1802d0beec
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Intel MIC Platform Software Stack (MPSS)
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*
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* Copyright(c) 2014 Intel Corporation.
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*
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* Intel SCIF driver.
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*/
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include "../common/mic_dev.h"
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#include "scif_main.h"
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/* Debugfs parent dir */
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static struct dentry *scif_dbg;
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static int scif_dev_show(struct seq_file *s, void *unused)
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{
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int node;
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seq_printf(s, "Total Nodes %d Self Node Id %d Maxid %d\n",
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scif_info.total, scif_info.nodeid,
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scif_info.maxid);
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if (!scif_dev)
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return 0;
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seq_printf(s, "%-16s\t%-16s\n", "node_id", "state");
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for (node = 0; node <= scif_info.maxid; node++)
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seq_printf(s, "%-16d\t%-16s\n", scif_dev[node].node,
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_scifdev_alive(&scif_dev[node]) ?
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"Running" : "Offline");
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(scif_dev);
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static void scif_display_window(struct scif_window *window, struct seq_file *s)
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{
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int j;
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struct scatterlist *sg;
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scif_pinned_pages_t pin = window->pinned_pages;
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seq_printf(s, "window %p type %d temp %d offset 0x%llx ",
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window, window->type, window->temp, window->offset);
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seq_printf(s, "nr_pages 0x%llx nr_contig_chunks 0x%x prot %d ",
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window->nr_pages, window->nr_contig_chunks, window->prot);
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seq_printf(s, "ref_count %d magic 0x%llx peer_window 0x%llx ",
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window->ref_count, window->magic, window->peer_window);
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seq_printf(s, "unreg_state 0x%x va_for_temp 0x%lx\n",
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window->unreg_state, window->va_for_temp);
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for (j = 0; j < window->nr_contig_chunks; j++)
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seq_printf(s, "page[%d] dma_addr 0x%llx num_pages 0x%llx\n", j,
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window->dma_addr[j], window->num_pages[j]);
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if (window->type == SCIF_WINDOW_SELF && pin)
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for (j = 0; j < window->nr_pages; j++)
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seq_printf(s, "page[%d] = pinned_pages %p address %p\n",
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j, pin->pages[j],
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page_address(pin->pages[j]));
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if (window->st)
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for_each_sg(window->st->sgl, sg, window->st->nents, j)
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seq_printf(s, "sg[%d] dma addr 0x%llx length 0x%x\n",
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j, sg_dma_address(sg), sg_dma_len(sg));
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}
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static void scif_display_all_windows(struct list_head *head, struct seq_file *s)
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{
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struct list_head *item;
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struct scif_window *window;
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list_for_each(item, head) {
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window = list_entry(item, struct scif_window, list);
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scif_display_window(window, s);
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}
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}
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static int scif_rma_show(struct seq_file *s, void *unused)
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{
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struct scif_endpt *ep;
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struct list_head *pos;
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mutex_lock(&scif_info.connlock);
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list_for_each(pos, &scif_info.connected) {
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ep = list_entry(pos, struct scif_endpt, list);
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seq_printf(s, "ep %p self windows\n", ep);
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mutex_lock(&ep->rma_info.rma_lock);
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scif_display_all_windows(&ep->rma_info.reg_list, s);
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seq_printf(s, "ep %p remote windows\n", ep);
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scif_display_all_windows(&ep->rma_info.remote_reg_list, s);
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mutex_unlock(&ep->rma_info.rma_lock);
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}
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mutex_unlock(&scif_info.connlock);
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(scif_rma);
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void __init scif_init_debugfs(void)
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{
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scif_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
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if (!scif_dbg) {
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dev_err(scif_info.mdev.this_device,
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"can't create debugfs dir scif\n");
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return;
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}
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debugfs_create_file("scif_dev", 0444, scif_dbg, NULL, &scif_dev_fops);
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debugfs_create_file("scif_rma", 0444, scif_dbg, NULL, &scif_rma_fops);
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debugfs_create_u8("en_msg_log", 0666, scif_dbg, &scif_info.en_msg_log);
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debugfs_create_u8("p2p_enable", 0666, scif_dbg, &scif_info.p2p_enable);
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}
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void scif_exit_debugfs(void)
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{
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debugfs_remove_recursive(scif_dbg);
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}
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