/* * Copyright (c) 2006, 2007, 2008 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 <linux/ctype.h> #include "ipath_kernel.h" #include "ipath_verbs.h" #include "ipath_common.h" /** * ipath_parse_ushort - parse an unsigned short value in an arbitrary base * @str: the string containing the number * @valp: where to put the result * * returns the number of bytes consumed, or negative value on error */ int ipath_parse_ushort(const char *str, unsigned short *valp) { unsigned long val; char *end; int ret; if (!isdigit(str[0])) { ret = -EINVAL; goto bail; } val = simple_strtoul(str, &end, 0); if (val > 0xffff) { ret = -EINVAL; goto bail; } *valp = val; ret = end + 1 - str; if (ret == 0) ret = -EINVAL; bail: return ret; } static ssize_t show_version(struct device_driver *dev, char *buf) { /* The string printed here is already newline-terminated. */ return scnprintf(buf, PAGE_SIZE, "%s", ib_ipath_version); } static ssize_t show_num_units(struct device_driver *dev, char *buf) { return scnprintf(buf, PAGE_SIZE, "%d\n", ipath_count_units(NULL, NULL, NULL)); } static ssize_t show_status(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); ssize_t ret; if (!dd->ipath_statusp) { ret = -EINVAL; goto bail; } ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n", (unsigned long long) *(dd->ipath_statusp)); bail: return ret; } static const char *ipath_status_str[] = { "Initted", "Disabled", "Admin_Disabled", "", /* This used to be the old "OIB_SMA" status. */ "", /* This used to be the old "SMA" status. */ "Present", "IB_link_up", "IB_configured", "NoIBcable", "Fatal_Hardware_Error", NULL, }; static ssize_t show_status_str(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int i, any; u64 s; ssize_t ret; if (!dd->ipath_statusp) { ret = -EINVAL; goto bail; } s = *(dd->ipath_statusp); *buf = '\0'; for (any = i = 0; s && ipath_status_str[i]; i++) { if (s & 1) { if (any && strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) /* overflow */ break; if (strlcat(buf, ipath_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 ssize_t show_boardversion(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); /* The string printed here is already newline-terminated. */ return scnprintf(buf, PAGE_SIZE, "%s", dd->ipath_boardversion); } static ssize_t show_localbus_info(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); /* The string printed here is already newline-terminated. */ return scnprintf(buf, PAGE_SIZE, "%s", dd->ipath_lbus_info); } static ssize_t show_lmc(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_lmc); } static ssize_t store_lmc(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); u16 lmc = 0; int ret; ret = ipath_parse_ushort(buf, &lmc); if (ret < 0) goto invalid; if (lmc > 7) { ret = -EINVAL; goto invalid; } ipath_set_lid(dd, dd->ipath_lid, lmc); goto bail; invalid: ipath_dev_err(dd, "attempt to set invalid LMC %u\n", lmc); bail: return ret; } static ssize_t show_lid(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_lid); } static ssize_t store_lid(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); u16 lid = 0; int ret; ret = ipath_parse_ushort(buf, &lid); if (ret < 0) goto invalid; if (lid == 0 || lid >= IPATH_MULTICAST_LID_BASE) { ret = -EINVAL; goto invalid; } ipath_set_lid(dd, lid, dd->ipath_lmc); goto bail; invalid: ipath_dev_err(dd, "attempt to set invalid LID 0x%x\n", lid); bail: return ret; } static ssize_t show_mlid(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_mlid); } static ssize_t store_mlid(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); u16 mlid; int ret; ret = ipath_parse_ushort(buf, &mlid); if (ret < 0 || mlid < IPATH_MULTICAST_LID_BASE) goto invalid; dd->ipath_mlid = mlid; goto bail; invalid: ipath_dev_err(dd, "attempt to set invalid MLID\n"); bail: return ret; } static ssize_t show_guid(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); u8 *guid; guid = (u8 *) & (dd->ipath_guid); return scnprintf(buf, PAGE_SIZE, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", guid[0], guid[1], guid[2], guid[3], guid[4], guid[5], guid[6], guid[7]); } static ssize_t store_guid(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); ssize_t ret; unsigned short guid[8]; __be64 new_guid; u8 *ng; int i; if (sscanf(buf, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx", &guid[0], &guid[1], &guid[2], &guid[3], &guid[4], &guid[5], &guid[6], &guid[7]) != 8) goto invalid; ng = (u8 *) &new_guid; for (i = 0; i < 8; i++) { if (guid[i] > 0xff) goto invalid; ng[i] = guid[i]; } if (new_guid == 0) goto invalid; dd->ipath_guid = new_guid; dd->ipath_nguid = 1; if (dd->verbs_dev) dd->verbs_dev->ibdev.node_guid = new_guid; ret = strlen(buf); goto bail; invalid: ipath_dev_err(dd, "attempt to set invalid GUID\n"); ret = -EINVAL; bail: return ret; } static ssize_t show_nguid(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_nguid); } static ssize_t show_nports(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); /* Return the number of user ports available. */ return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_cfgports - 1); } static ssize_t show_serial(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); buf[sizeof dd->ipath_serial] = '\0'; memcpy(buf, dd->ipath_serial, sizeof dd->ipath_serial); strcat(buf, "\n"); return strlen(buf); } static ssize_t show_unit(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_unit); } static ssize_t show_jint_max_packets(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); return scnprintf(buf, PAGE_SIZE, "%hu\n", dd->ipath_jint_max_packets); } static ssize_t store_jint_max_packets(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); u16 v = 0; int ret; ret = ipath_parse_ushort(buf, &v); if (ret < 0) ipath_dev_err(dd, "invalid jint_max_packets.\n"); else dd->ipath_f_config_jint(dd, dd->ipath_jint_idle_ticks, v); return ret; } static ssize_t show_jint_idle_ticks(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); return scnprintf(buf, PAGE_SIZE, "%hu\n", dd->ipath_jint_idle_ticks); } static ssize_t store_jint_idle_ticks(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); u16 v = 0; int ret; ret = ipath_parse_ushort(buf, &v); if (ret < 0) ipath_dev_err(dd, "invalid jint_idle_ticks.\n"); else dd->ipath_f_config_jint(dd, v, dd->ipath_jint_max_packets); return ret; } #define DEVICE_COUNTER(name, attr) \ static ssize_t show_counter_##name(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ struct ipath_devdata *dd = dev_get_drvdata(dev); \ return scnprintf(\ buf, PAGE_SIZE, "%llu\n", (unsigned long long) \ ipath_snap_cntr( \ dd, offsetof(struct infinipath_counters, \ attr) / sizeof(u64))); \ } \ static DEVICE_ATTR(name, S_IRUGO, show_counter_##name, NULL); DEVICE_COUNTER(ib_link_downeds, IBLinkDownedCnt); DEVICE_COUNTER(ib_link_err_recoveries, IBLinkErrRecoveryCnt); DEVICE_COUNTER(ib_status_changes, IBStatusChangeCnt); DEVICE_COUNTER(ib_symbol_errs, IBSymbolErrCnt); DEVICE_COUNTER(lb_flow_stalls, LBFlowStallCnt); DEVICE_COUNTER(lb_ints, LBIntCnt); DEVICE_COUNTER(rx_bad_formats, RxBadFormatCnt); DEVICE_COUNTER(rx_buf_ovfls, RxBufOvflCnt); DEVICE_COUNTER(rx_data_pkts, RxDataPktCnt); DEVICE_COUNTER(rx_dropped_pkts, RxDroppedPktCnt); DEVICE_COUNTER(rx_dwords, RxDwordCnt); DEVICE_COUNTER(rx_ebps, RxEBPCnt); DEVICE_COUNTER(rx_flow_ctrl_errs, RxFlowCtrlErrCnt); DEVICE_COUNTER(rx_flow_pkts, RxFlowPktCnt); DEVICE_COUNTER(rx_icrc_errs, RxICRCErrCnt); DEVICE_COUNTER(rx_len_errs, RxLenErrCnt); DEVICE_COUNTER(rx_link_problems, RxLinkProblemCnt); DEVICE_COUNTER(rx_lpcrc_errs, RxLPCRCErrCnt); DEVICE_COUNTER(rx_max_min_len_errs, RxMaxMinLenErrCnt); DEVICE_COUNTER(rx_p0_hdr_egr_ovfls, RxP0HdrEgrOvflCnt); DEVICE_COUNTER(rx_p1_hdr_egr_ovfls, RxP1HdrEgrOvflCnt); DEVICE_COUNTER(rx_p2_hdr_egr_ovfls, RxP2HdrEgrOvflCnt); DEVICE_COUNTER(rx_p3_hdr_egr_ovfls, RxP3HdrEgrOvflCnt); DEVICE_COUNTER(rx_p4_hdr_egr_ovfls, RxP4HdrEgrOvflCnt); DEVICE_COUNTER(rx_p5_hdr_egr_ovfls, RxP5HdrEgrOvflCnt); DEVICE_COUNTER(rx_p6_hdr_egr_ovfls, RxP6HdrEgrOvflCnt); DEVICE_COUNTER(rx_p7_hdr_egr_ovfls, RxP7HdrEgrOvflCnt); DEVICE_COUNTER(rx_p8_hdr_egr_ovfls, RxP8HdrEgrOvflCnt); DEVICE_COUNTER(rx_pkey_mismatches, RxPKeyMismatchCnt); DEVICE_COUNTER(rx_tid_full_errs, RxTIDFullErrCnt); DEVICE_COUNTER(rx_tid_valid_errs, RxTIDValidErrCnt); DEVICE_COUNTER(rx_vcrc_errs, RxVCRCErrCnt); DEVICE_COUNTER(tx_data_pkts, TxDataPktCnt); DEVICE_COUNTER(tx_dropped_pkts, TxDroppedPktCnt); DEVICE_COUNTER(tx_dwords, TxDwordCnt); DEVICE_COUNTER(tx_flow_pkts, TxFlowPktCnt); DEVICE_COUNTER(tx_flow_stalls, TxFlowStallCnt); DEVICE_COUNTER(tx_len_errs, TxLenErrCnt); DEVICE_COUNTER(tx_max_min_len_errs, TxMaxMinLenErrCnt); DEVICE_COUNTER(tx_underruns, TxUnderrunCnt); DEVICE_COUNTER(tx_unsup_vl_errs, TxUnsupVLErrCnt); static struct attribute *dev_counter_attributes[] = { &dev_attr_ib_link_downeds.attr, &dev_attr_ib_link_err_recoveries.attr, &dev_attr_ib_status_changes.attr, &dev_attr_ib_symbol_errs.attr, &dev_attr_lb_flow_stalls.attr, &dev_attr_lb_ints.attr, &dev_attr_rx_bad_formats.attr, &dev_attr_rx_buf_ovfls.attr, &dev_attr_rx_data_pkts.attr, &dev_attr_rx_dropped_pkts.attr, &dev_attr_rx_dwords.attr, &dev_attr_rx_ebps.attr, &dev_attr_rx_flow_ctrl_errs.attr, &dev_attr_rx_flow_pkts.attr, &dev_attr_rx_icrc_errs.attr, &dev_attr_rx_len_errs.attr, &dev_attr_rx_link_problems.attr, &dev_attr_rx_lpcrc_errs.attr, &dev_attr_rx_max_min_len_errs.attr, &dev_attr_rx_p0_hdr_egr_ovfls.attr, &dev_attr_rx_p1_hdr_egr_ovfls.attr, &dev_attr_rx_p2_hdr_egr_ovfls.attr, &dev_attr_rx_p3_hdr_egr_ovfls.attr, &dev_attr_rx_p4_hdr_egr_ovfls.attr, &dev_attr_rx_p5_hdr_egr_ovfls.attr, &dev_attr_rx_p6_hdr_egr_ovfls.attr, &dev_attr_rx_p7_hdr_egr_ovfls.attr, &dev_attr_rx_p8_hdr_egr_ovfls.attr, &dev_attr_rx_pkey_mismatches.attr, &dev_attr_rx_tid_full_errs.attr, &dev_attr_rx_tid_valid_errs.attr, &dev_attr_rx_vcrc_errs.attr, &dev_attr_tx_data_pkts.attr, &dev_attr_tx_dropped_pkts.attr, &dev_attr_tx_dwords.attr, &dev_attr_tx_flow_pkts.attr, &dev_attr_tx_flow_stalls.attr, &dev_attr_tx_len_errs.attr, &dev_attr_tx_max_min_len_errs.attr, &dev_attr_tx_underruns.attr, &dev_attr_tx_unsup_vl_errs.attr, NULL }; static struct attribute_group dev_counter_attr_group = { .name = "counters", .attrs = dev_counter_attributes }; static ssize_t store_reset(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; if (count < 5 || memcmp(buf, "reset", 5)) { ret = -EINVAL; goto bail; } if (dd->ipath_flags & IPATH_DISABLED) { /* * post-reset init would re-enable interrupts, etc. * so don't allow reset on disabled devices. Not * perfect error, but about the best choice. */ dev_info(dev,"Unit %d is disabled, can't reset\n", dd->ipath_unit); ret = -EINVAL; } ret = ipath_reset_device(dd->ipath_unit); bail: return ret<0 ? ret : count; } static ssize_t store_link_state(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret, r; u16 state; ret = ipath_parse_ushort(buf, &state); if (ret < 0) goto invalid; r = ipath_set_linkstate(dd, state); if (r < 0) { ret = r; goto bail; } goto bail; invalid: ipath_dev_err(dd, "attempt to set invalid link state\n"); bail: return ret; } static ssize_t show_mtu(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_ibmtu); } static ssize_t store_mtu(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); ssize_t ret; u16 mtu = 0; int r; ret = ipath_parse_ushort(buf, &mtu); if (ret < 0) goto invalid; r = ipath_set_mtu(dd, mtu); if (r < 0) ret = r; goto bail; invalid: ipath_dev_err(dd, "attempt to set invalid MTU\n"); bail: return ret; } static ssize_t show_enabled(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); return scnprintf(buf, PAGE_SIZE, "%u\n", (dd->ipath_flags & IPATH_DISABLED) ? 0 : 1); } static ssize_t store_enabled(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); ssize_t ret; u16 enable = 0; ret = ipath_parse_ushort(buf, &enable); if (ret < 0) { ipath_dev_err(dd, "attempt to use non-numeric on enable\n"); goto bail; } if (enable) { if (!(dd->ipath_flags & IPATH_DISABLED)) goto bail; dev_info(dev, "Enabling unit %d\n", dd->ipath_unit); /* same as post-reset */ ret = ipath_init_chip(dd, 1); if (ret) ipath_dev_err(dd, "Failed to enable unit %d\n", dd->ipath_unit); else { dd->ipath_flags &= ~IPATH_DISABLED; *dd->ipath_statusp &= ~IPATH_STATUS_ADMIN_DISABLED; } } else if (!(dd->ipath_flags & IPATH_DISABLED)) { dev_info(dev, "Disabling unit %d\n", dd->ipath_unit); ipath_shutdown_device(dd); dd->ipath_flags |= IPATH_DISABLED; *dd->ipath_statusp |= IPATH_STATUS_ADMIN_DISABLED; } bail: return ret; } static ssize_t store_rx_pol_inv(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret, r; u16 val; ret = ipath_parse_ushort(buf, &val); if (ret < 0) goto invalid; r = ipath_set_rx_pol_inv(dd, val); if (r < 0) { ret = r; goto bail; } goto bail; invalid: ipath_dev_err(dd, "attempt to set invalid Rx Polarity invert\n"); bail: return ret; } static ssize_t store_led_override(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; u16 val; ret = ipath_parse_ushort(buf, &val); if (ret > 0) ipath_set_led_override(dd, val); else ipath_dev_err(dd, "attempt to set invalid LED override\n"); return ret; } static ssize_t show_logged_errs(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int idx, count; /* force consistency with actual EEPROM */ if (ipath_update_eeprom_log(dd) != 0) return -ENXIO; count = 0; for (idx = 0; idx < IPATH_EEP_LOG_CNT; ++idx) { count += scnprintf(buf + count, PAGE_SIZE - count, "%d%c", dd->ipath_eep_st_errs[idx], idx == (IPATH_EEP_LOG_CNT - 1) ? '\n' : ' '); } return count; } /* * New sysfs entries to control various IB config. These all turn into * accesses via ipath_f_get/set_ib_cfg. * * Get/Set heartbeat enable. Or of 1=enabled, 2=auto */ static ssize_t show_hrtbt_enb(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_HRTBT); if (ret >= 0) ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret); return ret; } static ssize_t store_hrtbt_enb(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret, r; u16 val; ret = ipath_parse_ushort(buf, &val); if (ret >= 0 && val > 3) ret = -EINVAL; if (ret < 0) { ipath_dev_err(dd, "attempt to set invalid Heartbeat enable\n"); goto bail; } /* * 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. */ r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_HRTBT, val); if (r < 0) ret = r; else if (val == IPATH_IB_HRTBT_OFF) dd->ipath_flags |= IPATH_NO_HRTBT; else dd->ipath_flags &= ~IPATH_NO_HRTBT; bail: return ret; } /* * Get/Set Link-widths enabled. Or of 1=1x, 2=4x (this is human/IB centric, * _not_ the particular encoding of any given chip) */ static ssize_t show_lwid_enb(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_LWID_ENB); if (ret >= 0) ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret); return ret; } static ssize_t store_lwid_enb(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret, r; u16 val; ret = ipath_parse_ushort(buf, &val); if (ret >= 0 && (val == 0 || val > 3)) ret = -EINVAL; if (ret < 0) { ipath_dev_err(dd, "attempt to set invalid Link Width (enable)\n"); goto bail; } r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_LWID_ENB, val); if (r < 0) ret = r; bail: return ret; } /* Get current link width */ static ssize_t show_lwid(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_LWID); if (ret >= 0) ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret); return ret; } /* * Get/Set Link-speeds enabled. Or of 1=SDR 2=DDR. */ static ssize_t show_spd_enb(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_SPD_ENB); if (ret >= 0) ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret); return ret; } static ssize_t store_spd_enb(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret, r; u16 val; ret = ipath_parse_ushort(buf, &val); if (ret >= 0 && (val == 0 || val > (IPATH_IB_SDR | IPATH_IB_DDR))) ret = -EINVAL; if (ret < 0) { ipath_dev_err(dd, "attempt to set invalid Link Speed (enable)\n"); goto bail; } r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_SPD_ENB, val); if (r < 0) ret = r; bail: return ret; } /* Get current link speed */ static ssize_t show_spd(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_SPD); if (ret >= 0) ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret); return ret; } /* * Get/Set RX polarity-invert enable. 0=no, 1=yes. */ static ssize_t show_rx_polinv_enb(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_RXPOL_ENB); if (ret >= 0) ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret); return ret; } static ssize_t store_rx_polinv_enb(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret, r; u16 val; ret = ipath_parse_ushort(buf, &val); if (ret >= 0 && val > 1) { ipath_dev_err(dd, "attempt to set invalid Rx Polarity (enable)\n"); ret = -EINVAL; goto bail; } r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_RXPOL_ENB, val); if (r < 0) ret = r; bail: return ret; } /* * Get/Set RX lane-reversal enable. 0=no, 1=yes. */ static ssize_t show_lanerev_enb(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_LREV_ENB); if (ret >= 0) ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret); return ret; } static ssize_t store_lanerev_enb(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret, r; u16 val; ret = ipath_parse_ushort(buf, &val); if (ret >= 0 && val > 1) { ret = -EINVAL; ipath_dev_err(dd, "attempt to set invalid Lane reversal (enable)\n"); goto bail; } r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_LREV_ENB, val); if (r < 0) ret = r; bail: return ret; } static DRIVER_ATTR(num_units, S_IRUGO, show_num_units, NULL); static DRIVER_ATTR(version, S_IRUGO, show_version, NULL); static struct attribute *driver_attributes[] = { &driver_attr_num_units.attr, &driver_attr_version.attr, NULL }; static struct attribute_group driver_attr_group = { .attrs = driver_attributes }; static ssize_t store_tempsense(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret, stat; u16 val; ret = ipath_parse_ushort(buf, &val); if (ret <= 0) { ipath_dev_err(dd, "attempt to set invalid tempsense config\n"); goto bail; } /* If anything but the highest limit, enable T_CRIT_A "interrupt" */ stat = ipath_tempsense_write(dd, 9, (val == 0x7f7f) ? 0x80 : 0); if (stat) { ipath_dev_err(dd, "Unable to set tempsense config\n"); ret = -1; goto bail; } stat = ipath_tempsense_write(dd, 0xB, (u8) (val & 0xFF)); if (stat) { ipath_dev_err(dd, "Unable to set local Tcrit\n"); ret = -1; goto bail; } stat = ipath_tempsense_write(dd, 0xD, (u8) (val >> 8)); if (stat) { ipath_dev_err(dd, "Unable to set remote Tcrit\n"); ret = -1; goto bail; } bail: return ret; } /* * dump tempsense regs. in decimal, to ease shell-scripts. */ static ssize_t show_tempsense(struct device *dev, struct device_attribute *attr, char *buf) { struct ipath_devdata *dd = dev_get_drvdata(dev); int ret; int idx; u8 regvals[8]; ret = -ENXIO; for (idx = 0; idx < 8; ++idx) { if (idx == 6) continue; ret = ipath_tempsense_read(dd, idx); if (ret < 0) break; regvals[idx] = ret; } if (idx == 8) ret = scnprintf(buf, PAGE_SIZE, "%d %d %02X %02X %d %d\n", *(signed char *)(regvals), *(signed char *)(regvals + 1), regvals[2], regvals[3], *(signed char *)(regvals + 5), *(signed char *)(regvals + 7)); return ret; } struct attribute_group *ipath_driver_attr_groups[] = { &driver_attr_group, NULL, }; static DEVICE_ATTR(guid, S_IWUSR | S_IRUGO, show_guid, store_guid); static DEVICE_ATTR(lmc, S_IWUSR | S_IRUGO, show_lmc, store_lmc); static DEVICE_ATTR(lid, S_IWUSR | S_IRUGO, show_lid, store_lid); static DEVICE_ATTR(link_state, S_IWUSR, NULL, store_link_state); static DEVICE_ATTR(mlid, S_IWUSR | S_IRUGO, show_mlid, store_mlid); static DEVICE_ATTR(mtu, S_IWUSR | S_IRUGO, show_mtu, store_mtu); static DEVICE_ATTR(enabled, S_IWUSR | S_IRUGO, show_enabled, store_enabled); static DEVICE_ATTR(nguid, S_IRUGO, show_nguid, NULL); static DEVICE_ATTR(nports, S_IRUGO, show_nports, NULL); static DEVICE_ATTR(reset, S_IWUSR, NULL, store_reset); static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL); static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); static DEVICE_ATTR(status_str, S_IRUGO, show_status_str, NULL); static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL); static DEVICE_ATTR(unit, S_IRUGO, show_unit, NULL); static DEVICE_ATTR(rx_pol_inv, S_IWUSR, NULL, store_rx_pol_inv); static DEVICE_ATTR(led_override, S_IWUSR, NULL, store_led_override); static DEVICE_ATTR(logged_errors, S_IRUGO, show_logged_errs, NULL); static DEVICE_ATTR(localbus_info, S_IRUGO, show_localbus_info, NULL); static DEVICE_ATTR(jint_max_packets, S_IWUSR | S_IRUGO, show_jint_max_packets, store_jint_max_packets); static DEVICE_ATTR(jint_idle_ticks, S_IWUSR | S_IRUGO, show_jint_idle_ticks, store_jint_idle_ticks); static DEVICE_ATTR(tempsense, S_IWUSR | S_IRUGO, show_tempsense, store_tempsense); static struct attribute *dev_attributes[] = { &dev_attr_guid.attr, &dev_attr_lmc.attr, &dev_attr_lid.attr, &dev_attr_link_state.attr, &dev_attr_mlid.attr, &dev_attr_mtu.attr, &dev_attr_nguid.attr, &dev_attr_nports.attr, &dev_attr_serial.attr, &dev_attr_status.attr, &dev_attr_status_str.attr, &dev_attr_boardversion.attr, &dev_attr_unit.attr, &dev_attr_enabled.attr, &dev_attr_rx_pol_inv.attr, &dev_attr_led_override.attr, &dev_attr_logged_errors.attr, &dev_attr_tempsense.attr, &dev_attr_localbus_info.attr, NULL }; static struct attribute_group dev_attr_group = { .attrs = dev_attributes }; static DEVICE_ATTR(hrtbt_enable, S_IWUSR | S_IRUGO, show_hrtbt_enb, store_hrtbt_enb); static DEVICE_ATTR(link_width_enable, S_IWUSR | S_IRUGO, show_lwid_enb, store_lwid_enb); static DEVICE_ATTR(link_width, S_IRUGO, show_lwid, NULL); static DEVICE_ATTR(link_speed_enable, S_IWUSR | S_IRUGO, show_spd_enb, store_spd_enb); static DEVICE_ATTR(link_speed, S_IRUGO, show_spd, NULL); static DEVICE_ATTR(rx_pol_inv_enable, S_IWUSR | S_IRUGO, show_rx_polinv_enb, store_rx_polinv_enb); static DEVICE_ATTR(rx_lane_rev_enable, S_IWUSR | S_IRUGO, show_lanerev_enb, store_lanerev_enb); static struct attribute *dev_ibcfg_attributes[] = { &dev_attr_hrtbt_enable.attr, &dev_attr_link_width_enable.attr, &dev_attr_link_width.attr, &dev_attr_link_speed_enable.attr, &dev_attr_link_speed.attr, &dev_attr_rx_pol_inv_enable.attr, &dev_attr_rx_lane_rev_enable.attr, NULL }; static struct attribute_group dev_ibcfg_attr_group = { .attrs = dev_ibcfg_attributes }; /** * ipath_expose_reset - create a device reset file * @dev: the device structure * * Only expose a file that lets us reset the device after someone * enters diag mode. A device reset is quite likely to crash the * machine entirely, so we don't want to normally make it * available. * * Called with ipath_mutex held. */ int ipath_expose_reset(struct device *dev) { static int exposed; int ret; if (!exposed) { ret = device_create_file(dev, &dev_attr_reset); exposed = 1; } else ret = 0; return ret; } int ipath_device_create_group(struct device *dev, struct ipath_devdata *dd) { int ret; ret = sysfs_create_group(&dev->kobj, &dev_attr_group); if (ret) goto bail; ret = sysfs_create_group(&dev->kobj, &dev_counter_attr_group); if (ret) goto bail_attrs; if (dd->ipath_flags & IPATH_HAS_MULT_IB_SPEED) { ret = device_create_file(dev, &dev_attr_jint_idle_ticks); if (ret) goto bail_counter; ret = device_create_file(dev, &dev_attr_jint_max_packets); if (ret) goto bail_idle; ret = sysfs_create_group(&dev->kobj, &dev_ibcfg_attr_group); if (ret) goto bail_max; } return 0; bail_max: device_remove_file(dev, &dev_attr_jint_max_packets); bail_idle: device_remove_file(dev, &dev_attr_jint_idle_ticks); bail_counter: sysfs_remove_group(&dev->kobj, &dev_counter_attr_group); bail_attrs: sysfs_remove_group(&dev->kobj, &dev_attr_group); bail: return ret; } void ipath_device_remove_group(struct device *dev, struct ipath_devdata *dd) { sysfs_remove_group(&dev->kobj, &dev_counter_attr_group); if (dd->ipath_flags & IPATH_HAS_MULT_IB_SPEED) { sysfs_remove_group(&dev->kobj, &dev_ibcfg_attr_group); device_remove_file(dev, &dev_attr_jint_idle_ticks); device_remove_file(dev, &dev_attr_jint_max_packets); } sysfs_remove_group(&dev->kobj, &dev_attr_group); device_remove_file(dev, &dev_attr_reset); }