forked from Minki/linux
bnxt_en: Add support for ethtool get dump.
Add support to collect live firmware coredump via ethtool. Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vasundhara Volam
David S. Miller
parent
50f011b63d
commit
6c5657d085
66
drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h
Normal file
66
drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h
Normal file
@ -0,0 +1,66 @@
|
||||
/* Broadcom NetXtreme-C/E network driver.
|
||||
*
|
||||
* Copyright (c) 2018 Broadcom Inc
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef BNXT_COREDUMP_H
|
||||
#define BNXT_COREDUMP_H
|
||||
|
||||
struct bnxt_coredump_segment_hdr {
|
||||
__u8 signature[4];
|
||||
__le32 component_id;
|
||||
__le32 segment_id;
|
||||
__le32 flags;
|
||||
__u8 low_version;
|
||||
__u8 high_version;
|
||||
__le16 function_id;
|
||||
__le32 offset;
|
||||
__le32 length;
|
||||
__le32 status;
|
||||
__le32 duration;
|
||||
__le32 data_offset;
|
||||
__le32 instance;
|
||||
__le32 rsvd[5];
|
||||
};
|
||||
|
||||
struct bnxt_coredump_record {
|
||||
__u8 signature[4];
|
||||
__le32 flags;
|
||||
__u8 low_version;
|
||||
__u8 high_version;
|
||||
__u8 asic_state;
|
||||
__u8 rsvd0[5];
|
||||
char system_name[32];
|
||||
__le16 year;
|
||||
__le16 month;
|
||||
__le16 day;
|
||||
__le16 hour;
|
||||
__le16 minute;
|
||||
__le16 second;
|
||||
__le16 utc_bias;
|
||||
__le16 rsvd1;
|
||||
char commandline[256];
|
||||
__le32 total_segments;
|
||||
__le32 os_ver_major;
|
||||
__le32 os_ver_minor;
|
||||
__le32 rsvd2;
|
||||
char os_name[32];
|
||||
__le16 end_year;
|
||||
__le16 end_month;
|
||||
__le16 end_day;
|
||||
__le16 end_hour;
|
||||
__le16 end_minute;
|
||||
__le16 end_second;
|
||||
__le16 end_utc_bias;
|
||||
__le32 asic_id1;
|
||||
__le32 asic_id2;
|
||||
__le32 coredump_status;
|
||||
__u8 ioctl_low_version;
|
||||
__u8 ioctl_high_version;
|
||||
__le16 rsvd3[313];
|
||||
};
|
||||
#endif
|
||||
@ -16,12 +16,15 @@
|
||||
#include <linux/etherdevice.h>
|
||||
#include <linux/crc32.h>
|
||||
#include <linux/firmware.h>
|
||||
#include <linux/utsname.h>
|
||||
#include <linux/time.h>
|
||||
#include "bnxt_hsi.h"
|
||||
#include "bnxt.h"
|
||||
#include "bnxt_xdp.h"
|
||||
#include "bnxt_ethtool.h"
|
||||
#include "bnxt_nvm_defs.h" /* NVRAM content constant and structure defs */
|
||||
#include "bnxt_fw_hdr.h" /* Firmware hdr constant and structure defs */
|
||||
#include "bnxt_coredump.h"
|
||||
#define FLASH_NVRAM_TIMEOUT ((HWRM_CMD_TIMEOUT) * 100)
|
||||
#define FLASH_PACKAGE_TIMEOUT ((HWRM_CMD_TIMEOUT) * 200)
|
||||
#define INSTALL_PACKAGE_TIMEOUT ((HWRM_CMD_TIMEOUT) * 200)
|
||||
@ -2685,6 +2688,334 @@ static int bnxt_reset(struct net_device *dev, u32 *flags)
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int bnxt_hwrm_dbg_dma_data(struct bnxt *bp, void *msg, int msg_len,
|
||||
struct bnxt_hwrm_dbg_dma_info *info)
|
||||
{
|
||||
struct hwrm_dbg_cmn_output *cmn_resp = bp->hwrm_cmd_resp_addr;
|
||||
struct hwrm_dbg_cmn_input *cmn_req = msg;
|
||||
__le16 *seq_ptr = msg + info->seq_off;
|
||||
u16 seq = 0, len, segs_off;
|
||||
void *resp = cmn_resp;
|
||||
dma_addr_t dma_handle;
|
||||
int rc, off = 0;
|
||||
void *dma_buf;
|
||||
|
||||
dma_buf = dma_alloc_coherent(&bp->pdev->dev, info->dma_len, &dma_handle,
|
||||
GFP_KERNEL);
|
||||
if (!dma_buf)
|
||||
return -ENOMEM;
|
||||
|
||||
segs_off = offsetof(struct hwrm_dbg_coredump_list_output,
|
||||
total_segments);
|
||||
cmn_req->host_dest_addr = cpu_to_le64(dma_handle);
|
||||
cmn_req->host_buf_len = cpu_to_le32(info->dma_len);
|
||||
mutex_lock(&bp->hwrm_cmd_lock);
|
||||
while (1) {
|
||||
*seq_ptr = cpu_to_le16(seq);
|
||||
rc = _hwrm_send_message(bp, msg, msg_len, HWRM_CMD_TIMEOUT);
|
||||
if (rc)
|
||||
break;
|
||||
|
||||
len = le16_to_cpu(*((__le16 *)(resp + info->data_len_off)));
|
||||
if (!seq &&
|
||||
cmn_req->req_type == cpu_to_le16(HWRM_DBG_COREDUMP_LIST)) {
|
||||
info->segs = le16_to_cpu(*((__le16 *)(resp +
|
||||
segs_off)));
|
||||
if (!info->segs) {
|
||||
rc = -EIO;
|
||||
break;
|
||||
}
|
||||
|
||||
info->dest_buf_size = info->segs *
|
||||
sizeof(struct coredump_segment_record);
|
||||
info->dest_buf = kmalloc(info->dest_buf_size,
|
||||
GFP_KERNEL);
|
||||
if (!info->dest_buf) {
|
||||
rc = -ENOMEM;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (info->dest_buf)
|
||||
memcpy(info->dest_buf + off, dma_buf, len);
|
||||
|
||||
if (cmn_req->req_type ==
|
||||
cpu_to_le16(HWRM_DBG_COREDUMP_RETRIEVE))
|
||||
info->dest_buf_size += len;
|
||||
|
||||
if (!(cmn_resp->flags & HWRM_DBG_CMN_FLAGS_MORE))
|
||||
break;
|
||||
|
||||
seq++;
|
||||
off += len;
|
||||
}
|
||||
mutex_unlock(&bp->hwrm_cmd_lock);
|
||||
dma_free_coherent(&bp->pdev->dev, info->dma_len, dma_buf, dma_handle);
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int bnxt_hwrm_dbg_coredump_list(struct bnxt *bp,
|
||||
struct bnxt_coredump *coredump)
|
||||
{
|
||||
struct hwrm_dbg_coredump_list_input req = {0};
|
||||
struct bnxt_hwrm_dbg_dma_info info = {NULL};
|
||||
int rc;
|
||||
|
||||
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_DBG_COREDUMP_LIST, -1, -1);
|
||||
|
||||
info.dma_len = COREDUMP_LIST_BUF_LEN;
|
||||
info.seq_off = offsetof(struct hwrm_dbg_coredump_list_input, seq_no);
|
||||
info.data_len_off = offsetof(struct hwrm_dbg_coredump_list_output,
|
||||
data_len);
|
||||
|
||||
rc = bnxt_hwrm_dbg_dma_data(bp, &req, sizeof(req), &info);
|
||||
if (!rc) {
|
||||
coredump->data = info.dest_buf;
|
||||
coredump->data_size = info.dest_buf_size;
|
||||
coredump->total_segs = info.segs;
|
||||
}
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int bnxt_hwrm_dbg_coredump_initiate(struct bnxt *bp, u16 component_id,
|
||||
u16 segment_id)
|
||||
{
|
||||
struct hwrm_dbg_coredump_initiate_input req = {0};
|
||||
|
||||
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_DBG_COREDUMP_INITIATE, -1, -1);
|
||||
req.component_id = cpu_to_le16(component_id);
|
||||
req.segment_id = cpu_to_le16(segment_id);
|
||||
|
||||
return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
|
||||
}
|
||||
|
||||
static int bnxt_hwrm_dbg_coredump_retrieve(struct bnxt *bp, u16 component_id,
|
||||
u16 segment_id, u32 *seg_len,
|
||||
void *buf, u32 offset)
|
||||
{
|
||||
struct hwrm_dbg_coredump_retrieve_input req = {0};
|
||||
struct bnxt_hwrm_dbg_dma_info info = {NULL};
|
||||
int rc;
|
||||
|
||||
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_DBG_COREDUMP_RETRIEVE, -1, -1);
|
||||
req.component_id = cpu_to_le16(component_id);
|
||||
req.segment_id = cpu_to_le16(segment_id);
|
||||
|
||||
info.dma_len = COREDUMP_RETRIEVE_BUF_LEN;
|
||||
info.seq_off = offsetof(struct hwrm_dbg_coredump_retrieve_input,
|
||||
seq_no);
|
||||
info.data_len_off = offsetof(struct hwrm_dbg_coredump_retrieve_output,
|
||||
data_len);
|
||||
if (buf)
|
||||
info.dest_buf = buf + offset;
|
||||
|
||||
rc = bnxt_hwrm_dbg_dma_data(bp, &req, sizeof(req), &info);
|
||||
if (!rc)
|
||||
*seg_len = info.dest_buf_size;
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void
|
||||
bnxt_fill_coredump_seg_hdr(struct bnxt *bp,
|
||||
struct bnxt_coredump_segment_hdr *seg_hdr,
|
||||
struct coredump_segment_record *seg_rec, u32 seg_len,
|
||||
int status, u32 duration, u32 instance)
|
||||
{
|
||||
memset(seg_hdr, 0, sizeof(*seg_hdr));
|
||||
strcpy(seg_hdr->signature, "sEgM");
|
||||
if (seg_rec) {
|
||||
seg_hdr->component_id = (__force __le32)seg_rec->component_id;
|
||||
seg_hdr->segment_id = (__force __le32)seg_rec->segment_id;
|
||||
seg_hdr->low_version = seg_rec->version_low;
|
||||
seg_hdr->high_version = seg_rec->version_hi;
|
||||
} else {
|
||||
/* For hwrm_ver_get response Component id = 2
|
||||
* and Segment id = 0
|
||||
*/
|
||||
seg_hdr->component_id = cpu_to_le32(2);
|
||||
seg_hdr->segment_id = 0;
|
||||
}
|
||||
seg_hdr->function_id = cpu_to_le16(bp->pdev->devfn);
|
||||
seg_hdr->length = cpu_to_le32(seg_len);
|
||||
seg_hdr->status = cpu_to_le32(status);
|
||||
seg_hdr->duration = cpu_to_le32(duration);
|
||||
seg_hdr->data_offset = cpu_to_le32(sizeof(*seg_hdr));
|
||||
seg_hdr->instance = cpu_to_le32(instance);
|
||||
}
|
||||
|
||||
static void
|
||||
bnxt_fill_coredump_record(struct bnxt *bp, struct bnxt_coredump_record *record,
|
||||
time64_t start, s16 start_utc, u16 total_segs,
|
||||
int status)
|
||||
{
|
||||
time64_t end = ktime_get_real_seconds();
|
||||
u32 os_ver_major = 0, os_ver_minor = 0;
|
||||
struct tm tm;
|
||||
|
||||
time64_to_tm(start, 0, &tm);
|
||||
memset(record, 0, sizeof(*record));
|
||||
strcpy(record->signature, "cOrE");
|
||||
record->flags = 0;
|
||||
record->low_version = 0;
|
||||
record->high_version = 1;
|
||||
record->asic_state = 0;
|
||||
strncpy(record->system_name, utsname()->nodename,
|
||||
strlen(utsname()->nodename));
|
||||
record->year = cpu_to_le16(tm.tm_year);
|
||||
record->month = cpu_to_le16(tm.tm_mon);
|
||||
record->day = cpu_to_le16(tm.tm_mday);
|
||||
record->hour = cpu_to_le16(tm.tm_hour);
|
||||
record->minute = cpu_to_le16(tm.tm_min);
|
||||
record->second = cpu_to_le16(tm.tm_sec);
|
||||
record->utc_bias = cpu_to_le16(start_utc);
|
||||
strcpy(record->commandline, "ethtool -w");
|
||||
record->total_segments = cpu_to_le32(total_segs);
|
||||
|
||||
sscanf(utsname()->release, "%u.%u", &os_ver_major, &os_ver_minor);
|
||||
record->os_ver_major = cpu_to_le32(os_ver_major);
|
||||
record->os_ver_minor = cpu_to_le32(os_ver_minor);
|
||||
|
||||
strcpy(record->os_name, utsname()->sysname);
|
||||
time64_to_tm(end, 0, &tm);
|
||||
record->end_year = cpu_to_le16(tm.tm_year + 1900);
|
||||
record->end_month = cpu_to_le16(tm.tm_mon + 1);
|
||||
record->end_day = cpu_to_le16(tm.tm_mday);
|
||||
record->end_hour = cpu_to_le16(tm.tm_hour);
|
||||
record->end_minute = cpu_to_le16(tm.tm_min);
|
||||
record->end_second = cpu_to_le16(tm.tm_sec);
|
||||
record->end_utc_bias = cpu_to_le16(sys_tz.tz_minuteswest * 60);
|
||||
record->asic_id1 = cpu_to_le32(bp->chip_num << 16 |
|
||||
bp->ver_resp.chip_rev << 8 |
|
||||
bp->ver_resp.chip_metal);
|
||||
record->asic_id2 = 0;
|
||||
record->coredump_status = cpu_to_le32(status);
|
||||
record->ioctl_low_version = 0;
|
||||
record->ioctl_high_version = 0;
|
||||
}
|
||||
|
||||
static int bnxt_get_coredump(struct bnxt *bp, void *buf, u32 *dump_len)
|
||||
{
|
||||
u32 ver_get_resp_len = sizeof(struct hwrm_ver_get_output);
|
||||
struct coredump_segment_record *seg_record = NULL;
|
||||
u32 offset = 0, seg_hdr_len, seg_record_len;
|
||||
struct bnxt_coredump_segment_hdr seg_hdr;
|
||||
struct bnxt_coredump_record coredump_rec;
|
||||
struct bnxt_coredump coredump = {NULL};
|
||||
time64_t start_time;
|
||||
u16 start_utc;
|
||||
int rc = 0, i;
|
||||
|
||||
start_time = ktime_get_real_seconds();
|
||||
start_utc = sys_tz.tz_minuteswest * 60;
|
||||
seg_hdr_len = sizeof(seg_hdr);
|
||||
|
||||
/* First segment should be hwrm_ver_get response */
|
||||
*dump_len = seg_hdr_len + ver_get_resp_len;
|
||||
if (buf) {
|
||||
bnxt_fill_coredump_seg_hdr(bp, &seg_hdr, NULL, ver_get_resp_len,
|
||||
0, 0, 0);
|
||||
memcpy(buf + offset, &seg_hdr, seg_hdr_len);
|
||||
offset += seg_hdr_len;
|
||||
memcpy(buf + offset, &bp->ver_resp, ver_get_resp_len);
|
||||
offset += ver_get_resp_len;
|
||||
}
|
||||
|
||||
rc = bnxt_hwrm_dbg_coredump_list(bp, &coredump);
|
||||
if (rc) {
|
||||
netdev_err(bp->dev, "Failed to get coredump segment list\n");
|
||||
goto err;
|
||||
}
|
||||
|
||||
*dump_len += seg_hdr_len * coredump.total_segs;
|
||||
|
||||
seg_record = (struct coredump_segment_record *)coredump.data;
|
||||
seg_record_len = sizeof(*seg_record);
|
||||
|
||||
for (i = 0; i < coredump.total_segs; i++) {
|
||||
u16 comp_id = le16_to_cpu(seg_record->component_id);
|
||||
u16 seg_id = le16_to_cpu(seg_record->segment_id);
|
||||
u32 duration = 0, seg_len = 0;
|
||||
unsigned long start, end;
|
||||
|
||||
start = jiffies;
|
||||
|
||||
rc = bnxt_hwrm_dbg_coredump_initiate(bp, comp_id, seg_id);
|
||||
if (rc) {
|
||||
netdev_err(bp->dev,
|
||||
"Failed to initiate coredump for seg = %d\n",
|
||||
seg_record->segment_id);
|
||||
goto next_seg;
|
||||
}
|
||||
|
||||
/* Write segment data into the buffer */
|
||||
rc = bnxt_hwrm_dbg_coredump_retrieve(bp, comp_id, seg_id,
|
||||
&seg_len, buf,
|
||||
offset + seg_hdr_len);
|
||||
if (rc)
|
||||
netdev_err(bp->dev,
|
||||
"Failed to retrieve coredump for seg = %d\n",
|
||||
seg_record->segment_id);
|
||||
|
||||
next_seg:
|
||||
end = jiffies;
|
||||
duration = jiffies_to_msecs(end - start);
|
||||
bnxt_fill_coredump_seg_hdr(bp, &seg_hdr, seg_record, seg_len,
|
||||
rc, duration, 0);
|
||||
|
||||
if (buf) {
|
||||
/* Write segment header into the buffer */
|
||||
memcpy(buf + offset, &seg_hdr, seg_hdr_len);
|
||||
offset += seg_hdr_len + seg_len;
|
||||
}
|
||||
|
||||
*dump_len += seg_len;
|
||||
seg_record =
|
||||
(struct coredump_segment_record *)((u8 *)seg_record +
|
||||
seg_record_len);
|
||||
}
|
||||
|
||||
err:
|
||||
if (buf) {
|
||||
bnxt_fill_coredump_record(bp, &coredump_rec, start_time,
|
||||
start_utc, coredump.total_segs + 1,
|
||||
rc);
|
||||
memcpy(buf + offset, &coredump_rec, sizeof(coredump_rec));
|
||||
}
|
||||
kfree(coredump.data);
|
||||
*dump_len += sizeof(coredump_rec);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int bnxt_get_dump_flag(struct net_device *dev, struct ethtool_dump *dump)
|
||||
{
|
||||
struct bnxt *bp = netdev_priv(dev);
|
||||
|
||||
if (bp->hwrm_spec_code < 0x10801)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
dump->version = bp->ver_resp.hwrm_fw_maj_8b << 24 |
|
||||
bp->ver_resp.hwrm_fw_min_8b << 16 |
|
||||
bp->ver_resp.hwrm_fw_bld_8b << 8 |
|
||||
bp->ver_resp.hwrm_fw_rsvd_8b;
|
||||
|
||||
return bnxt_get_coredump(bp, NULL, &dump->len);
|
||||
}
|
||||
|
||||
static int bnxt_get_dump_data(struct net_device *dev, struct ethtool_dump *dump,
|
||||
void *buf)
|
||||
{
|
||||
struct bnxt *bp = netdev_priv(dev);
|
||||
|
||||
if (bp->hwrm_spec_code < 0x10801)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
memset(buf, 0, dump->len);
|
||||
|
||||
return bnxt_get_coredump(bp, buf, &dump->len);
|
||||
}
|
||||
|
||||
void bnxt_ethtool_init(struct bnxt *bp)
|
||||
{
|
||||
struct hwrm_selftest_qlist_output *resp = bp->hwrm_cmd_resp_addr;
|
||||
@ -2788,4 +3119,6 @@ const struct ethtool_ops bnxt_ethtool_ops = {
|
||||
.set_phys_id = bnxt_set_phys_id,
|
||||
.self_test = bnxt_self_test,
|
||||
.reset = bnxt_reset,
|
||||
.get_dump_flag = bnxt_get_dump_flag,
|
||||
.get_dump_data = bnxt_get_dump_data,
|
||||
};
|
||||
|
||||
@ -22,6 +22,43 @@ struct bnxt_led_cfg {
|
||||
u8 rsvd;
|
||||
};
|
||||
|
||||
#define COREDUMP_LIST_BUF_LEN 2048
|
||||
#define COREDUMP_RETRIEVE_BUF_LEN 4096
|
||||
|
||||
struct bnxt_coredump {
|
||||
void *data;
|
||||
int data_size;
|
||||
u16 total_segs;
|
||||
};
|
||||
|
||||
struct bnxt_hwrm_dbg_dma_info {
|
||||
void *dest_buf;
|
||||
int dest_buf_size;
|
||||
u16 dma_len;
|
||||
u16 seq_off;
|
||||
u16 data_len_off;
|
||||
u16 segs;
|
||||
};
|
||||
|
||||
struct hwrm_dbg_cmn_input {
|
||||
__le16 req_type;
|
||||
__le16 cmpl_ring;
|
||||
__le16 seq_id;
|
||||
__le16 target_id;
|
||||
__le64 resp_addr;
|
||||
__le64 host_dest_addr;
|
||||
__le32 host_buf_len;
|
||||
};
|
||||
|
||||
struct hwrm_dbg_cmn_output {
|
||||
__le16 error_code;
|
||||
__le16 req_type;
|
||||
__le16 seq_id;
|
||||
__le16 resp_len;
|
||||
u8 flags;
|
||||
#define HWRM_DBG_CMN_FLAGS_MORE 1
|
||||
};
|
||||
|
||||
#define BNXT_LED_DFLT_ENA \
|
||||
(PORT_LED_CFG_REQ_ENABLES_LED0_ID | \
|
||||
PORT_LED_CFG_REQ_ENABLES_LED0_STATE | \
|
||||
|
||||
Loading…
Reference in New Issue
Block a user