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/*
* Copyright (C) 2017 Chelsio Communications. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
*/
#include "t4_regs.h"
#include "cxgb4.h"
#include "cxgb4_cudbg.h"
#include "cudbg_entity.h"
static const struct cxgb4_collect_entity cxgb4_collect_mem_dump[] = {
{ CUDBG_EDC0, cudbg_collect_edc0_meminfo },
{ CUDBG_EDC1, cudbg_collect_edc1_meminfo },
};
static const struct cxgb4_collect_entity cxgb4_collect_hw_dump[] = {
{ CUDBG_MBOX_LOG, cudbg_collect_mbox_log },
{ CUDBG_DEV_LOG, cudbg_collect_fw_devlog },
{ CUDBG_REG_DUMP, cudbg_collect_reg_dump },
};
static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
{
u32 value, len = 0;
switch (entity) {
case CUDBG_REG_DUMP:
switch (CHELSIO_CHIP_VERSION(adap->params.chip)) {
case CHELSIO_T4:
len = T4_REGMAP_SIZE;
break;
case CHELSIO_T5:
case CHELSIO_T6:
len = T5_REGMAP_SIZE;
break;
default:
break;
}
break;
case CUDBG_DEV_LOG:
len = adap->params.devlog.size;
break;
case CUDBG_EDC0:
value = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
if (value & EDRAM0_ENABLE_F) {
value = t4_read_reg(adap, MA_EDRAM0_BAR_A);
len = EDRAM0_SIZE_G(value);
}
len = cudbg_mbytes_to_bytes(len);
break;
case CUDBG_EDC1:
value = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
if (value & EDRAM1_ENABLE_F) {
value = t4_read_reg(adap, MA_EDRAM1_BAR_A);
len = EDRAM1_SIZE_G(value);
}
len = cudbg_mbytes_to_bytes(len);
break;
case CUDBG_MBOX_LOG:
len = sizeof(struct cudbg_mbox_log) * adap->mbox_log->size;
break;
default:
break;
}
return len;
}
u32 cxgb4_get_dump_length(struct adapter *adap, u32 flag)
{
u32 i, entity;
u32 len = 0;
if (flag & CXGB4_ETH_DUMP_HW) {
for (i = 0; i < ARRAY_SIZE(cxgb4_collect_hw_dump); i++) {
entity = cxgb4_collect_hw_dump[i].entity;
len += cxgb4_get_entity_length(adap, entity);
}
}
if (flag & CXGB4_ETH_DUMP_MEM) {
for (i = 0; i < ARRAY_SIZE(cxgb4_collect_mem_dump); i++) {
entity = cxgb4_collect_mem_dump[i].entity;
len += cxgb4_get_entity_length(adap, entity);
}
}
return len;
}
static void cxgb4_cudbg_collect_entity(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
const struct cxgb4_collect_entity *e_arr,
u32 arr_size, void *buf, u32 *tot_size)
{
struct adapter *adap = pdbg_init->adap;
struct cudbg_error cudbg_err = { 0 };
struct cudbg_entity_hdr *entity_hdr;
u32 entity_size, i;
u32 total_size = 0;
int ret;
for (i = 0; i < arr_size; i++) {
const struct cxgb4_collect_entity *e = &e_arr[i];
/* Skip entities that won't fit in output buffer */
entity_size = cxgb4_get_entity_length(adap, e->entity);
if (entity_size >
pdbg_init->outbuf_size - *tot_size - total_size)
continue;
entity_hdr = cudbg_get_entity_hdr(buf, e->entity);
entity_hdr->entity_type = e->entity;
entity_hdr->start_offset = dbg_buff->offset;
memset(&cudbg_err, 0, sizeof(struct cudbg_error));
ret = e->collect_cb(pdbg_init, dbg_buff, &cudbg_err);
if (ret) {
entity_hdr->size = 0;
dbg_buff->offset = entity_hdr->start_offset;
} else {
cudbg_align_debug_buffer(dbg_buff, entity_hdr);
}
/* Log error and continue with next entity */
if (cudbg_err.sys_err)
ret = CUDBG_SYSTEM_ERROR;
entity_hdr->hdr_flags = ret;
entity_hdr->sys_err = cudbg_err.sys_err;
entity_hdr->sys_warn = cudbg_err.sys_warn;
total_size += entity_hdr->size;
}
*tot_size += total_size;
}
int cxgb4_cudbg_collect(struct adapter *adap, void *buf, u32 *buf_size,
u32 flag)
{
struct cudbg_init cudbg_init = { 0 };
struct cudbg_buffer dbg_buff = { 0 };
u32 size, min_size, total_size = 0;
struct cudbg_hdr *cudbg_hdr;
size = *buf_size;
cudbg_init.adap = adap;
cudbg_init.outbuf = buf;
cudbg_init.outbuf_size = size;
dbg_buff.data = buf;
dbg_buff.size = size;
dbg_buff.offset = 0;
cudbg_hdr = (struct cudbg_hdr *)buf;
cudbg_hdr->signature = CUDBG_SIGNATURE;
cudbg_hdr->hdr_len = sizeof(struct cudbg_hdr);
cudbg_hdr->major_ver = CUDBG_MAJOR_VERSION;
cudbg_hdr->minor_ver = CUDBG_MINOR_VERSION;
cudbg_hdr->max_entities = CUDBG_MAX_ENTITY;
cudbg_hdr->chip_ver = adap->params.chip;
cudbg_hdr->dump_type = CUDBG_DUMP_TYPE_MINI;
cudbg_hdr->compress_type = CUDBG_COMPRESSION_NONE;
min_size = sizeof(struct cudbg_hdr) +
sizeof(struct cudbg_entity_hdr) *
cudbg_hdr->max_entities;
if (size < min_size)
return -ENOMEM;
dbg_buff.offset += min_size;
total_size = dbg_buff.offset;
if (flag & CXGB4_ETH_DUMP_HW)
cxgb4_cudbg_collect_entity(&cudbg_init, &dbg_buff,
cxgb4_collect_hw_dump,
ARRAY_SIZE(cxgb4_collect_hw_dump),
buf,
&total_size);
if (flag & CXGB4_ETH_DUMP_MEM)
cxgb4_cudbg_collect_entity(&cudbg_init, &dbg_buff,
cxgb4_collect_mem_dump,
ARRAY_SIZE(cxgb4_collect_mem_dump),
buf,
&total_size);
cudbg_hdr->data_len = total_size;
*buf_size = total_size;
return 0;
}
void cxgb4_init_ethtool_dump(struct adapter *adapter)
{
adapter->eth_dump.flag = CXGB4_ETH_DUMP_NONE;
adapter->eth_dump.version = adapter->params.fw_vers;
adapter->eth_dump.len = 0;
}
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