net/txgbe: add EEPROM functions

Add EEPROM functions.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Jiawen Wu 2020-10-19 16:53:24 +08:00 committed by Ferruh Yigit
parent def7714516
commit 35c90ecccf
9 changed files with 1258 additions and 0 deletions

View File

@ -2,7 +2,9 @@
# Copyright(c) 2015-2020
sources = [
'txgbe_eeprom.c',
'txgbe_hw.c',
'txgbe_mng.c',
]
error_cflags = []

View File

@ -6,6 +6,8 @@
#define _TXGBE_H_
#include "txgbe_type.h"
#include "txgbe_mng.h"
#include "txgbe_eeprom.h"
#include "txgbe_hw.h"
#endif /* _TXGBE_H_ */

View File

@ -0,0 +1,581 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2015-2020
*/
#include "txgbe_hw.h"
#include "txgbe_mng.h"
#include "txgbe_eeprom.h"
/**
* txgbe_init_eeprom_params - Initialize EEPROM params
* @hw: pointer to hardware structure
*
* Initializes the EEPROM parameters txgbe_rom_info within the
* txgbe_hw struct in order to set up EEPROM access.
**/
s32 txgbe_init_eeprom_params(struct txgbe_hw *hw)
{
struct txgbe_rom_info *eeprom = &hw->rom;
u32 eec;
u16 eeprom_size;
int err = 0;
DEBUGFUNC("txgbe_init_eeprom_params");
if (eeprom->type != txgbe_eeprom_unknown)
return 0;
eeprom->type = txgbe_eeprom_none;
/* Set default semaphore delay to 10ms which is a well
* tested value
*/
eeprom->semaphore_delay = 10; /*ms*/
/* Clear EEPROM page size, it will be initialized as needed */
eeprom->word_page_size = 0;
/*
* Check for EEPROM present first.
* If not present leave as none
*/
eec = rd32(hw, TXGBE_SPISTAT);
if (!(eec & TXGBE_SPISTAT_BPFLASH)) {
eeprom->type = txgbe_eeprom_flash;
/*
* SPI EEPROM is assumed here. This code would need to
* change if a future EEPROM is not SPI.
*/
eeprom_size = 4096;
eeprom->word_size = eeprom_size >> 1;
}
eeprom->address_bits = 16;
err = eeprom->read32(hw, TXGBE_SW_REGION_PTR << 1, &eeprom->sw_addr);
if (err) {
DEBUGOUT("EEPROM read failed.\n");
return err;
}
DEBUGOUT("eeprom params: type = %d, size = %d, address bits: "
"%d %d\n", eeprom->type, eeprom->word_size,
eeprom->address_bits, eeprom->sw_addr);
return 0;
}
/**
* txgbe_get_eeprom_semaphore - Get hardware semaphore
* @hw: pointer to hardware structure
*
* Sets the hardware semaphores so EEPROM access can occur for bit-bang method
**/
s32 txgbe_get_eeprom_semaphore(struct txgbe_hw *hw)
{
s32 status = TXGBE_ERR_EEPROM;
u32 timeout = 2000;
u32 i;
u32 swsm;
DEBUGFUNC("txgbe_get_eeprom_semaphore");
/* Get SMBI software semaphore between device drivers first */
for (i = 0; i < timeout; i++) {
/*
* If the SMBI bit is 0 when we read it, then the bit will be
* set and we have the semaphore
*/
swsm = rd32(hw, TXGBE_SWSEM);
if (!(swsm & TXGBE_SWSEM_PF)) {
status = 0;
break;
}
usec_delay(50);
}
if (i == timeout) {
DEBUGOUT("Driver can't access the eeprom - SMBI Semaphore "
"not granted.\n");
/*
* this release is particularly important because our attempts
* above to get the semaphore may have succeeded, and if there
* was a timeout, we should unconditionally clear the semaphore
* bits to free the driver to make progress
*/
txgbe_release_eeprom_semaphore(hw);
usec_delay(50);
/*
* one last try
* If the SMBI bit is 0 when we read it, then the bit will be
* set and we have the semaphore
*/
swsm = rd32(hw, TXGBE_SWSEM);
if (!(swsm & TXGBE_SWSEM_PF))
status = 0;
}
/* Now get the semaphore between SW/FW through the SWESMBI bit */
if (status == 0) {
for (i = 0; i < timeout; i++) {
/* Set the SW EEPROM semaphore bit to request access */
wr32m(hw, TXGBE_MNGSWSYNC,
TXGBE_MNGSWSYNC_REQ, TXGBE_MNGSWSYNC_REQ);
/*
* If we set the bit successfully then we got the
* semaphore.
*/
swsm = rd32(hw, TXGBE_MNGSWSYNC);
if (swsm & TXGBE_MNGSWSYNC_REQ)
break;
usec_delay(50);
}
/*
* Release semaphores and return error if SW EEPROM semaphore
* was not granted because we don't have access to the EEPROM
*/
if (i >= timeout) {
DEBUGOUT("SWESMBI Software EEPROM semaphore not granted.\n");
txgbe_release_eeprom_semaphore(hw);
status = TXGBE_ERR_EEPROM;
}
} else {
DEBUGOUT("Software semaphore SMBI between device drivers "
"not granted.\n");
}
return status;
}
/**
* txgbe_release_eeprom_semaphore - Release hardware semaphore
* @hw: pointer to hardware structure
*
* This function clears hardware semaphore bits.
**/
void txgbe_release_eeprom_semaphore(struct txgbe_hw *hw)
{
DEBUGFUNC("txgbe_release_eeprom_semaphore");
wr32m(hw, TXGBE_MNGSWSYNC, TXGBE_MNGSWSYNC_REQ, 0);
wr32m(hw, TXGBE_SWSEM, TXGBE_SWSEM_PF, 0);
txgbe_flush(hw);
}
/**
* txgbe_ee_read - Read EEPROM word using a host interface cmd
* @hw: pointer to hardware structure
* @offset: offset of word in the EEPROM to read
* @data: word read from the EEPROM
*
* Reads a 16 bit word from the EEPROM using the hostif.
**/
s32 txgbe_ee_read16(struct txgbe_hw *hw, u32 offset,
u16 *data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
u32 addr = (offset << 1);
int err;
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
err = txgbe_hic_sr_read(hw, addr, (u8 *)data, 2);
hw->mac.release_swfw_sync(hw, mask);
return err;
}
/**
* txgbe_ee_read_buffer- Read EEPROM word(s) using hostif
* @hw: pointer to hardware structure
* @offset: offset of word in the EEPROM to read
* @words: number of words
* @data: word(s) read from the EEPROM
*
* Reads a 16 bit word(s) from the EEPROM using the hostif.
**/
s32 txgbe_ee_readw_buffer(struct txgbe_hw *hw,
u32 offset, u32 words, void *data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
u32 addr = (offset << 1);
u32 len = (words << 1);
u8 *buf = (u8 *)data;
int err;
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
while (len) {
u32 seg = (len <= TXGBE_PMMBX_DATA_SIZE
? len : TXGBE_PMMBX_DATA_SIZE);
err = txgbe_hic_sr_read(hw, addr, buf, seg);
if (err)
break;
len -= seg;
addr += seg;
buf += seg;
}
hw->mac.release_swfw_sync(hw, mask);
return err;
}
s32 txgbe_ee_readw_sw(struct txgbe_hw *hw, u32 offset,
u16 *data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
u32 addr = hw->rom.sw_addr + (offset << 1);
int err;
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
err = txgbe_hic_sr_read(hw, addr, (u8 *)data, 2);
hw->mac.release_swfw_sync(hw, mask);
return err;
}
/**
* txgbe_ee_read32 - Read EEPROM word using a host interface cmd
* @hw: pointer to hardware structure
* @offset: offset of word in the EEPROM to read
* @data: word read from the EEPROM
*
* Reads a 32 bit word from the EEPROM using the hostif.
**/
s32 txgbe_ee_read32(struct txgbe_hw *hw, u32 addr, u32 *data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
int err;
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
err = txgbe_hic_sr_read(hw, addr, (u8 *)data, 4);
hw->mac.release_swfw_sync(hw, mask);
return err;
}
/**
* txgbe_ee_read_buffer - Read EEPROM byte(s) using hostif
* @hw: pointer to hardware structure
* @addr: offset of bytes in the EEPROM to read
* @len: number of bytes
* @data: byte(s) read from the EEPROM
*
* Reads a 8 bit byte(s) from the EEPROM using the hostif.
**/
s32 txgbe_ee_read_buffer(struct txgbe_hw *hw,
u32 addr, u32 len, void *data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
u8 *buf = (u8 *)data;
int err;
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
while (len) {
u32 seg = (len <= TXGBE_PMMBX_DATA_SIZE
? len : TXGBE_PMMBX_DATA_SIZE);
err = txgbe_hic_sr_read(hw, addr, buf, seg);
if (err)
break;
len -= seg;
buf += seg;
}
hw->mac.release_swfw_sync(hw, mask);
return err;
}
/**
* txgbe_ee_write - Write EEPROM word using hostif
* @hw: pointer to hardware structure
* @offset: offset of word in the EEPROM to write
* @data: word write to the EEPROM
*
* Write a 16 bit word to the EEPROM using the hostif.
**/
s32 txgbe_ee_write16(struct txgbe_hw *hw, u32 offset,
u16 data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
u32 addr = (offset << 1);
int err;
DEBUGFUNC("\n");
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
err = txgbe_hic_sr_write(hw, addr, (u8 *)&data, 2);
hw->mac.release_swfw_sync(hw, mask);
return err;
}
/**
* txgbe_ee_write_buffer - Write EEPROM word(s) using hostif
* @hw: pointer to hardware structure
* @offset: offset of word in the EEPROM to write
* @words: number of words
* @data: word(s) write to the EEPROM
*
* Write a 16 bit word(s) to the EEPROM using the hostif.
**/
s32 txgbe_ee_writew_buffer(struct txgbe_hw *hw,
u32 offset, u32 words, void *data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
u32 addr = (offset << 1);
u32 len = (words << 1);
u8 *buf = (u8 *)data;
int err;
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
while (len) {
u32 seg = (len <= TXGBE_PMMBX_DATA_SIZE
? len : TXGBE_PMMBX_DATA_SIZE);
err = txgbe_hic_sr_write(hw, addr, buf, seg);
if (err)
break;
len -= seg;
buf += seg;
}
hw->mac.release_swfw_sync(hw, mask);
return err;
}
s32 txgbe_ee_writew_sw(struct txgbe_hw *hw, u32 offset,
u16 data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
u32 addr = hw->rom.sw_addr + (offset << 1);
int err;
DEBUGFUNC("\n");
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
err = txgbe_hic_sr_write(hw, addr, (u8 *)&data, 2);
hw->mac.release_swfw_sync(hw, mask);
return err;
}
/**
* txgbe_ee_write32 - Read EEPROM word using a host interface cmd
* @hw: pointer to hardware structure
* @offset: offset of word in the EEPROM to read
* @data: word read from the EEPROM
*
* Reads a 32 bit word from the EEPROM using the hostif.
**/
s32 txgbe_ee_write32(struct txgbe_hw *hw, u32 addr, u32 data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
int err;
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
err = txgbe_hic_sr_write(hw, addr, (u8 *)&data, 4);
hw->mac.release_swfw_sync(hw, mask);
return err;
}
/**
* txgbe_ee_write_buffer - Write EEPROM byte(s) using hostif
* @hw: pointer to hardware structure
* @addr: offset of bytes in the EEPROM to write
* @len: number of bytes
* @data: word(s) write to the EEPROM
*
* Write a 8 bit byte(s) to the EEPROM using the hostif.
**/
s32 txgbe_ee_write_buffer(struct txgbe_hw *hw,
u32 addr, u32 len, void *data)
{
const u32 mask = TXGBE_MNGSEM_SWMBX | TXGBE_MNGSEM_SWFLASH;
u8 *buf = (u8 *)data;
int err;
err = hw->mac.acquire_swfw_sync(hw, mask);
if (err)
return err;
while (len) {
u32 seg = (len <= TXGBE_PMMBX_DATA_SIZE
? len : TXGBE_PMMBX_DATA_SIZE);
err = txgbe_hic_sr_write(hw, addr, buf, seg);
if (err)
break;
len -= seg;
buf += seg;
}
hw->mac.release_swfw_sync(hw, mask);
return err;
}
/**
* txgbe_calc_eeprom_checksum - Calculates and returns the checksum
* @hw: pointer to hardware structure
*
* Returns a negative error code on error, or the 16-bit checksum
**/
#define BUFF_SIZE 64
s32 txgbe_calc_eeprom_checksum(struct txgbe_hw *hw)
{
u16 checksum = 0, read_checksum = 0;
int i, j, seg;
int err;
u16 buffer[BUFF_SIZE];
DEBUGFUNC("txgbe_calc_eeprom_checksum");
err = hw->rom.readw_sw(hw, TXGBE_EEPROM_CHECKSUM, &read_checksum);
if (err) {
DEBUGOUT("EEPROM read failed\n");
return err;
}
for (i = 0; i < TXGBE_EE_CSUM_MAX; i += seg) {
seg = (i + BUFF_SIZE < TXGBE_EE_CSUM_MAX
? BUFF_SIZE : TXGBE_EE_CSUM_MAX - i);
err = hw->rom.readw_buffer(hw, i, seg, buffer);
if (err)
return err;
for (j = 0; j < seg; j++)
checksum += buffer[j];
}
checksum = (u16)TXGBE_EEPROM_SUM - checksum + read_checksum;
return (s32)checksum;
}
/**
* txgbe_validate_eeprom_checksum - Validate EEPROM checksum
* @hw: pointer to hardware structure
* @checksum_val: calculated checksum
*
* Performs checksum calculation and validates the EEPROM checksum. If the
* caller does not need checksum_val, the value can be NULL.
**/
s32 txgbe_validate_eeprom_checksum(struct txgbe_hw *hw,
u16 *checksum_val)
{
u16 checksum;
u16 read_checksum = 0;
int err;
DEBUGFUNC("txgbe_validate_eeprom_checksum");
/* Read the first word from the EEPROM. If this times out or fails, do
* not continue or we could be in for a very long wait while every
* EEPROM read fails
*/
err = hw->rom.read16(hw, 0, &checksum);
if (err) {
DEBUGOUT("EEPROM read failed\n");
return err;
}
err = hw->rom.calc_checksum(hw);
if (err < 0)
return err;
checksum = (u16)(err & 0xffff);
err = hw->rom.readw_sw(hw, TXGBE_EEPROM_CHECKSUM, &read_checksum);
if (err) {
DEBUGOUT("EEPROM read failed\n");
return err;
}
/* Verify read checksum from EEPROM is the same as
* calculated checksum
*/
if (read_checksum != checksum) {
err = TXGBE_ERR_EEPROM_CHECKSUM;
DEBUGOUT("EEPROM checksum error\n");
}
/* If the user cares, return the calculated checksum */
if (checksum_val)
*checksum_val = checksum;
return err;
}
/**
* txgbe_update_eeprom_checksum - Updates the EEPROM checksum
* @hw: pointer to hardware structure
**/
s32 txgbe_update_eeprom_checksum(struct txgbe_hw *hw)
{
s32 status;
u16 checksum;
DEBUGFUNC("txgbe_update_eeprom_checksum");
/* Read the first word from the EEPROM. If this times out or fails, do
* not continue or we could be in for a very long wait while every
* EEPROM read fails
*/
status = hw->rom.read16(hw, 0, &checksum);
if (status) {
DEBUGOUT("EEPROM read failed\n");
return status;
}
status = hw->rom.calc_checksum(hw);
if (status < 0)
return status;
checksum = (u16)(status & 0xffff);
status = hw->rom.writew_sw(hw, TXGBE_EEPROM_CHECKSUM, checksum);
return status;
}

View File

@ -0,0 +1,49 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2015-2020
*/
#ifndef _TXGBE_EEPROM_H_
#define _TXGBE_EEPROM_H_
/* Checksum and EEPROM pointers */
#define TXGBE_PBANUM_PTR_GUARD 0xFAFA
#define TXGBE_EEPROM_SUM 0xBABA
#define TXGBE_FW_PTR 0x0F
#define TXGBE_PBANUM0_PTR 0x05
#define TXGBE_PBANUM1_PTR 0x06
#define TXGBE_SW_REGION_PTR 0x1C
#define TXGBE_EE_CSUM_MAX 0x800
#define TXGBE_EEPROM_CHECKSUM 0x2F
#define TXGBE_SAN_MAC_ADDR_PTR 0x18
#define TXGBE_DEVICE_CAPS 0x1C
#define TXGBE_EEPROM_VERSION_L 0x1D
#define TXGBE_EEPROM_VERSION_H 0x1E
#define TXGBE_ISCSI_BOOT_CONFIG 0x07
s32 txgbe_init_eeprom_params(struct txgbe_hw *hw);
s32 txgbe_calc_eeprom_checksum(struct txgbe_hw *hw);
s32 txgbe_validate_eeprom_checksum(struct txgbe_hw *hw, u16 *checksum_val);
s32 txgbe_update_eeprom_checksum(struct txgbe_hw *hw);
s32 txgbe_get_eeprom_semaphore(struct txgbe_hw *hw);
void txgbe_release_eeprom_semaphore(struct txgbe_hw *hw);
s32 txgbe_ee_read16(struct txgbe_hw *hw, u32 offset, u16 *data);
s32 txgbe_ee_readw_sw(struct txgbe_hw *hw, u32 offset, u16 *data);
s32 txgbe_ee_readw_buffer(struct txgbe_hw *hw, u32 offset, u32 words,
void *data);
s32 txgbe_ee_read32(struct txgbe_hw *hw, u32 addr, u32 *data);
s32 txgbe_ee_read_buffer(struct txgbe_hw *hw, u32 addr, u32 len, void *data);
s32 txgbe_ee_write16(struct txgbe_hw *hw, u32 offset, u16 data);
s32 txgbe_ee_writew_sw(struct txgbe_hw *hw, u32 offset, u16 data);
s32 txgbe_ee_writew_buffer(struct txgbe_hw *hw, u32 offset, u32 words,
void *data);
s32 txgbe_ee_write32(struct txgbe_hw *hw, u32 addr, u32 data);
s32 txgbe_ee_write_buffer(struct txgbe_hw *hw, u32 addr, u32 len, void *data);
#endif /* _TXGBE_EEPROM_H_ */

View File

@ -3,6 +3,7 @@
*/
#include "txgbe_type.h"
#include "txgbe_eeprom.h"
#include "txgbe_hw.h"
#define TXGBE_RAPTOR_RAR_ENTRIES 128
@ -135,13 +136,29 @@ s32 txgbe_init_ops_pf(struct txgbe_hw *hw)
{
struct txgbe_bus_info *bus = &hw->bus;
struct txgbe_mac_info *mac = &hw->mac;
struct txgbe_rom_info *rom = &hw->rom;
DEBUGFUNC("txgbe_init_ops_pf");
/* BUS */
bus->set_lan_id = txgbe_set_lan_id_multi_port;
/* MAC */
mac->num_rar_entries = TXGBE_RAPTOR_RAR_ENTRIES;
/* EEPROM */
rom->init_params = txgbe_init_eeprom_params;
rom->read16 = txgbe_ee_read16;
rom->readw_buffer = txgbe_ee_readw_buffer;
rom->readw_sw = txgbe_ee_readw_sw;
rom->read32 = txgbe_ee_read32;
rom->write16 = txgbe_ee_write16;
rom->writew_buffer = txgbe_ee_writew_buffer;
rom->writew_sw = txgbe_ee_writew_sw;
rom->write32 = txgbe_ee_write32;
rom->validate_checksum = txgbe_validate_eeprom_checksum;
rom->update_checksum = txgbe_update_eeprom_checksum;
rom->calc_checksum = txgbe_calc_eeprom_checksum;
return 0;
}

View File

@ -0,0 +1,396 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2015-2020
*/
#include "txgbe_type.h"
#include "txgbe_mng.h"
/**
* txgbe_calculate_checksum - Calculate checksum for buffer
* @buffer: pointer to EEPROM
* @length: size of EEPROM to calculate a checksum for
* Calculates the checksum for some buffer on a specified length. The
* checksum calculated is returned.
**/
static u8
txgbe_calculate_checksum(u8 *buffer, u32 length)
{
u32 i;
u8 sum = 0;
for (i = 0; i < length; i++)
sum += buffer[i];
return (u8)(0 - sum);
}
/**
* txgbe_hic_unlocked - Issue command to manageability block unlocked
* @hw: pointer to the HW structure
* @buffer: command to write and where the return status will be placed
* @length: length of buffer, must be multiple of 4 bytes
* @timeout: time in ms to wait for command completion
*
* Communicates with the manageability block. On success return 0
* else returns semaphore error when encountering an error acquiring
* semaphore or TXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
*
* This function assumes that the TXGBE_MNGSEM_SWMBX semaphore is held
* by the caller.
**/
static s32
txgbe_hic_unlocked(struct txgbe_hw *hw, u32 *buffer, u32 length, u32 timeout)
{
u32 value, loop;
u16 i, dword_len;
DEBUGFUNC("txgbe_hic_unlocked");
if (!length || length > TXGBE_PMMBX_BSIZE) {
DEBUGOUT("Buffer length failure buffersize=%d.\n", length);
return TXGBE_ERR_HOST_INTERFACE_COMMAND;
}
/* Calculate length in DWORDs. We must be DWORD aligned */
if (length % sizeof(u32)) {
DEBUGOUT("Buffer length failure, not aligned to dword");
return TXGBE_ERR_INVALID_ARGUMENT;
}
dword_len = length >> 2;
/* The device driver writes the relevant command block
* into the ram area.
*/
for (i = 0; i < dword_len; i++) {
wr32a(hw, TXGBE_MNGMBX, i, cpu_to_le32(buffer[i]));
buffer[i] = rd32a(hw, TXGBE_MNGMBX, i);
}
txgbe_flush(hw);
/* Setting this bit tells the ARC that a new command is pending. */
wr32m(hw, TXGBE_MNGMBXCTL,
TXGBE_MNGMBXCTL_SWRDY, TXGBE_MNGMBXCTL_SWRDY);
/* Check command completion */
loop = po32m(hw, TXGBE_MNGMBXCTL,
TXGBE_MNGMBXCTL_FWRDY, TXGBE_MNGMBXCTL_FWRDY,
&value, timeout, 1000);
if (!loop || !(value & TXGBE_MNGMBXCTL_FWACK)) {
DEBUGOUT("Command has failed with no status valid.\n");
return TXGBE_ERR_HOST_INTERFACE_COMMAND;
}
return 0;
}
/**
* txgbe_host_interface_command - Issue command to manageability block
* @hw: pointer to the HW structure
* @buffer: contains the command to write and where the return status will
* be placed
* @length: length of buffer, must be multiple of 4 bytes
* @timeout: time in ms to wait for command completion
* @return_data: read and return data from the buffer (true) or not (false)
* Needed because FW structures are big endian and decoding of
* these fields can be 8 bit or 16 bit based on command. Decoding
* is not easily understood without making a table of commands.
* So we will leave this up to the caller to read back the data
* in these cases.
*
* Communicates with the manageability block. On success return 0
* else returns semaphore error when encountering an error acquiring
* semaphore or TXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
**/
static s32
txgbe_host_interface_command(struct txgbe_hw *hw, u32 *buffer,
u32 length, u32 timeout, bool return_data)
{
u32 hdr_size = sizeof(struct txgbe_hic_hdr);
struct txgbe_hic_hdr *resp = (struct txgbe_hic_hdr *)buffer;
u16 buf_len;
s32 err;
u32 bi;
u32 dword_len;
DEBUGFUNC("txgbe_host_interface_command");
if (length == 0 || length > TXGBE_PMMBX_BSIZE) {
DEBUGOUT("Buffer length failure buffersize=%d.\n", length);
return TXGBE_ERR_HOST_INTERFACE_COMMAND;
}
/* Take management host interface semaphore */
err = hw->mac.acquire_swfw_sync(hw, TXGBE_MNGSEM_SWMBX);
if (err)
return err;
err = txgbe_hic_unlocked(hw, buffer, length, timeout);
if (err)
goto rel_out;
if (!return_data)
goto rel_out;
/* Calculate length in DWORDs */
dword_len = hdr_size >> 2;
/* first pull in the header so we know the buffer length */
for (bi = 0; bi < dword_len; bi++)
buffer[bi] = rd32a(hw, TXGBE_MNGMBX, bi);
/*
* If there is any thing in data position pull it in
* Read Flash command requires reading buffer length from
* two byes instead of one byte
*/
if (resp->cmd == 0x30) {
for (; bi < dword_len + 2; bi++)
buffer[bi] = rd32a(hw, TXGBE_MNGMBX, bi);
buf_len = (((u16)(resp->cmd_or_resp.ret_status) << 3)
& 0xF00) | resp->buf_len;
hdr_size += (2 << 2);
} else {
buf_len = resp->buf_len;
}
if (!buf_len)
goto rel_out;
if (length < buf_len + hdr_size) {
DEBUGOUT("Buffer not large enough for reply message.\n");
err = TXGBE_ERR_HOST_INTERFACE_COMMAND;
goto rel_out;
}
/* Calculate length in DWORDs, add 3 for odd lengths */
dword_len = (buf_len + 3) >> 2;
/* Pull in the rest of the buffer (bi is where we left off) */
for (; bi <= dword_len; bi++)
buffer[bi] = rd32a(hw, TXGBE_MNGMBX, bi);
rel_out:
hw->mac.release_swfw_sync(hw, TXGBE_MNGSEM_SWMBX);
return err;
}
/**
* txgbe_hic_sr_read - Read EEPROM word using a host interface cmd
* assuming that the semaphore is already obtained.
* @hw: pointer to hardware structure
* @offset: offset of word in the EEPROM to read
* @data: word read from the EEPROM
*
* Reads a 16 bit word from the EEPROM using the hostif.
**/
s32 txgbe_hic_sr_read(struct txgbe_hw *hw, u32 addr, u8 *buf, int len)
{
struct txgbe_hic_read_shadow_ram command;
u32 value;
int err, i = 0, j = 0;
if (len > TXGBE_PMMBX_DATA_SIZE)
return TXGBE_ERR_HOST_INTERFACE_COMMAND;
memset(&command, 0, sizeof(command));
command.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD;
command.hdr.req.buf_lenh = 0;
command.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN;
command.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
command.address = cpu_to_be32(addr);
command.length = cpu_to_be16(len);
err = txgbe_hic_unlocked(hw, (u32 *)&command,
sizeof(command), TXGBE_HI_COMMAND_TIMEOUT);
if (err)
return err;
while (i < (len >> 2)) {
value = rd32a(hw, TXGBE_MNGMBX, FW_NVM_DATA_OFFSET + i);
((u32 *)buf)[i] = value;
i++;
}
value = rd32a(hw, TXGBE_MNGMBX, FW_NVM_DATA_OFFSET + i);
for (i <<= 2; i < len; i++)
((u8 *)buf)[i] = ((u8 *)&value)[j++];
return 0;
}
/**
* txgbe_hic_sr_write - Write EEPROM word using hostif
* @hw: pointer to hardware structure
* @offset: offset of word in the EEPROM to write
* @data: word write to the EEPROM
*
* Write a 16 bit word to the EEPROM using the hostif.
**/
s32 txgbe_hic_sr_write(struct txgbe_hw *hw, u32 addr, u8 *buf, int len)
{
struct txgbe_hic_write_shadow_ram command;
u32 value;
int err = 0, i = 0, j = 0;
if (len > TXGBE_PMMBX_DATA_SIZE)
return TXGBE_ERR_HOST_INTERFACE_COMMAND;
memset(&command, 0, sizeof(command));
command.hdr.req.cmd = FW_WRITE_SHADOW_RAM_CMD;
command.hdr.req.buf_lenh = 0;
command.hdr.req.buf_lenl = FW_WRITE_SHADOW_RAM_LEN;
command.hdr.req.checksum = FW_DEFAULT_CHECKSUM;
command.address = cpu_to_be32(addr);
command.length = cpu_to_be16(len);
while (i < (len >> 2)) {
value = ((u32 *)buf)[i];
wr32a(hw, TXGBE_MNGMBX, FW_NVM_DATA_OFFSET + i, value);
i++;
}
for (i <<= 2; i < len; i++)
((u8 *)&value)[j++] = ((u8 *)buf)[i];
wr32a(hw, TXGBE_MNGMBX, FW_NVM_DATA_OFFSET + (i >> 2), value);
UNREFERENCED_PARAMETER(&command);
return err;
}
/**
* txgbe_hic_set_drv_ver - Sends driver version to firmware
* @hw: pointer to the HW structure
* @maj: driver version major number
* @min: driver version minor number
* @build: driver version build number
* @sub: driver version sub build number
* @len: unused
* @driver_ver: unused
*
* Sends driver version number to firmware through the manageability
* block. On success return 0
* else returns TXGBE_ERR_SWFW_SYNC when encountering an error acquiring
* semaphore or TXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
**/
s32 txgbe_hic_set_drv_ver(struct txgbe_hw *hw, u8 maj, u8 min,
u8 build, u8 sub, u16 len,
const char *driver_ver)
{
struct txgbe_hic_drv_info fw_cmd;
int i;
s32 ret_val = 0;
DEBUGFUNC("txgbe_hic_set_drv_ver");
UNREFERENCED_PARAMETER(len, driver_ver);
fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN;
fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
fw_cmd.port_num = (u8)hw->bus.func;
fw_cmd.ver_maj = maj;
fw_cmd.ver_min = min;
fw_cmd.ver_build = build;
fw_cmd.ver_sub = sub;
fw_cmd.hdr.checksum = 0;
fw_cmd.pad = 0;
fw_cmd.pad2 = 0;
fw_cmd.hdr.checksum = txgbe_calculate_checksum((u8 *)&fw_cmd,
(FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len));
for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
ret_val = txgbe_host_interface_command(hw, (u32 *)&fw_cmd,
sizeof(fw_cmd),
TXGBE_HI_COMMAND_TIMEOUT,
true);
if (ret_val != 0)
continue;
if (fw_cmd.hdr.cmd_or_resp.ret_status ==
FW_CEM_RESP_STATUS_SUCCESS)
ret_val = 0;
else
ret_val = TXGBE_ERR_HOST_INTERFACE_COMMAND;
break;
}
return ret_val;
}
/**
* txgbe_hic_reset - send reset cmd to fw
* @hw: pointer to hardware structure
*
* Sends reset cmd to firmware through the manageability
* block. On success return 0
* else returns TXGBE_ERR_SWFW_SYNC when encountering an error acquiring
* semaphore or TXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
**/
s32
txgbe_hic_reset(struct txgbe_hw *hw)
{
struct txgbe_hic_reset reset_cmd;
int i;
s32 err = 0;
DEBUGFUNC("\n");
reset_cmd.hdr.cmd = FW_RESET_CMD;
reset_cmd.hdr.buf_len = FW_RESET_LEN;
reset_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
reset_cmd.lan_id = hw->bus.lan_id;
reset_cmd.reset_type = (u16)hw->reset_type;
reset_cmd.hdr.checksum = 0;
reset_cmd.hdr.checksum = txgbe_calculate_checksum((u8 *)&reset_cmd,
(FW_CEM_HDR_LEN + reset_cmd.hdr.buf_len));
for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
err = txgbe_host_interface_command(hw, (u32 *)&reset_cmd,
sizeof(reset_cmd),
TXGBE_HI_COMMAND_TIMEOUT,
true);
if (err != 0)
continue;
if (reset_cmd.hdr.cmd_or_resp.ret_status ==
FW_CEM_RESP_STATUS_SUCCESS)
err = 0;
else
err = TXGBE_ERR_HOST_INTERFACE_COMMAND;
break;
}
return err;
}
/**
* txgbe_mng_present - returns true when management capability is present
* @hw: pointer to hardware structure
*/
bool
txgbe_mng_present(struct txgbe_hw *hw)
{
if (hw->mac.type == txgbe_mac_unknown)
return false;
return !!rd32m(hw, TXGBE_STAT, TXGBE_STAT_MNGINIT);
}
/**
* txgbe_mng_enabled - Is the manageability engine enabled?
* @hw: pointer to hardware structure
*
* Returns true if the manageability engine is enabled.
**/
bool
txgbe_mng_enabled(struct txgbe_hw *hw)
{
UNREFERENCED_PARAMETER(hw);
/* firmware does not control laser */
return false;
}

View File

@ -0,0 +1,176 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2015-2020
*/
#ifndef _TXGBE_MNG_H_
#define _TXGBE_MNG_H_
#include "txgbe_type.h"
#define TXGBE_PMMBX_QSIZE 64 /* Num of dwords in range */
#define TXGBE_PMMBX_BSIZE (TXGBE_PMMBX_QSIZE * 4)
#define TXGBE_PMMBX_DATA_SIZE (TXGBE_PMMBX_BSIZE - FW_NVM_DATA_OFFSET * 4)
#define TXGBE_HI_COMMAND_TIMEOUT 5000 /* Process HI command limit */
#define TXGBE_HI_FLASH_ERASE_TIMEOUT 5000 /* Process Erase command limit */
#define TXGBE_HI_FLASH_UPDATE_TIMEOUT 5000 /* Process Update command limit */
#define TXGBE_HI_FLASH_VERIFY_TIMEOUT 60000 /* Process Apply command limit */
#define TXGBE_HI_PHY_MGMT_REQ_TIMEOUT 2000 /* Wait up to 2 seconds */
/* CEM Support */
#define FW_CEM_HDR_LEN 0x4
#define FW_CEM_CMD_DRIVER_INFO 0xDD
#define FW_CEM_CMD_DRIVER_INFO_LEN 0x5
#define FW_CEM_CMD_RESERVED 0X0
#define FW_CEM_UNUSED_VER 0x0
#define FW_CEM_MAX_RETRIES 3
#define FW_CEM_RESP_STATUS_SUCCESS 0x1
#define FW_READ_SHADOW_RAM_CMD 0x31
#define FW_READ_SHADOW_RAM_LEN 0x6
#define FW_WRITE_SHADOW_RAM_CMD 0x33
#define FW_WRITE_SHADOW_RAM_LEN 0xA /* 8 plus 1 WORD to write */
#define FW_SHADOW_RAM_DUMP_CMD 0x36
#define FW_SHADOW_RAM_DUMP_LEN 0
#define FW_DEFAULT_CHECKSUM 0xFF /* checksum always 0xFF */
#define FW_NVM_DATA_OFFSET 3
#define FW_MAX_READ_BUFFER_SIZE 244
#define FW_DISABLE_RXEN_CMD 0xDE
#define FW_DISABLE_RXEN_LEN 0x1
#define FW_PHY_MGMT_REQ_CMD 0x20
#define FW_RESET_CMD 0xDF
#define FW_RESET_LEN 0x2
#define FW_SETUP_MAC_LINK_CMD 0xE0
#define FW_SETUP_MAC_LINK_LEN 0x2
#define FW_FLASH_UPGRADE_START_CMD 0xE3
#define FW_FLASH_UPGRADE_START_LEN 0x1
#define FW_FLASH_UPGRADE_WRITE_CMD 0xE4
#define FW_FLASH_UPGRADE_VERIFY_CMD 0xE5
#define FW_FLASH_UPGRADE_VERIFY_LEN 0x4
#define FW_PHY_ACT_DATA_COUNT 4
#define FW_PHY_TOKEN_DELAY 5 /* milliseconds */
#define FW_PHY_TOKEN_WAIT 5 /* seconds */
#define FW_PHY_TOKEN_RETRIES ((FW_PHY_TOKEN_WAIT * 1000) / FW_PHY_TOKEN_DELAY)
/* Host Interface Command Structures */
struct txgbe_hic_hdr {
u8 cmd;
u8 buf_len;
union {
u8 cmd_resv;
u8 ret_status;
} cmd_or_resp;
u8 checksum;
};
struct txgbe_hic_hdr2_req {
u8 cmd;
u8 buf_lenh;
u8 buf_lenl;
u8 checksum;
};
struct txgbe_hic_hdr2_rsp {
u8 cmd;
u8 buf_lenl;
u8 buf_lenh_status; /* 7-5: high bits of buf_len, 4-0: status */
u8 checksum;
};
union txgbe_hic_hdr2 {
struct txgbe_hic_hdr2_req req;
struct txgbe_hic_hdr2_rsp rsp;
};
struct txgbe_hic_drv_info {
struct txgbe_hic_hdr hdr;
u8 port_num;
u8 ver_sub;
u8 ver_build;
u8 ver_min;
u8 ver_maj;
u8 pad; /* end spacing to ensure length is mult. of dword */
u16 pad2; /* end spacing to ensure length is mult. of dword2 */
};
/* These need to be dword aligned */
struct txgbe_hic_read_shadow_ram {
union txgbe_hic_hdr2 hdr;
u32 address;
u16 length;
u16 pad2;
u16 data;
u16 pad3;
};
struct txgbe_hic_write_shadow_ram {
union txgbe_hic_hdr2 hdr;
u32 address;
u16 length;
u16 pad2;
u16 data;
u16 pad3;
};
struct txgbe_hic_disable_rxen {
struct txgbe_hic_hdr hdr;
u8 port_number;
u8 pad2;
u16 pad3;
};
struct txgbe_hic_reset {
struct txgbe_hic_hdr hdr;
u16 lan_id;
u16 reset_type;
};
struct txgbe_hic_phy_cfg {
struct txgbe_hic_hdr hdr;
u8 lan_id;
u8 phy_mode;
u16 phy_speed;
};
enum txgbe_module_id {
TXGBE_MODULE_EEPROM = 0,
TXGBE_MODULE_FIRMWARE,
TXGBE_MODULE_HARDWARE,
TXGBE_MODULE_PCIE
};
struct txgbe_hic_upg_start {
struct txgbe_hic_hdr hdr;
u8 module_id;
u8 pad2;
u16 pad3;
};
struct txgbe_hic_upg_write {
struct txgbe_hic_hdr hdr;
u8 data_len;
u8 eof_flag;
u16 check_sum;
u32 data[62];
};
enum txgbe_upg_flag {
TXGBE_RESET_NONE = 0,
TXGBE_RESET_FIRMWARE,
TXGBE_RELOAD_EEPROM,
TXGBE_RESET_LAN
};
struct txgbe_hic_upg_verify {
struct txgbe_hic_hdr hdr;
u32 action_flag;
};
s32 txgbe_hic_sr_read(struct txgbe_hw *hw, u32 addr, u8 *buf, int len);
s32 txgbe_hic_sr_write(struct txgbe_hw *hw, u32 addr, u8 *buf, int len);
s32 txgbe_hic_set_drv_ver(struct txgbe_hw *hw, u8 maj, u8 min, u8 build,
u8 ver, u16 len, const char *str);
s32 txgbe_hic_reset(struct txgbe_hw *hw);
bool txgbe_mng_present(struct txgbe_hw *hw);
bool txgbe_mng_enabled(struct txgbe_hw *hw);
#endif /* _TXGBE_MNG_H_ */

View File

@ -13,6 +13,13 @@
#include "txgbe_osdep.h"
#include "txgbe_devids.h"
enum txgbe_eeprom_type {
txgbe_eeprom_unknown = 0,
txgbe_eeprom_spi,
txgbe_eeprom_flash,
txgbe_eeprom_none /* No NVM support */
};
enum txgbe_mac_type {
txgbe_mac_unknown = 0,
txgbe_mac_raptor,
@ -177,6 +184,15 @@ struct txgbe_rom_info {
s32 (*validate_checksum)(struct txgbe_hw *hw, u16 *checksum_val);
s32 (*update_checksum)(struct txgbe_hw *hw);
s32 (*calc_checksum)(struct txgbe_hw *hw);
enum txgbe_eeprom_type type;
u32 semaphore_delay;
u16 word_size;
u16 address_bits;
u16 word_page_size;
u16 ctrl_word_3;
u32 sw_addr;
};
struct txgbe_flash_info {
@ -357,6 +373,11 @@ struct txgbe_hw {
uint64_t isb_dma;
void IOMEM *isb_mem;
enum txgbe_reset_type {
TXGBE_LAN_RESET = 0,
TXGBE_SW_RESET,
TXGBE_GLOBAL_RESET
} reset_type;
};
#include "txgbe_regs.h"

View File

@ -51,6 +51,7 @@ eth_txgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
struct txgbe_hw *hw = TXGBE_DEV_HW(eth_dev);
struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
const struct rte_memzone *mz;
uint16_t csum;
int err;
PMD_INIT_FUNC_TRACE();
@ -81,6 +82,19 @@ eth_txgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
return -EIO;
}
err = hw->rom.init_params(hw);
if (err != 0) {
PMD_INIT_LOG(ERR, "The EEPROM init failed: %d", err);
return -EIO;
}
/* Make sure we have a good EEPROM before we read from it */
err = hw->rom.validate_checksum(hw, &csum);
if (err != 0) {
PMD_INIT_LOG(ERR, "The EEPROM checksum is not valid: %d", err);
return -EIO;
}
/* Allocate memory for storing MAC addresses */
eth_dev->data->mac_addrs = rte_zmalloc("txgbe", RTE_ETHER_ADDR_LEN *
hw->mac.num_rar_entries, 0);