379 lines
10 KiB
C
379 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* IBM Accelerator Family 'GenWQE'
|
|
*
|
|
* (C) Copyright IBM Corp. 2013
|
|
*
|
|
* Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
|
|
* Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
|
|
* Author: Michael Jung <mijung@gmx.net>
|
|
* Author: Michael Ruettger <michael@ibmra.de>
|
|
*/
|
|
|
|
/*
|
|
* Debugfs interfaces for the GenWQE card. Help to debug potential
|
|
* problems. Dump internal chip state for debugging and failure
|
|
* determination.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/debugfs.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
#include "card_base.h"
|
|
#include "card_ddcb.h"
|
|
|
|
static void dbg_uidn_show(struct seq_file *s, struct genwqe_reg *regs,
|
|
int entries)
|
|
{
|
|
unsigned int i;
|
|
u32 v_hi, v_lo;
|
|
|
|
for (i = 0; i < entries; i++) {
|
|
v_hi = (regs[i].val >> 32) & 0xffffffff;
|
|
v_lo = (regs[i].val) & 0xffffffff;
|
|
|
|
seq_printf(s, " 0x%08x 0x%08x 0x%08x 0x%08x EXT_ERR_REC\n",
|
|
regs[i].addr, regs[i].idx, v_hi, v_lo);
|
|
}
|
|
}
|
|
|
|
static int curr_dbg_uidn_show(struct seq_file *s, void *unused, int uid)
|
|
{
|
|
struct genwqe_dev *cd = s->private;
|
|
int entries;
|
|
struct genwqe_reg *regs;
|
|
|
|
entries = genwqe_ffdc_buff_size(cd, uid);
|
|
if (entries < 0)
|
|
return -EINVAL;
|
|
|
|
if (entries == 0)
|
|
return 0;
|
|
|
|
regs = kcalloc(entries, sizeof(*regs), GFP_KERNEL);
|
|
if (regs == NULL)
|
|
return -ENOMEM;
|
|
|
|
genwqe_stop_traps(cd); /* halt the traps while dumping data */
|
|
genwqe_ffdc_buff_read(cd, uid, regs, entries);
|
|
genwqe_start_traps(cd);
|
|
|
|
dbg_uidn_show(s, regs, entries);
|
|
kfree(regs);
|
|
return 0;
|
|
}
|
|
|
|
static int curr_dbg_uid0_show(struct seq_file *s, void *unused)
|
|
{
|
|
return curr_dbg_uidn_show(s, unused, 0);
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(curr_dbg_uid0);
|
|
|
|
static int curr_dbg_uid1_show(struct seq_file *s, void *unused)
|
|
{
|
|
return curr_dbg_uidn_show(s, unused, 1);
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(curr_dbg_uid1);
|
|
|
|
static int curr_dbg_uid2_show(struct seq_file *s, void *unused)
|
|
{
|
|
return curr_dbg_uidn_show(s, unused, 2);
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(curr_dbg_uid2);
|
|
|
|
static int prev_dbg_uidn_show(struct seq_file *s, void *unused, int uid)
|
|
{
|
|
struct genwqe_dev *cd = s->private;
|
|
|
|
dbg_uidn_show(s, cd->ffdc[uid].regs, cd->ffdc[uid].entries);
|
|
return 0;
|
|
}
|
|
|
|
static int prev_dbg_uid0_show(struct seq_file *s, void *unused)
|
|
{
|
|
return prev_dbg_uidn_show(s, unused, 0);
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(prev_dbg_uid0);
|
|
|
|
static int prev_dbg_uid1_show(struct seq_file *s, void *unused)
|
|
{
|
|
return prev_dbg_uidn_show(s, unused, 1);
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(prev_dbg_uid1);
|
|
|
|
static int prev_dbg_uid2_show(struct seq_file *s, void *unused)
|
|
{
|
|
return prev_dbg_uidn_show(s, unused, 2);
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(prev_dbg_uid2);
|
|
|
|
static int curr_regs_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct genwqe_dev *cd = s->private;
|
|
unsigned int i;
|
|
struct genwqe_reg *regs;
|
|
|
|
regs = kcalloc(GENWQE_FFDC_REGS, sizeof(*regs), GFP_KERNEL);
|
|
if (regs == NULL)
|
|
return -ENOMEM;
|
|
|
|
genwqe_stop_traps(cd);
|
|
genwqe_read_ffdc_regs(cd, regs, GENWQE_FFDC_REGS, 1);
|
|
genwqe_start_traps(cd);
|
|
|
|
for (i = 0; i < GENWQE_FFDC_REGS; i++) {
|
|
if (regs[i].addr == 0xffffffff)
|
|
break; /* invalid entries */
|
|
|
|
if (regs[i].val == 0x0ull)
|
|
continue; /* do not print 0x0 FIRs */
|
|
|
|
seq_printf(s, " 0x%08x 0x%016llx\n",
|
|
regs[i].addr, regs[i].val);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(curr_regs);
|
|
|
|
static int prev_regs_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct genwqe_dev *cd = s->private;
|
|
unsigned int i;
|
|
struct genwqe_reg *regs = cd->ffdc[GENWQE_DBG_REGS].regs;
|
|
|
|
if (regs == NULL)
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < GENWQE_FFDC_REGS; i++) {
|
|
if (regs[i].addr == 0xffffffff)
|
|
break; /* invalid entries */
|
|
|
|
if (regs[i].val == 0x0ull)
|
|
continue; /* do not print 0x0 FIRs */
|
|
|
|
seq_printf(s, " 0x%08x 0x%016llx\n",
|
|
regs[i].addr, regs[i].val);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(prev_regs);
|
|
|
|
static int jtimer_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct genwqe_dev *cd = s->private;
|
|
unsigned int vf_num;
|
|
u64 jtimer;
|
|
|
|
jtimer = genwqe_read_vreg(cd, IO_SLC_VF_APPJOB_TIMEOUT, 0);
|
|
seq_printf(s, " PF 0x%016llx %d msec\n", jtimer,
|
|
GENWQE_PF_JOBTIMEOUT_MSEC);
|
|
|
|
for (vf_num = 0; vf_num < cd->num_vfs; vf_num++) {
|
|
jtimer = genwqe_read_vreg(cd, IO_SLC_VF_APPJOB_TIMEOUT,
|
|
vf_num + 1);
|
|
seq_printf(s, " VF%-2d 0x%016llx %d msec\n", vf_num, jtimer,
|
|
cd->vf_jobtimeout_msec[vf_num]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(jtimer);
|
|
|
|
static int queue_working_time_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct genwqe_dev *cd = s->private;
|
|
unsigned int vf_num;
|
|
u64 t;
|
|
|
|
t = genwqe_read_vreg(cd, IO_SLC_VF_QUEUE_WTIME, 0);
|
|
seq_printf(s, " PF 0x%016llx\n", t);
|
|
|
|
for (vf_num = 0; vf_num < cd->num_vfs; vf_num++) {
|
|
t = genwqe_read_vreg(cd, IO_SLC_VF_QUEUE_WTIME, vf_num + 1);
|
|
seq_printf(s, " VF%-2d 0x%016llx\n", vf_num, t);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(queue_working_time);
|
|
|
|
static int ddcb_info_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct genwqe_dev *cd = s->private;
|
|
unsigned int i;
|
|
struct ddcb_queue *queue;
|
|
struct ddcb *pddcb;
|
|
|
|
queue = &cd->queue;
|
|
seq_puts(s, "DDCB QUEUE:\n");
|
|
seq_printf(s, " ddcb_max: %d\n"
|
|
" ddcb_daddr: %016llx - %016llx\n"
|
|
" ddcb_vaddr: %p\n"
|
|
" ddcbs_in_flight: %u\n"
|
|
" ddcbs_max_in_flight: %u\n"
|
|
" ddcbs_completed: %u\n"
|
|
" return_on_busy: %u\n"
|
|
" wait_on_busy: %u\n"
|
|
" irqs_processed: %u\n",
|
|
queue->ddcb_max, (long long)queue->ddcb_daddr,
|
|
(long long)queue->ddcb_daddr +
|
|
(queue->ddcb_max * DDCB_LENGTH),
|
|
queue->ddcb_vaddr, queue->ddcbs_in_flight,
|
|
queue->ddcbs_max_in_flight, queue->ddcbs_completed,
|
|
queue->return_on_busy, queue->wait_on_busy,
|
|
cd->irqs_processed);
|
|
|
|
/* Hardware State */
|
|
seq_printf(s, " 0x%08x 0x%016llx IO_QUEUE_CONFIG\n"
|
|
" 0x%08x 0x%016llx IO_QUEUE_STATUS\n"
|
|
" 0x%08x 0x%016llx IO_QUEUE_SEGMENT\n"
|
|
" 0x%08x 0x%016llx IO_QUEUE_INITSQN\n"
|
|
" 0x%08x 0x%016llx IO_QUEUE_WRAP\n"
|
|
" 0x%08x 0x%016llx IO_QUEUE_OFFSET\n"
|
|
" 0x%08x 0x%016llx IO_QUEUE_WTIME\n"
|
|
" 0x%08x 0x%016llx IO_QUEUE_ERRCNTS\n"
|
|
" 0x%08x 0x%016llx IO_QUEUE_LRW\n",
|
|
queue->IO_QUEUE_CONFIG,
|
|
__genwqe_readq(cd, queue->IO_QUEUE_CONFIG),
|
|
queue->IO_QUEUE_STATUS,
|
|
__genwqe_readq(cd, queue->IO_QUEUE_STATUS),
|
|
queue->IO_QUEUE_SEGMENT,
|
|
__genwqe_readq(cd, queue->IO_QUEUE_SEGMENT),
|
|
queue->IO_QUEUE_INITSQN,
|
|
__genwqe_readq(cd, queue->IO_QUEUE_INITSQN),
|
|
queue->IO_QUEUE_WRAP,
|
|
__genwqe_readq(cd, queue->IO_QUEUE_WRAP),
|
|
queue->IO_QUEUE_OFFSET,
|
|
__genwqe_readq(cd, queue->IO_QUEUE_OFFSET),
|
|
queue->IO_QUEUE_WTIME,
|
|
__genwqe_readq(cd, queue->IO_QUEUE_WTIME),
|
|
queue->IO_QUEUE_ERRCNTS,
|
|
__genwqe_readq(cd, queue->IO_QUEUE_ERRCNTS),
|
|
queue->IO_QUEUE_LRW,
|
|
__genwqe_readq(cd, queue->IO_QUEUE_LRW));
|
|
|
|
seq_printf(s, "DDCB list (ddcb_act=%d/ddcb_next=%d):\n",
|
|
queue->ddcb_act, queue->ddcb_next);
|
|
|
|
pddcb = queue->ddcb_vaddr;
|
|
for (i = 0; i < queue->ddcb_max; i++) {
|
|
seq_printf(s, " %-3d: RETC=%03x SEQ=%04x HSI/SHI=%02x/%02x ",
|
|
i, be16_to_cpu(pddcb->retc_16),
|
|
be16_to_cpu(pddcb->seqnum_16),
|
|
pddcb->hsi, pddcb->shi);
|
|
seq_printf(s, "PRIV=%06llx CMD=%02x\n",
|
|
be64_to_cpu(pddcb->priv_64), pddcb->cmd);
|
|
pddcb++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(ddcb_info);
|
|
|
|
static int info_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct genwqe_dev *cd = s->private;
|
|
u64 app_id, slu_id, bitstream = -1;
|
|
struct pci_dev *pci_dev = cd->pci_dev;
|
|
|
|
slu_id = __genwqe_readq(cd, IO_SLU_UNITCFG);
|
|
app_id = __genwqe_readq(cd, IO_APP_UNITCFG);
|
|
|
|
if (genwqe_is_privileged(cd))
|
|
bitstream = __genwqe_readq(cd, IO_SLU_BITSTREAM);
|
|
|
|
seq_printf(s, "%s driver version: %s\n"
|
|
" Device Name/Type: %s %s CardIdx: %d\n"
|
|
" SLU/APP Config : 0x%016llx/0x%016llx\n"
|
|
" Build Date : %u/%x/%u\n"
|
|
" Base Clock : %u MHz\n"
|
|
" Arch/SVN Release: %u/%llx\n"
|
|
" Bitstream : %llx\n",
|
|
GENWQE_DEVNAME, DRV_VERSION, dev_name(&pci_dev->dev),
|
|
genwqe_is_privileged(cd) ?
|
|
"Physical" : "Virtual or no SR-IOV",
|
|
cd->card_idx, slu_id, app_id,
|
|
(u16)((slu_id >> 12) & 0x0fLLU), /* month */
|
|
(u16)((slu_id >> 4) & 0xffLLU), /* day */
|
|
(u16)((slu_id >> 16) & 0x0fLLU) + 2010, /* year */
|
|
genwqe_base_clock_frequency(cd),
|
|
(u16)((slu_id >> 32) & 0xffLLU), slu_id >> 40,
|
|
bitstream);
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(info);
|
|
|
|
void genwqe_init_debugfs(struct genwqe_dev *cd)
|
|
{
|
|
struct dentry *root;
|
|
char card_name[64];
|
|
char name[64];
|
|
unsigned int i;
|
|
|
|
sprintf(card_name, "%s%d_card", GENWQE_DEVNAME, cd->card_idx);
|
|
|
|
root = debugfs_create_dir(card_name, cd->debugfs_genwqe);
|
|
|
|
/* non privileged interfaces are done here */
|
|
debugfs_create_file("ddcb_info", S_IRUGO, root, cd, &ddcb_info_fops);
|
|
debugfs_create_file("info", S_IRUGO, root, cd, &info_fops);
|
|
debugfs_create_x64("err_inject", 0666, root, &cd->err_inject);
|
|
debugfs_create_u32("ddcb_software_timeout", 0666, root,
|
|
&cd->ddcb_software_timeout);
|
|
debugfs_create_u32("kill_timeout", 0666, root, &cd->kill_timeout);
|
|
|
|
/* privileged interfaces follow here */
|
|
if (!genwqe_is_privileged(cd)) {
|
|
cd->debugfs_root = root;
|
|
return;
|
|
}
|
|
|
|
debugfs_create_file("curr_regs", S_IRUGO, root, cd, &curr_regs_fops);
|
|
debugfs_create_file("curr_dbg_uid0", S_IRUGO, root, cd,
|
|
&curr_dbg_uid0_fops);
|
|
debugfs_create_file("curr_dbg_uid1", S_IRUGO, root, cd,
|
|
&curr_dbg_uid1_fops);
|
|
debugfs_create_file("curr_dbg_uid2", S_IRUGO, root, cd,
|
|
&curr_dbg_uid2_fops);
|
|
debugfs_create_file("prev_regs", S_IRUGO, root, cd, &prev_regs_fops);
|
|
debugfs_create_file("prev_dbg_uid0", S_IRUGO, root, cd,
|
|
&prev_dbg_uid0_fops);
|
|
debugfs_create_file("prev_dbg_uid1", S_IRUGO, root, cd,
|
|
&prev_dbg_uid1_fops);
|
|
debugfs_create_file("prev_dbg_uid2", S_IRUGO, root, cd,
|
|
&prev_dbg_uid2_fops);
|
|
|
|
for (i = 0; i < GENWQE_MAX_VFS; i++) {
|
|
sprintf(name, "vf%u_jobtimeout_msec", i);
|
|
debugfs_create_u32(name, 0666, root,
|
|
&cd->vf_jobtimeout_msec[i]);
|
|
}
|
|
|
|
debugfs_create_file("jobtimer", S_IRUGO, root, cd, &jtimer_fops);
|
|
debugfs_create_file("queue_working_time", S_IRUGO, root, cd,
|
|
&queue_working_time_fops);
|
|
debugfs_create_u32("skip_recovery", 0666, root, &cd->skip_recovery);
|
|
debugfs_create_u32("use_platform_recovery", 0666, root,
|
|
&cd->use_platform_recovery);
|
|
|
|
cd->debugfs_root = root;
|
|
}
|
|
|
|
void genqwe_exit_debugfs(struct genwqe_dev *cd)
|
|
{
|
|
debugfs_remove_recursive(cd->debugfs_root);
|
|
}
|