diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/debugfs.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/debugfs.c | 711 |
1 files changed, 282 insertions, 429 deletions
diff --git a/drivers/infiniband/hw/hfi1/debugfs.c b/drivers/infiniband/hw/hfi1/debugfs.c index e9fa3c293e42..ac37ab7f8995 100644 --- a/drivers/infiniband/hw/hfi1/debugfs.c +++ b/drivers/infiniband/hw/hfi1/debugfs.c @@ -1,55 +1,12 @@ -#ifdef CONFIG_DEBUG_FS +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright(c) 2015-2017 Intel Corporation. - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * BSD LICENSE - * - * 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. - * - Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * + * Copyright(c) 2015-2018 Intel Corporation. */ + #include <linux/debugfs.h> #include <linux/seq_file.h> #include <linux/kernel.h> #include <linux/export.h> -#include <linux/module.h> #include <linux/string.h> #include <linux/types.h> #include <linux/ratelimit.h> @@ -61,88 +18,13 @@ #include "device.h" #include "qp.h" #include "sdma.h" +#include "fault.h" static struct dentry *hfi1_dbg_root; -/* wrappers to enforce srcu in seq file */ -static ssize_t hfi1_seq_read( - struct file *file, - char __user *buf, - size_t size, - loff_t *ppos) -{ - struct dentry *d = file->f_path.dentry; - int srcu_idx; - ssize_t r; - - r = debugfs_use_file_start(d, &srcu_idx); - if (likely(!r)) - r = seq_read(file, buf, size, ppos); - debugfs_use_file_finish(srcu_idx); - return r; -} - -static loff_t hfi1_seq_lseek( - struct file *file, - loff_t offset, - int whence) -{ - struct dentry *d = file->f_path.dentry; - int srcu_idx; - loff_t r; - - r = debugfs_use_file_start(d, &srcu_idx); - if (likely(!r)) - r = seq_lseek(file, offset, whence); - debugfs_use_file_finish(srcu_idx); - return r; -} - #define private2dd(file) (file_inode(file)->i_private) #define private2ppd(file) (file_inode(file)->i_private) -#define DEBUGFS_SEQ_FILE_OPS(name) \ -static const struct seq_operations _##name##_seq_ops = { \ - .start = _##name##_seq_start, \ - .next = _##name##_seq_next, \ - .stop = _##name##_seq_stop, \ - .show = _##name##_seq_show \ -} - -#define DEBUGFS_SEQ_FILE_OPEN(name) \ -static int _##name##_open(struct inode *inode, struct file *s) \ -{ \ - struct seq_file *seq; \ - int ret; \ - ret = seq_open(s, &_##name##_seq_ops); \ - if (ret) \ - return ret; \ - seq = s->private_data; \ - seq->private = inode->i_private; \ - return 0; \ -} - -#define DEBUGFS_FILE_OPS(name) \ -static const struct file_operations _##name##_file_ops = { \ - .owner = THIS_MODULE, \ - .open = _##name##_open, \ - .read = hfi1_seq_read, \ - .llseek = hfi1_seq_lseek, \ - .release = seq_release \ -} - -#define DEBUGFS_FILE_CREATE(name, parent, data, ops, mode) \ -do { \ - struct dentry *ent; \ - ent = debugfs_create_file(name, mode, parent, \ - data, ops); \ - if (!ent) \ - pr_warn("create of %s failed\n", name); \ -} while (0) - -#define DEBUGFS_SEQ_FILE_CREATE(name, parent, data) \ - DEBUGFS_FILE_CREATE(#name, parent, data, &_##name##_file_ops, S_IRUGO) - static void *_opcode_stats_seq_start(struct seq_file *s, loff_t *pos) { struct hfi1_opcode_stats_perctx *opstats; @@ -166,6 +48,17 @@ static void _opcode_stats_seq_stop(struct seq_file *s, void *v) { } +static int opcode_stats_show(struct seq_file *s, u8 i, u64 packets, u64 bytes) +{ + if (!packets && !bytes) + return SEQ_SKIP; + seq_printf(s, "%02x %llu/%llu\n", i, + (unsigned long long)packets, + (unsigned long long)bytes); + + return 0; +} + static int _opcode_stats_seq_show(struct seq_file *s, void *v) { loff_t *spos = v; @@ -173,26 +66,59 @@ static int _opcode_stats_seq_show(struct seq_file *s, void *v) u64 n_packets = 0, n_bytes = 0; struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private; struct hfi1_devdata *dd = dd_from_dev(ibd); + struct hfi1_ctxtdata *rcd; for (j = 0; j < dd->first_dyn_alloc_ctxt; j++) { - if (!dd->rcd[j]) - continue; - n_packets += dd->rcd[j]->opstats->stats[i].n_packets; - n_bytes += dd->rcd[j]->opstats->stats[i].n_bytes; + rcd = hfi1_rcd_get_by_index(dd, j); + if (rcd) { + n_packets += rcd->opstats->stats[i].n_packets; + n_bytes += rcd->opstats->stats[i].n_bytes; + } + hfi1_rcd_put(rcd); } - if (!n_packets && !n_bytes) - return SEQ_SKIP; - seq_printf(s, "%02llx %llu/%llu\n", i, - (unsigned long long)n_packets, - (unsigned long long)n_bytes); - - return 0; + return opcode_stats_show(s, i, n_packets, n_bytes); } DEBUGFS_SEQ_FILE_OPS(opcode_stats); DEBUGFS_SEQ_FILE_OPEN(opcode_stats) DEBUGFS_FILE_OPS(opcode_stats); +static void *_tx_opcode_stats_seq_start(struct seq_file *s, loff_t *pos) +{ + return _opcode_stats_seq_start(s, pos); +} + +static void *_tx_opcode_stats_seq_next(struct seq_file *s, void *v, loff_t *pos) +{ + return _opcode_stats_seq_next(s, v, pos); +} + +static void _tx_opcode_stats_seq_stop(struct seq_file *s, void *v) +{ +} + +static int _tx_opcode_stats_seq_show(struct seq_file *s, void *v) +{ + loff_t *spos = v; + loff_t i = *spos; + int j; + u64 n_packets = 0, n_bytes = 0; + struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private; + struct hfi1_devdata *dd = dd_from_dev(ibd); + + for_each_possible_cpu(j) { + struct hfi1_opcode_stats_perctx *s = + per_cpu_ptr(dd->tx_opstats, j); + n_packets += s->stats[i].n_packets; + n_bytes += s->stats[i].n_bytes; + } + return opcode_stats_show(s, i, n_packets, n_bytes); +} + +DEBUGFS_SEQ_FILE_OPS(tx_opcode_stats); +DEBUGFS_SEQ_FILE_OPEN(tx_opcode_stats) +DEBUGFS_FILE_OPS(tx_opcode_stats); + static void *_ctx_stats_seq_start(struct seq_file *s, loff_t *pos) { struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private; @@ -231,6 +157,7 @@ static int _ctx_stats_seq_show(struct seq_file *s, void *v) u64 n_packets = 0; struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private; struct hfi1_devdata *dd = dd_from_dev(ibd); + struct hfi1_ctxtdata *rcd; if (v == SEQ_START_TOKEN) { seq_puts(s, "Ctx:npkts\n"); @@ -240,11 +167,14 @@ static int _ctx_stats_seq_show(struct seq_file *s, void *v) spos = v; i = *spos; - if (!dd->rcd[i]) + rcd = hfi1_rcd_get_by_index_safe(dd, i); + if (!rcd) return SEQ_SKIP; - for (j = 0; j < ARRAY_SIZE(dd->rcd[i]->opstats->stats); j++) - n_packets += dd->rcd[i]->opstats->stats[j].n_packets; + for (j = 0; j < ARRAY_SIZE(rcd->opstats->stats); j++) + n_packets += rcd->opstats->stats[j].n_packets; + + hfi1_rcd_put(rcd); if (!n_packets) return SEQ_SKIP; @@ -260,10 +190,10 @@ DEBUGFS_FILE_OPS(ctx_stats); static void *_qp_stats_seq_start(struct seq_file *s, loff_t *pos) __acquires(RCU) { - struct qp_iter *iter; + struct rvt_qp_iter *iter; loff_t n = *pos; - iter = qp_iter_init(s->private); + iter = rvt_qp_iter_init(s->private, 0, NULL); /* stop calls rcu_read_unlock */ rcu_read_lock(); @@ -272,7 +202,7 @@ static void *_qp_stats_seq_start(struct seq_file *s, loff_t *pos) return NULL; do { - if (qp_iter_next(iter)) { + if (rvt_qp_iter_next(iter)) { kfree(iter); return NULL; } @@ -285,11 +215,11 @@ static void *_qp_stats_seq_next(struct seq_file *s, void *iter_ptr, loff_t *pos) __must_hold(RCU) { - struct qp_iter *iter = iter_ptr; + struct rvt_qp_iter *iter = iter_ptr; (*pos)++; - if (qp_iter_next(iter)) { + if (rvt_qp_iter_next(iter)) { kfree(iter); return NULL; } @@ -305,7 +235,7 @@ static void _qp_stats_seq_stop(struct seq_file *s, void *iter_ptr) static int _qp_stats_seq_show(struct seq_file *s, void *iter_ptr) { - struct qp_iter *iter = iter_ptr; + struct rvt_qp_iter *iter = iter_ptr; if (!iter) return 0; @@ -361,6 +291,100 @@ DEBUGFS_SEQ_FILE_OPS(sdes); DEBUGFS_SEQ_FILE_OPEN(sdes) DEBUGFS_FILE_OPS(sdes); +static void *_rcds_seq_start(struct seq_file *s, loff_t *pos) +{ + struct hfi1_ibdev *ibd; + struct hfi1_devdata *dd; + + ibd = (struct hfi1_ibdev *)s->private; + dd = dd_from_dev(ibd); + if (!dd->rcd || *pos >= dd->n_krcv_queues) + return NULL; + return pos; +} + +static void *_rcds_seq_next(struct seq_file *s, void *v, loff_t *pos) +{ + struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private; + struct hfi1_devdata *dd = dd_from_dev(ibd); + + ++*pos; + if (!dd->rcd || *pos >= dd->num_rcv_contexts) + return NULL; + return pos; +} + +static void _rcds_seq_stop(struct seq_file *s, void *v) +{ +} + +static int _rcds_seq_show(struct seq_file *s, void *v) +{ + struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private; + struct hfi1_devdata *dd = dd_from_dev(ibd); + struct hfi1_ctxtdata *rcd; + loff_t *spos = v; + loff_t i = *spos; + + rcd = hfi1_rcd_get_by_index_safe(dd, i); + if (rcd) + seqfile_dump_rcd(s, rcd); + hfi1_rcd_put(rcd); + return 0; +} + +DEBUGFS_SEQ_FILE_OPS(rcds); +DEBUGFS_SEQ_FILE_OPEN(rcds) +DEBUGFS_FILE_OPS(rcds); + +static void *_pios_seq_start(struct seq_file *s, loff_t *pos) +{ + struct hfi1_ibdev *ibd; + struct hfi1_devdata *dd; + + ibd = (struct hfi1_ibdev *)s->private; + dd = dd_from_dev(ibd); + if (!dd->send_contexts || *pos >= dd->num_send_contexts) + return NULL; + return pos; +} + +static void *_pios_seq_next(struct seq_file *s, void *v, loff_t *pos) +{ + struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private; + struct hfi1_devdata *dd = dd_from_dev(ibd); + + ++*pos; + if (!dd->send_contexts || *pos >= dd->num_send_contexts) + return NULL; + return pos; +} + +static void _pios_seq_stop(struct seq_file *s, void *v) +{ +} + +static int _pios_seq_show(struct seq_file *s, void *v) +{ + struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private; + struct hfi1_devdata *dd = dd_from_dev(ibd); + struct send_context_info *sci; + loff_t *spos = v; + loff_t i = *spos; + unsigned long flags; + + spin_lock_irqsave(&dd->sc_lock, flags); + sci = &dd->send_contexts[i]; + if (sci && sci->type != SC_USER && sci->allocated && sci->sc) + seqfile_dump_sci(s, i, sci); + spin_unlock_irqrestore(&dd->sc_lock, flags); + return 0; +} + +DEBUGFS_SEQ_FILE_OPS(pios); +DEBUGFS_SEQ_FILE_OPEN(pios) +DEBUGFS_FILE_OPS(pios); + /* read the per-device counters */ static ssize_t dev_counters_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) @@ -891,18 +915,10 @@ static ssize_t qsfp2_debugfs_read(struct file *file, char __user *buf, static int __i2c_debugfs_open(struct inode *in, struct file *fp, u32 target) { struct hfi1_pportdata *ppd; - int ret; - - if (!try_module_get(THIS_MODULE)) - return -ENODEV; ppd = private2ppd(fp); - ret = acquire_chip_resource(ppd->dd, i2c_target(target), 0); - if (ret) /* failed - release the module */ - module_put(THIS_MODULE); - - return ret; + return acquire_chip_resource(ppd->dd, i2c_target(target), 0); } static int i2c1_debugfs_open(struct inode *in, struct file *fp) @@ -922,7 +938,6 @@ static int __i2c_debugfs_release(struct inode *in, struct file *fp, u32 target) ppd = private2ppd(fp); release_chip_resource(ppd->dd, i2c_target(target)); - module_put(THIS_MODULE); return 0; } @@ -940,18 +955,10 @@ static int i2c2_debugfs_release(struct inode *in, struct file *fp) static int __qsfp_debugfs_open(struct inode *in, struct file *fp, u32 target) { struct hfi1_pportdata *ppd; - int ret; - - if (!try_module_get(THIS_MODULE)) - return -ENODEV; ppd = private2ppd(fp); - ret = acquire_chip_resource(ppd->dd, i2c_target(target), 0); - if (ret) /* failed - release the module */ - module_put(THIS_MODULE); - - return ret; + return acquire_chip_resource(ppd->dd, i2c_target(target), 0); } static int qsfp1_debugfs_open(struct inode *in, struct file *fp) @@ -971,7 +978,6 @@ static int __qsfp_debugfs_release(struct inode *in, struct file *fp, u32 target) ppd = private2ppd(fp); release_chip_resource(ppd->dd, i2c_target(target)); - module_put(THIS_MODULE); return 0; } @@ -986,10 +992,82 @@ static int qsfp2_debugfs_release(struct inode *in, struct file *fp) return __qsfp_debugfs_release(in, fp, 1); } +#define EXPROM_WRITE_ENABLE BIT_ULL(14) + +static bool exprom_wp_disabled; + +static int exprom_wp_set(struct hfi1_devdata *dd, bool disable) +{ + u64 gpio_val = 0; + + if (disable) { + gpio_val = EXPROM_WRITE_ENABLE; + exprom_wp_disabled = true; + dd_dev_info(dd, "Disable Expansion ROM Write Protection\n"); + } else { + exprom_wp_disabled = false; + dd_dev_info(dd, "Enable Expansion ROM Write Protection\n"); + } + + write_csr(dd, ASIC_GPIO_OUT, gpio_val); + write_csr(dd, ASIC_GPIO_OE, gpio_val); + + return 0; +} + +static ssize_t exprom_wp_debugfs_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + return 0; +} + +static ssize_t exprom_wp_debugfs_write(struct file *file, + const char __user *buf, size_t count, + loff_t *ppos) +{ + struct hfi1_pportdata *ppd = private2ppd(file); + char cdata; + + if (count != 1) + return -EINVAL; + if (get_user(cdata, buf)) + return -EFAULT; + if (cdata == '0') + exprom_wp_set(ppd->dd, false); + else if (cdata == '1') + exprom_wp_set(ppd->dd, true); + else + return -EINVAL; + + return 1; +} + +static unsigned long exprom_in_use; + +static int exprom_wp_debugfs_open(struct inode *in, struct file *fp) +{ + if (test_and_set_bit(0, &exprom_in_use)) + return -EBUSY; + + return 0; +} + +static int exprom_wp_debugfs_release(struct inode *in, struct file *fp) +{ + struct hfi1_pportdata *ppd = private2ppd(fp); + + if (exprom_wp_disabled) + exprom_wp_set(ppd->dd, false); + clear_bit(0, &exprom_in_use); + + return 0; +} + #define DEBUGFS_OPS(nm, readroutine, writeroutine) \ { \ .name = nm, \ .ops = { \ + .owner = THIS_MODULE, \ .read = readroutine, \ .write = writeroutine, \ .llseek = generic_file_llseek, \ @@ -1000,6 +1078,7 @@ static int qsfp2_debugfs_release(struct inode *in, struct file *fp) { \ .name = nm, \ .ops = { \ + .owner = THIS_MODULE, \ .read = readf, \ .write = writef, \ .llseek = generic_file_llseek, \ @@ -1025,6 +1104,9 @@ static const struct counter_info port_cntr_ops[] = { qsfp1_debugfs_open, qsfp1_debugfs_release), DEBUGFS_XOPS("qsfp2", qsfp2_debugfs_read, qsfp2_debugfs_write, qsfp2_debugfs_open, qsfp2_debugfs_release), + DEBUGFS_XOPS("exprom_wp", exprom_wp_debugfs_read, + exprom_wp_debugfs_write, exprom_wp_debugfs_open, + exprom_wp_debugfs_release), DEBUGFS_OPS("asic_flags", asic_flags_read, asic_flags_write), DEBUGFS_OPS("dc8051_memory", dc8051_memory_read, NULL), DEBUGFS_OPS("lcb", debugfs_lcb_read, debugfs_lcb_write), @@ -1067,228 +1149,13 @@ DEBUGFS_SEQ_FILE_OPS(sdma_cpu_list); DEBUGFS_SEQ_FILE_OPEN(sdma_cpu_list) DEBUGFS_FILE_OPS(sdma_cpu_list); -#ifdef CONFIG_FAULT_INJECTION -static void *_fault_stats_seq_start(struct seq_file *s, loff_t *pos) -{ - struct hfi1_opcode_stats_perctx *opstats; - - if (*pos >= ARRAY_SIZE(opstats->stats)) - return NULL; - return pos; -} - -static void *_fault_stats_seq_next(struct seq_file *s, void *v, loff_t *pos) -{ - struct hfi1_opcode_stats_perctx *opstats; - - ++*pos; - if (*pos >= ARRAY_SIZE(opstats->stats)) - return NULL; - return pos; -} - -static void _fault_stats_seq_stop(struct seq_file *s, void *v) -{ -} - -static int _fault_stats_seq_show(struct seq_file *s, void *v) -{ - loff_t *spos = v; - loff_t i = *spos, j; - u64 n_packets = 0, n_bytes = 0; - struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private; - struct hfi1_devdata *dd = dd_from_dev(ibd); - - for (j = 0; j < dd->first_dyn_alloc_ctxt; j++) { - if (!dd->rcd[j]) - continue; - n_packets += dd->rcd[j]->opstats->stats[i].n_packets; - n_bytes += dd->rcd[j]->opstats->stats[i].n_bytes; - } - if (!n_packets && !n_bytes) - return SEQ_SKIP; - if (!ibd->fault_opcode->n_rxfaults[i] && - !ibd->fault_opcode->n_txfaults[i]) - return SEQ_SKIP; - seq_printf(s, "%02llx %llu/%llu (faults rx:%llu faults: tx:%llu)\n", i, - (unsigned long long)n_packets, - (unsigned long long)n_bytes, - (unsigned long long)ibd->fault_opcode->n_rxfaults[i], - (unsigned long long)ibd->fault_opcode->n_txfaults[i]); - return 0; -} - -DEBUGFS_SEQ_FILE_OPS(fault_stats); -DEBUGFS_SEQ_FILE_OPEN(fault_stats); -DEBUGFS_FILE_OPS(fault_stats); - -static void fault_exit_opcode_debugfs(struct hfi1_ibdev *ibd) -{ - debugfs_remove_recursive(ibd->fault_opcode->dir); - kfree(ibd->fault_opcode); - ibd->fault_opcode = NULL; -} - -static int fault_init_opcode_debugfs(struct hfi1_ibdev *ibd) -{ - struct dentry *parent = ibd->hfi1_ibdev_dbg; - - ibd->fault_opcode = kzalloc(sizeof(*ibd->fault_opcode), GFP_KERNEL); - if (!ibd->fault_opcode) - return -ENOMEM; - - ibd->fault_opcode->attr.interval = 1; - ibd->fault_opcode->attr.require_end = ULONG_MAX; - ibd->fault_opcode->attr.stacktrace_depth = 32; - ibd->fault_opcode->attr.dname = NULL; - ibd->fault_opcode->attr.verbose = 0; - ibd->fault_opcode->fault_by_opcode = false; - ibd->fault_opcode->opcode = 0; - ibd->fault_opcode->mask = 0xff; - - ibd->fault_opcode->dir = - fault_create_debugfs_attr("fault_opcode", - parent, - &ibd->fault_opcode->attr); - if (IS_ERR(ibd->fault_opcode->dir)) { - kfree(ibd->fault_opcode); - return -ENOENT; - } - - DEBUGFS_SEQ_FILE_CREATE(fault_stats, ibd->fault_opcode->dir, ibd); - if (!debugfs_create_bool("fault_by_opcode", 0600, - ibd->fault_opcode->dir, - &ibd->fault_opcode->fault_by_opcode)) - goto fail; - if (!debugfs_create_x8("opcode", 0600, ibd->fault_opcode->dir, - &ibd->fault_opcode->opcode)) - goto fail; - if (!debugfs_create_x8("mask", 0600, ibd->fault_opcode->dir, - &ibd->fault_opcode->mask)) - goto fail; - - return 0; -fail: - fault_exit_opcode_debugfs(ibd); - return -ENOMEM; -} - -static void fault_exit_packet_debugfs(struct hfi1_ibdev *ibd) -{ - debugfs_remove_recursive(ibd->fault_packet->dir); - kfree(ibd->fault_packet); - ibd->fault_packet = NULL; -} - -static int fault_init_packet_debugfs(struct hfi1_ibdev *ibd) -{ - struct dentry *parent = ibd->hfi1_ibdev_dbg; - - ibd->fault_packet = kzalloc(sizeof(*ibd->fault_packet), GFP_KERNEL); - if (!ibd->fault_packet) - return -ENOMEM; - - ibd->fault_packet->attr.interval = 1; - ibd->fault_packet->attr.require_end = ULONG_MAX; - ibd->fault_packet->attr.stacktrace_depth = 32; - ibd->fault_packet->attr.dname = NULL; - ibd->fault_packet->attr.verbose = 0; - ibd->fault_packet->fault_by_packet = false; - - ibd->fault_packet->dir = - fault_create_debugfs_attr("fault_packet", - parent, - &ibd->fault_opcode->attr); - if (IS_ERR(ibd->fault_packet->dir)) { - kfree(ibd->fault_packet); - return -ENOENT; - } - - if (!debugfs_create_bool("fault_by_packet", 0600, - ibd->fault_packet->dir, - &ibd->fault_packet->fault_by_packet)) - goto fail; - if (!debugfs_create_u64("fault_stats", 0400, - ibd->fault_packet->dir, - &ibd->fault_packet->n_faults)) - goto fail; - - return 0; -fail: - fault_exit_packet_debugfs(ibd); - return -ENOMEM; -} - -static void fault_exit_debugfs(struct hfi1_ibdev *ibd) -{ - fault_exit_opcode_debugfs(ibd); - fault_exit_packet_debugfs(ibd); -} - -static int fault_init_debugfs(struct hfi1_ibdev *ibd) -{ - int ret = 0; - - ret = fault_init_opcode_debugfs(ibd); - if (ret) - return ret; - - ret = fault_init_packet_debugfs(ibd); - if (ret) - fault_exit_opcode_debugfs(ibd); - - return ret; -} - -bool hfi1_dbg_fault_suppress_err(struct hfi1_ibdev *ibd) -{ - return ibd->fault_suppress_err; -} - -bool hfi1_dbg_fault_opcode(struct rvt_qp *qp, u32 opcode, bool rx) -{ - bool ret = false; - struct hfi1_ibdev *ibd = to_idev(qp->ibqp.device); - - if (!ibd->fault_opcode || !ibd->fault_opcode->fault_by_opcode) - return false; - if (ibd->fault_opcode->opcode != (opcode & ibd->fault_opcode->mask)) - return false; - ret = should_fail(&ibd->fault_opcode->attr, 1); - if (ret) { - trace_hfi1_fault_opcode(qp, opcode); - if (rx) - ibd->fault_opcode->n_rxfaults[opcode]++; - else - ibd->fault_opcode->n_txfaults[opcode]++; - } - return ret; -} - -bool hfi1_dbg_fault_packet(struct hfi1_packet *packet) -{ - struct rvt_dev_info *rdi = &packet->rcd->ppd->dd->verbs_dev.rdi; - struct hfi1_ibdev *ibd = dev_from_rdi(rdi); - bool ret = false; - - if (!ibd->fault_packet || !ibd->fault_packet->fault_by_packet) - return false; - - ret = should_fail(&ibd->fault_packet->attr, 1); - if (ret) { - ++ibd->fault_packet->n_faults; - trace_hfi1_fault_packet(packet); - } - return ret; -} -#endif - void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd) { char name[sizeof("port0counters") + 1]; char link[10]; struct hfi1_devdata *dd = dd_from_dev(ibd); struct hfi1_pportdata *ppd; + struct dentry *root; int unit = dd->unit; int i, j; @@ -1296,28 +1163,29 @@ void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd) return; snprintf(name, sizeof(name), "%s_%d", class_name(), unit); snprintf(link, sizeof(link), "%d", unit); - ibd->hfi1_ibdev_dbg = debugfs_create_dir(name, hfi1_dbg_root); - if (!ibd->hfi1_ibdev_dbg) { - pr_warn("create of %s failed\n", name); - return; - } + root = debugfs_create_dir(name, hfi1_dbg_root); + ibd->hfi1_ibdev_dbg = root; + ibd->hfi1_ibdev_link = debugfs_create_symlink(link, hfi1_dbg_root, name); - if (!ibd->hfi1_ibdev_link) { - pr_warn("create of %s symlink failed\n", name); - return; - } - DEBUGFS_SEQ_FILE_CREATE(opcode_stats, ibd->hfi1_ibdev_dbg, ibd); - DEBUGFS_SEQ_FILE_CREATE(ctx_stats, ibd->hfi1_ibdev_dbg, ibd); - DEBUGFS_SEQ_FILE_CREATE(qp_stats, ibd->hfi1_ibdev_dbg, ibd); - DEBUGFS_SEQ_FILE_CREATE(sdes, ibd->hfi1_ibdev_dbg, ibd); - DEBUGFS_SEQ_FILE_CREATE(sdma_cpu_list, ibd->hfi1_ibdev_dbg, ibd); + + debugfs_create_file("opcode_stats", 0444, root, ibd, + &_opcode_stats_file_ops); + debugfs_create_file("tx_opcode_stats", 0444, root, ibd, + &_tx_opcode_stats_file_ops); + debugfs_create_file("ctx_stats", 0444, root, ibd, &_ctx_stats_file_ops); + debugfs_create_file("qp_stats", 0444, root, ibd, &_qp_stats_file_ops); + debugfs_create_file("sdes", 0444, root, ibd, &_sdes_file_ops); + debugfs_create_file("rcds", 0444, root, ibd, &_rcds_file_ops); + debugfs_create_file("pios", 0444, root, ibd, &_pios_file_ops); + debugfs_create_file("sdma_cpu_list", 0444, root, ibd, + &_sdma_cpu_list_file_ops); + /* dev counter files */ for (i = 0; i < ARRAY_SIZE(cntr_ops); i++) - DEBUGFS_FILE_CREATE(cntr_ops[i].name, - ibd->hfi1_ibdev_dbg, - dd, - &cntr_ops[i].ops, S_IRUGO); + debugfs_create_file(cntr_ops[i].name, 0444, root, dd, + &cntr_ops[i].ops); + /* per port files */ for (ppd = dd->pport, j = 0; j < dd->num_pports; j++, ppd++) for (i = 0; i < ARRAY_SIZE(port_cntr_ops); i++) { @@ -1325,29 +1193,21 @@ void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd) sizeof(name), port_cntr_ops[i].name, j + 1); - DEBUGFS_FILE_CREATE(name, - ibd->hfi1_ibdev_dbg, - ppd, - &port_cntr_ops[i].ops, + debugfs_create_file(name, !port_cntr_ops[i].ops.write ? - S_IRUGO : S_IRUGO | S_IWUSR); + S_IRUGO : + S_IRUGO | S_IWUSR, + root, ppd, &port_cntr_ops[i].ops); } -#ifdef CONFIG_FAULT_INJECTION - debugfs_create_bool("fault_suppress_err", 0600, - ibd->hfi1_ibdev_dbg, - &ibd->fault_suppress_err); - fault_init_debugfs(ibd); -#endif + hfi1_fault_init_debugfs(ibd); } void hfi1_dbg_ibdev_exit(struct hfi1_ibdev *ibd) { if (!hfi1_dbg_root) goto out; -#ifdef CONFIG_FAULT_INJECTION - fault_exit_debugfs(ibd); -#endif + hfi1_fault_exit_debugfs(ibd); debugfs_remove(ibd->hfi1_ibdev_link); debugfs_remove_recursive(ibd->hfi1_ibdev_dbg); out: @@ -1428,35 +1288,30 @@ static void _driver_stats_seq_stop(struct seq_file *s, void *v) { } -static u64 hfi1_sps_ints(void) +static void hfi1_sps_show_ints(struct seq_file *s) { - unsigned long flags; + unsigned long index, flags; struct hfi1_devdata *dd; u64 sps_ints = 0; - spin_lock_irqsave(&hfi1_devs_lock, flags); - list_for_each_entry(dd, &hfi1_dev_list, list) { + xa_lock_irqsave(&hfi1_dev_table, flags); + xa_for_each(&hfi1_dev_table, index, dd) { sps_ints += get_all_cpu_total(dd->int_counter); } - spin_unlock_irqrestore(&hfi1_devs_lock, flags); - return sps_ints; + xa_unlock_irqrestore(&hfi1_dev_table, flags); + seq_write(s, &sps_ints, sizeof(u64)); } static int _driver_stats_seq_show(struct seq_file *s, void *v) { loff_t *spos = v; - char *buffer; u64 *stats = (u64 *)&hfi1_stats; - size_t sz = seq_get_buf(s, &buffer); - if (sz < sizeof(u64)) - return SEQ_SKIP; /* special case for interrupts */ if (*spos == 0) - *(u64 *)buffer = hfi1_sps_ints(); + hfi1_sps_show_ints(s); else - *(u64 *)buffer = stats[*spos]; - seq_commit(s, sizeof(u64)); + seq_write(s, stats + *spos, sizeof(u64)); return 0; } @@ -1467,10 +1322,10 @@ DEBUGFS_FILE_OPS(driver_stats); void hfi1_dbg_init(void) { hfi1_dbg_root = debugfs_create_dir(DRIVER_NAME, NULL); - if (!hfi1_dbg_root) - pr_warn("init of debugfs failed\n"); - DEBUGFS_SEQ_FILE_CREATE(driver_stats_names, hfi1_dbg_root, NULL); - DEBUGFS_SEQ_FILE_CREATE(driver_stats, hfi1_dbg_root, NULL); + debugfs_create_file("driver_stats_names", 0444, hfi1_dbg_root, NULL, + &_driver_stats_names_file_ops); + debugfs_create_file("driver_stats", 0444, hfi1_dbg_root, NULL, + &_driver_stats_file_ops); } void hfi1_dbg_exit(void) @@ -1478,5 +1333,3 @@ void hfi1_dbg_exit(void) debugfs_remove_recursive(hfi1_dbg_root); hfi1_dbg_root = NULL; } - -#endif |