/* Copyright 2008-2013 Broadcom Corporation
* Copyright (c) 2014 QLogic Corporation
* All rights reserved
*
* Unless you and QLogic execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2, available
* at http://www.gnu.org/licenses/gpl-2.0.html (the "GPL").
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Qlogic software provided under a
* license other than the GPL, without Qlogic's express prior written
* consent.
*
* Written by Yaniv Rosner
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME
": " fmt
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/mutex.h>
#include "bnx2x.h"
#include "bnx2x_cmn.h"
typedef int (*read_sfp_module_eeprom_func_p)(
struct bnx2x_phy *phy,
struct link_params *params,
u8 dev_addr, u16 addr, u8 byte_cnt,
u8 *o_buf, u8);
/********************************************************/
#define MDIO_ACCESS_TIMEOUT 1000
#define WC_LANE_MAX 4
#define I2C_SWITCH_WIDTH 2
#define I2C_BSC0 0
#define I2C_BSC1 1
#define I2C_WA_RETRY_CNT 3
#define I2C_WA_PWR_ITER (I2C_WA_RETRY_CNT - 1)
#define MCPR_IMC_COMMAND_READ_OP 1
#define MCPR_IMC_COMMAND_WRITE_OP 2
/* LED Blink rate that will achieve ~15.9Hz */
#define LED_BLINK_RATE_VAL_E3 354
#define LED_BLINK_RATE_VAL_E1X_E2 480
/***********************************************************/
/* Shortcut definitions */
/***********************************************************/
#define NIG_LATCH_BC_ENABLE_MI_INT 0
#define NIG_STATUS_EMAC0_MI_INT \
NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_EMAC0_MISC_MI_INT
#define NIG_STATUS_XGXS0_LINK10G \
NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK10G
#define NIG_STATUS_XGXS0_LINK_STATUS \
NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS
#define NIG_STATUS_XGXS0_LINK_STATUS_SIZE \
NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS_SIZE
#define NIG_STATUS_SERDES0_LINK_STATUS \
NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_SERDES0_LINK_STATUS
#define NIG_MASK_MI_INT \
NIG_MASK_INTERRUPT_PORT0_REG_MASK_EMAC0_MISC_MI_INT
#define NIG_MASK_XGXS0_LINK10G \
NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK10G
#define NIG_MASK_XGXS0_LINK_STATUS \
NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK_STATUS
#define NIG_MASK_SERDES0_LINK_STATUS \
NIG_MASK_INTERRUPT_PORT0_REG_MASK_SERDES0_LINK_STATUS
#define MDIO_AN_CL73_OR_37_COMPLETE \
(MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE | \
MDIO_GP_STATUS_TOP_AN_STATUS1_CL37_AUTONEG_COMPLETE)
#define XGXS_RESET_BITS \
(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_RSTB_HW | \
MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_IDDQ | \
MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN | \
MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN_SD | \
MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_TXD_FIFO_RSTB)
#define SERDES_RESET_BITS \
(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_RSTB_HW | \
MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_IDDQ | \
MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN | \
MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN_SD)
#define AUTONEG_CL37 SHARED_HW_CFG_AN_ENABLE_CL37
#define AUTONEG_CL73 SHARED_HW_CFG_AN_ENABLE_CL73
#define AUTONEG_BAM SHARED_HW_CFG_AN_ENABLE_BAM
#define AUTONEG_PARALLEL \
SHARED_HW_CFG_AN_ENABLE_PARALLEL_DETECTION
#define AUTONEG_SGMII_FIBER_AUTODET \
SHARED_HW_CFG_AN_EN_SGMII_FIBER_AUTO_DETECT
#define AUTONEG_REMOTE_PHY SHARED_HW_CFG_AN_ENABLE_REMOTE_PHY
#define GP_STATUS_PAUSE_RSOLUTION_TXSIDE \
MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_TXSIDE
#define GP_STATUS_PAUSE_RSOLUTION_RXSIDE \
MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_RXSIDE
#define GP_STATUS_SPEED_MASK \
MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_MASK
#define GP_STATUS_10M MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10M
#define GP_STATUS_100M MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_100M
#define GP_STATUS_1G MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G
#define GP_STATUS_2_5G MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_2_5G
#define GP_STATUS_5G MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_5G
#define GP_STATUS_6G MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_6G
#define GP_STATUS_10G_HIG \
MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_HIG
#define GP_STATUS_10G_CX4 \
MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_CX4
#define GP_STATUS_1G_KX MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G_KX
#define GP_STATUS_10G_KX4 \
MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KX4
#define GP_STATUS_10G_KR MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KR
#define GP_STATUS_10G_XFI MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_XFI
#define GP_STATUS_20G_DXGXS MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_20G_DXGXS
#define GP_STATUS_10G_SFI MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_SFI
#define GP_STATUS_20G_KR2 MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_20G_KR2
#define LINK_10THD LINK_STATUS_SPEED_AND_DUPLEX_10THD
#define LINK_10TFD LINK_STATUS_SPEED_AND_DUPLEX_10TFD
#define LINK_100TXHD LINK_STATUS_SPEED_AND_DUPLEX_100TXHD
#define LINK_100T4 LINK_STATUS_SPEED_AND_DUPLEX_100T4
#define LINK_100TXFD LINK_STATUS_SPEED_AND_DUPLEX_100TXFD
#define LINK_1000THD LINK_STATUS_SPEED_AND_DUPLEX_1000THD
#define LINK_1000TFD LINK_STATUS_SPEED_AND_DUPLEX_1000TFD
#define LINK_1000XFD LINK_STATUS_SPEED_AND_DUPLEX_1000XFD
#define LINK_2500THD LINK_STATUS_SPEED_AND_DUPLEX_2500THD
#define LINK_2500TFD LINK_STATUS_SPEED_AND_DUPLEX_2500TFD
#define LINK_2500XFD LINK_STATUS_SPEED_AND_DUPLEX_2500XFD
#define LINK_10GTFD LINK_STATUS_SPEED_AND_DUPLEX_10GTFD
#define LINK_10GXFD LINK_STATUS_SPEED_AND_DUPLEX_10GXFD
#define LINK_20GTFD LINK_STATUS_SPEED_AND_DUPLEX_20GTFD
#define LINK_20GXFD LINK_STATUS_SPEED_AND_DUPLEX_20GXFD
#define LINK_UPDATE_MASK \
(LINK_STATUS_SPEED_AND_DUPLEX_MASK | \
LINK_STATUS_LINK_UP | \
LINK_STATUS_PHYSICAL_LINK_FLAG | \
LINK_STATUS_AUTO_NEGOTIATE_COMPLETE | \
LINK_STATUS_RX_FLOW_CONTROL_FLAG_MASK | \
LINK_STATUS_TX_FLOW_CONTROL_FLAG_MASK | \
LINK_STATUS_PARALLEL_DETECTION_FLAG_MASK | \
LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE | \
LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE)
#define SFP_EEPROM_CON_TYPE_ADDR 0x2
#define SFP_EEPROM_CON_TYPE_VAL_UNKNOWN 0x0
#define SFP_EEPROM_CON_TYPE_VAL_LC 0x7
#define SFP_EEPROM_CON_TYPE_VAL_COPPER 0x21
#define SFP_EEPROM_CON_TYPE_VAL_RJ45 0x22
#define SFP_EEPROM_10G_COMP_CODE_ADDR 0x3
#define SFP_EEPROM_10G_COMP_CODE_SR_MASK (1<<4)
#define SFP_EEPROM_10G_COMP_CODE_LR_MASK (1<<5)
#define SFP_EEPROM_10G_COMP_CODE_LRM_MASK (1<<6)
#define SFP_EEPROM_1G_COMP_CODE_ADDR 0x6
#define SFP_EEPROM_1G_COMP_CODE_SX (1<<0)
#define SFP_EEPROM_1G_COMP_CODE_LX (1<<1)
#define SFP_EEPROM_1G_COMP_CODE_CX (1<<2)
#define SFP_EEPROM_1G_COMP_CODE_BASE_T (1<<3)
#define SFP_EEPROM_FC_TX_TECH_ADDR 0x8
#define SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE 0x4
#define SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE 0x8
#define SFP_EEPROM_OPTIONS_ADDR 0x40
#define SFP_EEPROM_OPTIONS_LINEAR_RX_OUT_MASK 0x1
#define SFP_EEPROM_OPTIONS_SIZE 2
#define EDC_MODE_LINEAR 0x0022
#define EDC_MODE_LIMITING 0x0044
#define EDC_MODE_PASSIVE_DAC 0x0055
#define EDC_MODE_ACTIVE_DAC 0x0066
/* ETS defines*/
#define DCBX_INVALID_COS (0xFF)
#define ETS_BW_LIMIT_CREDIT_UPPER_BOUND (0x5000)
#define ETS_BW_LIMIT_CREDIT_WEIGHT (0x5000)
#define ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS (1360)
#define ETS_E3B0_NIG_MIN_W_VAL_20GBPS (2720)
#define ETS_E3B0_PBF_MIN_W_VAL (10000)
#define MAX_PACKET_SIZE (9700)
#define MAX_KR_LINK_RETRY 4
#define DEFAULT_TX_DRV_BRDCT 2
#define DEFAULT_TX_DRV_IFIR 0
#define DEFAULT_TX_DRV_POST2 3
#define DEFAULT_TX_DRV_IPRE_DRIVER 6
/**********************************************************/
/* INTERFACE */
/**********************************************************/
#define CL22_WR_OVER_CL45(_bp, _phy, _bank, _addr, _val) \
bnx2x_cl45_write(_bp, _phy, \
(_phy)->def_md_devad, \
(_bank + (_addr & 0xf)), \
_val)
#define CL22_RD_OVER_CL45(_bp, _phy, _bank, _addr, _val) \
bnx2x_cl45_read(_bp, _phy, \
(_phy)->def_md_devad, \
(_bank + (_addr & 0xf)), \
_val)
static int bnx2x_check_half_open_conn(
struct link_params *params,
struct link_vars *vars, u8 notify);
static int bnx2x_sfp_module_detection(
struct bnx2x_phy *phy,
struct link_params *params);
static u32 bnx2x_bits_en(
struct bnx2x *bp, u32 reg, u32 bits)
{
u32 val = REG_RD(bp, reg);
val |= bits;
REG_WR(bp, reg, val);
return val;
}
static u32 bnx2x_bits_dis(
struct bnx2x *bp, u32 reg, u32 bits)
{
u32 val = REG_RD(bp, reg);
val &= ~bits;
REG_WR(bp, reg, val);
return val;
}
/*
* bnx2x_check_lfa - This function checks if link reinitialization is required,
* or link flap can be avoided.
*
* @params: link parameters
* Returns 0 if Link Flap Avoidance conditions are met otherwise, the failed
* condition code.
*/
static int bnx2x_check_lfa(
struct link_params *params)
{
u32 link_status, cfg_idx, lfa_mask, cfg_size;
u32 cur_speed_cap_mask, cur_req_fc_auto_adv, additional_config;
u32 saved_val, req_val, eee_status;
struct bnx2x *bp = params->bp;
additional_config =
REG_RD(bp, params->lfa_base +
offsetof(
struct shmem_lfa, additional_config));
/* NOTE: must be first condition checked -
* to verify DCC bit is cleared in any case!
*/
if (additional_config & NO_LFA_DUE_TO_DCC_MASK) {
DP(NETIF_MSG_LINK,
"No LFA due to DCC flap after clp exit\n");
REG_WR(bp, params->lfa_base +
offsetof(
struct shmem_lfa, additional_config),
additional_config & ~NO_LFA_DUE_TO_DCC_MASK);
return LFA_DCC_LFA_DISABLED;
}
/* Verify that link is up */
link_status = REG_RD(bp, params->shmem_base +
offsetof(
struct shmem_region,
port_mb[params->port].link_status));
if (!(link_status & LINK_STATUS_LINK_UP))
return LFA_LINK_DOWN;
/* if loaded after BOOT from SAN, don't flap the link in any case and
* rely on link set by preboot driver
*/
if (params->feature_config_flags & FEATURE_CONFIG_BOOT_FROM_SAN)
return 0;
/* Verify that loopback mode is not set */
if (params->loopback_mode)
return LFA_LOOPBACK_ENABLED;
/* Verify that MFW supports LFA */
if (!params->lfa_base)
return LFA_MFW_IS_TOO_OLD;
if (params->num_phys == 3) {
cfg_size = 2;
lfa_mask = 0xffffffff;
}
else {
cfg_size = 1;
lfa_mask = 0xffff;
}
/* Compare Duplex */
saved_val = REG_RD(bp, params->lfa_base +
offsetof(
struct shmem_lfa, req_duplex));
req_val = params->req_duplex[0] | (params->req_duplex[1] << 16);
if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
DP(NETIF_MSG_LINK,
"Duplex mismatch %x vs. %x\n",
(saved_val & lfa_mask), (req_val & lfa_mask));
return LFA_DUPLEX_MISMATCH;
}
/* Compare Flow Control */
saved_val = REG_RD(bp, params->lfa_base +
offsetof(
struct shmem_lfa, req_flow_ctrl));
req_val = params->req_flow_ctrl[0] | (params->req_flow_ctrl[1] << 16);
if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
DP(NETIF_MSG_LINK,
"Flow control mismatch %x vs. %x\n",
(saved_val & lfa_mask), (req_val & lfa_mask));
return LFA_FLOW_CTRL_MISMATCH;
}
/* Compare Link Speed */
saved_val = REG_RD(bp, params->lfa_base +
offsetof(
struct shmem_lfa, req_line_speed));
req_val = params->req_line_speed[0] | (params->req_line_speed[1] << 16);
if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
DP(NETIF_MSG_LINK,
"Link speed mismatch %x vs. %x\n",
(saved_val & lfa_mask), (req_val & lfa_mask));
return LFA_LINK_SPEED_MISMATCH;
}
for (cfg_idx = 0; cfg_idx < cfg_size; cfg_idx++) {
cur_speed_cap_mask = REG_RD(bp, params->lfa_base +
offsetof(
struct shmem_lfa,
speed_cap_mask[cfg_idx]));
if (cur_speed_cap_mask != params->speed_cap_mask[cfg_idx]) {
DP(NETIF_MSG_LINK,
"Speed Cap mismatch %x vs. %x\n",
cur_speed_cap_mask,
params->speed_cap_mask[cfg_idx]);
return LFA_SPEED_CAP_MISMATCH;
}
}
cur_req_fc_auto_adv =
REG_RD(bp, params->lfa_base +
offsetof(
struct shmem_lfa, additional_config)) &
REQ_FC_AUTO_ADV_MASK;
if ((u16)cur_req_fc_auto_adv != params->req_fc_auto_adv) {
DP(NETIF_MSG_LINK,
"Flow Ctrl AN mismatch %x vs. %x\n",
cur_req_fc_auto_adv, params->req_fc_auto_adv);
return LFA_FLOW_CTRL_MISMATCH;
}
eee_status = REG_RD(bp, params->shmem2_base +
offsetof(
struct shmem2_region,
eee_status[params->port]));
if (((eee_status & SHMEM_EEE_LPI_REQUESTED_BIT) ^
(params->eee_mode & EEE_MODE_ENABLE_LPI)) ||
((eee_status & SHMEM_EEE_REQUESTED_BIT) ^
(params->eee_mode & EEE_MODE_ADV_LPI))) {
DP(NETIF_MSG_LINK,
"EEE mismatch %x vs. %x\n", params->eee_mode,
eee_status);
return LFA_EEE_MISMATCH;
}
/* LFA conditions are met */
return 0;
}
/******************************************************************/
/* EPIO/GPIO section */
/******************************************************************/
static void bnx2x_get_epio(
struct bnx2x *bp, u32 epio_pin, u32 *en)
{
u32 epio_mask, gp_oenable;
*en = 0;
/* Sanity check */
if (epio_pin > 31) {
DP(NETIF_MSG_LINK,
"Invalid EPIO pin %d to get\n", epio_pin);
return;
}
epio_mask = 1 << epio_pin;
/* Set this EPIO to output */
gp_oenable = REG_RD(bp, MCP_REG_MCPR_GP_OENABLE);
REG_WR(bp, MCP_REG_MCPR_GP_OENABLE, gp_oenable & ~epio_mask);
*en = (REG_RD(bp, MCP_REG_MCPR_GP_INPUTS) & epio_mask) >> epio_pin;
}
static void bnx2x_set_epio(
struct bnx2x *bp, u32 epio_pin, u32 en)
{
u32 epio_mask, gp_output, gp_oenable;
/* Sanity check */
if (epio_pin > 31) {
DP(NETIF_MSG_LINK,
"Invalid EPIO pin %d to set\n", epio_pin);
return;
}
DP(NETIF_MSG_LINK,
"Setting EPIO pin %d to %d\n", epio_pin, en);
epio_mask = 1 << epio_pin;
/* Set this EPIO to output */
gp_output = REG_RD(bp, MCP_REG_MCPR_GP_OUTPUTS);
if (en)
gp_output |= epio_mask;
else
gp_output &= ~epio_mask;
REG_WR(bp, MCP_REG_MCPR_GP_OUTPUTS, gp_output);
/* Set the value for this EPIO */
gp_oenable = REG_RD(bp, MCP_REG_MCPR_GP_OENABLE);
REG_WR(bp, MCP_REG_MCPR_GP_OENABLE, gp_oenable | epio_mask);
}
static void bnx2x_set_cfg_pin(
struct bnx2x *bp, u32 pin_cfg, u32 val)
{
if (pin_cfg == PIN_CFG_NA)
return;
if (pin_cfg >= PIN_CFG_EPIO0) {
bnx2x_set_epio(bp, pin_cfg - PIN_CFG_EPIO0, val);
}
else {
u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
bnx2x_set_gpio(bp, gpio_num, (u8)val, gpio_port);
}
}
static u32 bnx2x_get_cfg_pin(
struct bnx2x *bp, u32 pin_cfg, u32 *val)
{
if (pin_cfg == PIN_CFG_NA)
return -EINVAL;
if (pin_cfg >= PIN_CFG_EPIO0) {
bnx2x_get_epio(bp, pin_cfg - PIN_CFG_EPIO0, val);
}
else {
u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
*val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
}
return 0;
}
/******************************************************************/
/* ETS section */
/******************************************************************/
static void bnx2x_ets_e2e3a0_disabled(
struct link_params *params)
{
/* ETS disabled configuration*/
struct bnx2x *bp = params->bp;
DP(NETIF_MSG_LINK,
"ETS E2E3 disabled configuration\n");
/* mapping between entry priority to client number (0,1,2 -debug and
* management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
* 3bits client num.
* PRI4 | PRI3 | PRI2 | PRI1 | PRI0
* cos1-100 cos0-011 dbg1-010 dbg0-001 MCP-000
*/
REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, 0x4688);
/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
* as strict. Bits 0,1,2 - debug and management entries, 3 -
* COS0 entry, 4 - COS1 entry.
* COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
* bit4 bit3 bit2 bit1 bit0
* MCP and debug are strict
*/
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
/* defines which entries (clients) are subjected to WFQ arbitration */
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
/* For strict priority entries defines the number of consecutive
* slots for the highest priority.
*/
REG_WR(bp, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
/* mapping between the CREDIT_WEIGHT registers and actual client
* numbers
*/
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, 0);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, 0);
REG_WR(bp, PBF_REG_HIGH_PRIORITY_COS_NUM, 0);
/* ETS mode disable */
REG_WR(bp, PBF_REG_ETS_ENABLED, 0);
/* If ETS mode is enabled (there is no strict priority) defines a WFQ
* weight for COS0/COS1.
*/
REG_WR(bp, PBF_REG_COS0_WEIGHT, 0x2710);
REG_WR(bp, PBF_REG_COS1_WEIGHT, 0x2710);
/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter */
REG_WR(bp, PBF_REG_COS0_UPPER_BOUND, 0x989680);
REG_WR(bp, PBF_REG_COS1_UPPER_BOUND, 0x989680);
/* Defines the number of consecutive slots for the strict priority */
REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
}
/******************************************************************************
* Description:
* Getting min_w_val will be set according to line speed .
*.
******************************************************************************/
static u32 bnx2x_ets_get_min_w_val_nig(
const struct link_vars *vars)
{
u32 min_w_val = 0;
/* Calculate min_w_val.*/
if (vars->link_up) {
if (vars->line_speed == SPEED_20000)
min_w_val = ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
else
min_w_val = ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS;
}
else
min_w_val = ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
/* If the link isn't up (static configuration for example ) The
* link will be according to 20GBPS.
*/
return min_w_val;
}
/******************************************************************************
* Description:
* Getting credit upper bound form min_w_val.
*.
******************************************************************************/
static u32 bnx2x_ets_get_credit_upper_bound(
const u32 min_w_val)
{
const u32 credit_upper_bound = (u32)MAXVAL((150 * min_w_val),
MAX_PACKET_SIZE);
return credit_upper_bound;
}
/******************************************************************************
* Description:
* Set credit upper bound for NIG.
*.
******************************************************************************/
static void bnx2x_ets_e3b0_set_credit_upper_bound_nig(
const struct link_params *params,
const u32 min_w_val)
{
struct bnx2x *bp = params->bp;
const u8 port = params->port;
const u32 credit_upper_bound =
bnx2x_ets_get_credit_upper_bound(min_w_val);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_0 :
NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, credit_upper_bound);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_1 :
NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, credit_upper_bound);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_2 :
NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_2, credit_upper_bound);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_3 :
NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_3, credit_upper_bound);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_4 :
NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_4, credit_upper_bound);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_5 :
NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_5, credit_upper_bound);
if (!port) {
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_6,
credit_upper_bound);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_7,
credit_upper_bound);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_8,
credit_upper_bound);
}
}
/******************************************************************************
* Description:
* Will return the NIG ETS registers to init values.Except
* credit_upper_bound.
* That isn't used in this configuration (No WFQ is enabled) and will be
* configured according to spec
*.
******************************************************************************/
static void bnx2x_ets_e3b0_nig_disabled(
const struct link_params *params,
const struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
const u8 port = params->port;
const u32 min_w_val = bnx2x_ets_get_min_w_val_nig(vars);
/* Mapping between entry priority to client number (0,1,2 -debug and
* management clients, 3 - COS0 client, 4 - COS1, ... 8 -
* COS5)(HIGHEST) 4bits client num.TODO_ETS - Should be done by
* reset value or init tool
*/
if (port) {
REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB, 0x543210);
REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_MSB, 0x0);
}
else {
REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB, 0x76543210);
REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB, 0x8);
}
/* For strict priority entries defines the number of consecutive
* slots for the highest priority.
*/
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS :
NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
/* Mapping between the CREDIT_WEIGHT registers and actual client
* numbers
*/
if (port) {
/*Port 1 has 6 COS*/
REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_LSB, 0x210543);
REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x0);
}
else {
/*Port 0 has 9 COS*/
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_LSB,
0x43210876);
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x5);
}
/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
* as strict. Bits 0,1,2 - debug and management entries, 3 -
* COS0 entry, 4 - COS1 entry.
* COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
* bit4 bit3 bit2 bit1 bit0
* MCP and debug are strict
*/
if (port)
REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT, 0x3f);
else
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1ff);
/* defines which entries (clients) are subjected to WFQ arbitration */
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
/* Please notice the register address are note continuous and a
* for here is note appropriate.In 2 port mode port0 only COS0-5
* can be used. DEBUG1,DEBUG1,MGMT are never used for WFQ* In 4
* port mode port1 only COS0-2 can be used. DEBUG1,DEBUG1,MGMT
* are never used for WFQ
*/
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0x0);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0x0);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2, 0x0);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_3 :
NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3, 0x0);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_4 :
NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4, 0x0);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_5 :
NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5, 0x0);
if (!port) {
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_6, 0x0);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_7, 0x0);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_8, 0x0);
}
bnx2x_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val);
}
/******************************************************************************
* Description:
* Set credit upper bound for PBF.
*.
******************************************************************************/
static void bnx2x_ets_e3b0_set_credit_upper_bound_pbf(
const struct link_params *params,
const u32 min_w_val)
{
struct bnx2x *bp = params->bp;
const u32 credit_upper_bound =
bnx2x_ets_get_credit_upper_bound(min_w_val);
const u8 port = params->port;
u32 base_upper_bound = 0;
u8 max_cos = 0;
u8 i = 0;
/* In 2 port mode port0 has COS0-5 that can be used for WFQ.In 4
* port mode port1 has COS0-2 that can be used for WFQ.
*/
if (!port) {
base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P0;
max_cos = DCBX_E3B0_MAX_NUM_COS_PORT0;
}
else {
base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P1;
max_cos = DCBX_E3B0_MAX_NUM_COS_PORT1;
}
for (i = 0; i < max_cos; i++)
REG_WR(bp, base_upper_bound + (i << 2), credit_upper_bound);
}
/******************************************************************************
* Description:
* Will return the PBF ETS registers to init values.Except
* credit_upper_bound.
* That isn't used in this configuration (No WFQ is enabled) and will be
* configured according to spec
*.
******************************************************************************/
static void bnx2x_ets_e3b0_pbf_disabled(
const struct link_params *params)
{
struct bnx2x *bp = params->bp;
const u8 port = params->port;
const u32 min_w_val_pbf = ETS_E3B0_PBF_MIN_W_VAL;
u8 i = 0;
u32 base_weight = 0;
u8 max_cos = 0;
/* Mapping between entry priority to client number 0 - COS0
* client, 2 - COS1, ... 5 - COS5)(HIGHEST) 4bits client num.
* TODO_ETS - Should be done by reset value or init tool
*/
if (port)
/* 0x688 (|011|0 10|00 1|000) */
REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , 0x688);
else
/* (10 1|100 |011|0 10|00 1|000) */
REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , 0x2C688);
/* TODO_ETS - Should be done by reset value or init tool */
if (port)
/* 0x688 (|011|0 10|00 1|000)*/
REG_WR(bp, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P1, 0x688);
else
/* 0x2C688 (10 1|100 |011|0 10|00 1|000) */
REG_WR(bp, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P0, 0x2C688);
REG_WR(bp, (port) ? PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P1 :
PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P0 , 0x100);
REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , 0);
REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0 , 0);
/* In 2 port mode port0 has COS0-5 that can be used for WFQ.
* In 4 port mode port1 has COS0-2 that can be used for WFQ.
*/
if (!port) {
base_weight = PBF_REG_COS0_WEIGHT_P0;
max_cos = DCBX_E3B0_MAX_NUM_COS_PORT0;
}
else {
base_weight = PBF_REG_COS0_WEIGHT_P1;
max_cos = DCBX_E3B0_MAX_NUM_COS_PORT1;
}
for (i = 0; i < max_cos; i++)
REG_WR(bp, base_weight + (0x4 * i), 0);
bnx2x_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
}
/******************************************************************************
* Description:
* E3B0 disable will return basically the values to init values.
*.
******************************************************************************/
static int bnx2x_ets_e3b0_disabled(
const struct link_params *params,
const struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
if (!CHIP_IS_E3B0(bp)) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_e3b0_disabled the chip isn't E3B0\n");
return -EINVAL;
}
bnx2x_ets_e3b0_nig_disabled(params, vars);
bnx2x_ets_e3b0_pbf_disabled(params);
return 0;
}
/******************************************************************************
* Description:
* Disable will return basically the values to init values.
*
******************************************************************************/
int bnx2x_ets_disabled(
struct link_params *params,
struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
int bnx2x_status = 0;
if ((CHIP_IS_E2(bp)) || (CHIP_IS_E3A0(bp)))
bnx2x_ets_e2e3a0_disabled(params);
else if (CHIP_IS_E3B0(bp))
bnx2x_status = bnx2x_ets_e3b0_disabled(params, vars);
else {
DP(NETIF_MSG_LINK,
"bnx2x_ets_disabled - chip not supported\n");
return -EINVAL;
}
return bnx2x_status;
}
/******************************************************************************
* Description
* Set the COS mappimg to SP and BW until this point all the COS are not
* set as SP or BW.
******************************************************************************/
static int bnx2x_ets_e3b0_cli_map(
const struct link_params *params,
const struct bnx2x_ets_params *ets_params,
const u8 cos_sp_bitmap,
const u8 cos_bw_bitmap)
{
struct bnx2x *bp = params->bp;
const u8 port = params->port;
const u8 nig_cli_sp_bitmap = 0x7 | (cos_sp_bitmap << 3);
const u8 pbf_cli_sp_bitmap = cos_sp_bitmap;
const u8 nig_cli_subject2wfq_bitmap = cos_bw_bitmap << 3;
const u8 pbf_cli_subject2wfq_bitmap = cos_bw_bitmap;
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT :
NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, nig_cli_sp_bitmap);
REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , pbf_cli_sp_bitmap);
REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ,
nig_cli_subject2wfq_bitmap);
REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0,
pbf_cli_subject2wfq_bitmap);
return 0;
}
/******************************************************************************
* Description:
* This function is needed because NIG ARB_CREDIT_WEIGHT_X are
* not continues and ARB_CREDIT_WEIGHT_0 + offset is suitable.
******************************************************************************/
static int bnx2x_ets_e3b0_set_cos_bw(
struct bnx2x *bp,
const u8 cos_entry,
const u32 min_w_val_nig,
const u32 min_w_val_pbf,
const u16 total_bw,
const u8 bw,
const u8 port)
{
u32 nig_reg_adress_crd_weight = 0;
u32 pbf_reg_adress_crd_weight = 0;
/* Calculate and set BW for this COS - use 1 instead of 0 for BW */
const u32 cos_bw_nig = ((bw ? bw : 1) * min_w_val_nig) / total_bw;
const u32 cos_bw_pbf = ((bw ? bw : 1) * min_w_val_pbf) / total_bw;
switch (cos_entry) {
case 0:
nig_reg_adress_crd_weight =
(port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0;
pbf_reg_adress_crd_weight = (port) ?
PBF_REG_COS0_WEIGHT_P1 : PBF_REG_COS0_WEIGHT_P0;
break;
case 1:
nig_reg_adress_crd_weight = (port) ?
NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1;
pbf_reg_adress_crd_weight = (port) ?
PBF_REG_COS1_WEIGHT_P1 : PBF_REG_COS1_WEIGHT_P0;
break;
case 2:
nig_reg_adress_crd_weight = (port) ?
NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2;
pbf_reg_adress_crd_weight = (port) ?
PBF_REG_COS2_WEIGHT_P1 : PBF_REG_COS2_WEIGHT_P0;
break;
case 3:
if (port)
return -EINVAL;
nig_reg_adress_crd_weight = NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3;
pbf_reg_adress_crd_weight = PBF_REG_COS3_WEIGHT_P0;
break;
case 4:
if (port)
return -EINVAL;
nig_reg_adress_crd_weight = NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4;
pbf_reg_adress_crd_weight = PBF_REG_COS4_WEIGHT_P0;
break;
case 5:
if (port)
return -EINVAL;
nig_reg_adress_crd_weight = NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5;
pbf_reg_adress_crd_weight = PBF_REG_COS5_WEIGHT_P0;
break;
}
REG_WR(bp, nig_reg_adress_crd_weight, cos_bw_nig);
REG_WR(bp, pbf_reg_adress_crd_weight, cos_bw_pbf);
return 0;
}
/******************************************************************************
* Description:
* Calculate the total BW.A value of 0 isn't legal.
*
******************************************************************************/
static int bnx2x_ets_e3b0_get_total_bw(
const struct link_params *params,
struct bnx2x_ets_params *ets_params,
u16 *total_bw)
{
struct bnx2x *bp = params->bp;
u8 cos_idx = 0;
u8 is_bw_cos_exist = 0;
*total_bw = 0 ;
/* Calculate total BW requested */
for (cos_idx = 0; cos_idx < ets_params->num_of_cos; cos_idx++) {
if (ets_params->cos[cos_idx].state == bnx2x_cos_state_bw) {
is_bw_cos_exist = 1;
if (!ets_params->cos[cos_idx].params.bw_params.bw) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_E3B0_config BW"
"was set to 0\n");
/* This is to prevent a state when ramrods
* can't be sent
*/
ets_params->cos[cos_idx].params.bw_params.bw
= 1;
}
*total_bw +=
ets_params->cos[cos_idx].params.bw_params.bw;
}
}
/* Check total BW is valid */
if ((is_bw_cos_exist == 1) && (*total_bw != 100)) {
if (*total_bw == 0) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_E3B0_config total BW shouldn't be 0\n");
return -EINVAL;
}
DP(NETIF_MSG_LINK,
"bnx2x_ets_E3B0_config total BW should be 100\n");
/* We can handle a case whre the BW isn't 100 this can happen
* if the TC are joined.
*/
}
return 0;
}
/******************************************************************************
* Description:
* Invalidate all the sp_pri_to_cos.
*
******************************************************************************/
static void bnx2x_ets_e3b0_sp_pri_to_cos_init(u8 *sp_pri_to_cos)
{
u8 pri = 0;
for (pri = 0; pri < DCBX_MAX_NUM_COS; pri++)
sp_pri_to_cos[pri] = DCBX_INVALID_COS;
}
/******************************************************************************
* Description:
* Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
* according to sp_pri_to_cos.
*
******************************************************************************/
static int bnx2x_ets_e3b0_sp_pri_to_cos_set(
const struct link_params *params,
u8 *sp_pri_to_cos,
const u8 pri,
const u8 cos_entry)
{
struct bnx2x *bp = params->bp;
const u8 port = params->port;
const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
DCBX_E3B0_MAX_NUM_COS_PORT0;
if (pri >= max_num_of_cos) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_e3b0_sp_pri_to_cos_set invalid "
"parameter Illegal strict priority\n");
return -EINVAL;
}
if (sp_pri_to_cos[pri] != DCBX_INVALID_COS) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_e3b0_sp_pri_to_cos_set invalid "
"parameter There can't be two COS's with "
"the same strict pri\n");
return -EINVAL;
}
sp_pri_to_cos[pri] = cos_entry;
return 0;
}
/******************************************************************************
* Description:
* Returns the correct value according to COS and priority in
* the sp_pri_cli register.
*
******************************************************************************/
static u64 bnx2x_e3b0_sp_get_pri_cli_reg(
const u8 cos,
const u8 cos_offset,
const u8 pri_set,
const u8 pri_offset,
const u8 entry_size)
{
u64 pri_cli_nig = 0;
pri_cli_nig = ((u64)(cos + cos_offset)) << (entry_size *
(pri_set + pri_offset));
return pri_cli_nig;
}
/******************************************************************************
* Description:
* Returns the correct value according to COS and priority in the
* sp_pri_cli register for NIG.
*
******************************************************************************/
static u64 bnx2x_e3b0_sp_get_pri_cli_reg_nig(
const u8 cos,
const u8 pri_set)
{
/* MCP Dbg0 and dbg1 are always with higher strict pri*/
const u8 nig_cos_offset = 3;
const u8 nig_pri_offset = 3;
return bnx2x_e3b0_sp_get_pri_cli_reg(cos, nig_cos_offset, pri_set,
nig_pri_offset, 4);
}
/******************************************************************************
* Description:
* Returns the correct value according to COS and priority in the
* sp_pri_cli register for PBF.
*
******************************************************************************/
static u64 bnx2x_e3b0_sp_get_pri_cli_reg_pbf(
const u8 cos,
const u8 pri_set)
{
const u8 pbf_cos_offset = 0;
const u8 pbf_pri_offset = 0;
return bnx2x_e3b0_sp_get_pri_cli_reg(cos, pbf_cos_offset, pri_set,
pbf_pri_offset, 3);
}
/******************************************************************************
* Description:
* Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
* according to sp_pri_to_cos.(which COS has higher priority)
*
******************************************************************************/
static int bnx2x_ets_e3b0_sp_set_pri_cli_reg(
const struct link_params *params,
u8 *sp_pri_to_cos)
{
struct bnx2x *bp = params->bp;
u8 i = 0;
const u8 port = params->port;
/* MCP Dbg0 and dbg1 are always with higher strict pri*/
u64 pri_cli_nig = 0x210;
u32 pri_cli_pbf = 0x0;
u8 pri_set = 0;
u8 pri_bitmask = 0;
const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
DCBX_E3B0_MAX_NUM_COS_PORT0;
u8 cos_bit_to_set = (1 << max_num_of_cos) - 1;
/* Set all the strict priority first */
for (i = 0; i < max_num_of_cos; i++) {
if (sp_pri_to_cos[i] != DCBX_INVALID_COS) {
if (sp_pri_to_cos[i] >= DCBX_MAX_NUM_COS) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_e3b0_sp_set_pri_cli_reg "
"invalid cos entry\n");
return -EINVAL;
}
pri_cli_nig |= bnx2x_e3b0_sp_get_pri_cli_reg_nig(
sp_pri_to_cos[i], pri_set);
pri_cli_pbf |= bnx2x_e3b0_sp_get_pri_cli_reg_pbf(
sp_pri_to_cos[i], pri_set);
pri_bitmask = 1 << sp_pri_to_cos[i];
/* COS is used remove it from bitmap.*/
if (!(pri_bitmask & cos_bit_to_set)) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_e3b0_sp_set_pri_cli_reg "
"invalid There can't be two COS's with"
" the same strict pri\n");
return -EINVAL;
}
cos_bit_to_set &= ~pri_bitmask;
pri_set++;
}
}
/* Set all the Non strict priority i= COS*/
for (i = 0; i < max_num_of_cos; i++) {
pri_bitmask = 1 << i;
/* Check if COS was already used for SP */
if (pri_bitmask & cos_bit_to_set) {
/* COS wasn't used for SP */
pri_cli_nig |= bnx2x_e3b0_sp_get_pri_cli_reg_nig(
i, pri_set);
pri_cli_pbf |= bnx2x_e3b0_sp_get_pri_cli_reg_pbf(
i, pri_set);
/* COS is used remove it from bitmap.*/
cos_bit_to_set &= ~pri_bitmask;
pri_set++;
}
}
if (pri_set != max_num_of_cos) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_e3b0_sp_set_pri_cli_reg not all "
"entries were set\n");
return -EINVAL;
}
if (port) {
/* Only 6 usable clients*/
REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB,
(u32)pri_cli_nig);
REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , pri_cli_pbf);
}
else {
/* Only 9 usable clients*/
const u32 pri_cli_nig_lsb = (u32) (pri_cli_nig);
const u32 pri_cli_nig_msb = (u32) ((pri_cli_nig >> 32) & 0xF);
REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB,
pri_cli_nig_lsb);
REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB,
pri_cli_nig_msb);
REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , pri_cli_pbf);
}
return 0;
}
/******************************************************************************
* Description:
* Configure the COS to ETS according to BW and SP settings.
******************************************************************************/
int bnx2x_ets_e3b0_config(
const struct link_params *params,
const struct link_vars *vars,
struct bnx2x_ets_params *ets_params)
{
struct bnx2x *bp = params->bp;
int bnx2x_status = 0;
const u8 port = params->port;
u16 total_bw = 0;
const u32 min_w_val_nig = bnx2x_ets_get_min_w_val_nig(vars);
const u32 min_w_val_pbf = ETS_E3B0_PBF_MIN_W_VAL;
u8 cos_bw_bitmap = 0;
u8 cos_sp_bitmap = 0;
u8 sp_pri_to_cos[DCBX_MAX_NUM_COS] = {0};
const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
DCBX_E3B0_MAX_NUM_COS_PORT0;
u8 cos_entry = 0;
if (!CHIP_IS_E3B0(bp)) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_e3b0_disabled the chip isn't E3B0\n");
return -EINVAL;
}
if ((ets_params->num_of_cos > max_num_of_cos)) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_E3B0_config the number of COS "
"isn't supported\n");
return -EINVAL;
}
/* Prepare sp strict priority parameters*/
bnx2x_ets_e3b0_sp_pri_to_cos_init(sp_pri_to_cos);
/* Prepare BW parameters*/
bnx2x_status = bnx2x_ets_e3b0_get_total_bw(params, ets_params,
&total_bw);
if (bnx2x_status) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_E3B0_config get_total_bw failed\n");
return -EINVAL;
}
/* Upper bound is set according to current link speed (min_w_val
* should be the same for upper bound and COS credit val).
*/
bnx2x_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val_nig);
bnx2x_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
for (cos_entry = 0; cos_entry < ets_params->num_of_cos; cos_entry++) {
if (bnx2x_cos_state_bw == ets_params->cos[cos_entry].state) {
cos_bw_bitmap |= (1 << cos_entry);
/* The function also sets the BW in HW(not the mappin
* yet)
*/
bnx2x_status = bnx2x_ets_e3b0_set_cos_bw(
bp, cos_entry, min_w_val_nig, min_w_val_pbf,
total_bw,
ets_params->cos[cos_entry].params.bw_params.bw,
port);
}
else if (bnx2x_cos_state_strict ==
ets_params->cos[cos_entry].state){
cos_sp_bitmap |= (1 << cos_entry);
bnx2x_status = bnx2x_ets_e3b0_sp_pri_to_cos_set(
params,
sp_pri_to_cos,
ets_params->cos[cos_entry].params.sp_params.pri,
cos_entry);
}
else {
DP(NETIF_MSG_LINK,
"bnx2x_ets_e3b0_config cos state not valid\n");
return -EINVAL;
}
if (bnx2x_status) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_e3b0_config set cos bw failed\n");
return bnx2x_status;
}
}
/* Set SP register (which COS has higher priority) */
bnx2x_status = bnx2x_ets_e3b0_sp_set_pri_cli_reg(params,
sp_pri_to_cos);
if (bnx2x_status) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_E3B0_config set_pri_cli_reg failed\n");
return bnx2x_status;
}
/* Set client mapping of BW and strict */
bnx2x_status = bnx2x_ets_e3b0_cli_map(params, ets_params,
cos_sp_bitmap,
cos_bw_bitmap);
if (bnx2x_status) {
DP(NETIF_MSG_LINK,
"bnx2x_ets_E3B0_config SP failed\n");
return bnx2x_status;
}
return 0;
}
static void bnx2x_ets_bw_limit_common(
const struct link_params *params)
{
/* ETS disabled configuration */
struct bnx2x *bp = params->bp;
DP(NETIF_MSG_LINK,
"ETS enabled BW limit configuration\n");
/* Defines which entries (clients) are subjected to WFQ arbitration
* COS0 0x8
* COS1 0x10
*/
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0x18);
/* Mapping between the ARB_CREDIT_WEIGHT registers and actual
* client numbers (WEIGHT_0 does not actually have to represent
* client 0)
* PRI4 | PRI3 | PRI2 | PRI1 | PRI0
* cos1-001 cos0-000 dbg1-100 dbg0-011 MCP-010
*/
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0x111A);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0,
ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1,
ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
/* ETS mode enabled*/
REG_WR(bp, PBF_REG_ETS_ENABLED, 1);
/* Defines the number of consecutive slots for the strict priority */
REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
* as strict. Bits 0,1,2 - debug and management entries, 3 - COS0
* entry, 4 - COS1 entry.
* COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
* bit4 bit3 bit2 bit1 bit0
* MCP and debug are strict
*/
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter.*/
REG_WR(bp, PBF_REG_COS0_UPPER_BOUND,
ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
REG_WR(bp, PBF_REG_COS1_UPPER_BOUND,
ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
}
void bnx2x_ets_bw_limit(
const struct link_params *params,
const u32 cos0_bw,
const u32 cos1_bw)
{
/* ETS disabled configuration*/
struct bnx2x *bp = params->bp;
const u32 total_bw = cos0_bw + cos1_bw;
u32 cos0_credit_weight = 0;
u32 cos1_credit_weight = 0;
DP(NETIF_MSG_LINK,
"ETS enabled BW limit configuration\n");
if ((!total_bw) ||
(!cos0_bw) ||
(!cos1_bw)) {
DP(NETIF_MSG_LINK,
"Total BW can't be zero\n");
return;
}
cos0_credit_weight = (cos0_bw * ETS_BW_LIMIT_CREDIT_WEIGHT)/
total_bw;
cos1_credit_weight = (cos1_bw * ETS_BW_LIMIT_CREDIT_WEIGHT)/
total_bw;
bnx2x_ets_bw_limit_common(params);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, cos0_credit_weight);
REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, cos1_credit_weight);
REG_WR(bp, PBF_REG_COS0_WEIGHT, cos0_credit_weight);
REG_WR(bp, PBF_REG_COS1_WEIGHT, cos1_credit_weight);
}
int bnx2x_ets_strict(
const struct link_params *params,
const u8 strict_cos)
{
/* ETS disabled configuration*/
struct bnx2x *bp = params->bp;
u32 val = 0;
DP(NETIF_MSG_LINK,
"ETS enabled strict configuration\n");
/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
* as strict. Bits 0,1,2 - debug and management entries,
* 3 - COS0 entry, 4 - COS1 entry.
* COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
* bit4 bit3 bit2 bit1 bit0
* MCP and debug are strict
*/
REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1F);
/* For strict priority entries defines the number of consecutive slots
* for the highest priority.
*/
REG_WR(bp, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
/* ETS mode disable */
REG_WR(bp, PBF_REG_ETS_ENABLED, 0);
/* Defines the number of consecutive slots for the strict priority */
REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0x100);
/* Defines the number of consecutive slots for the strict priority */
REG_WR(bp, PBF_REG_HIGH_PRIORITY_COS_NUM, strict_cos);
/* Mapping between entry priority to client number (0,1,2 -debug and
* management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
* 3bits client num.
* PRI4 | PRI3 | PRI2 | PRI1 | PRI0
* dbg0-010 dbg1-001 cos1-100 cos0-011 MCP-000
* dbg0-010 dbg1-001 cos0-011 cos1-100 MCP-000
*/
val = (!strict_cos) ? 0x2318 : 0x22E0;
REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, val);
return 0;
}
/******************************************************************/
/* PFC section */
/******************************************************************/
static void bnx2x_update_pfc_xmac(
struct link_params *params,
struct link_vars *vars,
u8 is_lb)
{
struct bnx2x *bp = params->bp;
u32 xmac_base;
u32 pause_val, pfc0_val, pfc1_val;
/* XMAC base adrr */
xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
/* Initialize pause and pfc registers */
pause_val = 0x18000;
pfc0_val = 0xFFFF8000;
pfc1_val = 0x2;
/* No PFC support */
if (!(params->feature_config_flags &
FEATURE_CONFIG_PFC_ENABLED)) {
/* RX flow control - Process pause frame in receive direction
*/
if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
pause_val |= XMAC_PAUSE_CTRL_REG_RX_PAUSE_EN;
/* TX flow control - Send pause packet when buffer is full */
if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
pause_val |= XMAC_PAUSE_CTRL_REG_TX_PAUSE_EN;
}
else {
/* PFC support */
pfc1_val |= XMAC_PFC_CTRL_HI_REG_PFC_REFRESH_EN |
XMAC_PFC_CTRL_HI_REG_PFC_STATS_EN |
XMAC_PFC_CTRL_HI_REG_RX_PFC_EN |
XMAC_PFC_CTRL_HI_REG_TX_PFC_EN |
XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON;
/* Write pause and PFC registers */
REG_WR(bp, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val);
REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val);
REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val);
pfc1_val &= ~XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON;
}
/* Write pause and PFC registers */
REG_WR(bp, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val);
REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val);
REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val);
/* Set MAC address for source TX Pause/PFC frames */
REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_LO,
((params->mac_addr[2] << 24) |
(params->mac_addr[3] << 16) |
(params->mac_addr[4] << 8) |
(params->mac_addr[5])));
REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_HI,
((params->mac_addr[0] << 8) |
(params->mac_addr[1])));
udelay(30);
}
/******************************************************************/
/* MAC/PBF section */
/******************************************************************/
static void bnx2x_set_mdio_clk(
struct bnx2x *bp, u32 chip_id,
u32 emac_base)
{
u32 new_mode, cur_mode;
u32 clc_cnt;
/* Set clause 45 mode, slow down the MDIO clock to 2.5MHz
* (a value of 49==0x31) and make sure that the AUTO poll is off
*/
cur_mode = REG_RD(bp, emac_base + EMAC_REG_EMAC_MDIO_MODE);
if (USES_WARPCORE(bp))
clc_cnt = 74L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT;
else
clc_cnt = 49L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT;
if (((cur_mode & EMAC_MDIO_MODE_CLOCK_CNT) == clc_cnt) &&
(cur_mode & (EMAC_MDIO_MODE_CLAUSE_45)))
return;
new_mode = cur_mode &
~(EMAC_MDIO_MODE_AUTO_POLL | EMAC_MDIO_MODE_CLOCK_CNT);
new_mode |= clc_cnt;
new_mode |= (EMAC_MDIO_MODE_CLAUSE_45);
DP(NETIF_MSG_LINK,
"Changing emac_mode from 0x%x to 0x%x\n",
cur_mode, new_mode);
REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_MODE, new_mode);
udelay(40);
}
static void bnx2x_set_mdio_emac_per_phy(
struct bnx2x *bp,
struct link_params *params)
{
u8 phy_index;
/* Set mdio clock per phy */
for (phy_index = INT_PHY; phy_index < params->num_phys;
phy_index++)
bnx2x_set_mdio_clk(bp, params->chip_id,
params->phy[phy_index].mdio_ctrl);
}
static u8 bnx2x_is_4_port_mode(
struct bnx2x *bp)
{
u32 port4mode_ovwr_val;
/* Check 4-port override enabled */
port4mode_ovwr_val = REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR);
if (port4mode_ovwr_val & (1<<0)) {
/* Return 4-port mode override value */
return ((port4mode_ovwr_val & (1<<1)) == (1<<1));
}
/* Return 4-port mode from input pin */
return (u8)REG_RD(bp, MISC_REG_PORT4MODE_EN);
}
static void bnx2x_emac_init(
struct link_params *params,
struct link_vars *vars)
{
/* reset and unreset the emac core */
struct bnx2x *bp = params->bp;
u8 port = params->port;
u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
u32 val;
u16 timeout;
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
(MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
udelay(5);
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
(MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
/* init emac - use read-modify-write */
/* self clear reset */
val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
EMAC_WR(bp, EMAC_REG_EMAC_MODE, (val | EMAC_MODE_RESET));
timeout = 200;
do {
val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
DP(NETIF_MSG_LINK,
"EMAC reset reg is %u\n", val);
if (!timeout) {
DP(NETIF_MSG_LINK,
"EMAC timeout!\n");
return;
}
timeout--;
}
while (val & EMAC_MODE_RESET);
bnx2x_set_mdio_emac_per_phy(bp, params);
/* Set mac address */
val = ((params->mac_addr[0] << 8) |
params->mac_addr[1]);
EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH, val);
val = ((params->mac_addr[2] << 24) |
(params->mac_addr[3] << 16) |
(params->mac_addr[4] << 8) |
params->mac_addr[5]);
EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + 4, val);
}
static void bnx2x_set_xumac_nig(
struct link_params *params,
u16 tx_pause_en,
u8 enable)
{
struct bnx2x *bp = params->bp;
REG_WR(bp, params->port ? NIG_REG_P1_MAC_IN_EN : NIG_REG_P0_MAC_IN_EN,
enable);
REG_WR(bp, params->port ? NIG_REG_P1_MAC_OUT_EN : NIG_REG_P0_MAC_OUT_EN,
enable);
REG_WR(bp, params->port ? NIG_REG_P1_MAC_PAUSE_OUT_EN :
NIG_REG_P0_MAC_PAUSE_OUT_EN, tx_pause_en);
}
static void bnx2x_set_umac_rxtx(
struct link_params *params, u8 en)
{
u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
u32 val;
struct bnx2x *bp = params->bp;
if (!(REG_RD(bp, MISC_REG_RESET_REG_2) &
(MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port)))
return;
val = REG_RD(bp, umac_base + UMAC_REG_COMMAND_CONFIG);
if (en)
val |= (UMAC_COMMAND_CONFIG_REG_TX_ENA |
UMAC_COMMAND_CONFIG_REG_RX_ENA);
else
val &= ~(UMAC_COMMAND_CONFIG_REG_TX_ENA |
UMAC_COMMAND_CONFIG_REG_RX_ENA);
/* Disable RX and TX */
REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
}
static void bnx2x_umac_enable(
struct link_params *params,
struct link_vars *vars, u8 lb)
{
u32 val;
u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
struct bnx2x *bp = params->bp;
/* Reset UMAC */
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
(MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
usleep_range(1000, 2000);
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
(MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
DP(NETIF_MSG_LINK,
"enabling UMAC\n");
/* This register opens the gate for the UMAC despite its name */
REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
val = UMAC_COMMAND_CONFIG_REG_PROMIS_EN |
UMAC_COMMAND_CONFIG_REG_PAD_EN |
UMAC_COMMAND_CONFIG_REG_SW_RESET |
UMAC_COMMAND_CONFIG_REG_NO_LGTH_CHECK;
switch (vars->line_speed) {
case SPEED_10:
val |= (0<<2);
break;
case SPEED_100:
val |= (1<<2);
break;
case SPEED_1000:
val |= (2<<2);
break;
case SPEED_2500:
val |= (3<<2);
break;
default:
DP(NETIF_MSG_LINK,
"Invalid speed for UMAC %d\n",
vars->line_speed);
break;
}
if (!(vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
val |= UMAC_COMMAND_CONFIG_REG_IGNORE_TX_PAUSE;
if (!(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
val |= UMAC_COMMAND_CONFIG_REG_PAUSE_IGNORE;
if (vars->duplex == DUPLEX_HALF)
val |= UMAC_COMMAND_CONFIG_REG_HD_ENA;
REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
udelay(50);
/* Configure UMAC for EEE */
if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
DP(NETIF_MSG_LINK,
"configured UMAC for EEE\n");
REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL,
UMAC_UMAC_EEE_CTRL_REG_EEE_EN);
REG_WR(bp, umac_base + UMAC_REG_EEE_WAKE_TIMER, 0x11);
}
else {
REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL, 0x0);
}
/* Set MAC address for source TX Pause/PFC frames (under SW reset) */
REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR0,
((params->mac_addr[2] << 24) |
(params->mac_addr[3] << 16) |
(params->mac_addr[4] << 8) |
(params->mac_addr[5])));
REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR1,
((params->mac_addr[0] << 8) |
(params->mac_addr[1])));
/* Enable RX and TX */
val &= ~UMAC_COMMAND_CONFIG_REG_PAD_EN;
val |= UMAC_COMMAND_CONFIG_REG_TX_ENA |
UMAC_COMMAND_CONFIG_REG_RX_ENA;
REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
udelay(50);
/* Remove SW Reset */
val &= ~UMAC_COMMAND_CONFIG_REG_SW_RESET;
/* Check loopback mode */
if (lb)
val |= UMAC_COMMAND_CONFIG_REG_LOOP_ENA;
REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
/* Maximum Frame Length (RW). Defines a 14-Bit maximum frame
* length used by the MAC receive logic to check frames.
*/
REG_WR(bp, umac_base + UMAC_REG_MAXFR, 0x2710);
bnx2x_set_xumac_nig(params,
((vars->flow_ctrl & BNX2X_FLOW_CTRL_TX) != 0), 1);
vars->mac_type = MAC_TYPE_UMAC;
}
/* Define the XMAC mode */
static void bnx2x_xmac_init(
struct link_params *params, u32 max_speed)
{
struct bnx2x *bp = params->bp;
u32 is_port4mode = bnx2x_is_4_port_mode(bp);
/* In 4-port mode, need to set the mode only once, so if XMAC is
* already out of reset, it means the mode has already been set,
* and it must not* reset the XMAC again, since it controls both
* ports of the path
*/
if (((CHIP_NUM(bp) == CHIP_NUM_57840_4_10) ||
(CHIP_NUM(bp) == CHIP_NUM_57840_2_20) ||
(CHIP_NUM(bp) == CHIP_NUM_57840_OBSOLETE)) &&
is_port4mode &&
(REG_RD(bp, MISC_REG_RESET_REG_2) &
MISC_REGISTERS_RESET_REG_2_XMAC)) {
DP(NETIF_MSG_LINK,
"XMAC already out of reset in 4-port mode\n");
return;
}
/* Hard reset */
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
MISC_REGISTERS_RESET_REG_2_XMAC);
usleep_range(1000, 2000);
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
MISC_REGISTERS_RESET_REG_2_XMAC);
if (is_port4mode) {
DP(NETIF_MSG_LINK,
"Init XMAC to 2 ports x 10G per path\n");
/* Set the number of ports on the system side to up to 2 */
REG_WR(bp, MISC_REG_XMAC_CORE_PORT_MODE, 1);
/* Set the number of ports on the Warp Core to 10G */
REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 3);
}
else {
/* Set the number of ports on the system side to 1 */
REG_WR(bp, MISC_REG_XMAC_CORE_PORT_MODE, 0);
if (max_speed == SPEED_10000) {
DP(NETIF_MSG_LINK,
"Init XMAC to 10G x 1 port per path\n");
/* Set the number of ports on the Warp Core to 10G */
REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 3);
}
else {
DP(NETIF_MSG_LINK,
"Init XMAC to 20G x 2 ports per path\n");
/* Set the number of ports on the Warp Core to 20G */
REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 1);
}
}
/* Soft reset */
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
usleep_range(1000, 2000);
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
}
static void bnx2x_set_xmac_rxtx(
struct link_params *params, u8 en)
{
u8 port = params->port;
struct bnx2x *bp = params->bp;
u32 pfc_ctrl, xmac_base = (port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
u32 val;
if (REG_RD(bp, MISC_REG_RESET_REG_2) &
MISC_REGISTERS_RESET_REG_2_XMAC) {
/* Send an indication to change the state in the NIG back to XON
* Clearing this bit enables the next set of this bit to get
* rising edge
*/
pfc_ctrl = REG_RD(bp, xmac_base + XMAC_REG_PFC_CTRL_HI);
REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI,
(pfc_ctrl & ~(1<<1)));
REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI,
(pfc_ctrl | (1<<1)));
DP(NETIF_MSG_LINK,
"Disable XMAC on port %x\n", port);
val = REG_RD(bp, xmac_base + XMAC_REG_CTRL);
if (en)
val |= (XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
else
val &= ~(XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
REG_WR(bp, xmac_base + XMAC_REG_CTRL, val);
}
}
static int bnx2x_xmac_enable(
struct link_params *params,
struct link_vars *vars, u8 lb)
{
u32 val, xmac_base;
struct bnx2x *bp = params->bp;
DP(NETIF_MSG_LINK,
"enabling XMAC\n");
xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
bnx2x_xmac_init(params, vars->line_speed);
/* This register determines on which events the MAC will assert
* error on the i/f to the NIG along w/ EOP.
*/
/* This register tells the NIG whether to send traffic to UMAC
* or XMAC
*/
REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 0);
/* When XMAC is in XLGMII mode, disable sending idles for fault
* detection.
*/
if (!(params->phy[INT_PHY].flags & FLAGS_TX_ERROR_CHECK)) {
REG_WR(bp, xmac_base + XMAC_REG_RX_LSS_CTRL,
(XMAC_RX_LSS_CTRL_REG_LOCAL_FAULT_DISABLE |
XMAC_RX_LSS_CTRL_REG_REMOTE_FAULT_DISABLE));
REG_WR(bp, xmac_base + XMAC_REG_CLEAR_RX_LSS_STATUS, 0);
REG_WR(bp, xmac_base + XMAC_REG_CLEAR_RX_LSS_STATUS,
XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_LOCAL_FAULT_STATUS |
XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_REMOTE_FAULT_STATUS);
}
/* Set Max packet size */
REG_WR(bp, xmac_base + XMAC_REG_RX_MAX_SIZE, 0x2710);
/* CRC append for Tx packets */
REG_WR(bp, xmac_base + XMAC_REG_TX_CTRL, 0xC800);
/* update PFC */
bnx2x_update_pfc_xmac(params, vars, 0);
if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
DP(NETIF_MSG_LINK,
"Setting XMAC for EEE\n");
REG_WR(bp, xmac_base + XMAC_REG_EEE_TIMERS_HI, 0x1380008);
REG_WR(bp, xmac_base + XMAC_REG_EEE_CTRL, 0x1);
}
else {
REG_WR(bp, xmac_base + XMAC_REG_EEE_CTRL, 0x0);
}
/* Enable TX and RX */
val = XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN;
/* Set MAC in XLGMII mode for dual-mode */
if ((vars->line_speed == SPEED_20000) &&
(params->phy[INT_PHY].supported &
SUPPORTED_20000baseKR2_Full))
val |= XMAC_CTRL_REG_XLGMII_ALIGN_ENB;
/* Check loopback mode */
if (lb)
val |= XMAC_CTRL_REG_LINE_LOCAL_LPBK;
REG_WR(bp, xmac_base + XMAC_REG_CTRL, val);
bnx2x_set_xumac_nig(params,
((vars->flow_ctrl & BNX2X_FLOW_CTRL_TX) != 0), 1);
vars->mac_type = MAC_TYPE_XMAC;
return 0;
}
static int bnx2x_emac_enable(
struct link_params *params,
struct link_vars *vars, u8 lb)
{
struct bnx2x *bp = params->bp;
u8 port = params->port;
u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
u32 val;
DP(NETIF_MSG_LINK,
"enabling EMAC\n");
/* Disable BMAC */
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
(MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
/* enable emac and not bmac */
REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + port*4, 1);
/* ASIC */
if (vars->phy_flags & PHY_XGXS_FLAG) {
u32 ser_lane = ((params->lane_config &
PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
DP(NETIF_MSG_LINK,
"XGXS\n");
/* select the master lanes (out of 0-3) */
REG_WR(bp, NIG_REG_XGXS_LANE_SEL_P0 + port*4, ser_lane);
/* select XGXS */
REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 1);
}
else {
/* SerDes */
DP(NETIF_MSG_LINK,
"SerDes\n");
/* select SerDes */
REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0);
}
bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_RX_MODE,
EMAC_RX_MODE_RESET);
bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
EMAC_TX_MODE_RESET);
/* pause enable/disable */
bnx2x_bits_dis(bp, emac_base + EMAC_REG_EMAC_RX_MODE,
EMAC_RX_MODE_FLOW_EN);
bnx2x_bits_dis(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
(EMAC_TX_MODE_EXT_PAUSE_EN |
EMAC_TX_MODE_FLOW_EN));
if (!(params->feature_config_flags &
FEATURE_CONFIG_PFC_ENABLED)) {
if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
bnx2x_bits_en(bp, emac_base +
EMAC_REG_EMAC_RX_MODE,
EMAC_RX_MODE_FLOW_EN);
if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
bnx2x_bits_en(bp, emac_base +
EMAC_REG_EMAC_TX_MODE,
(EMAC_TX_MODE_EXT_PAUSE_EN |
EMAC_TX_MODE_FLOW_EN));
}
else
bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
EMAC_TX_MODE_FLOW_EN);
/* KEEP_VLAN_TAG, promiscuous */
val = REG_RD(bp, emac_base + EMAC_REG_EMAC_RX_MODE);
val |= EMAC_RX_MODE_KEEP_VLAN_TAG | EMAC_RX_MODE_PROMISCUOUS;
/* Setting this bit causes MAC control frames (except for pause
* frames) to be passed on for processing. This setting has no
* affect on the operation of the pause frames. This bit effects
* all packets regardless of RX Parser packet sorting logic.
* Turn the PFC off to make sure we are in Xon state before
* enabling it.
*/
EMAC_WR(bp, EMAC_REG_RX_PFC_MODE, 0);
if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) {
DP(NETIF_MSG_LINK,
"PFC is enabled\n");
/* Enable PFC again */
EMAC_WR(bp, EMAC_REG_RX_PFC_MODE,
EMAC_REG_RX_PFC_MODE_RX_EN |
EMAC_REG_RX_PFC_MODE_TX_EN |
EMAC_REG_RX_PFC_MODE_PRIORITIES);
EMAC_WR(bp, EMAC_REG_RX_PFC_PARAM,
((0x0101 <<
EMAC_REG_RX_PFC_PARAM_OPCODE_BITSHIFT) |
(0x00ff <<
EMAC_REG_RX_PFC_PARAM_PRIORITY_EN_BITSHIFT)));
val |= EMAC_RX_MODE_KEEP_MAC_CONTROL;
}
EMAC_WR(bp, EMAC_REG_EMAC_RX_MODE, val);
/* Set Loopback */
val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
if (lb)
val |= 0x810;
else
val &= ~0x810;
EMAC_WR(bp, EMAC_REG_EMAC_MODE, val);
/* Enable emac */
REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 1);
/* Enable emac for jumbo packets */
EMAC_WR(bp, EMAC_REG_EMAC_RX_MTU_SIZE,
(EMAC_RX_MTU_SIZE_JUMBO_ENA |
(ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVERHEAD)));
/* Strip CRC */
REG_WR(bp, NIG_REG_NIG_INGRESS_EMAC0_NO_CRC + port*4, 0x1);
/* Disable the NIG in/out to the bmac */
REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0x0);
REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + port*4, 0x0);
REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0x0);
/* Enable the NIG in/out to the emac */
REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0x1);
val = 0;
if ((params->feature_config_flags &
FEATURE_CONFIG_PFC_ENABLED) ||
(vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
val = 1;
REG_WR(bp, NIG_REG_EMAC0_PAUSE_OUT_EN + port*4, val);
REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0x1);
REG_WR(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x0);
vars->mac_type = MAC_TYPE_EMAC;
return 0;
}
static void bnx2x_update_pfc_bmac1(
struct link_params *params,
struct link_vars *vars)
{
u32 wb_data[2];
struct bnx2x *bp = params->bp;
u32 bmac_addr = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
NIG_REG_INGRESS_BMAC0_MEM;
u32 val = 0x14;
if ((!(params->feature_config_flags &
FEATURE_CONFIG_PFC_ENABLED)) &&
(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
/* Enable BigMAC to react on received Pause packets */
val |= (1<<5);
wb_data[0] = val;
wb_data[1] = 0;
REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_CONTROL, wb_data, 2);
/* TX control */
val = 0xc0;
if (!(params->feature_config_flags &
FEATURE_CONFIG_PFC_ENABLED) &&
(vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
val |= 0x800000;
wb_data[0] = val;
wb_data[1] = 0;
REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_CONTROL, wb_data, 2);
}
static void bnx2x_update_pfc_bmac2(
struct link_params *params,
struct link_vars *vars,
u8 is_lb)
{
/* Set rx control: Strip CRC and enable BigMAC to relay
* control packets to the system as well
*/
u32 wb_data[2];
struct bnx2x *bp = params->bp;
u32 bmac_addr = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
NIG_REG_INGRESS_BMAC0_MEM;
u32 val = 0x14;
if ((!(params->feature_config_flags &
FEATURE_CONFIG_PFC_ENABLED)) &&
(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
/* Enable BigMAC to react on received Pause packets */
val |= (1<<5);
wb_data[0] = val;
wb_data[1] = 0;
REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_CONTROL, wb_data, 2);
udelay(30);
/* Tx control */
val = 0xc0;
if (!(params->feature_config_flags &
FEATURE_CONFIG_PFC_ENABLED) &&
--> --------------------
--> maximum size reached
--> --------------------
