creates the qib_sysfs.c file.

Signed-off-by: Ralph Campbell <ralph.campb...@qlogic.com>
---

 drivers/infiniband/hw/qib/qib_sysfs.c |  736 +++++++++++++++++++++++++++++++++
 1 files changed, 736 insertions(+), 0 deletions(-)
 create mode 100644 drivers/infiniband/hw/qib/qib_sysfs.c

diff --git a/drivers/infiniband/hw/qib/qib_sysfs.c 
b/drivers/infiniband/hw/qib/qib_sysfs.c
new file mode 100644
index 0000000..747005a
--- /dev/null
+++ b/drivers/infiniband/hw/qib/qib_sysfs.c
@@ -0,0 +1,736 @@
+/*
+ * Copyright (c) 2006, 2007, 2008, 2009 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 "qib.h"
+
+/**
+ * qib_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.
+ */
+static int qib_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;
+}
+
+/* start of per-port functions */
+/*
+ * Get/Set heartbeat enable. OR of 1=enabled, 2=auto
+ */
+static ssize_t show_hrtbt_enb(struct qib_pportdata *ppd, char *buf)
+{
+       struct qib_devdata *dd = ppd->dd;
+       int ret;
+
+       ret = dd->f_get_ib_cfg(ppd, QIB_IB_CFG_HRTBT);
+       ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
+       return ret;
+}
+
+static ssize_t store_hrtbt_enb(struct qib_pportdata *ppd, const char *buf,
+                              size_t count)
+{
+       struct qib_devdata *dd = ppd->dd;
+       int ret;
+       u16 val;
+
+       ret = qib_parse_ushort(buf, &val);
+
+       /*
+        * 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.
+        */
+       if (ret >= 0)
+               ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val);
+       if (ret < 0)
+               qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n");
+       return ret < 0 ? ret : count;
+}
+
+static ssize_t store_loopback(struct qib_pportdata *ppd, const char *buf,
+                             size_t count)
+{
+       struct qib_devdata *dd = ppd->dd;
+       int ret = count, r;
+
+       r = dd->f_set_ib_loopback(ppd, buf);
+       if (r < 0)
+               ret = r;
+
+       return ret;
+}
+
+static ssize_t store_led_override(struct qib_pportdata *ppd, const char *buf,
+                                 size_t count)
+{
+       struct qib_devdata *dd = ppd->dd;
+       int ret;
+       u16 val;
+
+       ret = qib_parse_ushort(buf, &val);
+       if (ret > 0)
+               qib_set_led_override(ppd, val);
+       else
+               qib_dev_err(dd, "attempt to set invalid LED override\n");
+       return ret < 0 ? ret : count;
+}
+
+static ssize_t show_qsfp(struct qib_pportdata *ppd, char *buf)
+{
+       ssize_t ret;
+
+       ret = qib_qsfp_dump(ppd, buf, PAGE_SIZE);
+       return ret;
+}
+
+static ssize_t show_status(struct qib_pportdata *ppd, char *buf)
+{
+       ssize_t ret;
+
+       if (!ppd->statusp)
+               ret = -EINVAL;
+       else
+               ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n",
+                               (unsigned long long) *(ppd->statusp));
+       return ret;
+}
+
+/*
+ * For userland compatibility, these offsets must remain fixed.
+ * They are strings for QIB_STATUS_*
+ */
+static const char *qib_status_str[] = {
+       "Initted",
+       "",
+       "",
+       "",
+       "",
+       "Present",
+       "IB_link_up",
+       "IB_configured",
+       "",
+       "Fatal_Hardware_Error",
+       NULL,
+};
+
+static ssize_t show_status_str(struct qib_pportdata *ppd, char *buf)
+{
+       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;
+}
+
+/* end of per-port functions */
+
+/*
+ * Start of per-port file structures and support code
+ * Because we are fitting into other infrastructure, we have to supply the
+ * full set of kobject/sysfs_ops structures and routines.
+ */
+#define QIB_PORT_ATTR(name, mode, show, store) \
+       static struct qib_port_attr qib_port_attr_##name = \
+               __ATTR(name, mode, show, store)
+
+struct qib_port_attr {
+       struct attribute attr;
+       ssize_t (*show)(struct qib_pportdata *, char *);
+       ssize_t (*store)(struct qib_pportdata *, const char *, size_t);
+};
+
+QIB_PORT_ATTR(loopback, S_IWUSR, NULL, store_loopback);
+QIB_PORT_ATTR(led_override, S_IWUSR, NULL, store_led_override);
+QIB_PORT_ATTR(hrtbt_enable, S_IWUSR | S_IRUGO, show_hrtbt_enb,
+             store_hrtbt_enb);
+QIB_PORT_ATTR(qsfp, S_IRUGO, show_qsfp, NULL);
+QIB_PORT_ATTR(status, S_IRUGO, show_status, NULL);
+QIB_PORT_ATTR(status_str, S_IRUGO, show_status_str, NULL);
+
+static struct attribute *port_default_attributes[] = {
+       &qib_port_attr_loopback.attr,
+       &qib_port_attr_led_override.attr,
+       &qib_port_attr_hrtbt_enable.attr,
+       &qib_port_attr_status.attr,
+       &qib_port_attr_status_str.attr,
+       NULL
+};
+
+static ssize_t qib_portattr_show(struct kobject *kobj,
+       struct attribute *attr, char *buf)
+{
+       struct qib_port_attr *pattr =
+               container_of(attr, struct qib_port_attr, attr);
+       struct qib_pportdata *ppd =
+               container_of(kobj, struct qib_pportdata, pport_kobj);
+
+       return pattr->show(ppd, buf);
+}
+
+static ssize_t qib_portattr_store(struct kobject *kobj,
+       struct attribute *attr, const char *buf, size_t len)
+{
+       struct qib_port_attr *pattr =
+               container_of(attr, struct qib_port_attr, attr);
+       struct qib_pportdata *ppd =
+               container_of(kobj, struct qib_pportdata, pport_kobj);
+
+       return pattr->store(ppd, buf, len);
+}
+
+static void qib_port_release(struct kobject *kobj)
+{
+       /* nothing to do since memory is freed by qib_free_devdata() */
+}
+
+static struct sysfs_ops qib_port_ops = {
+       .show = qib_portattr_show,
+       .store = qib_portattr_store,
+};
+
+static struct kobj_type qib_port_ktype = {
+       .release = qib_port_release,
+       .sysfs_ops = &qib_port_ops,
+       .default_attrs = port_default_attributes
+};
+
+/* Start sl2vl */
+
+#define QIB_SL2VL_ATTR(N) \
+       static struct qib_sl2vl_attr qib_sl2vl_attr_##N = { \
+               .attr = { .name = __stringify(N), .mode = 0444 }, \
+               .sl = N \
+       }
+
+struct qib_sl2vl_attr {
+       struct attribute attr;
+       int sl;
+};
+
+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 *sl2vl_default_attributes[] = {
+       &qib_sl2vl_attr_0.attr,
+       &qib_sl2vl_attr_1.attr,
+       &qib_sl2vl_attr_2.attr,
+       &qib_sl2vl_attr_3.attr,
+       &qib_sl2vl_attr_4.attr,
+       &qib_sl2vl_attr_5.attr,
+       &qib_sl2vl_attr_6.attr,
+       &qib_sl2vl_attr_7.attr,
+       &qib_sl2vl_attr_8.attr,
+       &qib_sl2vl_attr_9.attr,
+       &qib_sl2vl_attr_10.attr,
+       &qib_sl2vl_attr_11.attr,
+       &qib_sl2vl_attr_12.attr,
+       &qib_sl2vl_attr_13.attr,
+       &qib_sl2vl_attr_14.attr,
+       &qib_sl2vl_attr_15.attr,
+       NULL
+};
+
+static ssize_t sl2vl_attr_show(struct kobject *kobj, struct attribute *attr,
+                              char *buf)
+{
+       struct qib_sl2vl_attr *sattr =
+               container_of(attr, struct qib_sl2vl_attr, attr);
+       struct qib_pportdata *ppd =
+               container_of(kobj, struct qib_pportdata, sl2vl_kobj);
+       struct qib_ibport *qibp = &ppd->ibport_data;
+
+       return sprintf(buf, "%u\n", qibp->sl_to_vl[sattr->sl]);
+}
+
+static struct sysfs_ops qib_sl2vl_ops = {
+       .show = sl2vl_attr_show,
+};
+
+static struct kobj_type qib_sl2vl_ktype = {
+       .release = qib_port_release,
+       .sysfs_ops = &qib_sl2vl_ops,
+       .default_attrs = sl2vl_default_attributes
+};
+
+/* End sl2vl */
+
+/* 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 show_rev(struct device *device, struct device_attribute *attr,
+                       char *buf)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+
+       return sprintf(buf, "%x\n", dd_from_dev(dev)->minrev);
+}
+
+static ssize_t show_hca(struct device *device, struct device_attribute *attr,
+                       char *buf)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+       struct qib_devdata *dd = dd_from_dev(dev);
+       int ret;
+
+       if (!dd->boardname)
+               ret = -EINVAL;
+       else
+               ret = scnprintf(buf, PAGE_SIZE, "%s\n", dd->boardname);
+       return ret;
+}
+
+static const char *qp_type_str[] = {
+       "SMI", "GSI", "RC", "UC", "UD",
+};
+
+static ssize_t show_stats(struct device *device, struct device_attribute *attr,
+                         char *buf)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+       struct qib_devdata *dd = dd_from_dev(dev);
+       unsigned pidx;
+       unsigned i;
+       int len = 0;
+       unsigned long flags;
+
+       for (pidx = 0; pidx < dd->num_pports; ++pidx) {
+               struct qib_ibport *ibp = &dd->pport[pidx].ibport_data;
+
+               len += sprintf(buf + len,
+                              "Port %d:\n"
+                              "RC timeouts %d\n"
+                              "RC resends  %d\n"
+                              "RC QACKs    %d\n"
+                              "RC SEQ NAKs %d\n"
+                              "RC RDMA seq %d\n"
+                              "RC RNR NAKs %d\n"
+                              "RC OTH NAKs %d\n"
+                              "RC DComp    %d\n"
+                              "RCr dup req %d\n"
+                              "RCr SEQ NAK %d\n"
+                              "wait piobuf %d\n"
+                              "wait DMA    %d\n"
+                              "wait TX     %d\n"
+                              "unaligned   %d\n"
+                              "loop pkts   %d\n"
+                              "PKT drops   %d\n",
+                              dd->pport[pidx].port,
+                              ibp->n_timeouts, ibp->n_rc_resends,
+                              ibp->n_rc_qacks, ibp->n_seq_naks,
+                              ibp->n_rdma_seq, ibp->n_rnr_naks,
+                              ibp->n_other_naks, ibp->n_rc_delayed_comp,
+                              ibp->n_rc_dupreq, ibp->n_rc_seqnak,
+                              dev->n_piowait, ibp->n_dmawait, dev->n_txwait,
+                              ibp->n_unaligned, ibp->n_loop_pkts,
+                              ibp->n_pkt_drops);
+               for (i = 0; i < ARRAY_SIZE(ibp->opstats); i++) {
+                       const struct qib_opcode_stats *si = &ibp->opstats[i];
+
+                       if (!si->n_packets && !si->n_bytes)
+                               continue;
+                       len += sprintf(buf + len, "%02x %llu/%llu\n", i,
+                                      (unsigned long long) si->n_packets,
+                                      (unsigned long long) si->n_bytes);
+               }
+       }
+       len += sprintf(buf + len, "Ctx:npkts");
+       for (i = 0; i < dd->first_user_ctxt; i++) {
+               if (!dd->rcd[i])
+                       continue;
+               len += sprintf(buf + len, " %u:%u", i,
+                              dd->rcd[i]->pkt_count);
+       }
+       len += sprintf(buf + len, "\n");
+       spin_lock_irqsave(&dev->qpt_lock, flags);
+       for (i = 0; i < dev->qp_table_size; i++) {
+               struct qib_qp *qp;
+               for (qp = dev->qp_table[i]; qp != NULL; qp = qp->next) {
+                       struct qib_swqe *wqe;
+
+                       if (qp->s_last == qp->s_acked &&
+                           qp->s_acked == qp->s_cur &&
+                           qp->s_cur == qp->s_tail &&
+                           qp->s_tail == qp->s_head)
+                               continue;
+                       if (len + 128 >= PAGE_SIZE)
+                               break;
+                       wqe = get_swqe_ptr(qp, qp->s_last);
+                       len += sprintf(buf + len,
+                                      "QP%u %s %u %u %u f=%x %u %u %u %u %u "
+                                      "PSN %x %x %x %x %x "
+                                      "(%u %u %u %u %u %u) QP%u LID %x\n",
+                                      qp->ibqp.qp_num,
+                                      qp_type_str[qp->ibqp.qp_type],
+                                      qp->state,
+                                      wqe->wr.opcode,
+                                      qp->s_hdrwords,
+                                      qp->s_flags,
+                                      atomic_read(&qp->s_dma_busy),
+                                      !list_empty(&qp->iowait),
+                                      qp->timeout,
+                                      wqe->ssn,
+                                      qp->s_lsn,
+                                      qp->s_last_psn,
+                                      qp->s_psn, qp->s_next_psn,
+                                      qp->s_sending_psn, qp->s_sending_hpsn,
+                                      qp->s_last, qp->s_acked, qp->s_cur,
+                                      qp->s_tail, qp->s_head, qp->s_size,
+                                      qp->remote_qpn,
+                                      qp->remote_ah_attr.dlid);
+               }
+       }
+       spin_unlock_irqrestore(&dev->qpt_lock, flags);
+       return len;
+}
+
+static ssize_t show_version(struct device *device,
+                           struct device_attribute *attr, char *buf)
+{
+       /* The string printed here is already newline-terminated. */
+       return scnprintf(buf, PAGE_SIZE, "%s", (char *)ib_qib_version);
+}
+
+static ssize_t show_boardversion(struct device *device,
+                                struct device_attribute *attr, char *buf)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+       struct qib_devdata *dd = dd_from_dev(dev);
+
+       /* The string printed here is already newline-terminated. */
+       return scnprintf(buf, PAGE_SIZE, "%s", dd->boardversion);
+}
+
+
+static ssize_t show_localbus_info(struct device *device,
+                                 struct device_attribute *attr, char *buf)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+       struct qib_devdata *dd = dd_from_dev(dev);
+
+       /* The string printed here is already newline-terminated. */
+       return scnprintf(buf, PAGE_SIZE, "%s", dd->lbus_info);
+}
+
+
+static ssize_t show_nctxts(struct device *device,
+                          struct device_attribute *attr, char *buf)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+       struct qib_devdata *dd = dd_from_dev(dev);
+
+       /* Return the number of user ports (contexts) available. */
+       return scnprintf(buf, PAGE_SIZE, "%u\n", dd->cfgctxts -
+               dd->first_user_ctxt);
+}
+
+static ssize_t show_serial(struct device *device,
+                          struct device_attribute *attr, char *buf)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+       struct qib_devdata *dd = dd_from_dev(dev);
+
+       buf[sizeof dd->serial] = '\0';
+       memcpy(buf, dd->serial, sizeof dd->serial);
+       strcat(buf, "\n");
+       return strlen(buf);
+}
+
+static ssize_t store_chip_reset(struct device *device,
+                               struct device_attribute *attr, const char *buf,
+                               size_t count)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+       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 ssize_t show_logged_errs(struct device *device,
+                               struct device_attribute *attr, char *buf)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+       struct qib_devdata *dd = dd_from_dev(dev);
+       int idx, count;
+
+       /* force consistency with actual EEPROM */
+       if (qib_update_eeprom_log(dd) != 0)
+               return -ENXIO;
+
+       count = 0;
+       for (idx = 0; idx < QIB_EEP_LOG_CNT; ++idx) {
+               count += scnprintf(buf + count, PAGE_SIZE - count, "%d%c",
+                                  dd->eep_st_errs[idx],
+                                  idx == (QIB_EEP_LOG_CNT - 1) ? '\n' : ' ');
+       }
+
+       return count;
+}
+
+/*
+ * Dump tempsense regs. in decimal, to ease shell-scripts.
+ */
+static ssize_t show_tempsense(struct device *device,
+                             struct device_attribute *attr, char *buf)
+{
+       struct qib_ibdev *dev =
+               container_of(device, struct qib_ibdev, ibdev.dev);
+       struct qib_devdata *dd = dd_from_dev(dev);
+       int ret;
+       int idx;
+       u8 regvals[8];
+
+       ret = -ENXIO;
+       for (idx = 0; idx < 8; ++idx) {
+               if (idx == 6)
+                       continue;
+               ret = dd->f_tempsense_rd(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;
+}
+
+/*
+ * end of per-unit (or driver, in some cases, but replicated
+ * per unit) functions
+ */
+
+/* start of per-unit file structures and support code */
+static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
+static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
+static DEVICE_ATTR(board_id, S_IRUGO, show_hca, NULL);
+static DEVICE_ATTR(stats, S_IRUGO, show_stats, NULL);
+static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
+static DEVICE_ATTR(nctxts, S_IRUGO, show_nctxts, NULL);
+static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
+static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
+static DEVICE_ATTR(logged_errors, S_IRUGO, show_logged_errs, NULL);
+static DEVICE_ATTR(tempsense, S_IRUGO, show_tempsense, NULL);
+static DEVICE_ATTR(localbus_info, S_IRUGO, show_localbus_info, NULL);
+static DEVICE_ATTR(chip_reset, S_IWUSR, NULL, store_chip_reset);
+
+static struct device_attribute *qib_attributes[] = {
+       &dev_attr_hw_rev,
+       &dev_attr_hca_type,
+       &dev_attr_board_id,
+       &dev_attr_stats,
+       &dev_attr_version,
+       &dev_attr_nctxts,
+       &dev_attr_serial,
+       &dev_attr_boardversion,
+       &dev_attr_logged_errors,
+       &dev_attr_tempsense,
+       &dev_attr_localbus_info,
+       &dev_attr_chip_reset,
+};
+
+static int create_port_files(struct ib_device *ibdev, u8 port_num,
+                            struct kobject *kobj)
+{
+       struct qib_pportdata *ppd;
+       struct qib_devdata *dd = dd_from_ibdev(ibdev);
+       int ret;
+
+       if (!port_num || port_num > dd->num_pports) {
+               qib_dev_err(dd, "Skipping infiniband class with "
+                           "invalid port %u\n", port_num);
+               ret = -ENODEV;
+               goto bail;
+       }
+       ppd = &dd->pport[port_num - 1];
+
+       ret = kobject_init_and_add(&ppd->pport_kobj, &qib_port_ktype, kobj,
+                                  "linkcontrol");
+       if (ret) {
+               qib_dev_err(dd, "Skipping linkcontrol sysfs info, "
+                           "(err %d) port %u\n", ret, port_num);
+               goto bail;
+       }
+
+       if (dd->flags & QIB_HAS_QSFP) {
+               ret = sysfs_create_file(&ppd->pport_kobj,
+                                       &qib_port_attr_qsfp.attr);
+               if (ret) {
+                       qib_dev_err(dd, "Skipping qsfp sysfs info, "
+                                   "(err %d) port %u\n", ret, port_num);
+                       goto bail;
+               }
+       }
+       kobject_uevent(&ppd->pport_kobj, KOBJ_ADD);
+
+       ret = kobject_init_and_add(&ppd->sl2vl_kobj, &qib_sl2vl_ktype, kobj,
+                                  "sl2vl");
+       if (ret) {
+               qib_dev_err(dd, "Skipping sl2vl sysfs info, "
+                           "(err %d) port %u\n", ret, port_num);
+               goto bail_sl;
+       }
+       kobject_uevent(&ppd->sl2vl_kobj, KOBJ_ADD);
+
+       return 0;
+
+bail_sl:
+       kobject_put(&ppd->pport_kobj);
+bail:
+       return ret;
+}
+
+/*
+ * Register and create our files in /sys/class/infiniband.
+ */
+int qib_verbs_register_sysfs(struct qib_devdata *dd)
+{
+       struct ib_device *dev = &dd->verbs_dev.ibdev;
+       int i, ret;
+
+       for (i = 0; i < ARRAY_SIZE(qib_attributes); ++i)
+               if (device_create_file(&dev->dev, qib_attributes[i])) {
+                       ret = 1;
+                       goto bail;
+               }
+
+       ret = ib_sysfs_create_port_files(dev, create_port_files);
+bail:
+       return ret;
+}
+
+/*
+ * Unregister and remove our files in /sys/class/infiniband.
+ */
+void qib_verbs_unregister_sysfs(struct qib_devdata *dd)
+{
+       struct qib_pportdata *ppd;
+       int i;
+
+       for (i = 0; i < dd->num_pports; i++) {
+               ppd = &dd->pport[i];
+               kobject_put(&ppd->pport_kobj);
+               kobject_put(&ppd->sl2vl_kobj);
+       }
+}

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