/* * Copyright (c) 2012 Intel Corporation. All rights reserved. * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. * Copyright (c) 2006 PathScale, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include "qib.h" #include "qib_mad.h" static struct qib_pportdata *qib_get_pportdata_kobj(struct kobject *kobj) { u32 port_num; struct ib_device *ibdev = ib_port_sysfs_get_ibdev_kobj(kobj, &port_num); struct qib_devdata *dd = dd_from_ibdev(ibdev); return &dd->pport[port_num - 1]; } /* * Get/Set heartbeat enable. OR of 1=enabled, 2=auto */ static ssize_t hrtbt_enable_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_pportdata *ppd = &dd->pport[port_num - 1]; return sysfs_emit(buf, "%d\n", dd->f_get_ib_cfg(ppd, QIB_IB_CFG_HRTBT)); } static ssize_t hrtbt_enable_store(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, const char *buf, size_t count) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_pportdata *ppd = &dd->pport[port_num - 1]; int ret; u16 val; ret = kstrtou16(buf, 0, &val); if (ret) { qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n"); return ret; } /* * Set the "intentional" heartbeat enable per either of * "Enable" and "Auto", as these are normally set together. * This bit is consulted when leaving loopback mode, * because entering loopback mode overrides it and automatically * disables heartbeat. */ ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val); return ret < 0 ? ret : count; } static IB_PORT_ATTR_RW(hrtbt_enable); static ssize_t loopback_store(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, const char *buf, size_t count) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_pportdata *ppd = &dd->pport[port_num - 1]; int ret = count, r; r = dd->f_set_ib_loopback(ppd, buf); if (r < 0) ret = r; return ret; } static IB_PORT_ATTR_WO(loopback); static ssize_t led_override_store(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, const char *buf, size_t count) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_pportdata *ppd = &dd->pport[port_num - 1]; int ret; u16 val; ret = kstrtou16(buf, 0, &val); if (ret) { qib_dev_err(dd, "attempt to set invalid LED override\n"); return ret; } qib_set_led_override(ppd, val); return count; } static IB_PORT_ATTR_WO(led_override); static ssize_t status_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_pportdata *ppd = &dd->pport[port_num - 1]; if (!ppd->statusp) return -EINVAL; return sysfs_emit(buf, "0x%llx\n", (unsigned long long)*(ppd->statusp)); } static IB_PORT_ATTR_RO(status); /* * For userland compatibility, these offsets must remain fixed. * They are strings for QIB_STATUS_* */ static const char * const qib_status_str[] = { "Initted", "", "", "", "", "Present", "IB_link_up", "IB_configured", "", "Fatal_Hardware_Error", NULL, }; static ssize_t status_str_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_pportdata *ppd = &dd->pport[port_num - 1]; int i, any; u64 s; ssize_t ret; if (!ppd->statusp) { ret = -EINVAL; goto bail; } s = *(ppd->statusp); *buf = '\0'; for (any = i = 0; s && qib_status_str[i]; i++) { if (s & 1) { /* if overflow */ if (any && strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) break; if (strlcat(buf, qib_status_str[i], PAGE_SIZE) >= PAGE_SIZE) break; any = 1; } s >>= 1; } if (any) strlcat(buf, "\n", PAGE_SIZE); ret = strlen(buf); bail: return ret; } static IB_PORT_ATTR_RO(status_str); /* end of per-port functions */ static struct attribute *port_linkcontrol_attributes[] = { &ib_port_attr_loopback.attr, &ib_port_attr_led_override.attr, &ib_port_attr_hrtbt_enable.attr, &ib_port_attr_status.attr, &ib_port_attr_status_str.attr, NULL }; static const struct attribute_group port_linkcontrol_group = { .name = "linkcontrol", .attrs = port_linkcontrol_attributes, }; /* * Start of per-port congestion control structures and support code */ /* * Congestion control table size followed by table entries */ static ssize_t cc_table_bin_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) { struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj); int ret; if (!qib_cc_table_size || !ppd->ccti_entries_shadow) return -EINVAL; ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow) + sizeof(__be16); if (pos > ret) return -EINVAL; if (count > ret - pos) count = ret - pos; if (!count) return count; spin_lock(&ppd->cc_shadow_lock); memcpy(buf, ppd->ccti_entries_shadow, count); spin_unlock(&ppd->cc_shadow_lock); return count; } static BIN_ATTR_RO(cc_table_bin, PAGE_SIZE); /* * Congestion settings: port control, control map and an array of 16 * entries for the congestion entries - increase, timer, event log * trigger threshold and the minimum injection rate delay. */ static ssize_t cc_setting_bin_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) { struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj); int ret; if (!qib_cc_table_size || !ppd->congestion_entries_shadow) return -EINVAL; ret = sizeof(struct ib_cc_congestion_setting_attr_shadow); if (pos > ret) return -EINVAL; if (count > ret - pos) count = ret - pos; if (!count) return count; spin_lock(&ppd->cc_shadow_lock); memcpy(buf, ppd->congestion_entries_shadow, count); spin_unlock(&ppd->cc_shadow_lock); return count; } static BIN_ATTR_RO(cc_setting_bin, PAGE_SIZE); static struct bin_attribute *port_ccmgta_attributes[] = { &bin_attr_cc_setting_bin, &bin_attr_cc_table_bin, NULL, }; static umode_t qib_ccmgta_is_bin_visible(struct kobject *kobj, struct bin_attribute *attr, int n) { struct qib_pportdata *ppd = qib_get_pportdata_kobj(kobj); if (!qib_cc_table_size || !ppd->congestion_entries_shadow) return 0; return attr->attr.mode; } static const struct attribute_group port_ccmgta_attribute_group = { .name = "CCMgtA", .is_bin_visible = qib_ccmgta_is_bin_visible, .bin_attrs = port_ccmgta_attributes, }; /* Start sl2vl */ struct qib_sl2vl_attr { struct ib_port_attribute attr; int sl; }; static ssize_t sl2vl_attr_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct qib_sl2vl_attr *sattr = container_of(attr, struct qib_sl2vl_attr, attr); struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; return sysfs_emit(buf, "%u\n", qibp->sl_to_vl[sattr->sl]); } #define QIB_SL2VL_ATTR(N) \ static struct qib_sl2vl_attr qib_sl2vl_attr_##N = { \ .attr = __ATTR(N, 0444, sl2vl_attr_show, NULL), \ .sl = N, \ } QIB_SL2VL_ATTR(0); QIB_SL2VL_ATTR(1); QIB_SL2VL_ATTR(2); QIB_SL2VL_ATTR(3); QIB_SL2VL_ATTR(4); QIB_SL2VL_ATTR(5); QIB_SL2VL_ATTR(6); QIB_SL2VL_ATTR(7); QIB_SL2VL_ATTR(8); QIB_SL2VL_ATTR(9); QIB_SL2VL_ATTR(10); QIB_SL2VL_ATTR(11); QIB_SL2VL_ATTR(12); QIB_SL2VL_ATTR(13); QIB_SL2VL_ATTR(14); QIB_SL2VL_ATTR(15); static struct attribute *port_sl2vl_attributes[] = { &qib_sl2vl_attr_0.attr.attr, &qib_sl2vl_attr_1.attr.attr, &qib_sl2vl_attr_2.attr.attr, &qib_sl2vl_attr_3.attr.attr, &qib_sl2vl_attr_4.attr.attr, &qib_sl2vl_attr_5.attr.attr, &qib_sl2vl_attr_6.attr.attr, &qib_sl2vl_attr_7.attr.attr, &qib_sl2vl_attr_8.attr.attr, &qib_sl2vl_attr_9.attr.attr, &qib_sl2vl_attr_10.attr.attr, &qib_sl2vl_attr_11.attr.attr, &qib_sl2vl_attr_12.attr.attr, &qib_sl2vl_attr_13.attr.attr, &qib_sl2vl_attr_14.attr.attr, &qib_sl2vl_attr_15.attr.attr, NULL }; static const struct attribute_group port_sl2vl_group = { .name = "sl2vl", .attrs = port_sl2vl_attributes, }; /* End sl2vl */ /* Start diag_counters */ struct qib_diagc_attr { struct ib_port_attribute attr; size_t counter; }; static ssize_t diagc_attr_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct qib_diagc_attr *dattr = container_of(attr, struct qib_diagc_attr, attr); struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; return sysfs_emit(buf, "%llu\n", *((u64 *)qibp + dattr->counter)); } static ssize_t diagc_attr_store(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, const char *buf, size_t count) { struct qib_diagc_attr *dattr = container_of(attr, struct qib_diagc_attr, attr); struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; u64 val; int ret; ret = kstrtou64(buf, 0, &val); if (ret) return ret; *((u64 *)qibp + dattr->counter) = val; return count; } #define QIB_DIAGC_ATTR(N) \ static struct qib_diagc_attr qib_diagc_attr_##N = { \ .attr = __ATTR(N, 0664, diagc_attr_show, diagc_attr_store), \ .counter = &((struct qib_ibport *)0)->rvp.n_##N - (u64 *)0, \ } QIB_DIAGC_ATTR(rc_resends); QIB_DIAGC_ATTR(seq_naks); QIB_DIAGC_ATTR(rdma_seq); QIB_DIAGC_ATTR(rnr_naks); QIB_DIAGC_ATTR(other_naks); QIB_DIAGC_ATTR(rc_timeouts); QIB_DIAGC_ATTR(loop_pkts); QIB_DIAGC_ATTR(pkt_drops); QIB_DIAGC_ATTR(dmawait); QIB_DIAGC_ATTR(unaligned); QIB_DIAGC_ATTR(rc_dupreq); QIB_DIAGC_ATTR(rc_seqnak); QIB_DIAGC_ATTR(rc_crwaits); static u64 get_all_cpu_total(u64 __percpu *cntr) { int cpu; u64 counter = 0; for_each_possible_cpu(cpu) counter += *per_cpu_ptr(cntr, cpu); return counter; } static ssize_t qib_store_per_cpu(struct qib_devdata *dd, const char *buf, size_t count, u64 *zero, u64 cur) { u32 val; int ret; ret = kstrtou32(buf, 0, &val); if (ret) return ret; if (val != 0) { qib_dev_err(dd, "Per CPU cntrs can only be zeroed"); return count; } *zero = cur; return count; } static ssize_t rc_acks_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; return sysfs_emit(buf, "%llu\n", get_all_cpu_total(qibp->rvp.rc_acks) - qibp->rvp.z_rc_acks); } static ssize_t rc_acks_store(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, const char *buf, size_t count) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_acks, get_all_cpu_total(qibp->rvp.rc_acks)); } static IB_PORT_ATTR_RW(rc_acks); static ssize_t rc_qacks_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; return sysfs_emit(buf, "%llu\n", get_all_cpu_total(qibp->rvp.rc_qacks) - qibp->rvp.z_rc_qacks); } static ssize_t rc_qacks_store(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, const char *buf, size_t count) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_qacks, get_all_cpu_total(qibp->rvp.rc_qacks)); } static IB_PORT_ATTR_RW(rc_qacks); static ssize_t rc_delayed_comp_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; return sysfs_emit(buf, "%llu\n", get_all_cpu_total(qibp->rvp.rc_delayed_comp) - qibp->rvp.z_rc_delayed_comp); } static ssize_t rc_delayed_comp_store(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, const char *buf, size_t count) { struct qib_devdata *dd = dd_from_ibdev(ibdev); struct qib_ibport *qibp = &dd->pport[port_num - 1].ibport_data; return qib_store_per_cpu(dd, buf, count, &qibp->rvp.z_rc_delayed_comp, get_all_cpu_total(qibp->rvp.rc_delayed_comp)); } static IB_PORT_ATTR_RW(rc_delayed_comp); static struct attribute *port_diagc_attributes[] = { &qib_diagc_attr_rc_resends.attr.attr, &qib_diagc_attr_seq_naks.attr.attr, &qib_diagc_attr_rdma_seq.attr.attr, &qib_diagc_attr_rnr_naks.attr.attr, &qib_diagc_attr_other_naks.attr.attr, &qib_diagc_attr_rc_timeouts.attr.attr, &qib_diagc_attr_loop_pkts.attr.attr, &qib_diagc_attr_pkt_drops.attr.attr, &qib_diagc_attr_dmawait.attr.attr, &qib_diagc_attr_unaligned.attr.attr, &qib_diagc_attr_rc_dupreq.attr.attr, &qib_diagc_attr_rc_seqnak.attr.attr, &qib_diagc_attr_rc_crwaits.attr.attr, &ib_port_attr_rc_acks.attr, &ib_port_attr_rc_qacks.attr, &ib_port_attr_rc_delayed_comp.attr, NULL }; static const struct attribute_group port_diagc_group = { .name = "linkcontrol", .attrs = port_diagc_attributes, }; /* End diag_counters */ const struct attribute_group *qib_attr_port_groups[] = { &port_linkcontrol_group, &port_ccmgta_attribute_group, &port_sl2vl_group, &port_diagc_group, NULL, }; /* end of per-port file structures and support code */ /* * Start of per-unit (or driver, in some cases, but replicated * per unit) functions (these get a device *) */ static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr, char *buf) { struct qib_ibdev *dev = rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); return sysfs_emit(buf, "%x\n", dd_from_dev(dev)->minrev); } static DEVICE_ATTR_RO(hw_rev); static ssize_t hca_type_show(struct device *device, struct device_attribute *attr, char *buf) { struct qib_ibdev *dev = rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); struct qib_devdata *dd = dd_from_dev(dev); if (!dd->boardname) return -EINVAL; return sysfs_emit(buf, "%s\n", dd->boardname); } static DEVICE_ATTR_RO(hca_type); static DEVICE_ATTR(board_id, 0444, hca_type_show, NULL); static ssize_t version_show(struct device *device, struct device_attribute *attr, char *buf) { /* The string printed here is already newline-terminated. */ return sysfs_emit(buf, "%s", (char *)ib_qib_version); } static DEVICE_ATTR_RO(version); static ssize_t boardversion_show(struct device *device, struct device_attribute *attr, char *buf) { struct qib_ibdev *dev = rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); struct qib_devdata *dd = dd_from_dev(dev); /* The string printed here is already newline-terminated. */ return sysfs_emit(buf, "%s", dd->boardversion); } static DEVICE_ATTR_RO(boardversion); static ssize_t localbus_info_show(struct device *device, struct device_attribute *attr, char *buf) { struct qib_ibdev *dev = rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); struct qib_devdata *dd = dd_from_dev(dev); /* The string printed here is already newline-terminated. */ return sysfs_emit(buf, "%s", dd->lbus_info); } static DEVICE_ATTR_RO(localbus_info); static ssize_t nctxts_show(struct device *device, struct device_attribute *attr, char *buf) { struct qib_ibdev *dev = rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); struct qib_devdata *dd = dd_from_dev(dev); /* Return the number of user ports (contexts) available. */ /* The calculation below deals with a special case where * cfgctxts is set to 1 on a single-port board. */ return sysfs_emit(buf, "%u\n", (dd->first_user_ctxt > dd->cfgctxts) ? 0 : (dd->cfgctxts - dd->first_user_ctxt)); } static DEVICE_ATTR_RO(nctxts); static ssize_t nfreectxts_show(struct device *device, struct device_attribute *attr, char *buf) { struct qib_ibdev *dev = rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); struct qib_devdata *dd = dd_from_dev(dev); /* Return the number of free user ports (contexts) available. */ return sysfs_emit(buf, "%u\n", dd->freectxts); } static DEVICE_ATTR_RO(nfreectxts); static ssize_t serial_show(struct device *device, struct device_attribute *attr, char *buf) { struct qib_ibdev *dev = rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); struct qib_devdata *dd = dd_from_dev(dev); const u8 *end = memchr(dd->serial, 0, ARRAY_SIZE(dd->serial)); int size = end ? end - dd->serial : ARRAY_SIZE(dd->serial); return sysfs_emit(buf, ".%*s\n", size, dd->serial); } static DEVICE_ATTR_RO(serial); static ssize_t chip_reset_store(struct device *device, struct device_attribute *attr, const char *buf, size_t count) { struct qib_ibdev *dev = rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); struct qib_devdata *dd = dd_from_dev(dev); int ret; if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) { ret = -EINVAL; goto bail; } ret = qib_reset_device(dd->unit); bail: return ret < 0 ? ret : count; } static DEVICE_ATTR_WO(chip_reset); /* * Dump tempsense regs. in decimal, to ease shell-scripts. */ static ssize_t tempsense_show(struct device *device, struct device_attribute *attr, char *buf) { struct qib_ibdev *dev = rdma_device_to_drv_device(device, struct qib_ibdev, rdi.ibdev); struct qib_devdata *dd = dd_from_dev(dev); int i; u8 regvals[8]; for (i = 0; i < 8; i++) { int ret; if (i == 6) continue; ret = dd->f_tempsense_rd(dd, i); if (ret < 0) return ret; /* return error on bad read */ regvals[i] = ret; } return sysfs_emit(buf, "%d %d %02X %02X %d %d\n", (signed char)regvals[0], (signed char)regvals[1], regvals[2], regvals[3], (signed char)regvals[5], (signed char)regvals[7]); } static DEVICE_ATTR_RO(tempsense); /* * end of per-unit (or driver, in some cases, but replicated * per unit) functions */ /* start of per-unit file structures and support code */ static struct attribute *qib_attributes[] = { &dev_attr_hw_rev.attr, &dev_attr_hca_type.attr, &dev_attr_board_id.attr, &dev_attr_version.attr, &dev_attr_nctxts.attr, &dev_attr_nfreectxts.attr, &dev_attr_serial.attr, &dev_attr_boardversion.attr, &dev_attr_tempsense.attr, &dev_attr_localbus_info.attr, &dev_attr_chip_reset.attr, NULL, }; const struct attribute_group qib_attr_group = { .attrs = qib_attributes, };