert6 = 1; } else if (!strcmp(tmp, "0")){ card->ipato.invert6 = 0; } else { PRINT_WARN("ipato_invert6: write 0, 1 or 'toggle' to " "this file\n"); return -EINVAL; } return count; } static QETH_DEVICE_ATTR(ipato_invert6, invert6, 0644, qeth_dev_ipato_invert6_show, qeth_dev_ipato_invert6_store); static ssize_t qeth_dev_ipato_add6_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_ipato_add_show(buf, card, QETH_PROT_IPV6); } static ssize_t qeth_dev_ipato_add6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV6); } static QETH_DEVICE_ATTR(ipato_add6, add6, 0644, qeth_dev_ipato_add6_show, qeth_dev_ipato_add6_store); static ssize_t qeth_dev_ipato_del6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV6); } static QETH_DEVICE_ATTR(ipato_del6, del6, 0200, NULL, qeth_dev_ipato_del6_store); #endif /* CONFIG_QETH_IPV6 */ static struct device_attribute * qeth_ipato_device_attrs[] = { &dev_attr_ipato_enable, &dev_attr_ipato_invert4, &dev_attr_ipato_add4, &dev_attr_ipato_del4, #ifdef CONFIG_QETH_IPV6 &dev_attr_ipato_invert6, &dev_attr_ipato_add6, &dev_attr_ipato_del6, #endif NULL, }; static struct attribute_group qeth_device_ipato_group = { .name = "ipa_takeover", .attrs = (struct attribute **)qeth_ipato_device_attrs, }; static inline ssize_t qeth_dev_vipa_add_show(char *buf, struct qeth_card *card, enum qeth_prot_versions proto) { struct qeth_ipaddr *ipaddr; char addr_str[40]; int entry_len; /* length of 1 entry string, differs between v4 and v6 */ unsigned long flags; int i = 0; if (qeth_check_layer2(card)) return -EPERM; entry_len = (proto == QETH_PROT_IPV4)? 12 : 40; entry_len += 2; /* \n + terminator */ spin_lock_irqsave(&card->ip_lock, flags); list_for_each_entry(ipaddr, &card->ip_list, entry){ if (ipaddr->proto != proto) continue; if (ipaddr->type != QETH_IP_TYPE_VIPA) continue; /* String must not be longer than PAGE_SIZE. So we check if * string length gets near PAGE_SIZE. Then we can savely display * the next IPv6 address (worst case, compared to IPv4) */ if ((PAGE_SIZE - i) <= entry_len) break; qeth_ipaddr_to_string(proto, (const u8 *)&ipaddr->u, addr_str); i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str); } spin_unlock_irqrestore(&card->ip_lock, flags); i += snprintf(buf + i, PAGE_SIZE - i, "\n"); return i; } static ssize_t qeth_dev_vipa_add4_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_vipa_add_show(buf, card, QETH_PROT_IPV4); } static inline int qeth_parse_vipae(const char* buf, enum qeth_prot_versions proto, u8 *addr) { if (qeth_string_to_ipaddr(buf, proto, addr)){ PRINT_WARN("Invalid IP address format!\n"); return -EINVAL; } return 0; } static inline ssize_t qeth_dev_vipa_add_store(const char *buf, size_t count, struct qeth_card *card, enum qeth_prot_versions proto) { u8 addr[16] = {0, }; int rc; if (qeth_check_layer2(card)) return -EPERM; if ((rc = qeth_parse_vipae(buf, proto, addr))) return rc; if ((rc = qeth_add_vipa(card, proto, addr))) return rc; return count; } static ssize_t qeth_dev_vipa_add4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV4); } static QETH_DEVICE_ATTR(vipa_add4, add4, 0644, qeth_dev_vipa_add4_show, qeth_dev_vipa_add4_store); static inline ssize_t qeth_dev_vipa_del_store(const char *buf, size_t count, struct qeth_card *card, enum qeth_prot_versions proto) { u8 addr[16]; int rc; if (qeth_check_layer2(card)) return -EPERM; if ((rc = qeth_parse_vipae(buf, proto, addr))) return rc; qeth_del_vipa(card, proto, addr); return count; } static ssize_t qeth_dev_vipa_del4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV4); } static QETH_DEVICE_ATTR(vipa_del4, del4, 0200, NULL, qeth_dev_vipa_del4_store); #ifdef CONFIG_QETH_IPV6 static ssize_t qeth_dev_vipa_add6_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_vipa_add_show(buf, card, QETH_PROT_IPV6); } static ssize_t qeth_dev_vipa_add6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV6); } static QETH_DEVICE_ATTR(vipa_add6, add6, 0644, qeth_dev_vipa_add6_show, qeth_dev_vipa_add6_store); static ssize_t qeth_dev_vipa_del6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; if (qeth_check_layer2(card)) return -EPERM; return qeth_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV6); } static QETH_DEVICE_ATTR(vipa_del6, del6, 0200, NULL, qeth_dev_vipa_del6_store); #endif /* CONFIG_QETH_IPV6 */ static struct device_attribute * qeth_vipa_device_attrs[] = { &dev_attr_vipa_add4, &dev_attr_vipa_del4, #ifdef CONFIG_QETH_IPV6 &dev_attr_vipa_add6, &dev_attr_vipa_del6, #endif NULL, }; static struct attribute_group qeth_device_vipa_group = { .name = "vipa", .attrs = (struct attribute **)qeth_vipa_device_attrs, }; static inline ssize_t qeth_dev_rxip_add_show(char *buf, struct qeth_card *card, enum qeth_prot_versions proto) { struct qeth_ipaddr *ipaddr; char addr_str[40]; int entry_len; /* length of 1 entry string, differs between v4 and v6 */ unsigned long flags; int i = 0; if (qeth_check_layer2(card)) return -EPERM; entry_len = (proto == QETH_PROT_IPV4)? 12 : 40; entry_len += 2; /* \n + terminator */ spin_lock_irqsave(&card->ip_lock, flags); list_for_each_entry(ipaddr, &card->ip_list, entry){ if (ipaddr->proto != proto) continue; if (ipaddr->type != QETH_IP_TYPE_RXIP) continue; /* String must not be longer than PAGE_SIZE. So we check if * string length gets near PAGE_SIZE. Then we can savely display * the next IPv6 address (worst case, compared to IPv4) */ if ((PAGE_SIZE - i) <= entry_len) break; qeth_ipaddr_to_string(proto, (const u8 *)&ipaddr->u, addr_str); i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str); } spin_unlock_irqrestore(&card->ip_lock, flags); i += snprintf(buf + i, PAGE_SIZE - i, "\n"); return i; } static ssize_t qeth_dev_rxip_add4_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_rxip_add_show(buf, card, QETH_PROT_IPV4); } static inline int qeth_parse_rxipe(const char* buf, enum qeth_prot_versions proto, u8 *addr) { if (qeth_string_to_ipaddr(buf, proto, addr)){ PRINT_WARN("Invalid IP address format!\n"); return -EINVAL; } return 0; } static inline ssize_t qeth_dev_rxip_add_store(const char *buf, size_t count, struct qeth_card *card, enum qeth_prot_versions proto) { u8 addr[16] = {0, }; int rc; if (qeth_check_layer2(card)) return -EPERM; if ((rc = qeth_parse_rxipe(buf, proto, addr))) return rc; if ((rc = qeth_add_rxip(card, proto, addr))) return rc; return count; } static ssize_t qeth_dev_rxip_add4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV4); } static QETH_DEVICE_ATTR(rxip_add4, add4, 0644, qeth_dev_rxip_add4_show, qeth_dev_rxip_add4_store); static inline ssize_t qeth_dev_rxip_del_store(const char *buf, size_t count, struct qeth_card *card, enum qeth_prot_versions proto) { u8 addr[16]; int rc; if (qeth_check_layer2(card)) return -EPERM; if ((rc = qeth_parse_rxipe(buf, proto, addr))) return rc; qeth_del_rxip(card, proto, addr); return count; } static ssize_t qeth_dev_rxip_del4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV4); } static QETH_DEVICE_ATTR(rxip_del4, del4, 0200, NULL, qeth_dev_rxip_del4_store); #ifdef CONFIG_QETH_IPV6 static ssize_t qeth_dev_rxip_add6_show(struct device *dev, struct device_attribute *attr, char *buf) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_rxip_add_show(buf, card, QETH_PROT_IPV6); } static ssize_t qeth_dev_rxip_add6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV6); } static QETH_DEVICE_ATTR(rxip_add6, add6, 0644, qeth_dev_rxip_add6_show, qeth_dev_rxip_add6_store); static ssize_t qeth_dev_rxip_del6_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev->driver_data; if (!card) return -EINVAL; return qeth_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV6); } static QETH_DEVICE_ATTR(rxip_del6, del6, 0200, NULL, qeth_dev_rxip_del6_store); #endif /* CONFIG_QETH_IPV6 */ static struct device_attribute * qeth_rxip_device_attrs[] = { &dev_attr_rxip_add4, &dev_attr_rxip_del4, #ifdef CONFIG_QETH_IPV6 &dev_attr_rxip_add6, &dev_attr_rxip_del6, #endif NULL, }; static struct attribute_group qeth_device_rxip_group = { .name = "rxip", .attrs = (struct attribute **)qeth_rxip_device_attrs, }; int qeth_create_device_attributes(struct device *dev) { int ret; if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_attr_group))) return ret; if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_ipato_group))){ sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); return ret; } if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_vipa_group))){ sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group); return ret; } if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_rxip_group))){ sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group); sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group); } if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_blkt_group))) return ret; return ret; } void qeth_remove_device_attributes(struct device *dev) { sysfs_remove_group(&dev->kobj, &qeth_device_attr_group); sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group); sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group); sysfs_remove_group(&dev->kobj, &qeth_device_rxip_group); sysfs_remove_group(&dev->kobj, &qeth_device_blkt_group); } /**********************/ /* DRIVER ATTRIBUTES */ /**********************/ static ssize_t qeth_driver_group_store(struct device_driver *ddrv, const char *buf, size_t count) { const char *start, *end; char bus_ids[3][BUS_ID_SIZE], *argv[3]; int i; int err; start = buf; for (i = 0; i < 3; i++) { static const char delim[] = { ',', ',', '\n' }; int len; if (!(end = strchr(start, delim[i]))) return -EINVAL; len = min_t(ptrdiff_t, BUS_ID_SIZE, end - start); strncpy(bus_ids[i], start, len); bus_ids[i][len] = '\0'; start = end + 1; argv[i] = bus_ids[i]; } err = ccwgroup_create(qeth_root_dev, qeth_ccwgroup_driver.driver_id, &qeth_ccw_driver, 3, argv); if (err) return err; else return count; } static DRIVER_ATTR(group, 0200, 0, qeth_driver_group_store); static ssize_t qeth_driver_notifier_register_store(struct device_driver *ddrv, const char *buf, size_t count) { int rc; int signum; char *tmp, *tmp2; tmp = strsep((char **) &buf, "\n"); if (!strncmp(tmp, "unregister", 10)){ if ((rc = qeth_notifier_unregister(current))) return rc; return count; } signum = simple_strtoul(tmp, &tmp2, 10); if ((signum < 0) || (signum > 32)){ PRINT_WARN("Signal number %d is out of range\n", signum); return -EINVAL; } if ((rc = qeth_notifier_register(current, signum))) return rc; return count; } static DRIVER_ATTR(notifier_register, 0200, 0, qeth_driver_notifier_register_store); int qeth_create_driver_attributes(void) { int rc; if ((rc = driver_create_file(&qeth_ccwgroup_driver.driver, &driver_attr_group))) return rc; return driver_create_file(&qeth_ccwgroup_driver.driver, &driver_attr_notifier_register); } void qeth_remove_driver_attributes(void) { driver_remove_file(&qeth_ccwgroup_driver.driver, &driver_attr_group); driver_remove_file(&qeth_ccwgroup_driver.driver, &driver_attr_notifier_register); }