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net: wangxun: txgbe: support wangxun 10GbE driver 

add support for Wangxun 10GbE driver, source files and
functions are the same as wangxun out of box drivevr
release version txgbe-1.3.5.1.

Signed-off-by: Duanqiang Wen <duanqiangwen@net-swift.com>
Signed-off-by: Jianping Liu <frankjpliu@tencent.com>
This commit is contained in:
Duanqiang Wen 2024-04-12 14:43:38 +08:00 committed by Jianping Liu
parent cb52153887
commit b38c5bb0b9
37 changed files with 59743 additions and 0 deletions
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14
drivers/net/ethernet/wangxun/Kconfig
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@ -29,4 +29,18 @@ config NGBE
To compile this driver as a module, choose M here. The module
will be called ngbe.
config TXGBE
tristate "Wangxun(R) 10GbE PCI Express adapters support"
depends on PCI
select HWMON if TXGBE=y
help
This driver supports Wangxun(R) 10GbE PCI Express family of
adapters.
More specific information on configuring the driver is in
<file:Documentation/networking/device_drivers/ethernet/wangxun/txgbe.rst>.
To compile this driver as a module, choose M here. The module
will be called txgbe.
endif # NET_VENDOR_WANGXUN

1
drivers/net/ethernet/wangxun/Makefile
View File

@ -4,3 +4,4 @@
#
obj-$(CONFIG_NGBE) += ngbe/
obj-$(CONFIG_TXGBE) += txgbe/

28
drivers/net/ethernet/wangxun/txgbe/Makefile Normal file
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@ -0,0 +1,28 @@
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd.
#
# Makefile for the Wangxun(R) 10GbE PCI Express ethernet driver
#
obj-$(CONFIG_TXGBE) += txgbe.o
txgbe-objs := txgbe_main.o \
txgbe_hw.o \
txgbe_phy.o \
txgbe_ethtool.o \
txgbe_bp.o \
txgbe_dcb_nl.o \
txgbe_dcb.o \
txgbe_debugfs.o \
txgbe_fcoe.o \
txgbe_mbx.o \
txgbe_mtd.o \
txgbe_param.o \
txgbe_ptp.o \
txgbe_procfs.o \
txgbe_sriov.o \
txgbe_sysfs.o \
txgbe_xsk.o \
txgbe_lib.o \
txgbe_pcierr.o \
txgbe_kcompat.o

1523
drivers/net/ethernet/wangxun/txgbe/txgbe.h Normal file
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File diff suppressed because it is too large Load Diff

553
drivers/net/ethernet/wangxun/txgbe/txgbe_bp.c Normal file
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@ -0,0 +1,553 @@
#include "txgbe_bp.h"
void txgbe_bp_close_protect(struct txgbe_adapter *adapter)
{
adapter->flags2 |= TXGBE_FLAG2_KR_PRO_DOWN;
while (adapter->flags2 & TXGBE_FLAG2_KR_PRO_REINIT){
msleep(100);
printk("wait to reinited ok..%x\n",adapter->flags2);
}
}
int txgbe_bp_mode_setting(struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
/*default to open an73*/
adapter->backplane_an = AUTO?1:0;
adapter->an37 = AUTO?1:0;
switch (adapter->backplane_mode) {
case TXGBE_BP_M_KR:
hw->subsystem_device_id = TXGBE_ID_WX1820_KR_KX_KX4;
break;
case TXGBE_BP_M_KX4:
hw->subsystem_device_id = TXGBE_ID_WX1820_MAC_XAUI;
break;
case TXGBE_BP_M_KX:
hw->subsystem_device_id = TXGBE_ID_WX1820_MAC_SGMII;
break;
case TXGBE_BP_M_SFI:
hw->subsystem_device_id = TXGBE_ID_WX1820_SFP;
break;
default:
break;
}
if (adapter->backplane_auto == TXGBE_BP_M_AUTO) {
adapter->backplane_an = 1;
adapter->an37 = 1;
} else if (adapter->backplane_auto == TXGBE_BP_M_NAUTO) {
adapter->backplane_an = 0;
adapter->an37 = 0;
}
if (adapter->ffe_set == 0)
return 0;
if (KR_SET == 1) {
adapter->ffe_main = KR_MAIN;
adapter->ffe_pre = KR_PRE;
adapter->ffe_post = KR_POST;
} else if (!KR_SET && KX4_SET == 1) {
adapter->ffe_main = KX4_MAIN;
adapter->ffe_pre = KX4_PRE;
adapter->ffe_post = KX4_POST;
} else if (!KR_SET && !KX4_SET && KX_SET == 1) {
adapter->ffe_main = KX_MAIN;
adapter->ffe_pre = KX_PRE;
adapter->ffe_post = KX_POST;
} else if (!KR_SET && !KX4_SET && !KX_SET && SFI_SET == 1) {
adapter->ffe_main = SFI_MAIN;
adapter->ffe_pre = SFI_PRE;
adapter->ffe_post = SFI_POST;
}
return 0;
}
void txgbe_bp_watchdog_event(struct txgbe_adapter *adapter)
{
u32 value = 0;
struct txgbe_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
/* only continue if link is down */
if (netif_carrier_ok(netdev))
return;
if (KR_POLLING == 1) {
value = txgbe_rd32_epcs(hw, 0x78002);
value = value & 0x4;
if (value == 0x4) {
e_dev_info("Enter training\n");
handle_bkp_an73_flow(0, adapter);
}
} else {
if(adapter->flags2 & TXGBE_FLAG2_KR_TRAINING){
e_dev_info("Enter training\n");
handle_bkp_an73_flow(0, adapter);
adapter->flags2 &= ~TXGBE_FLAG2_KR_TRAINING;
}
}
}
void txgbe_bp_down_event(struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
u32 val = 0, val1 = 0;
if (adapter->backplane_an == 0)
return;
switch (KR_RESTART_T_MODE) {
case 1:
txgbe_wr32_epcs(hw, TXGBE_VR_AN_KR_MODE_CL, 0x0000);
txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0000);
txgbe_wr32_epcs(hw, 0x78001, 0x0000);
msleep(1000);
txgbe_set_link_to_kr(hw, 1);
break;
case 2:
txgbe_wr32_epcs(hw, TXGBE_VR_AN_KR_MODE_CL, 0x0000);
txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x0000);
txgbe_wr32_epcs(hw, 0x78001, 0x0000);
msleep(1050);
txgbe_wr32_epcs(hw, TXGBE_VR_AN_KR_MODE_CL, 0x0001);
txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x3200);
txgbe_wr32_epcs(hw, 0x78001, 0x0007);
break;
default:
if (AN73_TRAINNING_MODE == 1)
msleep(100);
else
msleep(1000);
val = txgbe_rd32_epcs(hw, 0x78002);
val1 = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_CTL);
if ((val & BIT(2)) == BIT(2)) {
if (!(adapter->flags2 & TXGBE_FLAG2_KR_TRAINING))
adapter->flags2 |= TXGBE_FLAG2_KR_TRAINING;
} else {
txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0);
txgbe_wr32_epcs(hw, 0x78002, 0x0000);
txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0x3000);
}
kr_dbg(KR_MODE, "0x78002 : %x - 0x70000 : %x\n", val, val1);
kr_dbg(KR_MODE, "0x70012 : %x\n", txgbe_rd32_epcs(hw, 0x70012));
break;
}
}
/*Check Ethernet Backplane AN73 Base Page Ability
**return value:
** -1 : none link mode matched, exit
** 0 : current link mode matched, wait AN73 to be completed
** 1 : current link mode not matched, set to matched link mode, re-start AN73 external
*/
int chk_bkp_an73_ability(bkpan73ability tBkpAn73Ability, bkpan73ability tLpBkpAn73Ability,
struct txgbe_adapter *adapter)
{
unsigned int comLinkAbility;
kr_dbg(KR_MODE, "CheckBkpAn73Ability():\n");
kr_dbg(KR_MODE, "------------------------\n");
/*-- Check the common link ability and take action based on the result*/
comLinkAbility = tBkpAn73Ability.linkAbility & tLpBkpAn73Ability.linkAbility;
kr_dbg(KR_MODE, "comLinkAbility= 0x%x, linkAbility= 0x%x, lpLinkAbility= 0x%x\n",
comLinkAbility, tBkpAn73Ability.linkAbility, tLpBkpAn73Ability.linkAbility);
/*only support kr*/
if (comLinkAbility == 0){
kr_dbg(KR_MODE, "WARNING: The Link Partner does not support any compatible speed mode!!!\n\n");
return -1;
} else if (comLinkAbility & 0x80) {
if (tBkpAn73Ability.currentLinkMode == 0){
kr_dbg(KR_MODE, "Link mode is matched with Link Partner: [LINK_KR].\n");
return 0;
} else {
kr_dbg(KR_MODE, "Link mode is not matched with Link Partner: [LINK_KR].\n");
kr_dbg(KR_MODE, "Set the local link mode to [LINK_KR] ...\n");
return 1;
}
}
#if 0
if (comLinkAbility == 0){
kr_dbg(KR_MODE, "WARNING: The Link Partner does not support any compatible speed mode!!!\n\n");
return -1;
} else if (comLinkAbility & 0x80) {
if (tBkpAn73Ability.currentLinkMode == 0){
kr_dbg(KR_MODE, "Link mode is matched with Link Partner: [LINK_KR].\n");
return 0;
}else{
kr_dbg(KR_MODE, "Link mode is not matched with Link Partner: [LINK_KR].\n");
kr_dbg(KR_MODE, "Set the local link mode to [LINK_KR] ...\n");
txgbe_set_link_to_kr(hw, 1);
return 1;
}
} else if (comLinkAbility & 0x40) {
if (tBkpAn73Ability.currentLinkMode == 0x10){
kr_dbg(KR_MODE, "Link mode is matched with Link Partner: [LINK_KX4].\n");
return 0;
} else {
kr_dbg(KR_MODE, "Link mode is not matched with Link Partner: [LINK_KX4].\n");
kr_dbg(KR_MODE, "Set the local link mode to [LINK_KX4] ...\n");
txgbe_set_link_to_kx4(hw, 1);
return 1;
}
} else if (comLinkAbility & 0x20) {
if (tBkpAn73Ability.currentLinkMode == 0x1){
kr_dbg(KR_MODE, "Link mode is matched with Link Partner: [LINK_KX].\n");
return 0;
} else {
kr_dbg(KR_MODE, "Link mode is not matched with Link Partner: [LINK_KX].\n");
kr_dbg(KR_MODE, "Set the local link mode to [LINK_KX] ...\n");
txgbe_set_link_to_kx(hw, 1, 1);
return 1;
}
}
#endif
return 0;
}
/*Get Ethernet Backplane AN73 Base Page Ability
**byLinkPartner:
**- 1: Get Link Partner Base Page
**- 2: Get Link Partner Next Page (only get NXP Ability Register 1 at the moment)
**- 0: Get Local Device Base Page
*/
int get_bkp_an73_ability(bkpan73ability *pt_bkp_an73_ability, unsigned char byLinkPartner,
struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
unsigned int rdata;
int status = 0;
kr_dbg(KR_MODE, "byLinkPartner = %d\n", byLinkPartner);
kr_dbg(KR_MODE, "----------------------------------------\n");
if (byLinkPartner == 1) /*Link Partner Base Page*/
{
/*Read the link partner AN73 Base Page Ability Registers*/
kr_dbg(KR_MODE, "Read the link partner AN73 Base Page Ability Registers...\n");
rdata = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_LP_ABL1);
kr_dbg(KR_MODE, "SR AN MMD LP Base Page Ability Register 1: 0x%x\n", rdata);
pt_bkp_an73_ability->nextPage = (rdata >> 15) & 0x01;
kr_dbg(KR_MODE, " Next Page (bit15): %d\n", pt_bkp_an73_ability->nextPage);
rdata = txgbe_rd32_epcs(hw, 0x70014);
kr_dbg(KR_MODE, "SR AN MMD LP Base Page Ability Register 2: 0x%x\n", rdata);
pt_bkp_an73_ability->linkAbility = rdata & 0xE0;
kr_dbg(KR_MODE, " Link Ability (bit[15:0]): 0x%x\n",
pt_bkp_an73_ability->linkAbility);
kr_dbg(KR_MODE, " (0x20- KX_ONLY, 0x40- KX4_ONLY, 0x60- KX4_KX\n");
kr_dbg(KR_MODE, " 0x80- KR_ONLY, 0xA0- KR_KX, 0xC0- KR_KX4, 0xE0- KR_KX4_KX)\n");
rdata = txgbe_rd32_epcs(hw, 0x70015);
kr_dbg(KR_MODE, "SR AN MMD LP Base Page Ability Register 3: 0x%x\n", rdata);
kr_dbg(KR_MODE, " FEC Request (bit15): %d\n", ((rdata >> 15) & 0x01));
kr_dbg(KR_MODE, " FEC Enable (bit14): %d\n", ((rdata >> 14) & 0x01));
pt_bkp_an73_ability->fecAbility = (rdata >> 14) & 0x03;
} else if (byLinkPartner == 2) {/*Link Partner Next Page*/
/*Read the link partner AN73 Next Page Ability Registers*/
kr_dbg(KR_MODE, "\nRead the link partner AN73 Next Page Ability Registers...\n");
rdata = txgbe_rd32_epcs(hw, 0x70019);
kr_dbg(KR_MODE, " SR AN MMD LP XNP Ability Register 1: 0x%x\n", rdata);
pt_bkp_an73_ability->nextPage = (rdata >> 15) & 0x01;
if (KR_MODE)e_dev_info(" Next Page (bit15): %d\n", pt_bkp_an73_ability->nextPage);
} else {
/*Read the local AN73 Base Page Ability Registers*/
kr_dbg(KR_MODE, "\nRead the local AN73 Base Page Ability Registers...\n");
rdata = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_ADV_REG1);
kr_dbg(KR_MODE, "SR AN MMD Advertisement Register 1: 0x%x\n", rdata);
pt_bkp_an73_ability->nextPage = (rdata >> 15) & 0x01;
kr_dbg(KR_MODE, " Next Page (bit15): %d\n", pt_bkp_an73_ability->nextPage);
rdata = txgbe_rd32_epcs(hw, TXGBE_SR_AN_MMD_ADV_REG2);
kr_dbg(KR_MODE, "SR AN MMD Advertisement Register 2: 0x%x\n", rdata);
pt_bkp_an73_ability->linkAbility = rdata & 0xE0;
kr_dbg(KR_MODE, " Link Ability (bit[15:0]): 0x%x\n",
pt_bkp_an73_ability->linkAbility);
kr_dbg(KR_MODE, " (0x20- KX_ONLY, 0x40- KX4_ONLY, 0x60- KX4_KX\n");
kr_dbg(KR_MODE, " 0x80- KR_ONLY, 0xA0- KR_KX, 0xC0- KR_KX4, 0xE0- KR_KX4_KX)\n");
rdata = txgbe_rd32_epcs(hw, 0x70012);
kr_dbg(KR_MODE, "SR AN MMD Advertisement Register 3: 0x%x\n", rdata);
kr_dbg(KR_MODE, " FEC Request (bit15): %d\n", ((rdata >> 15) & 0x01));
kr_dbg(KR_MODE, " FEC Enable (bit14): %d\n", ((rdata >> 14) & 0x01));
pt_bkp_an73_ability->fecAbility = (rdata >> 14) & 0x03;
} /*if (byLinkPartner == 1) Link Partner Base Page*/
return status;
}
/* DESCRIPTION: Set the source data fields[bitHigh:bitLow] with setValue
** INPUTS: *src_data: Source data pointer
** bitHigh: High bit position of the fields
** bitLow : Low bit position of the fields
** setValue: Set value of the fields
** OUTPUTS: return the updated source data
*/
static void set_fields(
unsigned int *src_data,
unsigned int bitHigh,
unsigned int bitLow,
unsigned int setValue)
{
int i;
if (bitHigh == bitLow) {
if (setValue == 0)
*src_data &= ~(1 << bitLow);
else
*src_data |= (1 << bitLow);
} else {
for (i = bitLow; i <= bitHigh; i++)
*src_data &= ~(1 << i);
*src_data |= (setValue << bitLow);
}
}
/*Clear Ethernet Backplane AN73 Interrupt status
**- intIndexHi =0, only intIndex bit will be cleared
**- intIndexHi !=0, the [intIndexHi, intIndex] range will be cleared
*/
int clr_bkp_an73_int(unsigned int intIndex, unsigned int intIndexHi, struct txgbe_adapter * adapter)
{
struct txgbe_hw *hw = &adapter->hw;
unsigned int rdata, wdata;
int status = 0;
rdata = txgbe_rd32_epcs(hw, 0x78002);
kr_dbg(KR_MODE, "[Before clear] Read VR AN MMD Interrupt Register: 0x%x\n", rdata);
wdata = rdata;
if (intIndexHi)
set_fields(&wdata, intIndexHi, intIndex, 0);
else
set_fields(&wdata, intIndex, intIndex, 0);
txgbe_wr32_epcs(hw, 0x78002, wdata);
rdata = txgbe_rd32_epcs(hw, 0x78002);
kr_dbg(KR_MODE, "[After clear] Read VR AN MMD Interrupt Register: 0x%x\n", rdata);
return status;
}
void read_phy_lane_txeq(unsigned short lane, struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
unsigned int addr, rdata;
/*LANEN_DIG_ASIC_TX_ASIC_IN_1[11:6]: TX_MAIN_CURSOR*/
addr = 0x100E | (lane << 8);
rdata = rd32_ephy(hw, addr);
kr_dbg(KR_MODE, "PHY LANE%0d TX EQ Read Value:\n", lane);
kr_dbg(KR_MODE, " TX_MAIN_CURSOR: %d\n", ((rdata >> 6) & 0x3F));
/*LANEN_DIG_ASIC_TX_ASIC_IN_2[5 :0]: TX_PRE_CURSOR*/
/*LANEN_DIG_ASIC_TX_ASIC_IN_2[11:6]: TX_POST_CURSOR*/
addr = 0x100F | (lane << 8);
rdata = rd32_ephy(hw, addr);
kr_dbg(KR_MODE, " TX_PRE_CURSOR : %d\n", (rdata & 0x3F));
kr_dbg(KR_MODE, " TX_POST_CURSOR: %d\n", ((rdata >> 6) & 0x3F));
kr_dbg(KR_MODE, "**********************************************\n");
}
/*Enable Clause 72 KR training
**
**Note:
**<1>. The Clause 72 start-up protocol should be initiated when all pages are exchanged during Clause 73 auto-
**negotiation and when the auto-negotiation process is waiting for link status to be UP for 500 ms after
**exchanging all the pages.
**
**<2>. The local device and link partner should be enabled the CL72 KR training
**with in 500ms
**
**enable:
**- bits[1:0] =2'b11: Enable the CL72 KR training
**- bits[1:0] =2'b01: Disable the CL72 KR training
*/
int en_cl72_krtr(unsigned int enable, struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
unsigned int wdata = 0;
u32 val;
if (enable == 1) {
kr_dbg(KR_MODE, "\nDisable Clause 72 KR Training ...\n");
read_phy_lane_txeq(0, adapter);
} else if (enable == 3) {
kr_dbg(KR_MODE, "\nEnable Clause 72 KR Training ...\n");
if (CL72_KRTR_PRBS_MODE_EN != 0xffff) {
/*Set PRBS Timer Duration Control to maximum 6.7ms in VR_PMA_KRTR_PRBS_CTRL1 Register*/
wdata = CL72_KRTR_PRBS_MODE_EN;
txgbe_wr32_epcs(hw, 0x18005, wdata);
/*Set PRBS Timer Duration Control to maximum 6.7ms in VR_PMA_KRTR_PRBS_CTRL1 Register*/
wdata = 0xFFFF;
txgbe_wr32_epcs(hw, 0x18004, wdata);
/*Enable PRBS Mode to determine KR Training Status by setting Bit 0 of VR_PMA_KRTR_PRBS_CTRL0 Register*/
wdata = 0;
set_fields(&wdata, 0, 0, 1);
}
/*Enable PRBS31 as the KR Training Pattern by setting Bit 1 of VR_PMA_KRTR_PRBS_CTRL0 Register*/
if (CL72_KRTR_PRBS31_EN == 1)
set_fields(&wdata, 1, 1, 1);
val = txgbe_rd32_epcs(hw, 0x18003);
wdata |= val;
txgbe_wr32_epcs(hw, 0x18003, wdata);
read_phy_lane_txeq(0, adapter);
}
/*Enable the Clause 72 start-up protocol by setting Bit 1 of SR_PMA_KR_PMD_CTRL Register.
**Restart the Clause 72 start-up protocol by setting Bit 0 of SR_PMA_KR_PMD_CTRL Register*/
wdata = enable;
txgbe_wr32_epcs(hw, 0x10096, wdata);
return 0;
}
int chk_cl72_krtr_status(struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
unsigned int rdata = 0, rdata1;
int status = 0;
status = read_poll_timeout(txgbe_rd32_epcs, rdata1, (rdata1 & 0x9), 1000,
400000, false, hw, 0x10097);
if (!status) {
//Get the latest received coefficient update or status
rdata = txgbe_rd32_epcs(hw, 0x010098);
kr_dbg(KR_MODE, "SR PMA MMD 10GBASE-KR LP Coefficient Update Register: 0x%x\n",
rdata);
rdata = txgbe_rd32_epcs(hw, 0x010099);
kr_dbg(KR_MODE, "SR PMA MMD 10GBASE-KR LP Coefficient Status Register: 0x%x\n",
rdata);
rdata = txgbe_rd32_epcs(hw, 0x01009a);
kr_dbg(KR_MODE, "SR PMA MMD 10GBASE-KR LD Coefficient Update: 0x%x\n", rdata);
rdata = txgbe_rd32_epcs(hw, 0x01009b);
kr_dbg(KR_MODE, " SR PMA MMD 10GBASE-KR LD Coefficient Status: 0x%x\n", rdata);
rdata = txgbe_rd32_epcs(hw, 0x010097);
kr_dbg(KR_MODE, "SR PMA MMD 10GBASE-KR Status Register: 0x%x\n", rdata);
kr_dbg(KR_MODE, " Training Failure (bit3): %d\n", ((rdata >> 3) & 0x01));
kr_dbg(KR_MODE, " Start-Up Protocol Status (bit2): %d\n", ((rdata >> 2) & 0x01));
kr_dbg(KR_MODE, " Frame Lock (bit1): %d\n", ((rdata >> 1) & 0x01));
kr_dbg(KR_MODE, " Receiver Status (bit0): %d\n", ((rdata >> 0) & 0x01));
/*If bit3 is set, Training is completed with failure*/
if ((rdata1 >> 3) & 0x01) {
kr_dbg(KR_MODE, "Training is completed with failure!!!\n");
read_phy_lane_txeq(0, adapter);
return status;
}
/*If bit0 is set, Receiver trained and ready to receive data*/
if ((rdata1 >> 0) & 0x01) {
kr_dbg(KR_MODE, "Receiver trained and ready to receive data ^_^\n");
e_dev_info("Receiver ready.\n");
read_phy_lane_txeq(0, adapter);
return status;
}
}
kr_dbg(KR_MODE, "ERROR: Check Clause 72 KR Training Complete Timeout!!!\n");
return status;
}
int handle_bkp_an73_flow(unsigned char bp_link_mode, struct txgbe_adapter *adapter)
{
bkpan73ability tBkpAn73Ability , tLpBkpAn73Ability ;
u32 rdata = 0, rdata1 = 0, round = 1;
struct txgbe_hw *hw = &adapter->hw;
bool lpld_all_rd = false;
unsigned int addr, data;
int status = 0, k;
tBkpAn73Ability.currentLinkMode = bp_link_mode;
if (AN73_TRAINNING_MODE == 1) {
round = 2;
txgbe_wr32_epcs(hw, TXGBE_SR_AN_MMD_CTL, 0);
}
kr_dbg(KR_MODE, "HandleBkpAn73Flow().\n");
kr_dbg(KR_MODE, "---------------------------------\n");
/*1. Get the local AN73 Base Page Ability*/
kr_dbg(KR_MODE, "<1>. Get the local AN73 Base Page Ability ...\n");
get_bkp_an73_ability(&tBkpAn73Ability, 0, adapter);
/*2. Check the AN73 Interrupt Status*/
kr_dbg(KR_MODE, "<2>. Check the AN73 Interrupt Status ...\n");
/*3.Clear the AN_PG_RCV interrupt*/
clr_bkp_an73_int(2, 0x0, adapter);
/*3.1. Get the link partner AN73 Base Page Ability*/
kr_dbg(KR_MODE, "<3.1>. Get the link partner AN73 Base Page Ability ...\n");
get_bkp_an73_ability(&tLpBkpAn73Ability, 1, adapter);
/*3.2. Check the AN73 Link Ability with Link Partner*/
kr_dbg(KR_MODE, "<3.2>. Check the AN73 Link Ability with Link Partner ...\n");
kr_dbg(KR_MODE, " Local Link Ability: 0x%x\n", tBkpAn73Ability.linkAbility);
kr_dbg(KR_MODE, " Link Partner Link Ability: 0x%x\n", tLpBkpAn73Ability.linkAbility);
chk_bkp_an73_ability(tBkpAn73Ability, tLpBkpAn73Ability, adapter);
/*Check the FEC and KR Training for KR mode*/
/* FEC handling */
kr_dbg(KR_MODE, "<3.3>. Check the FEC for KR mode ...\n");
tBkpAn73Ability.fecAbility = 0x3;
tLpBkpAn73Ability.fecAbility = 0x3;
if (((tBkpAn73Ability.fecAbility & tLpBkpAn73Ability.fecAbility) == 0x03)
&& (KR_FEC == 1)) {
e_dev_info("Enable KR FEC ...\n");
//Write 1 to SR_PMA_KR_FEC_CTRL bit0 to enable the FEC
data = 1;
addr = 0x100ab; //SR_PMA_KR_FEC_CTRL
txgbe_wr32_epcs(hw, addr, data);
} else {
e_dev_info("KR FEC is disabled.\n");
}
kr_dbg(KR_MODE, "\n<3.4>. Check the CL72 KR Training for KR mode ...\n");
for (k = 0; k < round; k++) {
status |= en_cl72_krtr(3, adapter);
kr_dbg(KR_MODE, "\nCheck the Clause 72 KR Training status ...\n");
status |= chk_cl72_krtr_status(adapter);
status = read_poll_timeout(txgbe_rd32_epcs, rdata, (rdata & 0x8000), 1000,
200000, false, hw, 0x10099);
if (!status) {
rdata1 = txgbe_rd32_epcs(hw, 0x1009b) & 0x8000;
if (rdata1 == 0x8000)
lpld_all_rd = true;
}
if (lpld_all_rd) {
rdata = rd32_ephy(hw, 0x100E);
rdata1 = rd32_ephy(hw, 0x100F);
e_dev_info("Lp and Ld all Ready, FFE : %d-%d-%d.\n",
(rdata >> 6) & 0x3F, rdata1 & 0x3F, (rdata1 >> 6) & 0x3F);
clr_bkp_an73_int(2, 0, adapter);
clr_bkp_an73_int(1, 0, adapter);
clr_bkp_an73_int(0, 0, adapter);
status = read_poll_timeout(txgbe_rd32_epcs, rdata, (rdata & 0x1000), 1000,
100000, false, hw, 0x30020);
if (!status)
e_dev_info("INT_AN_INT_CMPLT =1, AN73 Done Success.\n");
return 0;
}
clr_bkp_an73_int(2, 0, adapter);
clr_bkp_an73_int(1, 0, adapter);
clr_bkp_an73_int(0, 0, adapter);
}
e_dev_info("Trainning failure\n");
if (AN73_TRAINNING_MODE == 0)
status |= en_cl72_krtr(1, adapter);
return status;
}

63
drivers/net/ethernet/wangxun/txgbe/txgbe_bp.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */
#ifndef _TXGBE_BP_H_
#define _TXGBE_BP_H_
#include "txgbe.h"
#include "txgbe_type.h"
#include "txgbe_hw.h"
/* Backplane AN73 Base Page Ability struct*/
typedef struct TBKPAN73ABILITY {
unsigned int nextPage; //Next Page (bit0)
unsigned int linkAbility; //Link Ability (bit[7:0])
unsigned int fecAbility; //FEC Request (bit1), FEC Enable (bit0)
unsigned int currentLinkMode; //current link mode for local device
} bkpan73ability;
#ifndef read_poll_timeout
#define read_poll_timeout(op, val, cond, sleep_us, timeout_us, \
sleep_before_read, args...) \
({ \
u64 __timeout_us = (timeout_us); \
unsigned long __sleep_us = (sleep_us); \
ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \
might_sleep_if((__sleep_us) != 0); \
if (sleep_before_read && __sleep_us) \
usleep_range((__sleep_us >> 2) + 1, __sleep_us); \
for (;;) { \
(val) = op(args); \
if (cond) \
break; \
if (__timeout_us && \
ktime_compare(ktime_get(), __timeout) > 0) { \
(val) = op(args); \
break; \
} \
if (__sleep_us) \
usleep_range((__sleep_us >> 2) + 1, __sleep_us); \
cpu_relax(); \
} \
(cond) ? 0 : -ETIMEDOUT; \
})
#endif
#define kr_dbg(KR_MODE, fmt, arg...) \
do { \
if (KR_MODE) \
e_dev_info(fmt, ##arg); \
} while (0)
void txgbe_bp_down_event(struct txgbe_adapter *adapter);
void txgbe_bp_watchdog_event(struct txgbe_adapter *adapter);
int txgbe_bp_mode_setting(struct txgbe_adapter *adapter);
void txgbe_bp_close_protect(struct txgbe_adapter *adapter);
int handle_bkp_an73_flow(unsigned char bp_link_mode, struct txgbe_adapter *adapter);
int get_bkp_an73_ability(bkpan73ability *pt_bkp_an73_ability, unsigned char byLinkPartner,
struct txgbe_adapter *adapter);
int clr_bkp_an73_int(unsigned int intIndex, unsigned int intIndexHi,
struct txgbe_adapter *adapter);
int chk_bkp_an73_ability(bkpan73ability tBkpAn73Ability, bkpan73ability tLpBkpAn73Ability,
struct txgbe_adapter *adapter);
#endif

653
drivers/net/ethernet/wangxun/txgbe/txgbe_dcb.c Normal file
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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_dcb.c, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#include "txgbe_type.h"
#include "txgbe_dcb.h"
#include "txgbe.h"
/*
* txgbe_dcb_calculate_tc_credits - This calculates the ieee traffic class
* credits from the configured bandwidth percentages. Credits
* are the smallest unit programmable into the underlying
* hardware. The IEEE 802.1Qaz specification do not use bandwidth
* groups so this is much simplified from the CEE case.
*/
s32 txgbe_dcb_calculate_tc_credits(u8 *bw, u16 *refill, u16 *max,
int max_frame_size)
{
int min_percent = 100;
int min_credit, multiplier;
int i;
min_credit = ((max_frame_size / 2) + TXGBE_DCB_CREDIT_QUANTUM - 1) /
TXGBE_DCB_CREDIT_QUANTUM;
for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
if (bw[i] < min_percent && bw[i])
min_percent = bw[i];
}
multiplier = (min_credit / min_percent) + 1;
/* Find out the hw credits for each TC */
for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
int val = min(bw[i] * multiplier, TXGBE_DCB_MAX_CREDIT_REFILL);
if (val < min_credit)
val = min_credit;
refill[i] = (u16)val;
max[i] = (u16)(bw[i] ? (bw[i]*TXGBE_DCB_MAX_CREDIT)/100 : min_credit);
}
return 0;
}
/**
* txgbe_dcb_calculate_tc_credits_cee - Calculates traffic class credits
* @txgbe_dcb_config: Struct containing DCB settings.
* @direction: Configuring either Tx or Rx.
*
* This function calculates the credits allocated to each traffic class.
* It should be called only after the rules are checked by
* txgbe_dcb_check_config_cee().
*/
s32 txgbe_dcb_calculate_tc_credits_cee(struct txgbe_hw *hw,
struct txgbe_dcb_config *dcb_config,
u32 max_frame_size, u8 direction)
{
struct txgbe_dcb_tc_path *p;
u32 min_multiplier = 0;
u16 min_percent = 100;
s32 ret_val = 0;
/* Initialization values default for Tx settings */
u32 min_credit = 0;
u32 credit_refill = 0;
u32 credit_max = 0;
u16 link_percentage = 0;
u8 bw_percent = 0;
u8 i;
UNREFERENCED_PARAMETER(hw);
if (dcb_config == NULL) {
ret_val = TXGBE_ERR_CONFIG;
goto out;
}
min_credit = ((max_frame_size / 2) + TXGBE_DCB_CREDIT_QUANTUM - 1) /
TXGBE_DCB_CREDIT_QUANTUM;
/* Find smallest link percentage */
for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
p = &dcb_config->tc_config[i].path[direction];
bw_percent = dcb_config->bw_percentage[direction][p->bwg_id];
link_percentage = p->bwg_percent;
link_percentage = (link_percentage * bw_percent) / 100;
if (link_percentage && link_percentage < min_percent)
min_percent = link_percentage;
}
/*
* The ratio between traffic classes will control the bandwidth
* percentages seen on the wire. To calculate this ratio we use
* a multiplier. It is required that the refill credits must be
* larger than the max frame size so here we find the smallest
* multiplier that will allow all bandwidth percentages to be
* greater than the max frame size.
*/
min_multiplier = (min_credit / min_percent) + 1;
/* Find out the link percentage for each TC first */
for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
p = &dcb_config->tc_config[i].path[direction];
bw_percent = dcb_config->bw_percentage[direction][p->bwg_id];
link_percentage = p->bwg_percent;
/* Must be careful of integer division for very small nums */
link_percentage = (link_percentage * bw_percent) / 100;
if (p->bwg_percent > 0 && link_percentage == 0)
link_percentage = 1;
/* Save link_percentage for reference */
p->link_percent = (u8)link_percentage;
/* Calculate credit refill ratio using multiplier */
credit_refill = min(link_percentage * min_multiplier,
(u32)TXGBE_DCB_MAX_CREDIT_REFILL);
/* Refill at least minimum credit */
if (credit_refill < min_credit)
credit_refill = min_credit;
p->data_credits_refill = (u16)credit_refill;
/* Calculate maximum credit for the TC */
credit_max = (link_percentage * TXGBE_DCB_MAX_CREDIT) / 100;
/*
* Adjustment based on rule checking, if the percentage
* of a TC is too small, the maximum credit may not be
* enough to send out a jumbo frame in data plane arbitration.
*/
if (credit_max < min_credit)
credit_max = min_credit;
if (direction == TXGBE_DCB_TX_CONFIG) {
/*
* Adjustment based on rule checking, if the
* percentage of a TC is too small, the maximum
* credit may not be enough to send out a TSO
* packet in descriptor plane arbitration.
*/
dcb_config->tc_config[i].desc_credits_max =
(u16)credit_max;
}
p->data_credits_max = (u16)credit_max;
}
out:
return ret_val;
}
/**
* txgbe_dcb_unpack_pfc_cee - Unpack dcb_config PFC info
* @cfg: dcb configuration to unpack into hardware consumable fields
* @map: user priority to traffic class map
* @pfc_up: u8 to store user priority PFC bitmask
*
* This unpacks the dcb configuration PFC info which is stored per
* traffic class into a 8bit user priority bitmask that can be
* consumed by hardware routines. The priority to tc map must be
* updated before calling this routine to use current up-to maps.
*/
void txgbe_dcb_unpack_pfc_cee(struct txgbe_dcb_config *cfg, u8 *map, u8 *pfc_up)
{
struct txgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int up;
/*
* If the TC for this user priority has PFC enabled then set the
* matching bit in 'pfc_up' to reflect that PFC is enabled.
*/
for (*pfc_up = 0, up = 0; up < TXGBE_DCB_MAX_USER_PRIORITY; up++) {
if (tc_config[map[up]].pfc != txgbe_dcb_pfc_disabled)
*pfc_up |= 1 << up;
}
}
void txgbe_dcb_unpack_refill_cee(struct txgbe_dcb_config *cfg, int direction,
u16 *refill)
{
struct txgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int tc;
for (tc = 0; tc < TXGBE_DCB_MAX_TRAFFIC_CLASS; tc++)
refill[tc] = tc_config[tc].path[direction].data_credits_refill;
}
void txgbe_dcb_unpack_max_cee(struct txgbe_dcb_config *cfg, u16 *max)
{
struct txgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int tc;
for (tc = 0; tc < TXGBE_DCB_MAX_TRAFFIC_CLASS; tc++)
max[tc] = tc_config[tc].desc_credits_max;
}
void txgbe_dcb_unpack_bwgid_cee(struct txgbe_dcb_config *cfg, int direction,
u8 *bwgid)
{
struct txgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int tc;
for (tc = 0; tc < TXGBE_DCB_MAX_TRAFFIC_CLASS; tc++)
bwgid[tc] = tc_config[tc].path[direction].bwg_id;
}
void txgbe_dcb_unpack_tsa_cee(struct txgbe_dcb_config *cfg, int direction,
u8 *tsa)
{
struct txgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int tc;
for (tc = 0; tc < TXGBE_DCB_MAX_TRAFFIC_CLASS; tc++)
tsa[tc] = tc_config[tc].path[direction].tsa;
}
u8 txgbe_dcb_get_tc_from_up(struct txgbe_dcb_config *cfg, int direction, u8 up)
{
struct txgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
u8 prio_mask = 1 << up;
u8 tc = cfg->num_tcs.pg_tcs;
/* If tc is 0 then DCB is likely not enabled or supported */
if (!tc)
goto out;
/*
* Test from maximum TC to 1 and report the first match we find. If
* we find no match we can assume that the TC is 0 since the TC must
* be set for all user priorities
*/
for (tc--; tc; tc--) {
if (prio_mask & tc_config[tc].path[direction].up_to_tc_bitmap)
break;
}
out:
return tc;
}
void txgbe_dcb_unpack_map_cee(struct txgbe_dcb_config *cfg, int direction,
u8 *map)
{
u8 up;
for (up = 0; up < TXGBE_DCB_MAX_USER_PRIORITY; up++)
map[up] = txgbe_dcb_get_tc_from_up(cfg, direction, up);
}
/**
* txgbe_dcb_config_tc_stats - Config traffic class statistics
* @hw: pointer to hardware structure
*
* Configure queue statistics registers, all queues belonging to same traffic
* class uses a single set of queue statistics counters.
*/
s32 txgbe_dcb_config_tc_stats(struct txgbe_hw *hw,
struct txgbe_dcb_config *dcb_config)
{
UNREFERENCED_PARAMETER(hw);
UNREFERENCED_PARAMETER(dcb_config);
return 0;
}
/**
* txgbe_dcb_hw_config_cee - Config and enable DCB
* @hw: pointer to hardware structure
* @dcb_config: pointer to txgbe_dcb_config structure
*
* Configure dcb settings and enable dcb mode.
*/
s32 txgbe_dcb_hw_config_cee(struct txgbe_hw *hw,
struct txgbe_dcb_config *dcb_config)
{
s32 ret = TXGBE_NOT_IMPLEMENTED;
u8 pfc_en;
u8 tsa[TXGBE_DCB_MAX_TRAFFIC_CLASS];
u8 bwgid[TXGBE_DCB_MAX_TRAFFIC_CLASS];
u8 map[TXGBE_DCB_MAX_USER_PRIORITY] = { 0 };
u16 refill[TXGBE_DCB_MAX_TRAFFIC_CLASS];
u16 max[TXGBE_DCB_MAX_TRAFFIC_CLASS];
/* Unpack CEE standard containers */
txgbe_dcb_unpack_refill_cee(dcb_config, TXGBE_DCB_TX_CONFIG, refill);
txgbe_dcb_unpack_max_cee(dcb_config, max);
txgbe_dcb_unpack_bwgid_cee(dcb_config, TXGBE_DCB_TX_CONFIG, bwgid);
txgbe_dcb_unpack_tsa_cee(dcb_config, TXGBE_DCB_TX_CONFIG, tsa);
txgbe_dcb_unpack_map_cee(dcb_config, TXGBE_DCB_TX_CONFIG, map);
txgbe_dcb_config(hw, dcb_config);
ret = txgbe_dcb_hw_config(hw,
refill, max, bwgid,
tsa, map);
txgbe_dcb_config_tc_stats(hw, dcb_config);
if (!ret && dcb_config->pfc_mode_enable) {
txgbe_dcb_unpack_pfc_cee(dcb_config, map, &pfc_en);
ret = txgbe_dcb_config_pfc(hw, pfc_en, map);
}
return ret;
}
/* Helper routines to abstract HW specifics from DCB netlink ops */
s32 txgbe_dcb_config_pfc(struct txgbe_hw *hw, u8 pfc_en, u8 *map)
{
int ret = TXGBE_ERR_PARAM;
u32 i, j, fcrtl, reg;
u8 max_tc = 0;
/* Enable Transmit Priority Flow Control */
wr32(hw, TXGBE_RDB_RFCC, TXGBE_RDB_RFCC_RFCE_PRIORITY);
/* Enable Receive Priority Flow Control */
reg = 0;
if (pfc_en)
reg |= (TXGBE_MAC_RX_FLOW_CTRL_PFCE | 0x1);
wr32(hw, TXGBE_MAC_RX_FLOW_CTRL, reg);
for (i = 0; i < TXGBE_DCB_MAX_USER_PRIORITY; i++) {
if (map[i] > max_tc)
max_tc = map[i];
}
/* Configure PFC Tx thresholds per TC */
for (i = 0; i <= max_tc; i++) {
int enabled = 0;
for (j = 0; j < TXGBE_DCB_MAX_USER_PRIORITY; j++) {
if ((map[j] == i) && (pfc_en & (1 << j))) {
enabled = 1;
break;
}
}
if (enabled) {
reg = (hw->fc.high_water[i] << 10) |
TXGBE_RDB_RFCH_XOFFE;
fcrtl = (hw->fc.low_water[i] << 10) |
TXGBE_RDB_RFCL_XONE;
wr32(hw, TXGBE_RDB_RFCH(i), fcrtl);
} else {
/*
* In order to prevent Tx hangs when the internal Tx
* switch is enabled we must set the high water mark
* to the Rx packet buffer size - 24KB. This allows
* the Tx switch to function even under heavy Rx
* workloads.
*/
reg = rd32(hw, TXGBE_RDB_PB_SZ(i));
wr32(hw, TXGBE_RDB_RFCL(i), 0);
}
wr32(hw, TXGBE_RDB_RFCH(i), reg);
}
for (; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
wr32(hw, TXGBE_RDB_RFCL(i), 0);
wr32(hw, TXGBE_RDB_RFCH(i), 0);
}
/* Configure pause time (2 TCs per register) */
reg = hw->fc.pause_time | (hw->fc.pause_time << 16);
for (i = 0; i < (TXGBE_DCB_MAX_TRAFFIC_CLASS / 2); i++)
wr32(hw, TXGBE_RDB_RFCV(i), reg);
/* Configure flow control refresh threshold value */
wr32(hw, TXGBE_RDB_RFCRT, hw->fc.pause_time / 2);
return ret;
}
s32 txgbe_dcb_hw_config(struct txgbe_hw *hw, u16 *refill, u16 *max,
u8 *bwg_id, u8 *tsa, u8 *map)
{
txgbe_dcb_config_rx_arbiter(hw, refill, max, bwg_id,
tsa, map);
txgbe_dcb_config_tx_desc_arbiter(hw, refill, max,
bwg_id, tsa);
txgbe_dcb_config_tx_data_arbiter(hw, refill, max,
bwg_id, tsa, map);
return 0;
}
/**
* txgbe_dcb_config_rx_arbiter - Config Rx Data arbiter
* @hw: pointer to hardware structure
* @dcb_config: pointer to txgbe_dcb_config structure
*
* Configure Rx Packet Arbiter and credits for each traffic class.
*/
s32 txgbe_dcb_config_rx_arbiter(struct txgbe_hw *hw, u16 *refill,
u16 *max, u8 *bwg_id, u8 *tsa,
u8 *map)
{
u32 reg = 0;
u32 credit_refill = 0;
u32 credit_max = 0;
u8 i = 0;
/*
* Disable the arbiter before changing parameters
* (always enable recycle mode; WSP)
*/
reg = TXGBE_RDM_ARB_CTL_RRM | TXGBE_RDM_ARB_CTL_RAC |
TXGBE_RDM_ARB_CTL_ARBDIS;
wr32(hw, TXGBE_RDM_ARB_CTL, reg);
/*
* map all UPs to TCs. up_to_tc_bitmap for each TC has corresponding
* bits sets for the UPs that needs to be mappped to that TC.
* e.g if priorities 6 and 7 are to be mapped to a TC then the
* up_to_tc_bitmap value for that TC will be 11000000 in binary.
*/
reg = 0;
for (i = 0; i < TXGBE_DCB_MAX_USER_PRIORITY; i++)
reg |= (map[i] << (i * TXGBE_RDB_UP2TC_UP_SHIFT));
wr32(hw, TXGBE_RDB_UP2TC, reg);
/* Configure traffic class credits and priority */
for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
credit_refill = refill[i];
credit_max = max[i];
reg = credit_refill |
(credit_max << TXGBE_RDM_ARB_CFG_MCL_SHIFT);
reg |= (u32)(bwg_id[i]) << TXGBE_RDM_ARB_CFG_BWG_SHIFT;
if (tsa[i] == txgbe_dcb_tsa_strict)
reg |= TXGBE_RDM_ARB_CFG_LSP;
wr32(hw, TXGBE_RDM_ARB_CFG(i), reg);
}
/*
* Configure Rx packet plane (recycle mode; WSP) and
* enable arbiter
*/
reg = TXGBE_RDM_ARB_CTL_RRM | TXGBE_RDM_ARB_CTL_RAC;
wr32(hw, TXGBE_RDM_ARB_CTL, reg);
return 0;
}
/**
* txgbe_dcb_config_tx_desc_arbiter - Config Tx Desc. arbiter
* @hw: pointer to hardware structure
* @dcb_config: pointer to txgbe_dcb_config structure
*
* Configure Tx Descriptor Arbiter and credits for each traffic class.
*/
s32 txgbe_dcb_config_tx_desc_arbiter(struct txgbe_hw *hw, u16 *refill,
u16 *max, u8 *bwg_id, u8 *tsa)
{
u32 reg, max_credits;
u8 i;
/* Clear the per-Tx queue credits; we use per-TC instead */
for (i = 0; i < 128; i++) {
wr32(hw, TXGBE_TDM_VM_CREDIT(i), 0);
}
/* Configure traffic class credits and priority */
for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
max_credits = max[i];
reg = max_credits << TXGBE_TDM_PBWARB_CFG_MCL_SHIFT;
reg |= refill[i];
reg |= (u32)(bwg_id[i]) << TXGBE_TDM_PBWARB_CFG_BWG_SHIFT;
if (tsa[i] == txgbe_dcb_tsa_group_strict_cee)
reg |= TXGBE_TDM_PBWARB_CFG_GSP;
if (tsa[i] == txgbe_dcb_tsa_strict)
reg |= TXGBE_TDM_PBWARB_CFG_LSP;
wr32(hw, TXGBE_TDM_PBWARB_CFG(i), reg);
}
/*
* Configure Tx descriptor plane (recycle mode; WSP) and
* enable arbiter
*/
reg = TXGBE_TDM_PBWARB_CTL_TDPAC | TXGBE_TDM_PBWARB_CTL_TDRM;
wr32(hw, TXGBE_TDM_PBWARB_CTL, reg);
return 0;
}
/**
* txgbe_dcb_config_tx_data_arbiter - Config Tx Data arbiter
* @hw: pointer to hardware structure
* @dcb_config: pointer to txgbe_dcb_config structure
*
* Configure Tx Packet Arbiter and credits for each traffic class.
*/
s32 txgbe_dcb_config_tx_data_arbiter(struct txgbe_hw *hw, u16 *refill,
u16 *max, u8 *bwg_id, u8 *tsa,
u8 *map)
{
u32 reg;
u8 i;
/*
* Disable the arbiter before changing parameters
* (always enable recycle mode; SP; arb delay)
*/
reg = TXGBE_TDB_PBRARB_CTL_TPPAC | TXGBE_TDB_PBRARB_CTL_TPRM |
TXGBE_RTTPCS_ARBDIS;
wr32(hw, TXGBE_TDB_PBRARB_CTL, reg);
/*
* map all UPs to TCs. up_to_tc_bitmap for each TC has corresponding
* bits sets for the UPs that needs to be mappped to that TC.
* e.g if priorities 6 and 7 are to be mapped to a TC then the
* up_to_tc_bitmap value for that TC will be 11000000 in binary.
*/
reg = 0;
for (i = 0; i < TXGBE_DCB_MAX_USER_PRIORITY; i++)
reg |= (map[i] << (i * TXGBE_TDB_UP2TC_UP_SHIFT));
wr32(hw, TXGBE_TDB_UP2TC, reg);
/* Configure traffic class credits and priority */
for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
reg = refill[i];
reg |= (u32)(max[i]) << TXGBE_TDB_PBRARB_CFG_MCL_SHIFT;
reg |= (u32)(bwg_id[i]) << TXGBE_TDB_PBRARB_CFG_BWG_SHIFT;
if (tsa[i] == txgbe_dcb_tsa_group_strict_cee)
reg |= TXGBE_TDB_PBRARB_CFG_GSP;
if (tsa[i] == txgbe_dcb_tsa_strict)
reg |= TXGBE_TDB_PBRARB_CFG_LSP;
wr32(hw, TXGBE_TDB_PBRARB_CFG(i), reg);
}
/*
* Configure Tx packet plane (recycle mode; SP; arb delay) and
* enable arbiter
*/
reg = TXGBE_TDB_PBRARB_CTL_TPPAC | TXGBE_TDB_PBRARB_CTL_TPRM;
wr32(hw, TXGBE_TDB_PBRARB_CTL, reg);
return 0;
}
/**
* txgbe_dcb_config - Configure general DCB parameters
* @hw: pointer to hardware structure
* @dcb_config: pointer to txgbe_dcb_config structure
*
* Configure general DCB parameters.
*/
s32 txgbe_dcb_config(struct txgbe_hw *hw,
struct txgbe_dcb_config *dcb_config)
{
u32 n, value;
struct txgbe_adapter *adapter = hw->back;
if (dcb_config->vt_mode)
adapter->flags |= TXGBE_FLAG_VMDQ_ENABLED;
else
adapter->flags &= ~TXGBE_FLAG_VMDQ_ENABLED;
if (adapter->flags & TXGBE_FLAG_VMDQ_ENABLED) {
if (dcb_config->num_tcs.pg_tcs == 8)
/* 8 TCs */
value = TXGBE_CFG_PORT_CTL_NUM_TC_8 |
TXGBE_CFG_PORT_CTL_NUM_VT_16 |
TXGBE_CFG_PORT_CTL_DCB_EN;
else if (dcb_config->num_tcs.pg_tcs == 4)
/* 4 TCs */
value = TXGBE_CFG_PORT_CTL_NUM_TC_4 |
TXGBE_CFG_PORT_CTL_NUM_VT_32 |
TXGBE_CFG_PORT_CTL_DCB_EN;
else if (adapter->ring_feature[RING_F_RSS].indices == 4)
value = TXGBE_CFG_PORT_CTL_NUM_VT_32;
else /* adapter->ring_feature[RING_F_RSS].indices <= 2 */
value = TXGBE_CFG_PORT_CTL_NUM_VT_64;
} else {
if (dcb_config->num_tcs.pg_tcs == 8)
value = TXGBE_CFG_PORT_CTL_NUM_TC_8 |
TXGBE_CFG_PORT_CTL_DCB_EN;
else if (dcb_config->num_tcs.pg_tcs == 4)
value = TXGBE_CFG_PORT_CTL_NUM_TC_4 |
TXGBE_CFG_PORT_CTL_DCB_EN;
else
value = 0;
}
value |= TXGBE_CFG_PORT_CTL_D_VLAN | TXGBE_CFG_PORT_CTL_QINQ;
wr32m(hw, TXGBE_CFG_PORT_CTL,
TXGBE_CFG_PORT_CTL_NUM_TC_MASK |
TXGBE_CFG_PORT_CTL_NUM_VT_MASK |
TXGBE_CFG_PORT_CTL_DCB_EN |
TXGBE_CFG_PORT_CTL_D_VLAN |
TXGBE_CFG_PORT_CTL_QINQ,
value);
/* Disable drop for all queues */
for (n = 0; n < 4; n++) {
wr32(hw, TXGBE_RDM_PF_QDE(n), 0x0);
}
return 0;
}

208
drivers/net/ethernet/wangxun/txgbe/txgbe_dcb.h Normal file
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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_dcb.h, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#ifndef _TXGBE_DCB_H_
#define _TXGBE_DCB_H_
#include "txgbe_type.h"
/* DCB defines */
/* DCB credit calculation defines */
#define TXGBE_DCB_CREDIT_QUANTUM 64
#define TXGBE_DCB_MAX_CREDIT_REFILL 200 /* 200 * 64B = 12800B */
#define TXGBE_DCB_MAX_TSO_SIZE (32 * 1024) /* Max TSO pkt size in DCB*/
#define TXGBE_DCB_MAX_CREDIT (2 * TXGBE_DCB_MAX_CREDIT_REFILL)
/* 513 for 32KB TSO packet */
#define TXGBE_DCB_MIN_TSO_CREDIT \
((TXGBE_DCB_MAX_TSO_SIZE / TXGBE_DCB_CREDIT_QUANTUM) + 1)
/* DCB configuration defines */
#define TXGBE_DCB_MAX_USER_PRIORITY 8
#define TXGBE_DCB_MAX_BW_GROUP 8
#define TXGBE_DCB_BW_PERCENT 100
#define TXGBE_DCB_TX_CONFIG 0
#define TXGBE_DCB_RX_CONFIG 1
/* DCB capability defines */
#define TXGBE_DCB_PG_SUPPORT 0x00000001
#define TXGBE_DCB_PFC_SUPPORT 0x00000002
#define TXGBE_DCB_BCN_SUPPORT 0x00000004
#define TXGBE_DCB_UP2TC_SUPPORT 0x00000008
#define TXGBE_DCB_GSP_SUPPORT 0x00000010
/* DCB register definitions */
#define TXGBE_TDM_PBWARB_CTL_TDPAC 0x00000001 /* 0 Round Robin,
* 1 WSP - Weighted Strict Priority
*/
#define TXGBE_TDM_PBWARB_CTL_TDRM 0x00000010 /* Transmit Recycle Mode */
#define TXGBE_TDM_PBWARB_CTL_ARBDIS 0x00000040 /* DCB arbiter disable */
/* Receive UP2TC mapping */
#define TXGBE_RDB_UP2TC_UP_SHIFT 4
#define TXGBE_RDB_UP2TC_UP_MASK 7
/* Transmit UP2TC mapping */
#define TXGBE_TDB_UP2TC_UP_SHIFT 4
#define TXGBE_RDM_ARB_CFG_MCL_SHIFT 12 /* Offset to Max Credit Limit setting */
#define TXGBE_RDM_ARB_CFG_BWG_SHIFT 9 /* Offset to BWG index */
#define TXGBE_RDM_ARB_CFG_GSP 0x40000000 /* GSP enable bit */
#define TXGBE_RDM_ARB_CFG_LSP 0x80000000 /* LSP enable bit */
/* RTRPCS Bit Masks */
#define TXGBE_RDM_ARB_CTL_RRM 0x00000002 /* Receive Recycle Mode enable */
/* Receive Arbitration Control: 0 Round Robin, 1 DFP */
#define TXGBE_RDM_ARB_CTL_RAC 0x00000004
#define TXGBE_RDM_ARB_CTL_ARBDIS 0x00000040 /* Arbitration disable bit */
/* RTTDT2C Bit Masks */
#define TXGBE_TDM_PBWARB_CFG_MCL_SHIFT 12
#define TXGBE_TDM_PBWARB_CFG_BWG_SHIFT 9
#define TXGBE_TDM_PBWARB_CFG_GSP 0x40000000
#define TXGBE_TDM_PBWARB_CFG_LSP 0x80000000
#define TXGBE_TDB_PBRARB_CFG_MCL_SHIFT 12
#define TXGBE_TDB_PBRARB_CFG_BWG_SHIFT 9
#define TXGBE_TDB_PBRARB_CFG_GSP 0x40000000
#define TXGBE_TDB_PBRARB_CFG_LSP 0x80000000
/* RTTPCS Bit Masks */
#define TXGBE_TDB_PBRARB_CTL_TPPAC 0x00000020 /* 0 Round Robin,
* 1 SP - Strict Priority
*/
#define TXGBE_RTTPCS_ARBDIS 0x00000040 /* Arbiter disable */
#define TXGBE_TDB_PBRARB_CTL_TPRM 0x00000100 /* Transmit Recycle Mode enable*/
#define TXGBE_TDM_PB_THRE_DCB 0xA /* THRESH value for DCB mode */
struct txgbe_dcb_support {
u32 capabilities; /* DCB capabilities */
/* Each bit represents a number of TCs configurable in the hw.
* If 8 traffic classes can be configured, the value is 0x80. */
u8 traffic_classes;
u8 pfc_traffic_classes;
};
enum txgbe_dcb_tsa {
txgbe_dcb_tsa_ets = 0,
txgbe_dcb_tsa_group_strict_cee,
txgbe_dcb_tsa_strict
};
/* Traffic class bandwidth allocation per direction */
struct txgbe_dcb_tc_path {
u8 bwg_id; /* Bandwidth Group (BWG) ID */
u8 bwg_percent; /* % of BWG's bandwidth */
u8 link_percent; /* % of link bandwidth */
u8 up_to_tc_bitmap; /* User Priority to Traffic Class mapping */
u16 data_credits_refill; /* Credit refill amount in 64B granularity */
u16 data_credits_max; /* Max credits for a configured packet buffer
* in 64B granularity.*/
enum txgbe_dcb_tsa tsa; /* Link or Group Strict Priority */
};
enum txgbe_dcb_pfc {
txgbe_dcb_pfc_disabled = 0,
txgbe_dcb_pfc_enabled,
txgbe_dcb_pfc_enabled_txonly,
txgbe_dcb_pfc_enabled_rxonly
};
/* Traffic class configuration */
struct txgbe_dcb_tc_config {
struct txgbe_dcb_tc_path path[2]; /* One each for Tx/Rx */
enum txgbe_dcb_pfc pfc; /* Class based flow control setting */
u16 desc_credits_max; /* For Tx Descriptor arbitration */
u8 tc; /* Traffic class (TC) */
};
enum txgbe_dcb_pba {
/* PBA[0-7] each use 64KB FIFO */
txgbe_dcb_pba_equal = PBA_STRATEGY_EQUAL,
/* PBA[0-3] each use 80KB, PBA[4-7] each use 48KB */
txgbe_dcb_pba_80_48 = PBA_STRATEGY_WEIGHTED
};
struct txgbe_dcb_num_tcs {
u8 pg_tcs;
u8 pfc_tcs;
};
struct txgbe_dcb_config {
struct txgbe_dcb_tc_config tc_config[TXGBE_DCB_MAX_TRAFFIC_CLASS];
struct txgbe_dcb_support support;
struct txgbe_dcb_num_tcs num_tcs;
u8 bw_percentage[2][TXGBE_DCB_MAX_BW_GROUP]; /* One each for Tx/Rx */
bool pfc_mode_enable;
bool round_robin_enable;
enum txgbe_dcb_pba rx_pba_cfg;
u32 dcb_cfg_version; /* Not used...OS-specific? */
u32 link_speed; /* For bandwidth allocation validation purpose */
bool vt_mode;
};
/* DCB driver APIs */
/* DCB credits calculation */
s32 txgbe_dcb_calculate_tc_credits(u8 *, u16 *, u16 *, int);
s32 txgbe_dcb_calculate_tc_credits_cee(struct txgbe_hw *,
struct txgbe_dcb_config *, u32, u8);
/* DCB PFC */
s32 txgbe_dcb_config_pfc(struct txgbe_hw *, u8, u8 *);
/* DCB stats */
s32 txgbe_dcb_config_tc_stats(struct txgbe_hw *,
struct txgbe_dcb_config *);
/* DCB config arbiters */
s32 txgbe_dcb_config_tx_desc_arbiter(struct txgbe_hw *, u16 *, u16 *,
u8 *, u8 *);
s32 txgbe_dcb_config_tx_data_arbiter(struct txgbe_hw *, u16 *, u16 *,
u8 *, u8 *, u8 *);
s32 txgbe_dcb_config_rx_arbiter(struct txgbe_hw *, u16 *, u16 *, u8 *,
u8 *, u8 *);
/* DCB unpack routines */
void txgbe_dcb_unpack_pfc_cee(struct txgbe_dcb_config *, u8 *, u8 *);
void txgbe_dcb_unpack_refill_cee(struct txgbe_dcb_config *, int, u16 *);
void txgbe_dcb_unpack_max_cee(struct txgbe_dcb_config *, u16 *);
void txgbe_dcb_unpack_bwgid_cee(struct txgbe_dcb_config *, int, u8 *);
void txgbe_dcb_unpack_tsa_cee(struct txgbe_dcb_config *, int, u8 *);
void txgbe_dcb_unpack_map_cee(struct txgbe_dcb_config *, int, u8 *);
u8 txgbe_dcb_get_tc_from_up(struct txgbe_dcb_config *, int, u8);
/* DCB initialization */
s32 txgbe_dcb_config(struct txgbe_hw *,
struct txgbe_dcb_config *);
s32 txgbe_dcb_hw_config(struct txgbe_hw *, u16 *, u16 *, u8 *, u8 *, u8 *);
s32 txgbe_dcb_hw_config_cee(struct txgbe_hw *, struct txgbe_dcb_config *);
#endif /* _TXGBE_DCB_H_ */

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drivers/net/ethernet/wangxun/txgbe/txgbe_dcb_nl.c Normal file
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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_dcb_nl.c, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#include "txgbe.h"
#if IS_ENABLED(CONFIG_DCB)
#include <linux/dcbnl.h>
#include "txgbe_dcb.h"
/* Callbacks for DCB netlink in the kernel */
#define BIT_DCB_MODE 0x01
#define BIT_PFC 0x02
#define BIT_PG_RX 0x04
#define BIT_PG_TX 0x08
#define BIT_APP_UPCHG 0x10
#define BIT_RESETLINK 0x40
#define BIT_LINKSPEED 0x80
/* Responses for the DCB_C_SET_ALL command */
#define DCB_HW_CHG_RST 0 /* DCB configuration changed with reset */
#define DCB_NO_HW_CHG 1 /* DCB configuration did not change */
#define DCB_HW_CHG 2 /* DCB configuration changed, no reset */
int txgbe_copy_dcb_cfg(struct txgbe_adapter *adapter, int tc_max)
{
struct txgbe_dcb_config *scfg = &adapter->temp_dcb_cfg;
struct txgbe_dcb_config *dcfg = &adapter->dcb_cfg;
struct txgbe_dcb_tc_config *src = NULL;
struct txgbe_dcb_tc_config *dst = NULL;
int i, j;
int tx = TXGBE_DCB_TX_CONFIG;
int rx = TXGBE_DCB_RX_CONFIG;
int changes = 0;
#if IS_ENABLED(CONFIG_FCOE)
if (adapter->fcoe.up_set != adapter->fcoe.up)
changes |= BIT_APP_UPCHG;
#endif /* CONFIG_FCOE */
for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) {
src = &scfg->tc_config[i - DCB_PG_ATTR_TC_0];
dst = &dcfg->tc_config[i - DCB_PG_ATTR_TC_0];
if (dst->path[tx].tsa != src->path[tx].tsa) {
dst->path[tx].tsa = src->path[tx].tsa;
changes |= BIT_PG_TX;
}
if (dst->path[tx].bwg_id != src->path[tx].bwg_id) {
dst->path[tx].bwg_id = src->path[tx].bwg_id;
changes |= BIT_PG_TX;
}
if (dst->path[tx].bwg_percent != src->path[tx].bwg_percent) {
dst->path[tx].bwg_percent = src->path[tx].bwg_percent;
changes |= BIT_PG_TX;
}
if (dst->path[tx].up_to_tc_bitmap !=
src->path[tx].up_to_tc_bitmap) {
dst->path[tx].up_to_tc_bitmap =
src->path[tx].up_to_tc_bitmap;
changes |= (BIT_PG_TX | BIT_PFC | BIT_APP_UPCHG);
}
if (dst->path[rx].tsa != src->path[rx].tsa) {
dst->path[rx].tsa = src->path[rx].tsa;
changes |= BIT_PG_RX;
}
if (dst->path[rx].bwg_id != src->path[rx].bwg_id) {
dst->path[rx].bwg_id = src->path[rx].bwg_id;
changes |= BIT_PG_RX;
}
if (dst->path[rx].bwg_percent != src->path[rx].bwg_percent) {
dst->path[rx].bwg_percent = src->path[rx].bwg_percent;
changes |= BIT_PG_RX;
}
if (dst->path[rx].up_to_tc_bitmap !=
src->path[rx].up_to_tc_bitmap) {
dst->path[rx].up_to_tc_bitmap =
src->path[rx].up_to_tc_bitmap;
changes |= (BIT_PG_RX | BIT_PFC | BIT_APP_UPCHG);
}
}
for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) {
j = i - DCB_PG_ATTR_BW_ID_0;
if (dcfg->bw_percentage[tx][j] != scfg->bw_percentage[tx][j]) {
dcfg->bw_percentage[tx][j] = scfg->bw_percentage[tx][j];
changes |= BIT_PG_TX;
}
if (dcfg->bw_percentage[rx][j] != scfg->bw_percentage[rx][j]) {
dcfg->bw_percentage[rx][j] = scfg->bw_percentage[rx][j];
changes |= BIT_PG_RX;
}
}
for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) {
j = i - DCB_PFC_UP_ATTR_0;
if (dcfg->tc_config[j].pfc != scfg->tc_config[j].pfc) {
dcfg->tc_config[j].pfc = scfg->tc_config[j].pfc;
changes |= BIT_PFC;
}
}
if (dcfg->pfc_mode_enable != scfg->pfc_mode_enable) {
dcfg->pfc_mode_enable = scfg->pfc_mode_enable;
changes |= BIT_PFC;
}
return changes;
}
static u8 txgbe_dcbnl_get_state(struct net_device *netdev)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
return !!(adapter->flags & TXGBE_FLAG_DCB_ENABLED);
}
static u8 txgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
int err = 0;
/* Fail command if not in CEE mode */
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return 1;
/* verify there is something to do, if not then exit */
if (!state == !(adapter->flags & TXGBE_FLAG_DCB_ENABLED))
goto out;
err = txgbe_setup_tc(netdev,
state ? adapter->dcb_cfg.num_tcs.pg_tcs : 0);
out:
return !!err;
}
static void txgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
u8 *perm_addr)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
int i, j;
memset(perm_addr, 0xff, MAX_ADDR_LEN);
for (i = 0; i < netdev->addr_len; i++)
perm_addr[i] = adapter->hw.mac.perm_addr[i];
for (j = 0; j < netdev->addr_len; j++, i++)
perm_addr[i] = adapter->hw.mac.san_addr[j];
}
static void txgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
u8 prio, u8 bwg_id, u8 bw_pct,
u8 up_map)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
if (prio != DCB_ATTR_VALUE_UNDEFINED)
adapter->temp_dcb_cfg.tc_config[tc].path[0].tsa = prio;
if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id;
if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent =
bw_pct;
if (up_map != DCB_ATTR_VALUE_UNDEFINED)
adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap =
up_map;
}
static void txgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
u8 bw_pct)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct;
}
static void txgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,
u8 prio, u8 bwg_id, u8 bw_pct,
u8 up_map)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
if (prio != DCB_ATTR_VALUE_UNDEFINED)
adapter->temp_dcb_cfg.tc_config[tc].path[1].tsa = prio;
if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id;
if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent =
bw_pct;
if (up_map != DCB_ATTR_VALUE_UNDEFINED)
adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap =
up_map;
}
static void txgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
u8 bw_pct)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct;
}
static void txgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc,
u8 *prio, u8 *bwg_id, u8 *bw_pct,
u8 *up_map)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
*prio = adapter->dcb_cfg.tc_config[tc].path[0].tsa;
*bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id;
*bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent;
*up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap;
}
static void txgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
u8 *bw_pct)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
*bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id];
}
static void txgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc,
u8 *prio, u8 *bwg_id, u8 *bw_pct,
u8 *up_map)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
*prio = adapter->dcb_cfg.tc_config[tc].path[1].tsa;
*bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id;
*bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent;
*up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap;
}
static void txgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
u8 *bw_pct)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
*bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id];
}
static void txgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int up, u8 pfc)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
u8 tc = txgbe_dcb_get_tc_from_up(&adapter->temp_dcb_cfg, 0, up);
adapter->temp_dcb_cfg.tc_config[tc].pfc = pfc;
if (adapter->temp_dcb_cfg.tc_config[tc].pfc !=
adapter->dcb_cfg.tc_config[tc].pfc)
adapter->temp_dcb_cfg.pfc_mode_enable = true;
}
static void txgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int up, u8 *pfc)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
u8 tc = txgbe_dcb_get_tc_from_up(&adapter->dcb_cfg, 0, up);
*pfc = adapter->dcb_cfg.tc_config[tc].pfc;
}
static void txgbe_dcbnl_devreset(struct net_device *dev)
{
struct txgbe_adapter *adapter = netdev_priv(dev);
while (test_and_set_bit(__TXGBE_RESETTING, &adapter->state))
usleep_range(1000, 2000);
if (netif_running(dev))
#ifdef HAVE_NET_DEVICE_OPS
dev->netdev_ops->ndo_stop(dev);
#else
dev->stop(dev);
#endif
txgbe_clear_interrupt_scheme(adapter);
txgbe_init_interrupt_scheme(adapter);
if (netif_running(dev))
#ifdef HAVE_NET_DEVICE_OPS
dev->netdev_ops->ndo_open(dev);
#else
dev->open(dev);
#endif
clear_bit(__TXGBE_RESETTING, &adapter->state);
}
static u8 txgbe_dcbnl_set_all(struct net_device *netdev)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
struct txgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg;
struct txgbe_hw *hw = &adapter->hw;
int ret = DCB_NO_HW_CHG;
u8 prio_tc[TXGBE_DCB_MAX_USER_PRIORITY] = { 0 };
/* Fail command if not in CEE mode */
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return ret;
adapter->dcb_set_bitmap |= txgbe_copy_dcb_cfg(adapter,
TXGBE_DCB_MAX_TRAFFIC_CLASS);
if (!adapter->dcb_set_bitmap)
return ret;
txgbe_dcb_unpack_map_cee(dcb_cfg, TXGBE_DCB_TX_CONFIG, prio_tc);
if (adapter->dcb_set_bitmap & (BIT_PG_TX | BIT_PG_RX)) {
/* Priority to TC mapping in CEE case default to 1:1 */
int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
#ifdef HAVE_MQPRIO
int i;
#endif
#if IS_ENABLED(CONFIG_FCOE)
if (adapter->netdev->features & NETIF_F_FCOE_MTU)
max_frame = max(max_frame, TXGBE_FCOE_JUMBO_FRAME_SIZE);
#endif
txgbe_dcb_calculate_tc_credits_cee(hw, dcb_cfg, max_frame,
TXGBE_DCB_TX_CONFIG);
txgbe_dcb_calculate_tc_credits_cee(hw, dcb_cfg, max_frame,
TXGBE_DCB_RX_CONFIG);
txgbe_dcb_hw_config_cee(hw, dcb_cfg);
#ifdef HAVE_MQPRIO
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
netdev_set_prio_tc_map(netdev, i, prio_tc[i]);
#endif /* HAVE_MQPRIO */
ret = DCB_HW_CHG_RST;
}
if (adapter->dcb_set_bitmap & BIT_PFC) {
if (dcb_cfg->pfc_mode_enable) {
u8 pfc_en;
txgbe_dcb_unpack_pfc_cee(dcb_cfg, prio_tc, &pfc_en);
txgbe_dcb_config_pfc(hw, pfc_en, prio_tc);
} else {
TCALL(hw, mac.ops.fc_enable);
}
txgbe_set_rx_drop_en(adapter);
if (ret != DCB_HW_CHG_RST)
ret = DCB_HW_CHG;
}
#if IS_ENABLED(CONFIG_FCOE)
/* Reprogam FCoE hardware offloads when the traffic class
* FCoE is using changes. This happens if the APP info
* changes or the up2tc mapping is updated.
*/
if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
adapter->fcoe.up_set = adapter->fcoe.up;
txgbe_dcbnl_devreset(netdev);
ret = DCB_HW_CHG_RST;
}
#endif /* CONFIG_FCOE */
adapter->dcb_set_bitmap = 0x00;
return ret;
}
static u8 txgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
{
#ifdef HAVE_DCBNL_IEEE
struct txgbe_adapter *adapter = netdev_priv(netdev);
#endif
switch (capid) {
case DCB_CAP_ATTR_PG:
*cap = true;
break;
case DCB_CAP_ATTR_PFC:
*cap = true;
break;
case DCB_CAP_ATTR_UP2TC:
*cap = false;
break;
case DCB_CAP_ATTR_PG_TCS:
*cap = 0x80;
break;
case DCB_CAP_ATTR_PFC_TCS:
*cap = 0x80;
break;
case DCB_CAP_ATTR_GSP:
*cap = true;
break;
case DCB_CAP_ATTR_BCN:
*cap = false;
break;
#ifdef HAVE_DCBNL_IEEE
case DCB_CAP_ATTR_DCBX:
*cap = adapter->dcbx_cap;
break;
#endif
default:
*cap = false;
break;
}
return 0;
}
#ifdef NUMTCS_RETURNS_U8
static u8 txgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
#else
static int txgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
#endif
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
u8 rval = 0;
if (adapter->flags & TXGBE_FLAG_DCB_ENABLED) {
switch (tcid) {
case DCB_NUMTCS_ATTR_PG:
*num = adapter->dcb_cfg.num_tcs.pg_tcs;
break;
case DCB_NUMTCS_ATTR_PFC:
*num = adapter->dcb_cfg.num_tcs.pfc_tcs;
break;
default:
rval = -EINVAL;
break;
}
} else {
rval = -EINVAL;
}
return rval;
}
#ifdef NUMTCS_RETURNS_U8
static u8 txgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
#else
static int txgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
#endif
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
u8 rval = 0;
if (adapter->flags & TXGBE_FLAG_DCB_ENABLED) {
switch (tcid) {
case DCB_NUMTCS_ATTR_PG:
adapter->dcb_cfg.num_tcs.pg_tcs = num;
break;
case DCB_NUMTCS_ATTR_PFC:
adapter->dcb_cfg.num_tcs.pfc_tcs = num;
break;
default:
rval = -EINVAL;
break;
}
} else {
rval = -EINVAL;
}
return rval;
}
static u8 txgbe_dcbnl_getpfcstate(struct net_device *netdev)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
return adapter->dcb_cfg.pfc_mode_enable;
}
static void txgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
adapter->temp_dcb_cfg.pfc_mode_enable = state;
return;
}
#ifdef HAVE_DCBNL_OPS_GETAPP
/**
* txgbe_dcbnl_getapp - retrieve the DCBX application user priority
* @netdev : the corresponding netdev
* @idtype : identifies the id as ether type or TCP/UDP port number
* @id: id is either ether type or TCP/UDP port number
*
* Returns : on success, returns a non-zero 802.1p user priority bitmap
* otherwise returns 0 as the invalid user priority bitmap to indicate an
* error.
*/
#ifdef HAVE_DCBNL_OPS_SETAPP_RETURN_INT
static int txgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
#else
static u8 txgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
#endif
{
u8 rval = 0;
#ifdef HAVE_DCBNL_IEEE
struct dcb_app app = {
.selector = idtype,
.protocol = id,
};
rval = dcb_getapp(netdev, &app);
#endif
switch (idtype) {
case DCB_APP_IDTYPE_ETHTYPE:
#if IS_ENABLED(CONFIG_FCOE)
if (id == ETH_P_FCOE)
rval = txgbe_fcoe_getapp(netdev);
#endif
break;
case DCB_APP_IDTYPE_PORTNUM:
break;
default:
break;
}
return rval;
}
/**
* txgbe_dcbnl_setapp - set the DCBX application user priority
* @netdev : the corresponding netdev
* @idtype : identifies the id as ether type or TCP/UDP port number
* @id: id is either ether type or TCP/UDP port number
* @up: the 802.1p user priority bitmap
*
* Returns : 0 on success or 1 on error
*/
#ifdef HAVE_DCBNL_OPS_SETAPP_RETURN_INT
static int txgbe_dcbnl_setapp(struct net_device *netdev,
#else
static u8 txgbe_dcbnl_setapp(struct net_device *netdev,
#endif
u8 idtype, u16 id, u8 up)
{
int err = 0;
#ifdef HAVE_DCBNL_IEEE
struct dcb_app app;
app.selector = idtype;
app.protocol = id;
app.priority = up;
err = dcb_setapp(netdev, &app);
#endif
switch (idtype) {
case DCB_APP_IDTYPE_ETHTYPE:
#if IS_ENABLED(CONFIG_FCOE)
if (id == ETH_P_FCOE) {
struct txgbe_adapter *adapter = netdev_priv(netdev);
adapter->fcoe.up = up ? ffs(up) - 1 : TXGBE_FCOE_DEFUP;
}
#endif
break;
case DCB_APP_IDTYPE_PORTNUM:
break;
default:
break;
}
return err;
}
#endif /* HAVE_DCBNL_OPS_GETAPP */
#ifdef HAVE_DCBNL_IEEE
static int txgbe_dcbnl_ieee_getets(struct net_device *dev,
struct ieee_ets *ets)
{
struct txgbe_adapter *adapter = netdev_priv(dev);
struct ieee_ets *my_ets = adapter->txgbe_ieee_ets;
/* No IEEE PFC settings available */
if (!my_ets)
return -EINVAL;
ets->ets_cap = adapter->dcb_cfg.num_tcs.pg_tcs;
ets->cbs = my_ets->cbs;
memcpy(ets->tc_tx_bw, my_ets->tc_tx_bw, sizeof(ets->tc_tx_bw));
memcpy(ets->tc_rx_bw, my_ets->tc_rx_bw, sizeof(ets->tc_rx_bw));
memcpy(ets->tc_tsa, my_ets->tc_tsa, sizeof(ets->tc_tsa));
memcpy(ets->prio_tc, my_ets->prio_tc, sizeof(ets->prio_tc));
return 0;
}
static int txgbe_dcbnl_ieee_setets(struct net_device *dev,
struct ieee_ets *ets)
{
struct txgbe_adapter *adapter = netdev_priv(dev);
int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN;
int i, err = 0;
__u8 max_tc = 0;
__u8 map_chg = 0;
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
return -EINVAL;
if (!adapter->txgbe_ieee_ets) {
adapter->txgbe_ieee_ets = kmalloc(sizeof(struct ieee_ets),
GFP_KERNEL);
if (!adapter->txgbe_ieee_ets)
return -ENOMEM;
/* initialize UP2TC mappings to invalid value */
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
adapter->txgbe_ieee_ets->prio_tc[i] =
IEEE_8021QAZ_MAX_TCS;
/* if possible update UP2TC mappings from HW */
TCALL(&adapter->hw, mac.ops.get_rtrup2tc,
adapter->txgbe_ieee_ets->prio_tc);
}
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
if (ets->prio_tc[i] > max_tc)
max_tc = ets->prio_tc[i];
if (ets->prio_tc[i] != adapter->txgbe_ieee_ets->prio_tc[i])
map_chg = 1;
}
memcpy(adapter->txgbe_ieee_ets, ets, sizeof(*adapter->txgbe_ieee_ets));
if (max_tc)
max_tc++;
if (max_tc > adapter->dcb_cfg.num_tcs.pg_tcs)
return -EINVAL;
if (max_tc != netdev_get_num_tc(dev))
err = txgbe_setup_tc(dev, max_tc);
else if (map_chg)
txgbe_dcbnl_devreset(dev);
if (err)
goto err_out;
err = txgbe_dcb_hw_ets(&adapter->hw, ets, max_frame);
err_out:
return err;
}
static int txgbe_dcbnl_ieee_getpfc(struct net_device *dev,
struct ieee_pfc *pfc)
{
struct txgbe_adapter *adapter = netdev_priv(dev);
struct ieee_pfc *my_pfc = adapter->txgbe_ieee_pfc;
int i;
/* No IEEE PFC settings available */
if (!my_pfc)
return -EINVAL;
pfc->pfc_cap = adapter->dcb_cfg.num_tcs.pfc_tcs;
pfc->pfc_en = my_pfc->pfc_en;
pfc->mbc = my_pfc->mbc;
pfc->delay = my_pfc->delay;
for (i = 0; i < TXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
pfc->requests[i] = adapter->stats.pxoffrxc[i];
pfc->indications[i] = adapter->stats.pxofftxc[i];
}
return 0;
}
static int txgbe_dcbnl_ieee_setpfc(struct net_device *dev,
struct ieee_pfc *pfc)
{
struct txgbe_adapter *adapter = netdev_priv(dev);
struct txgbe_hw *hw = &adapter->hw;
u8 *prio_tc;
int err;
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
return -EINVAL;
if (!adapter->txgbe_ieee_pfc) {
adapter->txgbe_ieee_pfc = kmalloc(sizeof(struct ieee_pfc),
GFP_KERNEL);
if (!adapter->txgbe_ieee_pfc)
return -ENOMEM;
}
prio_tc = adapter->txgbe_ieee_ets->prio_tc;
memcpy(adapter->txgbe_ieee_pfc, pfc, sizeof(*adapter->txgbe_ieee_pfc));
/* Enable link flow control parameters if PFC is disabled */
if (pfc->pfc_en)
err = txgbe_dcb_config_pfc(hw, pfc->pfc_en, prio_tc);
else
err = TCALL(hw, mac.ops.fc_enable);
txgbe_set_rx_drop_en(adapter);
return err;
}
static int txgbe_dcbnl_ieee_setapp(struct net_device *dev,
struct dcb_app *app)
{
struct txgbe_adapter *adapter = netdev_priv(dev);
int err = -EINVAL;
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
return err;
err = dcb_ieee_setapp(dev, app);
#if IS_ENABLED(CONFIG_FCOE)
if (!err && app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&
app->protocol == ETH_P_FCOE) {
u8 app_mask = dcb_ieee_getapp_mask(dev, app);
if (app_mask & (1 << adapter->fcoe.up))
return err;
adapter->fcoe.up = app->priority;
adapter->fcoe.up_set = adapter->fcoe.up;
txgbe_dcbnl_devreset(dev);
}
#endif
return 0;
}
#ifdef HAVE_DCBNL_IEEE_DELAPP
static int txgbe_dcbnl_ieee_delapp(struct net_device *dev,
struct dcb_app *app)
{
struct txgbe_adapter *adapter = netdev_priv(dev);
int err;
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
return -EINVAL;
err = dcb_ieee_delapp(dev, app);
#if IS_ENABLED(CONFIG_FCOE)
if (!err && app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&
app->protocol == ETH_P_FCOE) {
u8 app_mask = dcb_ieee_getapp_mask(dev, app);
if (app_mask & (1 << adapter->fcoe.up))
return err;
adapter->fcoe.up = app_mask ?
ffs(app_mask) - 1 : TXGBE_FCOE_DEFUP;
txgbe_dcbnl_devreset(dev);
}
#endif
return err;
}
#endif /* HAVE_DCBNL_IEEE_DELAPP */
static u8 txgbe_dcbnl_getdcbx(struct net_device *dev)
{
struct txgbe_adapter *adapter = netdev_priv(dev);
return adapter->dcbx_cap;
}
static u8 txgbe_dcbnl_setdcbx(struct net_device *dev, u8 mode)
{
struct txgbe_adapter *adapter = netdev_priv(dev);
struct ieee_ets ets = { .ets_cap = 0 };
struct ieee_pfc pfc = { .pfc_en = 0 };
/* no support for LLD_MANAGED modes or CEE+IEEE */
if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) ||
!(mode & DCB_CAP_DCBX_HOST))
return 1;
if (mode == adapter->dcbx_cap)
return 0;
adapter->dcbx_cap = mode;
/* ETS and PFC defaults */
ets.ets_cap = 8;
pfc.pfc_cap = 8;
if (mode & DCB_CAP_DCBX_VER_IEEE) {
txgbe_dcbnl_ieee_setets(dev, &ets);
txgbe_dcbnl_ieee_setpfc(dev, &pfc);
} else if (mode & DCB_CAP_DCBX_VER_CEE) {
u8 mask = (BIT_PFC | BIT_PG_TX | BIT_PG_RX | BIT_APP_UPCHG);
adapter->dcb_set_bitmap |= mask;
txgbe_dcbnl_set_all(dev);
} else {
/* Drop into single TC mode strict priority as this
* indicates CEE and IEEE versions are disabled
*/
txgbe_dcbnl_ieee_setets(dev, &ets);
txgbe_dcbnl_ieee_setpfc(dev, &pfc);
txgbe_setup_tc(dev, 0);
}
return 0;
}
#endif
struct dcbnl_rtnl_ops dcbnl_ops = {
#ifdef HAVE_DCBNL_IEEE
.ieee_getets = txgbe_dcbnl_ieee_getets,
.ieee_setets = txgbe_dcbnl_ieee_setets,
.ieee_getpfc = txgbe_dcbnl_ieee_getpfc,
.ieee_setpfc = txgbe_dcbnl_ieee_setpfc,
.ieee_setapp = txgbe_dcbnl_ieee_setapp,
#ifdef HAVE_DCBNL_IEEE_DELAPP
.ieee_delapp = txgbe_dcbnl_ieee_delapp,
#endif
#endif
.getstate = txgbe_dcbnl_get_state,
.setstate = txgbe_dcbnl_set_state,
.getpermhwaddr = txgbe_dcbnl_get_perm_hw_addr,
.setpgtccfgtx = txgbe_dcbnl_set_pg_tc_cfg_tx,
.setpgbwgcfgtx = txgbe_dcbnl_set_pg_bwg_cfg_tx,
.setpgtccfgrx = txgbe_dcbnl_set_pg_tc_cfg_rx,
.setpgbwgcfgrx = txgbe_dcbnl_set_pg_bwg_cfg_rx,
.getpgtccfgtx = txgbe_dcbnl_get_pg_tc_cfg_tx,
.getpgbwgcfgtx = txgbe_dcbnl_get_pg_bwg_cfg_tx,
.getpgtccfgrx = txgbe_dcbnl_get_pg_tc_cfg_rx,
.getpgbwgcfgrx = txgbe_dcbnl_get_pg_bwg_cfg_rx,
.setpfccfg = txgbe_dcbnl_set_pfc_cfg,
.getpfccfg = txgbe_dcbnl_get_pfc_cfg,
.setall = txgbe_dcbnl_set_all,
.getcap = txgbe_dcbnl_getcap,
.getnumtcs = txgbe_dcbnl_getnumtcs,
.setnumtcs = txgbe_dcbnl_setnumtcs,
.getpfcstate = txgbe_dcbnl_getpfcstate,
.setpfcstate = txgbe_dcbnl_setpfcstate,
#ifdef HAVE_DCBNL_OPS_GETAPP
.getapp = txgbe_dcbnl_getapp,
.setapp = txgbe_dcbnl_setapp,
#endif
#ifdef HAVE_DCBNL_IEEE
.getdcbx = txgbe_dcbnl_getdcbx,
.setdcbx = txgbe_dcbnl_setdcbx,
#endif
};
#endif /* CONFIG_DCB */

801
drivers/net/ethernet/wangxun/txgbe/txgbe_debugfs.c Normal file
View File

@ -0,0 +1,801 @@
/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_debugfs.c, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#include "txgbe.h"
#ifdef HAVE_TXGBE_DEBUG_FS
#include <linux/debugfs.h>
#include <linux/module.h>
static struct dentry *txgbe_dbg_root;
static int txgbe_data_mode;
#define TXGBE_DATA_FUNC(dm) ((dm) & ~0xFFFF)
#define TXGBE_DATA_ARGS(dm) ((dm) & 0xFFFF)
enum txgbe_data_func {
TXGBE_FUNC_NONE = (0 << 16),
TXGBE_FUNC_DUMP_BAR = (1 << 16),
TXGBE_FUNC_DUMP_RDESC = (2 << 16),
TXGBE_FUNC_DUMP_TDESC = (3 << 16),
TXGBE_FUNC_FLASH_READ = (4 << 16),
TXGBE_FUNC_FLASH_WRITE = (5 << 16),
};
/**
* data operation
**/
ssize_t
txgbe_simple_read_from_pcibar(struct txgbe_adapter *adapter, int res,
void __user *buf, size_t size, loff_t *ppos)
{
loff_t pos = *ppos;
u32 miss, len, limit = pci_resource_len(adapter->pdev, res);
if (pos < 0)
return 0;
limit = (pos + size <= limit ? pos + size : limit);
for (miss = 0; pos < limit && !miss; buf += len, pos += len) {
u32 val = 0, reg = round_down(pos, 4);
u32 off = pos - reg;
len = (reg + 4 <= limit ? 4 - off : 4 - off - (limit - reg - 4));
val = txgbe_rd32(adapter->io_addr + reg);
miss = copy_to_user(buf, &val + off, len);
}
size = pos - *ppos - miss;
*ppos += size;
return size;
}
ssize_t
txgbe_simple_read_from_flash(struct txgbe_adapter *adapter,
void __user *buf, size_t size, loff_t *ppos)
{
struct txgbe_hw *hw = &adapter->hw;
loff_t pos = *ppos;
size_t ret = 0;
loff_t rpos, rtail;
void __user *to = buf;
size_t available = adapter->hw.flash.dword_size << 2;
if (pos < 0)
return -EINVAL;
if (pos >= available || !size)
return 0;
if (size > available - pos)
size = available - pos;
rpos = round_up(pos, 4);
rtail = round_down(pos + size, 4);
if (rtail < rpos)
return 0;
to += rpos - pos;
while (rpos <= rtail) {
u32 value = txgbe_rd32(adapter->io_addr + rpos);
if (TCALL(hw, flash.ops.write_buffer, rpos>>2, 1, &value)) {
ret = size;
break;
}
if (4 == copy_to_user(to, &value, 4)) {
ret = size;
break;
}
to += 4;
rpos += 4;
}
if (ret == size)
return -EFAULT;
size -= ret;
*ppos = pos + size;
return size;
}
ssize_t
txgbe_simple_write_to_flash(struct txgbe_adapter *adapter,
const void __user *from, size_t size, loff_t *ppos, size_t available)
{
return size;
}
static ssize_t
txgbe_dbg_data_ops_read(struct file *filp, char __user *buffer,
size_t size, loff_t *ppos)
{
struct txgbe_adapter *adapter = filp->private_data;
u32 func = TXGBE_DATA_FUNC(txgbe_data_mode);
rmb();
switch (func) {
case TXGBE_FUNC_DUMP_BAR: {
u32 bar = TXGBE_DATA_ARGS(txgbe_data_mode);
return txgbe_simple_read_from_pcibar(adapter, bar, buffer, size,
ppos);
}
case TXGBE_FUNC_FLASH_READ: {
return txgbe_simple_read_from_flash(adapter, buffer, size, ppos);
}
case TXGBE_FUNC_DUMP_RDESC: {
struct txgbe_ring *ring;
u32 queue = TXGBE_DATA_ARGS(txgbe_data_mode);
if (queue >= adapter->num_rx_queues)
return 0;
queue += VMDQ_P(0) * adapter->queues_per_pool;
ring = adapter->rx_ring[queue];
return simple_read_from_buffer(buffer, size, ppos,
ring->desc, ring->size);
}
case TXGBE_FUNC_DUMP_TDESC: {
struct txgbe_ring *ring;
u32 queue = TXGBE_DATA_ARGS(txgbe_data_mode);
if (queue >= adapter->num_tx_queues)
return 0;
queue += VMDQ_P(0) * adapter->queues_per_pool;
ring = adapter->tx_ring[queue];
return simple_read_from_buffer(buffer, size, ppos,
ring->desc, ring->size);
}
default:
break;
}
return 0;
}
static ssize_t
txgbe_dbg_data_ops_write(struct file *filp,
const char __user *buffer,
size_t size, loff_t *ppos)
{
struct txgbe_adapter *adapter = filp->private_data;
u32 func = TXGBE_DATA_FUNC(txgbe_data_mode);
rmb();
switch (func) {
case TXGBE_FUNC_FLASH_WRITE: {
u32 size = TXGBE_DATA_ARGS(txgbe_data_mode);
if (size > adapter->hw.flash.dword_size << 2)
size = adapter->hw.flash.dword_size << 2;
return txgbe_simple_write_to_flash(adapter, buffer, size, ppos, size);
}
default:
break;
}
return size;
}
static struct file_operations txgbe_dbg_data_ops_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = txgbe_dbg_data_ops_read,
.write = txgbe_dbg_data_ops_write,
};
/**
* reg_ops operation
**/
static char txgbe_dbg_reg_ops_buf[256] = "";
static ssize_t
txgbe_dbg_reg_ops_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
struct txgbe_adapter *adapter = filp->private_data;
char *buf;
int len;
/* don't allow partial reads */
if (*ppos != 0)
return 0;
buf = kasprintf(GFP_KERNEL, "%s: mode=0x%08x\n%s\n",
adapter->netdev->name, txgbe_data_mode,
txgbe_dbg_reg_ops_buf);
if (!buf)
return -ENOMEM;
if (count < strlen(buf)) {
kfree(buf);
return -ENOSPC;
}
len = simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
kfree(buf);
return len;
}
static ssize_t
txgbe_dbg_reg_ops_write(struct file *filp,
const char __user *buffer,
size_t count, loff_t *ppos)
{
struct txgbe_adapter *adapter = filp->private_data;
char *pc = txgbe_dbg_reg_ops_buf;
int len;
/* don't allow partial writes */
if (*ppos != 0)
return 0;
if (count >= sizeof(txgbe_dbg_reg_ops_buf))
return -ENOSPC;
len = simple_write_to_buffer(txgbe_dbg_reg_ops_buf,
sizeof(txgbe_dbg_reg_ops_buf)-1,
ppos,
buffer,
count);
if (len < 0)
return len;
pc[len] = '\0';
if (strncmp(pc, "dump", 4) == 0) {
u32 mode = 0;
u16 args;
pc += 4;
pc += strspn(pc, " \t");
if (!strncmp(pc, "bar", 3)) {
pc += 3;
mode = TXGBE_FUNC_DUMP_BAR;
} else if (!strncmp(pc, "rdesc", 5)) {
pc += 5;
mode = TXGBE_FUNC_DUMP_RDESC;
} else if (!strncmp(pc, "tdesc", 5)) {
pc += 5;
mode = TXGBE_FUNC_DUMP_TDESC;
} else {
txgbe_dump(adapter);
}
if (mode && 1 == sscanf(pc, "%hu", &args)) {
mode |= args;
}
txgbe_data_mode = mode;
} else if (strncmp(pc, "flash", 4) == 0) {
u32 mode = 0;
u16 args;
pc += 5;
pc += strspn(pc, " \t");
if (!strncmp(pc, "read", 3)) {
pc += 4;
mode = TXGBE_FUNC_FLASH_READ;
} else if (!strncmp(pc, "write", 5)) {
pc += 5;
mode = TXGBE_FUNC_FLASH_WRITE;
}
if (mode && 1 == sscanf(pc, "%hu", &args)) {
mode |= args;
}
txgbe_data_mode = mode;
} else if (strncmp(txgbe_dbg_reg_ops_buf, "write", 5) == 0) {
u32 reg, value;
int cnt;
cnt = sscanf(&txgbe_dbg_reg_ops_buf[5], "%x %x", &reg, &value);
if (cnt == 2) {
wr32(&adapter->hw, reg, value);
e_dev_info("write: 0x%08x = 0x%08x\n", reg, value);
} else {
e_dev_info("write <reg> <value>\n");
}
} else if (strncmp(txgbe_dbg_reg_ops_buf, "read", 4) == 0) {
u32 reg, value;
int cnt;
cnt = sscanf(&txgbe_dbg_reg_ops_buf[4], "%x", &reg);
if (cnt == 1) {
value = rd32(&adapter->hw, reg);
e_dev_info("read 0x%08x = 0x%08x\n", reg, value);
} else {
e_dev_info("read <reg>\n");
}
} else {
e_dev_info("Unknown command %s\n", txgbe_dbg_reg_ops_buf);
e_dev_info("Available commands:\n");
e_dev_info(" read <reg>\n");
e_dev_info(" write <reg> <value>\n");
}
return count;
}
static const struct file_operations txgbe_dbg_reg_ops_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = txgbe_dbg_reg_ops_read,
.write = txgbe_dbg_reg_ops_write,
};
/**
* netdev_ops operation
**/
static char txgbe_dbg_netdev_ops_buf[256] = "";
static ssize_t
txgbe_dbg_netdev_ops_read(struct file *filp,
char __user *buffer,
size_t count, loff_t *ppos)
{
struct txgbe_adapter *adapter = filp->private_data;
char *buf;
int len;
/* don't allow partial reads */
if (*ppos != 0)
return 0;
buf = kasprintf(GFP_KERNEL, "%s: mode=0x%08x\n%s\n",
adapter->netdev->name, txgbe_data_mode,
txgbe_dbg_netdev_ops_buf);
if (!buf)
return -ENOMEM;
if (count < strlen(buf)) {
kfree(buf);
return -ENOSPC;
}
len = simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
kfree(buf);
return len;
}
static ssize_t
txgbe_dbg_netdev_ops_write(struct file *filp,
const char __user *buffer,
size_t count, loff_t *ppos)
{
struct txgbe_adapter *adapter = filp->private_data;
int len;
/* don't allow partial writes */
if (*ppos != 0)
return 0;
if (count >= sizeof(txgbe_dbg_netdev_ops_buf))
return -ENOSPC;
len = simple_write_to_buffer(txgbe_dbg_netdev_ops_buf,
sizeof(txgbe_dbg_netdev_ops_buf)-1,
ppos,
buffer,
count);
if (len < 0)
return len;
txgbe_dbg_netdev_ops_buf[len] = '\0';
if (strncmp(txgbe_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
#if defined(HAVE_TX_TIMEOUT_TXQUEUE)
adapter->netdev->netdev_ops->ndo_tx_timeout(adapter->netdev, 0);
#elif defined(HAVE_NET_DEVICE_OPS)
adapter->netdev->netdev_ops->ndo_tx_timeout(adapter->netdev);
#else
adapter->netdev->tx_timeout(adapter->netdev);
#endif /* HAVE_NET_DEVICE_OPS */
e_dev_info("tx_timeout called\n");
} else {
e_dev_info("Unknown command: %s\n", txgbe_dbg_netdev_ops_buf);
e_dev_info("Available commands:\n");
e_dev_info(" tx_timeout\n");
}
return count;
}
static struct file_operations txgbe_dbg_netdev_ops_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = txgbe_dbg_netdev_ops_read,
.write = txgbe_dbg_netdev_ops_write,
};
/**
* txgbe_dbg_adapter_init - setup the debugfs directory for the adapter
* @adapter: the adapter that is starting up
**/
void txgbe_dbg_adapter_init(struct txgbe_adapter *adapter)
{
const char *name = pci_name(adapter->pdev);
struct dentry *pfile;
adapter->txgbe_dbg_adapter = debugfs_create_dir(name, txgbe_dbg_root);
if (!adapter->txgbe_dbg_adapter) {
e_dev_err("debugfs entry for %s failed\n", name);
return;
}
pfile = debugfs_create_file("data", 0600,
adapter->txgbe_dbg_adapter, adapter,
&txgbe_dbg_data_ops_fops);
if (!pfile)
e_dev_err("debugfs netdev_ops for %s failed\n", name);
pfile = debugfs_create_file("reg_ops", 0600,
adapter->txgbe_dbg_adapter, adapter,
&txgbe_dbg_reg_ops_fops);
if (!pfile)
e_dev_err("debugfs reg_ops for %s failed\n", name);
pfile = debugfs_create_file("netdev_ops", 0600,
adapter->txgbe_dbg_adapter, adapter,
&txgbe_dbg_netdev_ops_fops);
if (!pfile)
e_dev_err("debugfs netdev_ops for %s failed\n", name);
}
/**
* txgbe_dbg_adapter_exit - clear out the adapter's debugfs entries
* @pf: the pf that is stopping
**/
void txgbe_dbg_adapter_exit(struct txgbe_adapter *adapter)
{
if (adapter->txgbe_dbg_adapter)
debugfs_remove_recursive(adapter->txgbe_dbg_adapter);
adapter->txgbe_dbg_adapter = NULL;
}
/**
* txgbe_dbg_init - start up debugfs for the driver
**/
void txgbe_dbg_init(void)
{
txgbe_dbg_root = debugfs_create_dir(txgbe_driver_name, NULL);
if (txgbe_dbg_root == NULL)
pr_err("init of debugfs failed\n");
}
/**
* txgbe_dbg_exit - clean out the driver's debugfs entries
**/
void txgbe_dbg_exit(void)
{
debugfs_remove_recursive(txgbe_dbg_root);
}
#endif /* HAVE_TXGBE_DEBUG_FS */
struct txgbe_reg_info {
u32 offset;
u32 length;
char *name;
};
static struct txgbe_reg_info txgbe_reg_info_tbl[] = {
/* General Registers */
{TXGBE_CFG_PORT_CTL, 1, "CTRL"},
{TXGBE_CFG_PORT_ST, 1, "STATUS"},
/* RX Registers */
{TXGBE_PX_RR_CFG(0), 1, "SRRCTL"},
{TXGBE_PX_RR_RP(0), 1, "RDH"},
{TXGBE_PX_RR_WP(0), 1, "RDT"},
{TXGBE_PX_RR_CFG(0), 1, "RXDCTL"},
{TXGBE_PX_RR_BAL(0), 1, "RDBAL"},
{TXGBE_PX_RR_BAH(0), 1, "RDBAH"},
/* TX Registers */
{TXGBE_PX_TR_BAL(0), 1, "TDBAL"},
{TXGBE_PX_TR_BAH(0), 1, "TDBAH"},
{TXGBE_PX_TR_RP(0), 1, "TDH"},
{TXGBE_PX_TR_WP(0), 1, "TDT"},
{TXGBE_PX_TR_CFG(0), 1, "TXDCTL"},
/* MACVLAN */
{TXGBE_PSR_MAC_SWC_VM_H, 128, "PSR_MAC_SWC_VM"},
{TXGBE_PSR_MAC_SWC_AD_L, 128, "PSR_MAC_SWC_AD"},
{TXGBE_PSR_VLAN_TBL(0), 128, "PSR_VLAN_TBL"},
/* QoS */
{TXGBE_TDM_RP_RATE, 128, "TDM_RP_RATE"},
/* List Terminator */
{ .name = NULL }
};
/**
* txgbe_regdump - register printout routine
**/
static void
txgbe_regdump(struct txgbe_hw *hw, struct txgbe_reg_info *reg_info)
{
#if 0
int i, n = 0;
u32 buffer[32*8];
switch (reg_info->offset) {
case TXGBE_PSR_MAC_SWC_VM_H:
for (i = 0; i < reg_info->length; i++) {
wr32(hw, TXGBE_PSR_MAC_SWC_IDX, i);
buffer[n++] =
rd32(hw, TXGBE_PSR_MAC_SWC_VM_H);
buffer[n++] =
rd32(hw, TXGBE_PSR_MAC_SWC_VM_L);
}
break;
case TXGBE_PSR_MAC_SWC_AD_L:
for (i = 0; i < reg_info->length; i++) {
wr32(hw, TXGBE_PSR_MAC_SWC_IDX, i);
buffer[n++] =
rd32(hw, TXGBE_PSR_MAC_SWC_AD_H);
buffer[n++] =
rd32(hw, TXGBE_PSR_MAC_SWC_AD_L);
}
break;
case TXGBE_TDM_RP_RATE:
for (i = 0; i < reg_info->length; i++) {
wr32(hw, TXGBE_TDM_RP_IDX, i);
buffer[n++] = rd32(hw, TXGBE_TDM_RP_RATE);
}
break;
default:
for (i = 0; i < reg_info->length; i++) {
buffer[n++] = rd32(hw,
reg_info->offset + 4*i);
}
break;
}
#if 0
for (i = 0; n && i < 32; i++) {
pr_info("%-20s[%02x-%02x]", reg_info->name, i*8, i*8 + 7);
for (j = 0; n && j < 8; j++, n--)
pr_cont(" %08x", buffer[i*8 + j]);
pr_cont("\n");
}
#endif
BUG_ON(n);
#endif
}
/**
* txgbe_dump - Print registers, tx-rings and rx-rings
**/
void txgbe_dump(struct txgbe_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct txgbe_hw *hw = &adapter->hw;
struct txgbe_reg_info *reg_info;
int n = 0;
struct txgbe_ring *tx_ring;
struct txgbe_tx_buffer *tx_buffer;
union txgbe_tx_desc *tx_desc;
struct my_u0 { u64 a; u64 b; } *u0;
struct txgbe_ring *rx_ring;
union txgbe_rx_desc *rx_desc;
struct txgbe_rx_buffer *rx_buffer_info;
u32 staterr;
int i = 0;
if (!netif_msg_hw(adapter))
return;
/* Print Registers */
dev_info(&adapter->pdev->dev, "Register Dump\n");
pr_info(" Register Name Value\n");
for (reg_info = txgbe_reg_info_tbl; reg_info->name; reg_info++) {
txgbe_regdump(hw, reg_info);
}
/* Print TX Ring Summary */
if (!netdev || !netif_running(netdev))
return;
dev_info(&adapter->pdev->dev, "TX Rings Summary\n");
pr_info(" %s %s %s %s\n",
"Queue [NTU] [NTC] [bi(ntc)->dma ]",
"leng", "ntw", "timestamp");
for (n = 0; n < adapter->num_tx_queues; n++) {
tx_ring = adapter->tx_ring[n];
tx_buffer = &tx_ring->tx_buffer_info[tx_ring->next_to_clean];
pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n",
n, tx_ring->next_to_use, tx_ring->next_to_clean,
(u64)dma_unmap_addr(tx_buffer, dma),
dma_unmap_len(tx_buffer, len),
tx_buffer->next_to_watch,
(u64)tx_buffer->time_stamp);
}
/* Print TX Rings */
if (!netif_msg_tx_done(adapter))
goto rx_ring_summary;
dev_info(&adapter->pdev->dev, "TX Rings Dump\n");
/* Transmit Descriptor Formats
*
* Transmit Descriptor (Read)
* +--------------------------------------------------------------+
* 0 | Buffer Address [63:0] |
* +--------------------------------------------------------------+
* 8 |PAYLEN |POPTS|CC|IDX |STA |DCMD |DTYP |MAC |RSV |DTALEN |
* +--------------------------------------------------------------+
* 63 46 45 40 39 38 36 35 32 31 24 23 20 19 18 17 16 15 0
*
* Transmit Descriptor (Write-Back)
* +--------------------------------------------------------------+
* 0 | RSV [63:0] |
* +--------------------------------------------------------------+
* 8 | RSV | STA | RSV |
* +--------------------------------------------------------------+
* 63 36 35 32 31 0
*/
for (n = 0; n < adapter->num_tx_queues; n++) {
tx_ring = adapter->tx_ring[n];
pr_info("------------------------------------\n");
pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index);
pr_info("------------------------------------\n");
pr_info("%s%s %s %s %s %s\n",
"T [desc] [address 63:0 ] ",
"[PlPOIdStDDt Ln] [bi->dma ] ",
"leng", "ntw", "timestamp", "bi->skb");
for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
tx_desc = TXGBE_TX_DESC(tx_ring, i);
tx_buffer = &tx_ring->tx_buffer_info[i];
u0 = (struct my_u0 *)tx_desc;
if (dma_unmap_len(tx_buffer, len) > 0) {
pr_info("T [0x%03X] %016llX %016llX %016llX "
"%08X %p %016llX %p",
i,
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
(u64)dma_unmap_addr(tx_buffer, dma),
dma_unmap_len(tx_buffer, len),
tx_buffer->next_to_watch,
(u64)tx_buffer->time_stamp,
tx_buffer->skb);
if (i == tx_ring->next_to_use &&
i == tx_ring->next_to_clean)
pr_cont(" NTC/U\n");
else if (i == tx_ring->next_to_use)
pr_cont(" NTU\n");
else if (i == tx_ring->next_to_clean)
pr_cont(" NTC\n");
else
pr_cont("\n");
if (netif_msg_pktdata(adapter) &&
tx_buffer->skb)
print_hex_dump(KERN_INFO, "",
DUMP_PREFIX_ADDRESS, 16, 1,
tx_buffer->skb->data,
dma_unmap_len(tx_buffer, len),
true);
}
}
}
/* Print RX Rings Summary */
rx_ring_summary:
dev_info(&adapter->pdev->dev, "RX Rings Summary\n");
pr_info("Queue [NTU] [NTC]\n");
for (n = 0; n < adapter->num_rx_queues; n++) {
rx_ring = adapter->rx_ring[n];
pr_info("%5d %5X %5X\n",
n, rx_ring->next_to_use, rx_ring->next_to_clean);
}
/* Print RX Rings */
if (!netif_msg_rx_status(adapter))
return;
dev_info(&adapter->pdev->dev, "RX Rings Dump\n");
/* Receive Descriptor Formats
*
* Receive Descriptor (Read)
* 63 1 0
* +-----------------------------------------------------+
* 0 | Packet Buffer Address [63:1] |A0/NSE|
* +----------------------------------------------+------+
* 8 | Header Buffer Address [63:1] | DD |
* +-----------------------------------------------------+
*
*
* Receive Descriptor (Write-Back)
*
* 63 48 47 32 31 30 21 20 17 16 4 3 0
* +------------------------------------------------------+
* 0 |RSS / Frag Checksum|SPH| HDR_LEN |RSC- |Packet| RSS |
* |/ RTT / PCoE_PARAM | | | CNT | Type | Type |
* |/ Flow Dir Flt ID | | | | | |
* +------------------------------------------------------+
* 8 | VLAN Tag | Length |Extended Error| Xtnd Status/NEXTP |
* +------------------------------------------------------+
* 63 48 47 32 31 20 19 0
*/
for (n = 0; n < adapter->num_rx_queues; n++) {
rx_ring = adapter->rx_ring[n];
pr_info("------------------------------------\n");
pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index);
pr_info("------------------------------------\n");
pr_info("%s%s%s",
"R [desc] [ PktBuf A0] ",
"[ HeadBuf DD] [bi->dma ] [bi->skb ] ",
"<-- Adv Rx Read format\n");
pr_info("%s%s%s",
"RWB[desc] [PcsmIpSHl PtRs] ",
"[vl er S cks ln] ---------------- [bi->skb ] ",
"<-- Adv Rx Write-Back format\n");
for (i = 0; i < rx_ring->count; i++) {
rx_buffer_info = &rx_ring->rx_buffer_info[i];
rx_desc = TXGBE_RX_DESC(rx_ring, i);
u0 = (struct my_u0 *)rx_desc;
staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
if (staterr & TXGBE_RXD_STAT_DD) {
/* Descriptor Done */
pr_info("RWB[0x%03X] %016llX "
"%016llX ---------------- %p", i,
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
rx_buffer_info->skb);
} else {
#ifndef CONFIG_TXGBE_DISABLE_PACKET_SPLIT
pr_info("R [0x%03X] %016llX "
"%016llX %016llX %p", i,
le64_to_cpu(u0->a),
le64_to_cpu(u0->b),
(u64)rx_buffer_info->page_dma,
rx_buffer_info->skb);
if (netif_msg_pktdata(adapter) &&
rx_buffer_info->page_dma) {
print_hex_dump(KERN_INFO, "",
DUMP_PREFIX_ADDRESS, 16, 1,
page_address(rx_buffer_info->page) +
rx_buffer_info->page_offset,
txgbe_rx_bufsz(rx_ring), true);
}
#endif
}
if (i == rx_ring->next_to_use)
pr_cont(" NTU\n");
else if (i == rx_ring->next_to_clean)
pr_cont(" NTC\n");
else
pr_cont("\n");
}
}
}

4924
drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c Normal file
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File diff suppressed because it is too large Load Diff

984
drivers/net/ethernet/wangxun/txgbe/txgbe_fcoe.c Normal file
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@ -0,0 +1,984 @@
/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_fcoe.c, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#include "txgbe.h"
#if IS_ENABLED(CONFIG_FCOE)
#if IS_ENABLED(CONFIG_DCB)
#include "txgbe_dcb.h"
#endif /* CONFIG_DCB */
#include <linux/if_ether.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/fc/fc_fs.h>
#include <scsi/fc/fc_fcoe.h>
#include <scsi/libfc.h>
#include <scsi/libfcoe.h>
/**
* txgbe_fcoe_clear_ddp - clear the given ddp context
* @ddp - ptr to the txgbe_fcoe_ddp
*
* Returns : none
*
*/
static inline void txgbe_fcoe_clear_ddp(struct txgbe_fcoe_ddp *ddp)
{
ddp->len = 0;
ddp->err = 1;
ddp->udl = NULL;
ddp->udp = 0UL;
ddp->sgl = NULL;
ddp->sgc = 0;
}
/**
* txgbe_fcoe_ddp_put - free the ddp context for a given xid
* @netdev: the corresponding net_device
* @xid: the xid that corresponding ddp will be freed
*
* This is the implementation of net_device_ops.ndo_fcoe_ddp_done
* and it is expected to be called by ULD, i.e., FCP layer of libfc
* to release the corresponding ddp context when the I/O is done.
*
* Returns : data length already ddp-ed in bytes
*/
int txgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid)
{
int len = 0;
struct txgbe_fcoe *fcoe;
struct txgbe_adapter *adapter;
struct txgbe_hw *hw;
struct txgbe_fcoe_ddp *ddp;
u32 fcbuff;
if (!netdev)
goto out_ddp_put;
if (xid > netdev->fcoe_ddp_xid)
goto out_ddp_put;
adapter = netdev_priv(netdev);
hw = &adapter->hw;
fcoe = &adapter->fcoe;
ddp = &fcoe->ddp[xid];
if (!ddp->udl)
goto out_ddp_put;
len = ddp->len;
/* if there an error, force to invalidate ddp context */
if (ddp->err) {
/* other hardware requires DDP FCoE lock */
spin_lock_bh(&fcoe->lock);
wr32(hw, TXGBE_PSR_FC_FLT_CTXT, 0);
wr32(hw, TXGBE_PSR_FC_FLT_RW,
(xid | TXGBE_PSR_FC_FLT_RW_WE));
wr32(hw, TXGBE_RDM_FCBUF, 0);
wr32(hw, TXGBE_RDM_FCRW,
(xid | TXGBE_RDM_FCRW_WE));
/* read FCBUFF to check context invalidated */
wr32(hw, TXGBE_RDM_FCRW,
(xid | TXGBE_RDM_FCRW_RE));
fcbuff = rd32(hw, TXGBE_RDM_FCBUF);
spin_unlock_bh(&fcoe->lock);
/* guaranteed to be invalidated after 100us */
if (fcbuff & TXGBE_RDM_FCBUF_VALID)
udelay(100);
}
if (ddp->sgl)
dma_unmap_sg(pci_dev_to_dev(adapter->pdev), ddp->sgl, ddp->sgc,
DMA_FROM_DEVICE);
if (ddp->pool) {
dma_pool_free(ddp->pool, ddp->udl, ddp->udp);
ddp->pool = NULL;
}
txgbe_fcoe_clear_ddp(ddp);
out_ddp_put:
return len;
}
/**
* txgbe_fcoe_ddp_setup - called to set up ddp context
* @netdev: the corresponding net_device
* @xid: the exchange id requesting ddp
* @sgl: the scatter-gather list for this request
* @sgc: the number of scatter-gather items
*
* Returns : 1 for success and 0 for no ddp
*/
static int txgbe_fcoe_ddp_setup(struct net_device *netdev, u16 xid,
struct scatterlist *sgl, unsigned int sgc,
int target_mode)
{
struct txgbe_adapter *adapter;
struct txgbe_hw *hw;
struct txgbe_fcoe *fcoe;
struct txgbe_fcoe_ddp *ddp;
struct txgbe_fcoe_ddp_pool *ddp_pool;
struct scatterlist *sg;
unsigned int i, j, dmacount;
unsigned int len;
static const unsigned int bufflen = TXGBE_FCBUFF_MIN;
unsigned int firstoff = 0;
unsigned int lastsize;
unsigned int thisoff = 0;
unsigned int thislen = 0;
u32 fcbuff, fcdmarw, fcfltrw, fcfltctxt;
dma_addr_t addr = 0;
if (!netdev || !sgl || !sgc)
return 0;
adapter = netdev_priv(netdev);
if (xid > netdev->fcoe_ddp_xid) {
e_warn(drv, "xid=0x%x out-of-range\n", xid);
return 0;
}
/* no DDP if we are already down or resetting */
if (test_bit(__TXGBE_DOWN, &adapter->state) ||
test_bit(__TXGBE_RESETTING, &adapter->state))
return 0;
fcoe = &adapter->fcoe;
ddp = &fcoe->ddp[xid];
if (ddp->sgl) {
e_err(drv, "xid 0x%x w/ non-null sgl=%p nents=%d\n",
xid, ddp->sgl, ddp->sgc);
return 0;
}
txgbe_fcoe_clear_ddp(ddp);
if (!fcoe->ddp_pool) {
e_warn(drv, "No ddp_pool resources allocated\n");
return 0;
}
ddp_pool = per_cpu_ptr(fcoe->ddp_pool, get_cpu());
if (!ddp_pool->pool) {
e_warn(drv, "xid=0x%x no ddp pool for fcoe\n", xid);
goto out_noddp;
}
/* setup dma from scsi command sgl */
dmacount = dma_map_sg(pci_dev_to_dev(adapter->pdev), sgl, sgc,
DMA_FROM_DEVICE);
if (dmacount == 0) {
e_err(drv, "xid 0x%x DMA map error\n", xid);
goto out_noddp;
}
/* alloc the udl from per cpu ddp pool */
ddp->udl = dma_pool_alloc(ddp_pool->pool, GFP_ATOMIC, &ddp->udp);
if (!ddp->udl) {
e_err(drv, "failed allocated ddp context\n");
goto out_noddp_unmap;
}
ddp->pool = ddp_pool->pool;
ddp->sgl = sgl;
ddp->sgc = sgc;
j = 0;
for_each_sg(sgl, sg, dmacount, i) {
addr = sg_dma_address(sg);
len = sg_dma_len(sg);
while (len) {
/* max number of buffers allowed in one DDP context */
if (j >= TXGBE_BUFFCNT_MAX) {
ddp_pool->noddp++;
goto out_noddp_free;
}
/* get the offset of length of current buffer */
thisoff = addr & ((dma_addr_t)bufflen - 1);
thislen = min((bufflen - thisoff), len);
/*
* all but the 1st buffer (j == 0)
* must be aligned on bufflen
*/
if ((j != 0) && (thisoff))
goto out_noddp_free;
/*
* all but the last buffer
* ((i == (dmacount - 1)) && (thislen == len))
* must end at bufflen
*/
if (((i != (dmacount - 1)) || (thislen != len))
&& ((thislen + thisoff) != bufflen))
goto out_noddp_free;
ddp->udl[j] = (u64)(addr - thisoff);
/* only the first buffer may have none-zero offset */
if (j == 0)
firstoff = thisoff;
len -= thislen;
addr += thislen;
j++;
}
}
/* only the last buffer may have non-full bufflen */
lastsize = thisoff + thislen;
/*
* lastsize can not be bufflen.
* If it is then adding another buffer with lastsize = 1.
* Since lastsize is 1 there will be no HW access to this buffer.
*/
if (lastsize == bufflen) {
if (j >= TXGBE_BUFFCNT_MAX) {
ddp_pool->noddp_ext_buff++;
goto out_noddp_free;
}
ddp->udl[j] = (u64)(fcoe->extra_ddp_buffer_dma);
j++;
lastsize = 1;
}
put_cpu();
fcbuff = TXGBE_RDM_FCBUF_SIZE(TXGBE_FCBUFF_4KB) |
TXGBE_RDM_FCBUF_COUNT(j) |
TXGBE_RDM_FCBUF_OFFSET(firstoff) |
TXGBE_RDM_FCBUF_VALID;
/* Set WRCONTX bit to allow DDP for target */
fcfltctxt = TXGBE_PSR_FC_FLT_CTXT_VALID;
if (!target_mode)
fcfltctxt |= TXGBE_PSR_FC_FLT_CTXT_WR;
fcdmarw = xid | TXGBE_RDM_FCRW_WE |
TXGBE_RDM_FCRW_LASTSIZE(lastsize);
fcfltrw = xid;
fcfltrw |= TXGBE_PSR_FC_FLT_RW_WE;
/* program DMA context */
hw = &adapter->hw;
/* turn on last frame indication for target mode as FCP_RSPtarget is
* supposed to send FCP_RSP when it is done. */
if (target_mode && !test_bit(__TXGBE_FCOE_TARGET, &fcoe->mode)) {
set_bit(__TXGBE_FCOE_TARGET, &fcoe->mode);
wr32m(hw, TXGBE_PSR_FC_CTL,
TXGBE_PSR_FC_CTL_LASTSEQH, TXGBE_PSR_FC_CTL_LASTSEQH);
}
/* other devices require DDP lock with direct DDP context access */
spin_lock_bh(&fcoe->lock);
wr32(hw, TXGBE_RDM_FCPTRL, ddp->udp & DMA_BIT_MASK(32));
wr32(hw, TXGBE_RDM_FCPTRH, (u64)ddp->udp >> 32);
wr32(hw, TXGBE_RDM_FCBUF, fcbuff);
wr32(hw, TXGBE_RDM_FCRW, fcdmarw);
/* program filter context */
wr32(hw, TXGBE_PSR_FC_PARAM, 0);
wr32(hw, TXGBE_PSR_FC_FLT_CTXT, fcfltctxt);
wr32(hw, TXGBE_PSR_FC_FLT_RW, fcfltrw);
spin_unlock_bh(&fcoe->lock);
return 1;
out_noddp_free:
dma_pool_free(ddp->pool, ddp->udl, ddp->udp);
txgbe_fcoe_clear_ddp(ddp);
out_noddp_unmap:
dma_unmap_sg(pci_dev_to_dev(adapter->pdev), sgl, sgc, DMA_FROM_DEVICE);
out_noddp:
put_cpu();
return 0;
}
/**
* txgbe_fcoe_ddp_get - called to set up ddp context in initiator mode
* @netdev: the corresponding net_device
* @xid: the exchange id requesting ddp
* @sgl: the scatter-gather list for this request
* @sgc: the number of scatter-gather items
*
* This is the implementation of net_device_ops.ndo_fcoe_ddp_setup
* and is expected to be called from ULD, e.g., FCP layer of libfc
* to set up ddp for the corresponding xid of the given sglist for
* the corresponding I/O.
*
* Returns : 1 for success and 0 for no ddp
*/
int txgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
struct scatterlist *sgl, unsigned int sgc)
{
return txgbe_fcoe_ddp_setup(netdev, xid, sgl, sgc, 0);
}
#ifdef HAVE_NETDEV_OPS_FCOE_DDP_TARGET
/**
* txgbe_fcoe_ddp_target - called to set up ddp context in target mode
* @netdev: the corresponding net_device
* @xid: the exchange id requesting ddp
* @sgl: the scatter-gather list for this request
* @sgc: the number of scatter-gather items
*
* This is the implementation of net_device_ops.ndo_fcoe_ddp_target
* and is expected to be called from ULD, e.g., FCP layer of libfc
* to set up ddp for the corresponding xid of the given sglist for
* the corresponding I/O. The DDP in target mode is a write I/O request
* from the initiator.
*
* Returns : 1 for success and 0 for no ddp
*/
int txgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
struct scatterlist *sgl, unsigned int sgc)
{
return txgbe_fcoe_ddp_setup(netdev, xid, sgl, sgc, 1);
}
#endif /* HAVE_NETDEV_OPS_FCOE_DDP_TARGET */
/**
* txgbe_fcoe_ddp - check ddp status and mark it done
* @adapter: txgbe adapter
* @rx_desc: advanced rx descriptor
* @skb: the skb holding the received data
*
* This checks ddp status.
*
* Returns : < 0 indicates an error or not a FCoE ddp, 0 indicates
* not passing the skb to ULD, > 0 indicates is the length of data
* being ddped.
*/
int txgbe_fcoe_ddp(struct txgbe_adapter *adapter,
union txgbe_rx_desc *rx_desc,
struct sk_buff *skb)
{
struct txgbe_fcoe *fcoe = &adapter->fcoe;
struct txgbe_fcoe_ddp *ddp;
struct fc_frame_header *fh;
int rc = -EINVAL, ddp_max;
__le32 fcerr = txgbe_test_staterr(rx_desc, TXGBE_RXD_ERR_FCERR);
__le32 ddp_err;
u32 fctl;
u16 xid;
if (fcerr == cpu_to_le32(TXGBE_FCERR_BADCRC))
skb->ip_summed = CHECKSUM_NONE;
else
skb->ip_summed = CHECKSUM_UNNECESSARY;
/* verify header contains at least the FCOE header */
BUG_ON(skb_headlen(skb) < FCOE_HEADER_LEN);
fh = (struct fc_frame_header *)(skb->data + sizeof(struct fcoe_hdr));
if (skb->protocol == htons(ETH_P_8021Q))
fh = (struct fc_frame_header *)((char *)fh + VLAN_HLEN);
fctl = ntoh24(fh->fh_f_ctl);
if (fctl & FC_FC_EX_CTX)
xid = ntohs(fh->fh_ox_id);
else
xid = ntohs(fh->fh_rx_id);
ddp_max = TXGBE_FCOE_DDP_MAX;
if (xid >= ddp_max)
goto ddp_out;
ddp = &fcoe->ddp[xid];
if (!ddp->udl)
goto ddp_out;
ddp_err = txgbe_test_staterr(rx_desc, TXGBE_RXD_ERR_FCEOFE |
TXGBE_RXD_ERR_FCERR);
if (ddp_err)
goto ddp_out;
switch (txgbe_test_staterr(rx_desc, TXGBE_RXD_STAT_FCSTAT)) {
/* return 0 to bypass going to ULD for DDPed data */
case __constant_cpu_to_le32(TXGBE_RXD_STAT_FCSTAT_DDP):
/* update length of DDPed data */
ddp->len = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss);
rc = 0;
break;
/* unmap the sg list when FCPRSP is received */
case __constant_cpu_to_le32(TXGBE_RXD_STAT_FCSTAT_FCPRSP):
dma_unmap_sg(pci_dev_to_dev(adapter->pdev), ddp->sgl,
ddp->sgc, DMA_FROM_DEVICE);
ddp->err = ddp_err;
ddp->sgl = NULL;
ddp->sgc = 0;
fallthrough;
/* if DDP length is present pass it through to ULD */
case __constant_cpu_to_le32(TXGBE_RXD_STAT_FCSTAT_NODDP):
/* update length of DDPed data */
ddp->len = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss);
if (ddp->len)
rc = ddp->len;
break;
/* no match will return as an error */
case __constant_cpu_to_le32(TXGBE_RXD_STAT_FCSTAT_NOMTCH):
default:
break;
}
/* In target mode, check the last data frame of the sequence.
* For DDP in target mode, data is already DDPed but the header
* indication of the last data frame ould allow is to tell if we
* got all the data and the ULP can send FCP_RSP back, as this is
* not a full fcoe frame, we fill the trailer here so it won't be
* dropped by the ULP stack.
*/
if ((fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA) &&
(fctl & FC_FC_END_SEQ)) {
struct fcoe_crc_eof *crc;
skb_linearize(skb);
crc = (struct fcoe_crc_eof *)skb_put(skb, sizeof(*crc));
crc->fcoe_eof = FC_EOF_T;
}
ddp_out:
return rc;
}
/**
* txgbe_fso - txgbe FCoE Sequence Offload (FSO)
* @tx_ring: tx desc ring
* @first: first tx_buffer structure containing skb, tx_flags, and protocol
* @hdr_len: hdr_len to be returned
*
* This sets up large send offload for FCoE
*
* Returns : 0 indicates success, < 0 for error
*/
int txgbe_fso(struct txgbe_ring *tx_ring,
struct txgbe_tx_buffer *first,
u8 *hdr_len)
{
struct sk_buff *skb = first->skb;
struct fc_frame_header *fh;
u32 vlan_macip_lens;
u32 fcoe_sof_eof = 0;
u32 mss_l4len_idx;
u8 sof, eof;
#ifdef NETIF_F_FSO
if (skb_is_gso(skb) && skb_shinfo(skb)->gso_type != SKB_GSO_FCOE) {
dev_err(tx_ring->dev, "Wrong gso type %d:expecting "
"SKB_GSO_FCOE\n", skb_shinfo(skb)->gso_type);
return -EINVAL;
}
#endif
/* resets the header to point fcoe/fc */
skb_set_network_header(skb, skb->mac_len);
skb_set_transport_header(skb, skb->mac_len +
sizeof(struct fcoe_hdr));
/* sets up SOF and ORIS */
sof = ((struct fcoe_hdr *)skb_network_header(skb))->fcoe_sof;
switch (sof) {
case FC_SOF_I2:
fcoe_sof_eof = TXGBE_TXD_FCOEF_ORIS;
break;
case FC_SOF_I3:
fcoe_sof_eof = TXGBE_TXD_FCOEF_SOF |
TXGBE_TXD_FCOEF_ORIS;
break;
case FC_SOF_N2:
break;
case FC_SOF_N3:
fcoe_sof_eof = TXGBE_TXD_FCOEF_SOF;
break;
default:
dev_warn(tx_ring->dev, "unknown sof = 0x%x\n", sof);
return -EINVAL;
}
/* the first byte of the last dword is EOF */
skb_copy_bits(skb, skb->len - 4, &eof, 1);
/* sets up EOF and ORIE */
switch (eof) {
case FC_EOF_N:
fcoe_sof_eof |= TXGBE_TXD_FCOEF_EOF_N;
break;
case FC_EOF_T:
/* lso needs ORIE */
if (skb_is_gso(skb))
fcoe_sof_eof |= TXGBE_TXD_FCOEF_EOF_N |
TXGBE_TXD_FCOEF_ORIE;
else
fcoe_sof_eof |= TXGBE_TXD_FCOEF_EOF_T;
break;
case FC_EOF_NI:
fcoe_sof_eof |= TXGBE_TXD_FCOEF_EOF_NI;
break;
case FC_EOF_A:
fcoe_sof_eof |= TXGBE_TXD_FCOEF_EOF_A;
break;
default:
dev_warn(tx_ring->dev, "unknown eof = 0x%x\n", eof);
return -EINVAL;
}
/* sets up PARINC indicating data offset */
fh = (struct fc_frame_header *)skb_transport_header(skb);
if (fh->fh_f_ctl[2] & FC_FC_REL_OFF)
fcoe_sof_eof |= TXGBE_TXD_FCOEF_PARINC;
/* include trailer in headlen as it is replicated per frame */
*hdr_len = sizeof(struct fcoe_crc_eof);
/* hdr_len includes fc_hdr if FCoE LSO is enabled */
if (skb_is_gso(skb)) {
*hdr_len += skb_transport_offset(skb) +
sizeof(struct fc_frame_header);
/* update gso_segs and bytecount */
first->gso_segs = DIV_ROUND_UP(skb->len - *hdr_len,
skb_shinfo(skb)->gso_size);
first->bytecount += (first->gso_segs - 1) * *hdr_len;
first->tx_flags |= TXGBE_TX_FLAGS_TSO;
}
/* set flag indicating FCOE to txgbe_tx_map call */
first->tx_flags |= TXGBE_TX_FLAGS_FCOE | TXGBE_TX_FLAGS_CC;
/* mss_l4len_id: use 0 for FSO as TSO, no need for L4LEN */
mss_l4len_idx = skb_shinfo(skb)->gso_size << TXGBE_TXD_MSS_SHIFT;
/* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */
vlan_macip_lens = skb_transport_offset(skb) +
sizeof(struct fc_frame_header);
vlan_macip_lens |= (skb_transport_offset(skb) - 4)
<< TXGBE_TXD_MACLEN_SHIFT;
vlan_macip_lens |= first->tx_flags & TXGBE_TX_FLAGS_VLAN_MASK;
/* write context desc */
txgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, fcoe_sof_eof,
TXGBE_TXD_TUCMD_FCOE, mss_l4len_idx);
return 0;
}
static void txgbe_fcoe_dma_pool_free(struct txgbe_fcoe *fcoe, unsigned int cpu)
{
struct txgbe_fcoe_ddp_pool *ddp_pool;
ddp_pool = per_cpu_ptr(fcoe->ddp_pool, cpu);
if (ddp_pool->pool)
dma_pool_destroy(ddp_pool->pool);
ddp_pool->pool = NULL;
}
static int txgbe_fcoe_dma_pool_alloc(struct txgbe_fcoe *fcoe,
struct device *dev,
unsigned int cpu)
{
struct txgbe_fcoe_ddp_pool *ddp_pool;
struct dma_pool *pool;
char pool_name[32];
snprintf(pool_name, 32, "txgbe_fcoe_ddp_%d", cpu);
pool = dma_pool_create(pool_name, dev, TXGBE_FCPTR_MAX,
TXGBE_FCPTR_ALIGN, PAGE_SIZE);
if (!pool)
return -ENOMEM;
ddp_pool = per_cpu_ptr(fcoe->ddp_pool, cpu);
ddp_pool->pool = pool;
ddp_pool->noddp = 0;
ddp_pool->noddp_ext_buff = 0;
return 0;
}
/**
* txgbe_configure_fcoe - configures registers for fcoe at start
* @adapter: ptr to txgbe adapter
*
* This sets up FCoE related registers
*
* Returns : none
*/
void txgbe_configure_fcoe(struct txgbe_adapter *adapter)
{
struct txgbe_ring_feature *fcoe = &adapter->ring_feature[RING_F_FCOE];
struct txgbe_hw *hw = &adapter->hw;
int i, fcoe_i;
u32 fcoe_q;
u32 etqf;
int fcreta_size;
/* Minimal funcionality for FCoE requires at least CRC offloads */
if (!(adapter->netdev->features & NETIF_F_FCOE_CRC))
return;
/* Enable L2 EtherType filter for FCoE, needed for FCoE CRC and DDP */
etqf = ETH_P_FCOE | TXGBE_PSR_ETYPE_SWC_FCOE |
TXGBE_PSR_ETYPE_SWC_FILTER_EN;
if (adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) {
etqf |= TXGBE_PSR_ETYPE_SWC_POOL_ENABLE;
etqf |= VMDQ_P(0) << TXGBE_PSR_ETYPE_SWC_POOL_SHIFT;
}
wr32(hw,
TXGBE_PSR_ETYPE_SWC(TXGBE_PSR_ETYPE_SWC_FILTER_FCOE),
etqf);
wr32(hw,
TXGBE_RDB_ETYPE_CLS(TXGBE_PSR_ETYPE_SWC_FILTER_FCOE),
0);
/* leave remaining registers unconfigued if FCoE is disabled */
if (!(adapter->flags & TXGBE_FLAG_FCOE_ENABLED))
return;
/* Use one or more Rx queues for FCoE by redirection table */
fcreta_size = TXGBE_RDB_FCRE_TBL_SIZE;
for (i = 0; i < fcreta_size; i++) {
fcoe_i =
TXGBE_RDB_FCRE_TBL_RING(fcoe->offset + (i % fcoe->indices));
fcoe_q = adapter->rx_ring[fcoe_i]->reg_idx;
wr32(hw, TXGBE_RDB_FCRE_TBL(i), fcoe_q);
}
wr32(hw, TXGBE_RDB_FCRE_CTL, TXGBE_RDB_FCRE_CTL_ENA);
/* Enable L2 EtherType filter for FIP */
etqf = ETH_P_FIP | TXGBE_PSR_ETYPE_SWC_FILTER_EN;
if (adapter->flags & TXGBE_FLAG_SRIOV_ENABLED) {
etqf |= TXGBE_PSR_ETYPE_SWC_POOL_ENABLE;
etqf |= VMDQ_P(0) << TXGBE_PSR_ETYPE_SWC_POOL_SHIFT;
}
wr32(hw, TXGBE_PSR_ETYPE_SWC(TXGBE_PSR_ETYPE_SWC_FILTER_FIP),
etqf);
/* Send FIP frames to the first FCoE queue */
fcoe_q = adapter->rx_ring[fcoe->offset]->reg_idx;
wr32(hw, TXGBE_RDB_ETYPE_CLS(TXGBE_PSR_ETYPE_SWC_FILTER_FIP),
TXGBE_RDB_ETYPE_CLS_QUEUE_EN |
(fcoe_q << TXGBE_RDB_ETYPE_CLS_RX_QUEUE_SHIFT));
/* Configure FCoE Rx control */
wr32(hw, TXGBE_PSR_FC_CTL,
TXGBE_PSR_FC_CTL_FCCRCBO |
TXGBE_PSR_FC_CTL_FCOEVER(FC_FCOE_VER) |
TXGBE_PSR_FC_CTL_ALLH);
}
/**
* txgbe_free_fcoe_ddp_resources - release all fcoe ddp context resources
* @adapter : txgbe adapter
*
* Cleans up outstanding ddp context resources
*
* Returns : none
*/
void txgbe_free_fcoe_ddp_resources(struct txgbe_adapter *adapter)
{
struct txgbe_fcoe *fcoe = &adapter->fcoe;
int cpu, i, ddp_max;
/* do nothing if no DDP pools were allocated */
if (!fcoe->ddp_pool)
return;
ddp_max = TXGBE_FCOE_DDP_MAX;
for (i = 0; i < ddp_max; i++)
txgbe_fcoe_ddp_put(adapter->netdev, i);
for_each_possible_cpu(cpu)
txgbe_fcoe_dma_pool_free(fcoe, cpu);
dma_unmap_single(pci_dev_to_dev(adapter->pdev),
fcoe->extra_ddp_buffer_dma,
TXGBE_FCBUFF_MIN,
DMA_FROM_DEVICE);
kfree(fcoe->extra_ddp_buffer);
fcoe->extra_ddp_buffer = NULL;
fcoe->extra_ddp_buffer_dma = 0;
}
/**
* txgbe_setup_fcoe_ddp_resources - setup all fcoe ddp context resources
* @adapter: txgbe adapter
*
* Sets up ddp context resouces
*
* Returns : 0 indicates success or -EINVAL on failure
*/
int txgbe_setup_fcoe_ddp_resources(struct txgbe_adapter *adapter)
{
struct txgbe_fcoe *fcoe = &adapter->fcoe;
struct device *dev = pci_dev_to_dev(adapter->pdev);
void *buffer;
dma_addr_t dma;
unsigned int cpu;
/* do nothing if no DDP pools were allocated */
if (!fcoe->ddp_pool)
return 0;
/* Extra buffer to be shared by all DDPs for HW work around */
buffer = kmalloc(TXGBE_FCBUFF_MIN, GFP_ATOMIC);
if (!buffer) {
e_err(drv, "failed to allocate extra DDP buffer\n");
return -ENOMEM;
}
dma = dma_map_single(dev, buffer, TXGBE_FCBUFF_MIN, DMA_FROM_DEVICE);
if (dma_mapping_error(dev, dma)) {
e_err(drv, "failed to map extra DDP buffer\n");
kfree(buffer);
return -ENOMEM;
}
fcoe->extra_ddp_buffer = buffer;
fcoe->extra_ddp_buffer_dma = dma;
/* allocate pci pool for each cpu */
for_each_possible_cpu(cpu) {
int err = txgbe_fcoe_dma_pool_alloc(fcoe, dev, cpu);
if (!err)
continue;
e_err(drv, "failed to alloc DDP pool on cpu:%d\n", cpu);
txgbe_free_fcoe_ddp_resources(adapter);
return -ENOMEM;
}
return 0;
}
#ifndef HAVE_NETDEV_OPS_FCOE_ENABLE
int txgbe_fcoe_ddp_enable(struct txgbe_adapter *adapter)
#else
static int txgbe_fcoe_ddp_enable(struct txgbe_adapter *adapter)
#endif
{
struct txgbe_fcoe *fcoe = &adapter->fcoe;
if (!(adapter->flags & TXGBE_FLAG_FCOE_CAPABLE))
return -EINVAL;
fcoe->ddp_pool = alloc_percpu(struct txgbe_fcoe_ddp_pool);
if (!fcoe->ddp_pool) {
e_err(drv, "failed to allocate percpu DDP resources\n");
return -ENOMEM;
}
adapter->netdev->fcoe_ddp_xid = TXGBE_FCOE_DDP_MAX - 1;
return 0;
}
#ifndef HAVE_NETDEV_OPS_FCOE_ENABLE
void txgbe_fcoe_ddp_disable(struct txgbe_adapter *adapter)
#else
static void txgbe_fcoe_ddp_disable(struct txgbe_adapter *adapter)
#endif
{
struct txgbe_fcoe *fcoe = &adapter->fcoe;
adapter->netdev->fcoe_ddp_xid = 0;
if (!fcoe->ddp_pool)
return;
free_percpu(fcoe->ddp_pool);
fcoe->ddp_pool = NULL;
}
#ifdef HAVE_NETDEV_OPS_FCOE_ENABLE
/**
* txgbe_fcoe_enable - turn on FCoE offload feature
* @netdev: the corresponding netdev
*
* Turns on FCoE offload feature in sapphire.
*
* Returns : 0 indicates success or -EINVAL on failure
*/
int txgbe_fcoe_enable(struct net_device *netdev)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
struct txgbe_fcoe *fcoe = &adapter->fcoe;
atomic_inc(&fcoe->refcnt);
if (!(adapter->flags & TXGBE_FLAG_FCOE_CAPABLE))
return -EINVAL;
if (adapter->flags & TXGBE_FLAG_FCOE_ENABLED)
return -EINVAL;
e_info(drv, "Enabling FCoE offload features.\n");
if (adapter->flags & TXGBE_FLAG_SRIOV_ENABLED)
e_warn(probe, "Enabling FCoE on PF will disable legacy VFs\n");
if (netif_running(netdev))
netdev->netdev_ops->ndo_stop(netdev);
/* Allocate per CPU memory to track DDP pools */
txgbe_fcoe_ddp_enable(adapter);
/* enable FCoE and notify stack */
adapter->flags |= TXGBE_FLAG_FCOE_ENABLED;
netdev->features |= NETIF_F_FCOE_MTU;
netdev_features_change(netdev);
/* release existing queues and reallocate them */
txgbe_clear_interrupt_scheme(adapter);
txgbe_init_interrupt_scheme(adapter);
if (netif_running(netdev))
netdev->netdev_ops->ndo_open(netdev);
return 0;
}
/**
* txgbe_fcoe_disable - turn off FCoE offload feature
* @netdev: the corresponding netdev
*
* Turns off FCoE offload feature in sapphire.
*
* Returns : 0 indicates success or -EINVAL on failure
*/
int txgbe_fcoe_disable(struct net_device *netdev)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
if (!atomic_dec_and_test(&adapter->fcoe.refcnt))
return -EINVAL;
if (!(adapter->flags & TXGBE_FLAG_FCOE_ENABLED))
return -EINVAL;
e_info(drv, "Disabling FCoE offload features.\n");
if (netif_running(netdev))
netdev->netdev_ops->ndo_stop(netdev);
/* Free per CPU memory to track DDP pools */
txgbe_fcoe_ddp_disable(adapter);
/* disable FCoE and notify stack */
adapter->flags &= ~TXGBE_FLAG_FCOE_ENABLED;
netdev->features &= ~NETIF_F_FCOE_MTU;
netdev_features_change(netdev);
/* release existing queues and reallocate them */
txgbe_clear_interrupt_scheme(adapter);
txgbe_init_interrupt_scheme(adapter);
if (netif_running(netdev))
netdev->netdev_ops->ndo_open(netdev);
return 0;
}
#endif /* HAVE_NETDEV_OPS_FCOE_ENABLE */
#if IS_ENABLED(CONFIG_DCB)
#ifdef HAVE_DCBNL_OPS_GETAPP
/**
* txgbe_fcoe_getapp - retrieves current user priority bitmap for FCoE
* @netdev: the corresponding net_device
*
* Finds out the corresponding user priority bitmap from the current
* traffic class that FCoE belongs to. Returns 0 as the invalid user
* priority bitmap to indicate an error.
*
* Returns : 802.1p user priority bitmap for FCoE
*/
u8 txgbe_fcoe_getapp(struct net_device *netdev)
{
struct txgbe_adapter *adapter = netdev_priv(netdev);
return 1 << adapter->fcoe.up;
}
#endif /* HAVE_DCBNL_OPS_GETAPP */
#endif /* CONFIG_DCB */
#ifdef HAVE_NETDEV_OPS_FCOE_GETWWN
/**
* txgbe_fcoe_get_wwn - get world wide name for the node or the port
* @netdev : txgbe adapter
* @wwn : the world wide name
* @type: the type of world wide name
*
* Returns the node or port world wide name if both the prefix and the san
* mac address are valid, then the wwn is formed based on the NAA-2 for
* IEEE Extended name identifier (ref. to T10 FC-LS Spec., Sec. 15.3).
*
* Returns : 0 on success
*/
int txgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type)
{
int rc = -EINVAL;
u16 prefix = 0xffff;
struct txgbe_adapter *adapter = netdev_priv(netdev);
struct txgbe_mac_info *mac = &adapter->hw.mac;
switch (type) {
case NETDEV_FCOE_WWNN:
prefix = mac->wwnn_prefix;
break;
case NETDEV_FCOE_WWPN:
prefix = mac->wwpn_prefix;
break;
default:
break;
}
if ((prefix != 0xffff) &&
is_valid_ether_addr(mac->san_addr)) {
*wwn = ((u64) prefix << 48) |
((u64) mac->san_addr[0] << 40) |
((u64) mac->san_addr[1] << 32) |
((u64) mac->san_addr[2] << 24) |
((u64) mac->san_addr[3] << 16) |
((u64) mac->san_addr[4] << 8) |
((u64) mac->san_addr[5]);
rc = 0;
}
return rc;
}
#endif /* HAVE_NETDEV_OPS_FCOE_GETWWN */
/**
* txgbe_fcoe_get_tc - get the current TC that fcoe is mapped to
* @adapter - pointer to the device adapter structure
*
* Return : TC that FCoE is mapped to
*/
u8 txgbe_fcoe_get_tc(struct txgbe_adapter *adapter)
{
return netdev_get_prio_tc_map(adapter->netdev, adapter->fcoe.up);
}
#endif /* CONFIG_FCOE */

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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_fcoe.h, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#ifndef _TXGBE_FCOE_H_
#define _TXGBE_FCOE_H_
#if IS_ENABLED(CONFIG_FCOE)
#include <scsi/fc/fc_fs.h>
#include <scsi/fc/fc_fcoe.h>
/* shift bits within STAT fo FCSTAT */
#define TXGBE_RXD_FCSTAT_SHIFT 4
/* ddp user buffer */
#define TXGBE_BUFFCNT_MAX 256 /* 8 bits bufcnt */
#define TXGBE_FCPTR_ALIGN 16
#define TXGBE_FCPTR_MAX (TXGBE_BUFFCNT_MAX * sizeof(dma_addr_t))
#define TXGBE_FCBUFF_4KB 0x0
#define TXGBE_FCBUFF_8KB 0x1
#define TXGBE_FCBUFF_16KB 0x2
#define TXGBE_FCBUFF_64KB 0x3
#define TXGBE_FCBUFF_MAX 65536 /* 64KB max */
#define TXGBE_FCBUFF_MIN 4096 /* 4KB min */
#define TXGBE_FCOE_DDP_MAX 512 /* 9 bits xid */
/* Default user priority to use for FCoE */
#define TXGBE_FCOE_DEFUP 3
/* fcerr */
#define TXGBE_FCERR_BADCRC 0x00100000
#define TXGBE_FCERR_EOFSOF 0x00200000
#define TXGBE_FCERR_NOFIRST 0x00300000
#define TXGBE_FCERR_OOOSEQ 0x00400000
#define TXGBE_FCERR_NODMA 0x00500000
#define TXGBE_FCERR_PKTLOST 0x00600000
/* FCoE DDP for target mode */
#define __TXGBE_FCOE_TARGET 1
struct txgbe_fcoe_ddp {
int len;
u32 err;
unsigned int sgc;
struct scatterlist *sgl;
dma_addr_t udp;
u64 *udl;
struct dma_pool *pool;
};
/* per cpu variables */
struct txgbe_fcoe_ddp_pool {
struct dma_pool *pool;
u64 noddp;
u64 noddp_ext_buff;
};
struct txgbe_fcoe {
struct txgbe_fcoe_ddp_pool __percpu *ddp_pool;
atomic_t refcnt;
spinlock_t lock;
struct txgbe_fcoe_ddp ddp[TXGBE_FCOE_DDP_MAX];
void *extra_ddp_buffer;
dma_addr_t extra_ddp_buffer_dma;
unsigned long mode;
u8 up;
u8 up_set;
};
#endif /* CONFIG_FCOE */
#endif /* _TXGBE_FCOE_H */

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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*/
#ifndef _TXGBE_HW_H_
#define _TXGBE_HW_H_
#define TXGBE_EMC_INTERNAL_DATA 0x00
#define TXGBE_EMC_INTERNAL_THERM_LIMIT 0x20
#define TXGBE_EMC_DIODE1_DATA 0x01
#define TXGBE_EMC_DIODE1_THERM_LIMIT 0x19
#define TXGBE_EMC_DIODE2_DATA 0x23
#define TXGBE_EMC_DIODE2_THERM_LIMIT 0x1A
#define TXGBE_EMC_DIODE3_DATA 0x2A
#define TXGBE_EMC_DIODE3_THERM_LIMIT 0x30
#define SPI_CLK_DIV 2
#define SPI_CMD_ERASE_CHIP 4 // SPI erase chip command
#define SPI_CMD_ERASE_SECTOR 3 // SPI erase sector command
#define SPI_CMD_WRITE_DWORD 0 // SPI write a dword command
#define SPI_CMD_READ_DWORD 1 // SPI read a dword command
#define SPI_CMD_USER_CMD 5 // SPI user command
#define SPI_CLK_CMD_OFFSET 28 // SPI command field offset in Command register
#define SPI_CLK_DIV_OFFSET 25 // SPI clock divide field offset in Command register
#define SPI_TIME_OUT_VALUE 10000
#define SPI_SECTOR_SIZE (4 * 1024) // FLASH sector size is 64KB
#define SPI_H_CMD_REG_ADDR 0x10104 // SPI Command register address
#define SPI_H_DAT_REG_ADDR 0x10108 // SPI Data register address
#define SPI_H_STA_REG_ADDR 0x1010c // SPI Status register address
#define SPI_H_USR_CMD_REG_ADDR 0x10110 // SPI User Command register address
#define SPI_CMD_CFG1_ADDR 0x10118 // Flash command configuration register 1
#define MISC_RST_REG_ADDR 0x1000c // Misc reset register address
#define MGR_FLASH_RELOAD_REG_ADDR 0x101a0 // MGR reload flash read
#define MAC_ADDR0_WORD0_OFFSET_1G 0x006000c // MAC Address for LAN0, stored in external FLASH
#define MAC_ADDR0_WORD1_OFFSET_1G 0x0060014
#define MAC_ADDR1_WORD0_OFFSET_1G 0x007000c // MAC Address for LAN1, stored in external FLASH
#define MAC_ADDR1_WORD1_OFFSET_1G 0x0070014
#define PRODUCT_SERIAL_NUM_OFFSET_1G 0x00f0000 // Product Serial Number, stored in external FLASH last sector
struct txgbe_hic_read_cab {
union txgbe_hic_hdr2 hdr;
union {
u8 d8[252];
u16 d16[126];
u32 d32[63];
} dbuf;
};
/**
* Packet Type decoding
**/
/* txgbe_dec_ptype.mac: outer mac */
enum txgbe_dec_ptype_mac {
TXGBE_DEC_PTYPE_MAC_IP = 0,
TXGBE_DEC_PTYPE_MAC_L2 = 2,
TXGBE_DEC_PTYPE_MAC_FCOE = 3,
};
/* txgbe_dec_ptype.[e]ip: outer&encaped ip */
#define TXGBE_DEC_PTYPE_IP_FRAG (0x4)
enum txgbe_dec_ptype_ip {
TXGBE_DEC_PTYPE_IP_NONE = 0,
TXGBE_DEC_PTYPE_IP_IPV4 = 1,
TXGBE_DEC_PTYPE_IP_IPV6 = 2,
TXGBE_DEC_PTYPE_IP_FGV4 =
(TXGBE_DEC_PTYPE_IP_FRAG | TXGBE_DEC_PTYPE_IP_IPV4),
TXGBE_DEC_PTYPE_IP_FGV6 =
(TXGBE_DEC_PTYPE_IP_FRAG | TXGBE_DEC_PTYPE_IP_IPV6),
};
/* txgbe_dec_ptype.etype: encaped type */
enum txgbe_dec_ptype_etype {
TXGBE_DEC_PTYPE_ETYPE_NONE = 0,
TXGBE_DEC_PTYPE_ETYPE_IPIP = 1, /* IP+IP */
TXGBE_DEC_PTYPE_ETYPE_IG = 2, /* IP+GRE */
TXGBE_DEC_PTYPE_ETYPE_IGM = 3, /* IP+GRE+MAC */
TXGBE_DEC_PTYPE_ETYPE_IGMV = 4, /* IP+GRE+MAC+VLAN */
};
/* txgbe_dec_ptype.proto: payload proto */
enum txgbe_dec_ptype_prot {
TXGBE_DEC_PTYPE_PROT_NONE = 0,
TXGBE_DEC_PTYPE_PROT_UDP = 1,
TXGBE_DEC_PTYPE_PROT_TCP = 2,
TXGBE_DEC_PTYPE_PROT_SCTP = 3,
TXGBE_DEC_PTYPE_PROT_ICMP = 4,
TXGBE_DEC_PTYPE_PROT_TS = 5, /* time sync */
};
/* txgbe_dec_ptype.layer: payload layer */
enum txgbe_dec_ptype_layer {
TXGBE_DEC_PTYPE_LAYER_NONE = 0,
TXGBE_DEC_PTYPE_LAYER_PAY2 = 1,
TXGBE_DEC_PTYPE_LAYER_PAY3 = 2,
TXGBE_DEC_PTYPE_LAYER_PAY4 = 3,
};
struct txgbe_dec_ptype {
u32 ptype:8;
u32 known:1;
u32 mac:2; /* outer mac */
u32 ip:3; /* outer ip*/
u32 etype:3; /* encaped type */
u32 eip:3; /* encaped ip */
u32 prot:4; /* payload proto */
u32 layer:3; /* payload layer */
};
typedef struct txgbe_dec_ptype txgbe_dptype;
void txgbe_dcb_get_rtrup2tc(struct txgbe_hw *hw, u8 *map);
u16 txgbe_get_pcie_msix_count(struct txgbe_hw *hw);
s32 txgbe_init_hw(struct txgbe_hw *hw);
s32 txgbe_start_hw(struct txgbe_hw *hw);
s32 txgbe_clear_hw_cntrs(struct txgbe_hw *hw);
s32 txgbe_read_pba_string(struct txgbe_hw *hw, u8 *pba_num,
u32 pba_num_size);
s32 txgbe_get_mac_addr(struct txgbe_hw *hw, u8 *mac_addr);
s32 txgbe_get_bus_info(struct txgbe_hw *hw);
void txgbe_set_pci_config_data(struct txgbe_hw *hw, u16 link_status);
void txgbe_set_lan_id_multi_port_pcie(struct txgbe_hw *hw);
s32 txgbe_stop_adapter(struct txgbe_hw *hw);
s32 txgbe_led_on(struct txgbe_hw *hw, u32 index);
s32 txgbe_led_off(struct txgbe_hw *hw, u32 index);
s32 txgbe_set_rar(struct txgbe_hw *hw, u32 index, u8 *addr, u64 pools,
u32 enable_addr);
s32 txgbe_clear_rar(struct txgbe_hw *hw, u32 index);
s32 txgbe_init_rx_addrs(struct txgbe_hw *hw);
s32 txgbe_update_mc_addr_list(struct txgbe_hw *hw, u8 *mc_addr_list,
u32 mc_addr_count,
txgbe_mc_addr_itr func, bool clear);
s32 txgbe_update_uc_addr_list(struct txgbe_hw *hw, u8 *addr_list,
u32 addr_count, txgbe_mc_addr_itr func);
s32 txgbe_enable_mc(struct txgbe_hw *hw);
s32 txgbe_disable_mc(struct txgbe_hw *hw);
s32 txgbe_disable_sec_rx_path(struct txgbe_hw *hw);
s32 txgbe_enable_sec_rx_path(struct txgbe_hw *hw);
s32 txgbe_disable_sec_tx_path(struct txgbe_hw *hw);
s32 txgbe_enable_sec_tx_path(struct txgbe_hw *hw);
s32 txgbe_fc_enable(struct txgbe_hw *hw);
bool txgbe_device_supports_autoneg_fc(struct txgbe_hw *hw);
void txgbe_fc_autoneg(struct txgbe_hw *hw);
s32 txgbe_setup_fc(struct txgbe_hw *hw);
s32 txgbe_validate_mac_addr(u8 *mac_addr);
s32 txgbe_acquire_swfw_sync(struct txgbe_hw *hw, u32 mask);
void txgbe_release_swfw_sync(struct txgbe_hw *hw, u32 mask);
s32 txgbe_disable_pcie_master(struct txgbe_hw *hw);
s32 txgbe_get_san_mac_addr(struct txgbe_hw *hw, u8 *san_mac_addr);
s32 txgbe_set_san_mac_addr(struct txgbe_hw *hw, u8 *san_mac_addr);
s32 txgbe_set_vmdq(struct txgbe_hw *hw, u32 rar, u32 vmdq);
s32 txgbe_set_vmdq_san_mac(struct txgbe_hw *hw, u32 vmdq);
s32 txgbe_clear_vmdq(struct txgbe_hw *hw, u32 rar, u32 vmdq);
s32 txgbe_insert_mac_addr(struct txgbe_hw *hw, u8 *addr, u32 vmdq);
s32 txgbe_init_uta_tables(struct txgbe_hw *hw);
s32 txgbe_set_vfta(struct txgbe_hw *hw, u32 vlan,
u32 vind, bool vlan_on);
s32 txgbe_set_vlvf(struct txgbe_hw *hw, u32 vlan, u32 vind,
bool vlan_on, bool *vfta_changed);
s32 txgbe_clear_vfta(struct txgbe_hw *hw);
s32 txgbe_find_vlvf_slot(struct txgbe_hw *hw, u32 vlan);
s32 txgbe_get_wwn_prefix(struct txgbe_hw *hw, u16 *wwnn_prefix,
u16 *wwpn_prefix);
void txgbe_set_mac_anti_spoofing(struct txgbe_hw *hw, bool enable, int pf);
void txgbe_set_vlan_anti_spoofing(struct txgbe_hw *hw, bool enable, int vf);
void txgbe_set_ethertype_anti_spoofing(struct txgbe_hw *hw,
bool enable, int vf);
s32 txgbe_get_device_caps(struct txgbe_hw *hw, u16 *device_caps);
void txgbe_set_rxpba(struct txgbe_hw *hw, int num_pb, u32 headroom,
int strategy);
s32 txgbe_set_fw_drv_ver(struct txgbe_hw *hw, u8 maj, u8 min,
u8 build, u8 ver);
s32 txgbe_reset_hostif(struct txgbe_hw *hw);
u8 txgbe_calculate_checksum(u8 *buffer, u32 length);
s32 txgbe_host_interface_command(struct txgbe_hw *hw, u32 *buffer,
u32 length, u32 timeout, bool return_data);
void txgbe_clear_tx_pending(struct txgbe_hw *hw);
void txgbe_stop_mac_link_on_d3(struct txgbe_hw *hw);
bool txgbe_mng_present(struct txgbe_hw *hw);
bool txgbe_check_mng_access(struct txgbe_hw *hw);
s32 txgbe_get_thermal_sensor_data(struct txgbe_hw *hw);
s32 txgbe_init_thermal_sensor_thresh(struct txgbe_hw *hw);
void txgbe_enable_rx(struct txgbe_hw *hw);
void txgbe_disable_rx(struct txgbe_hw *hw);
s32 txgbe_setup_mac_link_multispeed_fiber(struct txgbe_hw *hw,
u32 speed,
bool autoneg_wait_to_complete);
int txgbe_check_flash_load(struct txgbe_hw *hw, u32 check_bit);
#if 0
void txgbe_disable_fdir(struct txgbe_hw *hw);
#endif
/* @txgbe_api.h */
s32 txgbe_reinit_fdir_tables(struct txgbe_hw *hw);
s32 txgbe_init_fdir_signature(struct txgbe_hw *hw, u32 fdirctrl);
s32 txgbe_init_fdir_perfect(struct txgbe_hw *hw, u32 fdirctrl,
bool cloud_mode);
s32 txgbe_fdir_add_signature_filter(struct txgbe_hw *hw,
union txgbe_atr_hash_dword input,
union txgbe_atr_hash_dword common,
u8 queue);
s32 txgbe_fdir_set_input_mask(struct txgbe_hw *hw,
union txgbe_atr_input *input_mask, bool cloud_mode);
s32 txgbe_fdir_write_perfect_filter(struct txgbe_hw *hw,
union txgbe_atr_input *input,
u16 soft_id, u8 queue, bool cloud_mode);
s32 txgbe_fdir_erase_perfect_filter(struct txgbe_hw *hw,
union txgbe_atr_input *input,
u16 soft_id);
s32 txgbe_fdir_add_perfect_filter(struct txgbe_hw *hw,
union txgbe_atr_input *input,
union txgbe_atr_input *mask,
u16 soft_id,
u8 queue,
bool cloud_mode);
void txgbe_atr_compute_perfect_hash(union txgbe_atr_input *input,
union txgbe_atr_input *mask);
u32 txgbe_atr_compute_sig_hash(union txgbe_atr_hash_dword input,
union txgbe_atr_hash_dword common);
s32 txgbe_get_link_capabilities(struct txgbe_hw *hw,
u32 *speed, bool *autoneg);
enum txgbe_media_type txgbe_get_media_type(struct txgbe_hw *hw);
void txgbe_disable_tx_laser_multispeed_fiber(struct txgbe_hw *hw);
void txgbe_enable_tx_laser_multispeed_fiber(struct txgbe_hw *hw);
void txgbe_flap_tx_laser_multispeed_fiber(struct txgbe_hw *hw);
void txgbe_set_hard_rate_select_speed(struct txgbe_hw *hw,
u32 speed);
s32 txgbe_setup_mac_link(struct txgbe_hw *hw, u32 speed,
bool autoneg_wait_to_complete);
void txgbe_init_mac_link_ops(struct txgbe_hw *hw);
s32 txgbe_reset_hw(struct txgbe_hw *hw);
s32 txgbe_identify_phy(struct txgbe_hw *hw);
s32 txgbe_init_phy_ops(struct txgbe_hw *hw);
s32 txgbe_enable_rx_dma(struct txgbe_hw *hw, u32 regval);
s32 txgbe_init_ops(struct txgbe_hw *hw);
s32 txgbe_setup_eee(struct txgbe_hw *hw, bool enable_eee);
s32 txgbe_init_flash_params(struct txgbe_hw *hw);
s32 txgbe_read_flash_buffer(struct txgbe_hw *hw, u32 offset,
u32 dwords, u32 *data);
s32 txgbe_write_flash_buffer(struct txgbe_hw *hw, u32 offset,
u32 dwords, u32 *data);
s32 txgbe_read_eeprom(struct txgbe_hw *hw,
u16 offset, u16 *data);
s32 txgbe_read_eeprom_buffer(struct txgbe_hw *hw, u16 offset,
u16 words, u16 *data);
s32 txgbe_init_eeprom_params(struct txgbe_hw *hw);
s32 txgbe_update_eeprom_checksum(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_flash(struct txgbe_hw *hw);
int txgbe_upgrade_flash(struct txgbe_hw *hw, u32 region,
const u8 *data, u32 size);
s32 txgbe_write_ee_hostif_buffer(struct txgbe_hw *hw,
u16 offset, u16 words, u16 *data);
s32 txgbe_write_ee_hostif(struct txgbe_hw *hw, u16 offset,
u16 data);
s32 txgbe_read_ee_hostif_buffer(struct txgbe_hw *hw,
u16 offset, u16 words, u16 *data);
s32 txgbe_read_ee_hostif(struct txgbe_hw *hw, u16 offset, u16 *data);
u32 txgbe_rd32_epcs(struct txgbe_hw *hw, u32 addr);
void txgbe_wr32_epcs(struct txgbe_hw *hw, u32 addr, u32 data);
void txgbe_wr32_ephy(struct txgbe_hw *hw, u32 addr, u32 data);
u32 rd32_ephy(struct txgbe_hw *hw, u32 addr);
s32 txgbe_upgrade_flash_hostif(struct txgbe_hw *hw, u32 region,
const u8 *data, u32 size);
s32 txgbe_close_notify(struct txgbe_hw *hw);
s32 txgbe_open_notify(struct txgbe_hw *hw);
s32 txgbe_set_link_to_kr(struct txgbe_hw *hw, bool autoneg);
s32 txgbe_set_link_to_kx4(struct txgbe_hw *hw, bool autoneg);
s32 txgbe_set_link_to_kx(struct txgbe_hw *hw,
u32 speed,
bool autoneg);
int txgbe_flash_read_dword(struct txgbe_hw *hw, u32 addr, u32 *data);
s32 txgbe_hic_write_lldp(struct txgbe_hw *hw,u32 open);
int txgbe_is_lldp(struct txgbe_hw *hw);
#endif /* _TXGBE_HW_H_ */

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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_mbx.c, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#include "txgbe_type.h"
#include "txgbe.h"
#include "txgbe_mbx.h"
/**
* txgbe_read_mbx - Reads a message from the mailbox
* @hw: pointer to the HW structure
* @msg: The message buffer
* @size: Length of buffer
* @mbx_id: id of mailbox to read
*
* returns SUCCESS if it successfuly read message from buffer
**/
int txgbe_read_mbx(struct txgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
int err = TXGBE_ERR_MBX;
/* limit read to size of mailbox */
if (size > mbx->size)
size = mbx->size;
err = TCALL(hw, mbx.ops.read, msg, size, mbx_id);
return err;
}
/**
* txgbe_write_mbx - Write a message to the mailbox
* @hw: pointer to the HW structure
* @msg: The message buffer
* @size: Length of buffer
* @mbx_id: id of mailbox to write
*
* returns SUCCESS if it successfully copied message into the buffer
**/
int txgbe_write_mbx(struct txgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
int err = 0;
if (size > mbx->size) {
err = TXGBE_ERR_MBX;
ERROR_REPORT2(TXGBE_ERROR_ARGUMENT,
"Invalid mailbox message size %d", size);
} else
err = TCALL(hw, mbx.ops.write, msg, size, mbx_id);
return err;
}
/**
* txgbe_check_for_msg - checks to see if someone sent us mail
* @hw: pointer to the HW structure
* @mbx_id: id of mailbox to check
*
* returns SUCCESS if the Status bit was found or else ERR_MBX
**/
int txgbe_check_for_msg(struct txgbe_hw *hw, u16 mbx_id)
{
int err = TXGBE_ERR_MBX;
err = TCALL(hw, mbx.ops.check_for_msg, mbx_id);
return err;
}
/**
* txgbe_check_for_ack - checks to see if someone sent us ACK
* @hw: pointer to the HW structure
* @mbx_id: id of mailbox to check
*
* returns SUCCESS if the Status bit was found or else ERR_MBX
**/
int txgbe_check_for_ack(struct txgbe_hw *hw, u16 mbx_id)
{
int err = TXGBE_ERR_MBX;
err = TCALL(hw, mbx.ops.check_for_ack, mbx_id);
return err;
}
/**
* txgbe_check_for_rst - checks to see if other side has reset
* @hw: pointer to the HW structure
* @mbx_id: id of mailbox to check
*
* returns SUCCESS if the Status bit was found or else ERR_MBX
**/
int txgbe_check_for_rst(struct txgbe_hw *hw, u16 mbx_id)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
int err = TXGBE_ERR_MBX;
if (mbx->ops.check_for_rst)
err = mbx->ops.check_for_rst(hw, mbx_id);
return err;
}
/**
* txgbe_poll_for_msg - Wait for message notification
* @hw: pointer to the HW structure
* @mbx_id: id of mailbox to write
*
* returns SUCCESS if it successfully received a message notification
**/
int txgbe_poll_for_msg(struct txgbe_hw *hw, u16 mbx_id)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
int countdown = mbx->timeout;
if (!countdown || !mbx->ops.check_for_msg)
goto out;
while (countdown && TCALL(hw, mbx.ops.check_for_msg, mbx_id)) {
countdown--;
if (!countdown)
break;
udelay(mbx->udelay);
}
if (countdown == 0)
ERROR_REPORT2(TXGBE_ERROR_POLLING,
"Polling for VF%d mailbox message timedout", mbx_id);
out:
return countdown ? 0 : TXGBE_ERR_MBX;
}
/**
* txgbe_poll_for_ack - Wait for message acknowledgement
* @hw: pointer to the HW structure
* @mbx_id: id of mailbox to write
*
* returns SUCCESS if it successfully received a message acknowledgement
**/
int txgbe_poll_for_ack(struct txgbe_hw *hw, u16 mbx_id)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
int countdown = mbx->timeout;
if (!countdown || !mbx->ops.check_for_ack)
goto out;
while (countdown && TCALL(hw, mbx.ops.check_for_ack, mbx_id)) {
countdown--;
if (!countdown)
break;
udelay(mbx->udelay);
}
if (countdown == 0)
ERROR_REPORT2(TXGBE_ERROR_POLLING,
"Polling for VF%d mailbox ack timedout", mbx_id);
out:
return countdown ? 0 : TXGBE_ERR_MBX;
}
/**
* txgbe_read_posted_mbx - Wait for message notification and receive message
* @hw: pointer to the HW structure
* @msg: The message buffer
* @size: Length of buffer
* @mbx_id: id of mailbox to write
*
* returns SUCCESS if it successfully received a message notification and
* copied it into the receive buffer.
**/
int txgbe_read_posted_mbx(struct txgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
int err = TXGBE_ERR_MBX;
if (!mbx->ops.read)
goto out;
err = txgbe_poll_for_msg(hw, mbx_id);
/* if ack received read message, otherwise we timed out */
if (!err)
err = TCALL(hw, mbx.ops.read, msg, size, mbx_id);
out:
return err;
}
/**
* txgbe_write_posted_mbx - Write a message to the mailbox, wait for ack
* @hw: pointer to the HW structure
* @msg: The message buffer
* @size: Length of buffer
* @mbx_id: id of mailbox to write
*
* returns SUCCESS if it successfully copied message into the buffer and
* received an ack to that message within delay * timeout period
**/
int txgbe_write_posted_mbx(struct txgbe_hw *hw, u32 *msg, u16 size,
u16 mbx_id)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
int err;
/* exit if either we can't write or there isn't a defined timeout */
if (!mbx->timeout)
return TXGBE_ERR_MBX;
/* send msg */
err = TCALL(hw, mbx.ops.write, msg, size, mbx_id);
/* if msg sent wait until we receive an ack */
if (!err)
err = txgbe_poll_for_ack(hw, mbx_id);
return err;
}
/**
* txgbe_init_mbx_ops - Initialize MB function pointers
* @hw: pointer to the HW structure
*
* Setups up the mailbox read and write message function pointers
**/
void txgbe_init_mbx_ops(struct txgbe_hw *hw)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
mbx->ops.read_posted = txgbe_read_posted_mbx;
mbx->ops.write_posted = txgbe_write_posted_mbx;
}
/**
* txgbe_read_v2p_mailbox - read v2p mailbox
* @hw: pointer to the HW structure
*
* This function is used to read the v2p mailbox without losing the read to
* clear status bits.
**/
u32 txgbe_read_v2p_mailbox(struct txgbe_hw *hw)
{
u32 v2p_mailbox = rd32(hw, TXGBE_VXMAILBOX);
v2p_mailbox |= hw->mbx.v2p_mailbox;
/* read and clear mirrored mailbox flags */
v2p_mailbox |= rd32a(hw, TXGBE_VXMBMEM, TXGBE_VXMAILBOX_SIZE);
wr32a(hw, TXGBE_VXMBMEM, TXGBE_VXMAILBOX_SIZE, 0);
hw->mbx.v2p_mailbox |= v2p_mailbox & TXGBE_VXMAILBOX_R2C_BITS;
return v2p_mailbox;
}
/**
* txgbe_check_for_bit_vf - Determine if a status bit was set
* @hw: pointer to the HW structure
* @mask: bitmask for bits to be tested and cleared
*
* This function is used to check for the read to clear bits within
* the V2P mailbox.
**/
int txgbe_check_for_bit_vf(struct txgbe_hw *hw, u32 mask)
{
u32 mailbox = txgbe_read_v2p_mailbox(hw);
hw->mbx.v2p_mailbox &= ~mask;
return (mailbox & mask ? 0 : TXGBE_ERR_MBX);
}
/**
* txgbe_check_for_msg_vf - checks to see if the PF has sent mail
* @hw: pointer to the HW structure
* @mbx_id: id of mailbox to check
*
* returns SUCCESS if the PF has set the Status bit or else ERR_MBX
**/
int txgbe_check_for_msg_vf(struct txgbe_hw *hw, u16 mbx_id)
{
int err = TXGBE_ERR_MBX;
UNREFERENCED_PARAMETER(mbx_id);
/* read clear the pf sts bit */
if (!txgbe_check_for_bit_vf(hw, TXGBE_VXMAILBOX_PFSTS)) {
err = 0;
hw->mbx.stats.reqs++;
}
return err;
}
/**
* txgbe_check_for_ack_vf - checks to see if the PF has ACK'd
* @hw: pointer to the HW structure
* @mbx_id: id of mailbox to check
*
* returns SUCCESS if the PF has set the ACK bit or else ERR_MBX
**/
int txgbe_check_for_ack_vf(struct txgbe_hw *hw, u16 mbx_id)
{
int err = TXGBE_ERR_MBX;
UNREFERENCED_PARAMETER(mbx_id);
/* read clear the pf ack bit */
if (!txgbe_check_for_bit_vf(hw, TXGBE_VXMAILBOX_PFACK)) {
err = 0;
hw->mbx.stats.acks++;
}
return err;
}
/**
* txgbe_check_for_rst_vf - checks to see if the PF has reset
* @hw: pointer to the HW structure
* @mbx_id: id of mailbox to check
*
* returns true if the PF has set the reset done bit or else false
**/
int txgbe_check_for_rst_vf(struct txgbe_hw *hw, u16 mbx_id)
{
int err = TXGBE_ERR_MBX;
UNREFERENCED_PARAMETER(mbx_id);
if (!txgbe_check_for_bit_vf(hw, (TXGBE_VXMAILBOX_RSTD |
TXGBE_VXMAILBOX_RSTI))) {
err = 0;
hw->mbx.stats.rsts++;
}
return err;
}
/**
* txgbe_obtain_mbx_lock_vf - obtain mailbox lock
* @hw: pointer to the HW structure
*
* return SUCCESS if we obtained the mailbox lock
**/
int txgbe_obtain_mbx_lock_vf(struct txgbe_hw *hw)
{
int err = TXGBE_ERR_MBX;
u32 mailbox;
/* Take ownership of the buffer */
wr32(hw, TXGBE_VXMAILBOX, TXGBE_VXMAILBOX_VFU);
/* reserve mailbox for vf use */
mailbox = txgbe_read_v2p_mailbox(hw);
if (mailbox & TXGBE_VXMAILBOX_VFU)
err = 0;
else
ERROR_REPORT2(TXGBE_ERROR_POLLING,
"Failed to obtain mailbox lock for VF");
return err;
}
/**
* txgbe_write_mbx_vf - Write a message to the mailbox
* @hw: pointer to the HW structure
* @msg: The message buffer
* @size: Length of buffer
* @mbx_id: id of mailbox to write
*
* returns SUCCESS if it successfully copied message into the buffer
**/
int txgbe_write_mbx_vf(struct txgbe_hw *hw, u32 *msg, u16 size,
u16 mbx_id)
{
int err;
u16 i;
UNREFERENCED_PARAMETER(mbx_id);
/* lock the mailbox to prevent pf/vf race condition */
err = txgbe_obtain_mbx_lock_vf(hw);
if (err)
goto out_no_write;
/* flush msg and acks as we are overwriting the message buffer */
txgbe_check_for_msg_vf(hw, 0);
txgbe_check_for_ack_vf(hw, 0);
/* copy the caller specified message to the mailbox memory buffer */
for (i = 0; i < size; i++)
wr32a(hw, TXGBE_VXMBMEM, i, msg[i]);
/* update stats */
hw->mbx.stats.msgs_tx++;
/* Drop VFU and interrupt the PF to tell it a message has been sent */
wr32(hw, TXGBE_VXMAILBOX, TXGBE_VXMAILBOX_REQ);
out_no_write:
return err;
}
/**
* txgbe_read_mbx_vf - Reads a message from the inbox intended for vf
* @hw: pointer to the HW structure
* @msg: The message buffer
* @size: Length of buffer
* @mbx_id: id of mailbox to read
*
* returns SUCCESS if it successfuly read message from buffer
**/
int txgbe_read_mbx_vf(struct txgbe_hw *hw, u32 *msg, u16 size,
u16 mbx_id)
{
int err = 0;
u16 i;
UNREFERENCED_PARAMETER(mbx_id);
/* lock the mailbox to prevent pf/vf race condition */
err = txgbe_obtain_mbx_lock_vf(hw);
if (err)
goto out_no_read;
/* copy the message from the mailbox memory buffer */
for (i = 0; i < size; i++)
msg[i] = rd32a(hw, TXGBE_VXMBMEM, i);
/* Acknowledge receipt and release mailbox, then we're done */
wr32(hw, TXGBE_VXMAILBOX, TXGBE_VXMAILBOX_ACK);
/* update stats */
hw->mbx.stats.msgs_rx++;
out_no_read:
return err;
}
/**
* txgbe_init_mbx_params_vf - set initial values for vf mailbox
* @hw: pointer to the HW structure
*
* Initializes the hw->mbx struct to correct values for vf mailbox
*/
void txgbe_init_mbx_params_vf(struct txgbe_hw *hw)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
/* start mailbox as timed out and let the reset_hw call set the timeout
* value to begin communications */
mbx->timeout = 0;
mbx->udelay = TXGBE_VF_MBX_INIT_DELAY;
mbx->size = TXGBE_VXMAILBOX_SIZE;
mbx->ops.read = txgbe_read_mbx_vf;
mbx->ops.write = txgbe_write_mbx_vf;
mbx->ops.read_posted = txgbe_read_posted_mbx;
mbx->ops.write_posted = txgbe_write_posted_mbx;
mbx->ops.check_for_msg = txgbe_check_for_msg_vf;
mbx->ops.check_for_ack = txgbe_check_for_ack_vf;
mbx->ops.check_for_rst = txgbe_check_for_rst_vf;
mbx->stats.msgs_tx = 0;
mbx->stats.msgs_rx = 0;
mbx->stats.reqs = 0;
mbx->stats.acks = 0;
mbx->stats.rsts = 0;
}
int txgbe_check_for_bit_pf(struct txgbe_hw *hw, u32 mask, int index)
{
u32 mbvficr = rd32(hw, TXGBE_MBVFICR(index));
int err = TXGBE_ERR_MBX;
if (mbvficr & mask) {
err = 0;
wr32(hw, TXGBE_MBVFICR(index), mask);
}
return err;
}
/**
* txgbe_check_for_msg_pf - checks to see if the VF has sent mail
* @hw: pointer to the HW structure
* @vf: the VF index
*
* returns SUCCESS if the VF has set the Status bit or else ERR_MBX
**/
int txgbe_check_for_msg_pf(struct txgbe_hw *hw, u16 vf)
{
int err = TXGBE_ERR_MBX;
int index = TXGBE_MBVFICR_INDEX(vf);
u32 vf_bit = vf % 16;
if (!txgbe_check_for_bit_pf(hw, TXGBE_MBVFICR_VFREQ_VF1 << vf_bit,
index)) {
err = 0;
hw->mbx.stats.reqs++;
}
return err;
}
/**
* txgbe_check_for_ack_pf - checks to see if the VF has ACKed
* @hw: pointer to the HW structure
* @vf: the VF index
*
* returns SUCCESS if the VF has set the Status bit or else ERR_MBX
**/
int txgbe_check_for_ack_pf(struct txgbe_hw *hw, u16 vf)
{
int err = TXGBE_ERR_MBX;
int index = TXGBE_MBVFICR_INDEX(vf);
u32 vf_bit = vf % 16;
if (!txgbe_check_for_bit_pf(hw, TXGBE_MBVFICR_VFACK_VF1 << vf_bit,
index)) {
err = 0;
hw->mbx.stats.acks++;
}
return err;
}
/**
* txgbe_check_for_rst_pf - checks to see if the VF has reset
* @hw: pointer to the HW structure
* @vf: the VF index
*
* returns SUCCESS if the VF has set the Status bit or else ERR_MBX
**/
int txgbe_check_for_rst_pf(struct txgbe_hw *hw, u16 vf)
{
u32 reg_offset = (vf < 32) ? 0 : 1;
u32 vf_shift = vf % 32;
u32 vflre = 0;
int err = TXGBE_ERR_MBX;
vflre = rd32(hw, TXGBE_VFLRE(reg_offset));
if (vflre & (1 << vf_shift)) {
err = 0;
wr32(hw, TXGBE_VFLREC(reg_offset), (1 << vf_shift));
hw->mbx.stats.rsts++;
}
return err;
}
/**
* txgbe_obtain_mbx_lock_pf - obtain mailbox lock
* @hw: pointer to the HW structure
* @vf: the VF index
*
* return SUCCESS if we obtained the mailbox lock
**/
int txgbe_obtain_mbx_lock_pf(struct txgbe_hw *hw, u16 vf)
{
int err = TXGBE_ERR_MBX;
u32 mailbox;
/* Take ownership of the buffer */
wr32(hw, TXGBE_PXMAILBOX(vf), TXGBE_PXMAILBOX_PFU);
/* reserve mailbox for vf use */
mailbox = rd32(hw, TXGBE_PXMAILBOX(vf));
if (mailbox & TXGBE_PXMAILBOX_PFU)
err = 0;
else
ERROR_REPORT2(TXGBE_ERROR_POLLING,
"Failed to obtain mailbox lock for PF%d", vf);
return err;
}
/**
* txgbe_write_mbx_pf - Places a message in the mailbox
* @hw: pointer to the HW structure
* @msg: The message buffer
* @size: Length of buffer
* @vf: the VF index
*
* returns SUCCESS if it successfully copied message into the buffer
**/
int txgbe_write_mbx_pf(struct txgbe_hw *hw, u32 *msg, u16 size,
u16 vf)
{
int err;
u16 i;
/* lock the mailbox to prevent pf/vf race condition */
err = txgbe_obtain_mbx_lock_pf(hw, vf);
if (err)
goto out_no_write;
/* flush msg and acks as we are overwriting the message buffer */
txgbe_check_for_msg_pf(hw, vf);
txgbe_check_for_ack_pf(hw, vf);
/* copy the caller specified message to the mailbox memory buffer */
for (i = 0; i < size; i++)
wr32a(hw, TXGBE_PXMBMEM(vf), i, msg[i]);
/* Interrupt VF to tell it a message has been sent and release buffer*/
/* set mirrored mailbox flags */
wr32a(hw, TXGBE_PXMBMEM(vf), TXGBE_VXMAILBOX_SIZE, TXGBE_PXMAILBOX_STS);
wr32(hw, TXGBE_PXMAILBOX(vf), TXGBE_PXMAILBOX_STS);
/* update stats */
hw->mbx.stats.msgs_tx++;
out_no_write:
return err;
}
/**
* txgbe_read_mbx_pf - Read a message from the mailbox
* @hw: pointer to the HW structure
* @msg: The message buffer
* @size: Length of buffer
* @vf: the VF index
*
* This function copies a message from the mailbox buffer to the caller's
* memory buffer. The presumption is that the caller knows that there was
* a message due to a VF request so no polling for message is needed.
**/
int txgbe_read_mbx_pf(struct txgbe_hw *hw, u32 *msg, u16 size,
u16 vf)
{
int err;
u16 i;
/* lock the mailbox to prevent pf/vf race condition */
err = txgbe_obtain_mbx_lock_pf(hw, vf);
if (err)
goto out_no_read;
/* copy the message to the mailbox memory buffer */
for (i = 0; i < size; i++)
msg[i] = rd32a(hw, TXGBE_PXMBMEM(vf), i);
/* Acknowledge the message and release buffer */
/* set mirrored mailbox flags */
wr32a(hw, TXGBE_PXMBMEM(vf), TXGBE_VXMAILBOX_SIZE, TXGBE_PXMAILBOX_ACK);
wr32(hw, TXGBE_PXMAILBOX(vf), TXGBE_PXMAILBOX_ACK);
/* update stats */
hw->mbx.stats.msgs_rx++;
out_no_read:
return err;
}
/**
* txgbe_init_mbx_params_pf - set initial values for pf mailbox
* @hw: pointer to the HW structure
*
* Initializes the hw->mbx struct to correct values for pf mailbox
*/
void txgbe_init_mbx_params_pf(struct txgbe_hw *hw)
{
struct txgbe_mbx_info *mbx = &hw->mbx;
mbx->timeout = 0;
mbx->udelay = 0;
mbx->size = TXGBE_VXMAILBOX_SIZE;
mbx->ops.read = txgbe_read_mbx_pf;
mbx->ops.write = txgbe_write_mbx_pf;
mbx->ops.read_posted = txgbe_read_posted_mbx;
mbx->ops.write_posted = txgbe_write_posted_mbx;
mbx->ops.check_for_msg = txgbe_check_for_msg_pf;
mbx->ops.check_for_ack = txgbe_check_for_ack_pf;
mbx->ops.check_for_rst = txgbe_check_for_rst_pf;
mbx->stats.msgs_tx = 0;
mbx->stats.msgs_rx = 0;
mbx->stats.reqs = 0;
mbx->stats.acks = 0;
mbx->stats.rsts = 0;
}

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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_mbx.h, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#ifndef _TXGBE_MBX_H_
#define _TXGBE_MBX_H_
#define TXGBE_VXMAILBOX_SIZE (16 - 1)
/**
* VF Registers
**/
#define TXGBE_VXMAILBOX 0x00600
#define TXGBE_VXMAILBOX_REQ ((0x1) << 0) /* Request for PF Ready bit */
#define TXGBE_VXMAILBOX_ACK ((0x1) << 1) /* Ack PF message received */
#define TXGBE_VXMAILBOX_VFU ((0x1) << 2) /* VF owns the mailbox buffer */
#define TXGBE_VXMAILBOX_PFU ((0x1) << 3) /* PF owns the mailbox buffer */
#define TXGBE_VXMAILBOX_PFSTS ((0x1) << 4) /* PF wrote a message in the MB */
#define TXGBE_VXMAILBOX_PFACK ((0x1) << 5) /* PF ack the previous VF msg */
#define TXGBE_VXMAILBOX_RSTI ((0x1) << 6) /* PF has reset indication */
#define TXGBE_VXMAILBOX_RSTD ((0x1) << 7) /* PF has indicated reset done */
#define TXGBE_VXMAILBOX_R2C_BITS (TXGBE_VXMAILBOX_RSTD | \
TXGBE_VXMAILBOX_PFSTS | TXGBE_VXMAILBOX_PFACK)
#define TXGBE_VXMBMEM 0x00C00 /* 16*4B */
/**
* PF Registers
**/
#define TXGBE_PXMAILBOX(i) (0x00600 + (4 * (i))) /* i=[0,63] */
#define TXGBE_PXMAILBOX_STS ((0x1) << 0) /* Initiate message send to VF */
#define TXGBE_PXMAILBOX_ACK ((0x1) << 1) /* Ack message recv'd from VF */
#define TXGBE_PXMAILBOX_VFU ((0x1) << 2) /* VF owns the mailbox buffer */
#define TXGBE_PXMAILBOX_PFU ((0x1) << 3) /* PF owns the mailbox buffer */
#define TXGBE_PXMAILBOX_RVFU ((0x1) << 4) /* Reset VFU - used when VF stuck*/
#define TXGBE_PXMBMEM(i) (0x5000 + (64 * (i))) /* i=[0,63] */
#define TXGBE_VFLRP(i) (0x00490 + (4 * (i))) /* i=[0,1] */
#define TXGBE_VFLRE(i) (0x004A0 + (4 * (i))) /* i=[0,1] */
#define TXGBE_VFLREC(i) (0x004A8 + (4 * (i))) /* i=[0,1] */
/* SR-IOV specific macros */
#define TXGBE_MBVFICR(i) (0x00480 + (4 * (i))) /* i=[0,3] */
#define TXGBE_MBVFICR_INDEX(vf) ((vf) >> 4)
#define TXGBE_MBVFICR_VFREQ_MASK (0x0000FFFF) /* bits for VF messages */
#define TXGBE_MBVFICR_VFREQ_VF1 (0x00000001) /* bit for VF 1 message */
#define TXGBE_MBVFICR_VFACK_MASK (0xFFFF0000) /* bits for VF acks */
#define TXGBE_MBVFICR_VFACK_VF1 (0x00010000) /* bit for VF 1 ack */
/**
* Messages
**/
/* If it's a TXGBE_VF_* msg then it originates in the VF and is sent to the
* PF. The reverse is true if it is TXGBE_PF_*.
* Message ACK's are the value or'd with 0xF0000000
*/
#define TXGBE_VT_MSGTYPE_ACK 0x80000000 /* Messages below or'd with
* this are the ACK */
#define TXGBE_VT_MSGTYPE_NACK 0x40000000 /* Messages below or'd with
* this are the NACK */
#define TXGBE_VT_MSGTYPE_CTS 0x20000000 /* Indicates that VF is still
* clear to send requests */
#define TXGBE_VT_MSGINFO_SHIFT 16
/* bits 23:16 are used for extra info for certain messages */
#define TXGBE_VT_MSGINFO_MASK (0xFF << TXGBE_VT_MSGINFO_SHIFT)
/* definitions to support mailbox API version negotiation */
/*
* each element denotes a version of the API; existing numbers may not
* change; any additions must go at the end
*/
enum txgbe_pfvf_api_rev {
txgbe_mbox_api_null,
txgbe_mbox_api_10, /* API version 1.0, linux/freebsd VF driver */
txgbe_mbox_api_11, /* API version 1.1, linux/freebsd VF driver */
txgbe_mbox_api_12, /* API version 1.2, linux/freebsd VF driver */
txgbe_mbox_api_13, /* API version 1.3, linux/freebsd VF driver */
txgbe_mbox_api_20, /* API version 2.0, solaris Phase1 VF driver */
txgbe_mbox_api_unknown, /* indicates that API version is not known */
};
/* mailbox API, legacy requests */
#define TXGBE_VF_RESET 0x01 /* VF requests reset */
#define TXGBE_VF_SET_MAC_ADDR 0x02 /* VF requests PF to set MAC addr */
#define TXGBE_VF_SET_MULTICAST 0x03 /* VF requests PF to set MC addr */
#define TXGBE_VF_SET_VLAN 0x04 /* VF requests PF to set VLAN */
/* mailbox API, version 1.0 VF requests */
#define TXGBE_VF_SET_LPE 0x05 /* VF requests PF to set VMOLR.LPE */
#define TXGBE_VF_SET_MACVLAN 0x06 /* VF requests PF for unicast filter */
#define TXGBE_VF_API_NEGOTIATE 0x08 /* negotiate API version */
/* mailbox API, version 1.1 VF requests */
#define TXGBE_VF_GET_QUEUES 0x09 /* get queue configuration */
/* mailbox API, version 1.2 VF requests */
#define TXGBE_VF_GET_RETA 0x0a /* VF request for RETA */
#define TXGBE_VF_GET_RSS_KEY 0x0b /* get RSS key */
#define TXGBE_VF_UPDATE_XCAST_MODE 0x0c
#define TXGBE_VF_GET_LINK_STATE 0x10 /* get vf link state */
#define TXGBE_VF_GET_FW_VERSION 0x11 /* get fw version */
#define TXGBE_VF_BACKUP 0x8001 /* VF requests backup */
/* mode choices for IXGBE_VF_UPDATE_XCAST_MODE */
enum txgbevf_xcast_modes {
TXGBEVF_XCAST_MODE_NONE = 0,
TXGBEVF_XCAST_MODE_MULTI,
TXGBEVF_XCAST_MODE_ALLMULTI,
TXGBEVF_XCAST_MODE_PROMISC,
};
/* GET_QUEUES return data indices within the mailbox */
#define TXGBE_VF_TX_QUEUES 1 /* number of Tx queues supported */
#define TXGBE_VF_RX_QUEUES 2 /* number of Rx queues supported */
#define TXGBE_VF_TRANS_VLAN 3 /* Indication of port vlan */
#define TXGBE_VF_DEF_QUEUE 4 /* Default queue offset */
/* length of permanent address message returned from PF */
#define TXGBE_VF_PERMADDR_MSG_LEN 4
/* word in permanent address message with the current multicast type */
#define TXGBE_VF_MC_TYPE_WORD 3
#define TXGBE_PF_CONTROL_MSG 0x0100 /* PF control message */
/* mailbox API, version 2.0 VF requests */
#define TXGBE_VF_API_NEGOTIATE 0x08 /* negotiate API version */
#define TXGBE_VF_GET_QUEUES 0x09 /* get queue configuration */
#define TXGBE_VF_ENABLE_MACADDR 0x0A /* enable MAC address */
#define TXGBE_VF_DISABLE_MACADDR 0x0B /* disable MAC address */
#define TXGBE_VF_GET_MACADDRS 0x0C /* get all configured MAC addrs */
#define TXGBE_VF_SET_MCAST_PROMISC 0x0D /* enable multicast promiscuous */
#define TXGBE_VF_GET_MTU 0x0E /* get bounds on MTU */
#define TXGBE_VF_SET_MTU 0x0F /* set a specific MTU */
/* mailbox API, version 2.0 PF requests */
#define TXGBE_PF_TRANSPARENT_VLAN 0x0101 /* enable transparent vlan */
#define TXGBE_VF_MBX_INIT_TIMEOUT 2000 /* number of retries on mailbox */
#define TXGBE_VF_MBX_INIT_DELAY 500 /* microseconds between retries */
int txgbe_read_mbx(struct txgbe_hw *, u32 *, u16, u16);
int txgbe_write_mbx(struct txgbe_hw *, u32 *, u16, u16);
int txgbe_read_posted_mbx(struct txgbe_hw *, u32 *, u16, u16);
int txgbe_write_posted_mbx(struct txgbe_hw *, u32 *, u16, u16);
int txgbe_check_for_msg(struct txgbe_hw *, u16);
int txgbe_check_for_ack(struct txgbe_hw *, u16);
int txgbe_check_for_rst(struct txgbe_hw *, u16);
void txgbe_init_mbx_ops(struct txgbe_hw *hw);
void txgbe_init_mbx_params_vf(struct txgbe_hw *);
void txgbe_init_mbx_params_pf(struct txgbe_hw *);
#endif /* _TXGBE_MBX_H_ */

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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_osdep.h, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
/* glue for the OS independent part of txgbe
* includes register access macros
*/
#ifndef _TXGBE_OSDEP_H_
#define _TXGBE_OSDEP_H_
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/if_ether.h>
#include <linux/sched.h>
#include "txgbe_kcompat.h"
#define TXGBE_CPU_TO_BE16(_x) cpu_to_be16(_x)
#define TXGBE_BE16_TO_CPU(_x) be16_to_cpu(_x)
#define TXGBE_CPU_TO_BE32(_x) cpu_to_be32(_x)
#define TXGBE_BE32_TO_CPU(_x) be32_to_cpu(_x)
#define msec_delay(_x) msleep(_x)
#define usec_delay(_x) udelay(_x)
#define STATIC static
#define IOMEM __iomem
#define TXGBE_NAME "txgbe"
/* #define DBG 1 */
#define DPRINTK(nlevel, klevel, fmt, args...) \
((void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \
printk(KERN_##klevel TXGBE_NAME ": %s: %s: " fmt, \
adapter->netdev->name, \
__func__, ## args)))
#ifndef _WIN32
#define txgbe_emerg(fmt, ...) printk(KERN_EMERG fmt, ## __VA_ARGS__)
#define txgbe_alert(fmt, ...) printk(KERN_ALERT fmt, ## __VA_ARGS__)
#define txgbe_crit(fmt, ...) printk(KERN_CRIT fmt, ## __VA_ARGS__)
#define txgbe_error(fmt, ...) printk(KERN_ERR fmt, ## __VA_ARGS__)
#define txgbe_warn(fmt, ...) printk(KERN_WARNING fmt, ## __VA_ARGS__)
#define txgbe_notice(fmt, ...) printk(KERN_NOTICE fmt, ## __VA_ARGS__)
#define txgbe_info(fmt, ...) printk(KERN_INFO fmt, ## __VA_ARGS__)
#define txgbe_print(fmt, ...) printk(KERN_DEBUG fmt, ## __VA_ARGS__)
#define txgbe_trace(fmt, ...) printk(KERN_INFO fmt, ## __VA_ARGS__)
#else /* _WIN32 */
#define txgbe_error(lvl, fmt, ...) \
DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_ERROR_LEVEL, \
"%s-error: %s@%d, " fmt, \
"txgbe", __FUNCTION__, __LINE__, ## __VA_ARGS__)
#endif /* !_WIN32 */
#ifdef DBG
#ifndef _WIN32
#define txgbe_debug(fmt, ...) \
printk(KERN_DEBUG \
"%s-debug: %s@%d, " fmt, \
"txgbe", __FUNCTION__, __LINE__, ## __VA_ARGS__)
#else /* _WIN32 */
#define txgbe_debug(fmt, ...) \
DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_ERROR_LEVEL, \
"%s-debug: %s@%d, " fmt, \
"txgbe", __FUNCTION__, __LINE__, ## __VA_ARGS__)
#endif /* _WIN32 */
#else /* DBG */
#define txgbe_debug(fmt, ...) do {} while (0)
#endif /* DBG */
#ifdef DBG
#define ASSERT(_x) BUG_ON(!(_x))
#define DEBUGOUT(S) printk(KERN_DEBUG S)
#define DEBUGOUT1(S, A...) printk(KERN_DEBUG S, ## A)
#define DEBUGOUT2(S, A...) printk(KERN_DEBUG S, ## A)
#define DEBUGOUT3(S, A...) printk(KERN_DEBUG S, ## A)
#define DEBUGOUT4(S, A...) printk(KERN_DEBUG S, ## A)
#define DEBUGOUT5(S, A...) printk(KERN_DEBUG S, ## A)
#define DEBUGOUT6(S, A...) printk(KERN_DEBUG S, ## A)
#define DEBUGFUNC(fmt, ...) txgbe_debug(fmt, ## __VA_ARGS__)
#else
#define ASSERT(_x) do {} while (0)
#define DEBUGOUT(S) do {} while (0)
#define DEBUGOUT1(S, A...) do {} while (0)
#define DEBUGOUT2(S, A...) do {} while (0)
#define DEBUGOUT3(S, A...) do {} while (0)
#define DEBUGOUT4(S, A...) do {} while (0)
#define DEBUGOUT5(S, A...) do {} while (0)
#define DEBUGOUT6(S, A...) do {} while (0)
#define DEBUGFUNC(fmt, ...) do {} while (0)
#endif
#define TXGBE_SFP_DETECT_RETRIES 2
struct txgbe_hw;
struct txgbe_msg {
u16 msg_enable;
};
struct net_device *txgbe_hw_to_netdev(const struct txgbe_hw *hw);
struct txgbe_msg *txgbe_hw_to_msg(const struct txgbe_hw *hw);
#define hw_dbg(hw, format, arg...) \
netdev_dbg(txgbe_hw_to_netdev(hw), format, ## arg)
#define hw_err(hw, format, arg...) \
netdev_err(txgbe_hw_to_netdev(hw), format, ## arg)
#define e_dev_info(format, arg...) \
dev_info(pci_dev_to_dev(adapter->pdev), format, ## arg)
#define e_dev_warn(format, arg...) \
dev_warn(pci_dev_to_dev(adapter->pdev), format, ## arg)
#define e_dev_err(format, arg...) \
dev_err(pci_dev_to_dev(adapter->pdev), format, ## arg)
#define e_dev_notice(format, arg...) \
dev_notice(pci_dev_to_dev(adapter->pdev), format, ## arg)
#define e_dbg(msglvl, format, arg...) \
netif_dbg(adapter, msglvl, adapter->netdev, format, ## arg)
#define e_info(msglvl, format, arg...) \
netif_info(adapter, msglvl, adapter->netdev, format, ## arg)
#define e_err(msglvl, format, arg...) \
netif_err(adapter, msglvl, adapter->netdev, format, ## arg)
#define e_warn(msglvl, format, arg...) \
netif_warn(adapter, msglvl, adapter->netdev, format, ## arg)
#define e_crit(msglvl, format, arg...) \
netif_crit(adapter, msglvl, adapter->netdev, format, ## arg)
#define TXGBE_FAILED_READ_CFG_DWORD 0xffffffffU
#define TXGBE_FAILED_READ_CFG_WORD 0xffffU
#define TXGBE_FAILED_READ_CFG_BYTE 0xffU
extern u32 txgbe_read_reg(struct txgbe_hw *hw, u32 reg, bool quiet);
extern u16 txgbe_read_pci_cfg_word(struct txgbe_hw *hw, u32 reg);
extern void txgbe_write_pci_cfg_word(struct txgbe_hw *hw, u32 reg, u16 value);
#define TXGBE_READ_PCIE_WORD txgbe_read_pci_cfg_word
#define TXGBE_WRITE_PCIE_WORD txgbe_write_pci_cfg_word
#define TXGBE_R32_Q(h, r) txgbe_read_reg(h, r, true)
#ifndef writeq
#define writeq(val, addr) do { writel((u32) (val), addr); \
writel((u32) (val >> 32), (addr + 4)); \
} while (0);
#endif
#define TXGBE_EEPROM_GRANT_ATTEMPS 100
#define TXGBE_HTONL(_i) htonl(_i)
#define TXGBE_NTOHL(_i) ntohl(_i)
#define TXGBE_NTOHS(_i) ntohs(_i)
#define TXGBE_CPU_TO_LE32(_i) cpu_to_le32(_i)
#define TXGBE_LE32_TO_CPUS(_i) le32_to_cpus(_i)
enum {
TXGBE_ERROR_SOFTWARE,
TXGBE_ERROR_POLLING,
TXGBE_ERROR_INVALID_STATE,
TXGBE_ERROR_UNSUPPORTED,
TXGBE_ERROR_ARGUMENT,
TXGBE_ERROR_CAUTION,
};
#define ERROR_REPORT(level, format, arg...) do { \
switch (level) { \
case TXGBE_ERROR_SOFTWARE: \
case TXGBE_ERROR_CAUTION: \
case TXGBE_ERROR_POLLING: \
netif_warn(txgbe_hw_to_msg(hw), drv, txgbe_hw_to_netdev(hw), \
format, ## arg); \
break; \
case TXGBE_ERROR_INVALID_STATE: \
case TXGBE_ERROR_UNSUPPORTED: \
case TXGBE_ERROR_ARGUMENT: \
netif_err(txgbe_hw_to_msg(hw), hw, txgbe_hw_to_netdev(hw), \
format, ## arg); \
break; \
default: \
break; \
} \
} while (0)
#define ERROR_REPORT1 ERROR_REPORT
#define ERROR_REPORT2 ERROR_REPORT
#define ERROR_REPORT3 ERROR_REPORT
#define UNREFERENCED_XPARAMETER
#define UNREFERENCED_1PARAMETER(_p) do { \
uninitialized_var(_p); \
} while (0)
#define UNREFERENCED_2PARAMETER(_p, _q) do { \
uninitialized_var(_p); \
uninitialized_var(_q); \
} while (0)
#define UNREFERENCED_3PARAMETER(_p, _q, _r) do { \
uninitialized_var(_p); \
uninitialized_var(_q); \
uninitialized_var(_r); \
} while (0)
#define UNREFERENCED_4PARAMETER(_p, _q, _r, _s) do { \
uninitialized_var(_p); \
uninitialized_var(_q); \
uninitialized_var(_r); \
uninitialized_var(_s); \
} while (0)
#define UNREFERENCED_PARAMETER(_p) UNREFERENCED_1PARAMETER(_p)
#endif /* _TXGBE_OSDEP_H_ */

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#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/bitops.h>
#include "txgbe_pcierr.h"
#include "txgbe.h"
#define TXGBE_ROOT_PORT_INTR_ON_MESG_MASK (PCI_ERR_ROOT_CMD_COR_EN| \
PCI_ERR_ROOT_CMD_NONFATAL_EN| \
PCI_ERR_ROOT_CMD_FATAL_EN)
#ifndef PCI_ERS_RESULT_NO_AER_DRIVER
/* No AER capabilities registered for the driver */
#define PCI_ERS_RESULT_NO_AER_DRIVER ((__force pci_ers_result_t) 6)
#endif
static const char *aer_correctable_error_string[16] = {
"RxErr", /* Bit Position 0 */
NULL,
NULL,
NULL,
NULL,
NULL,
"BadTLP", /* Bit Position 6 */
"BadDLLP", /* Bit Position 7 */
"Rollover", /* Bit Position 8 */
NULL,
NULL,
NULL,
"Timeout", /* Bit Position 12 */
"NonFatalErr", /* Bit Position 13 */
"CorrIntErr", /* Bit Position 14 */
"HeaderOF", /* Bit Position 15 */
};
static const char *aer_uncorrectable_error_string[27] = {
"Undefined", /* Bit Position 0 */
NULL,
NULL,
NULL,
"DLP", /* Bit Position 4 */
"SDES", /* Bit Position 5 */
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
"TLP", /* Bit Position 12 */
"FCP", /* Bit Position 13 */
"CmpltTO", /* Bit Position 14 */
"CmpltAbrt", /* Bit Position 15 */
"UnxCmplt", /* Bit Position 16 */
"RxOF", /* Bit Position 17 */
"MalfTLP", /* Bit Position 18 */
"ECRC", /* Bit Position 19 */
"UnsupReq", /* Bit Position 20 */
"ACSViol", /* Bit Position 21 */
"UncorrIntErr", /* Bit Position 22 */
"BlockedTLP", /* Bit Position 23 */
"AtomicOpBlocked", /* Bit Position 24 */
"TLPBlockedErr", /* Bit Position 25 */
"PoisonTLPBlocked", /* Bit Position 26 */
};
#if (RHEL_RELEASE_CODE && (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)))
/* redefinition because centos 6 can't use pci_walk_bus in pci.h*/
struct rw_semaphore pci_bus_sem;
/** pci_walk_bus - walk devices on/under bus, calling callback.
* @top bus whose devices should be walked
* @cb callback to be called for each device found
* @userdata arbitrary pointer to be passed to callback.
*
* Walk the given bus, including any bridged devices
* on buses under this bus. Call the provided callback
* on each device found.
*
* We check the return of @cb each time. If it returns anything
* other than 0, we break out.
*
*/
void pci_walk_bus(struct pci_bus *top, int (*cb)(struct pci_dev *, void *),
void *userdata)
{
struct pci_dev *dev;
struct pci_bus *bus;
struct list_head *next;
int retval;
bus = top;
down_read(&pci_bus_sem);
next = top->devices.next;
for (;;) {
if (next == &bus->devices) {
/* end of this bus, go up or finish */
if (bus == top)
break;
next = bus->self->bus_list.next;
bus = bus->self->bus;
continue;
}
dev = list_entry(next, struct pci_dev, bus_list);
if (dev->subordinate) {
/* this is a pci-pci bridge, do its devices next */
next = dev->subordinate->devices.next;
bus = dev->subordinate;
} else
next = dev->bus_list.next;
retval = cb(dev, userdata);
if (retval)
break;
}
up_read(&pci_bus_sem);
}
#endif
static pci_ers_result_t merge_result(enum pci_ers_result orig,
enum pci_ers_result new)
{
if (new == PCI_ERS_RESULT_NO_AER_DRIVER)
return PCI_ERS_RESULT_NO_AER_DRIVER;
if (new == PCI_ERS_RESULT_NONE)
return orig;
switch (orig) {
case PCI_ERS_RESULT_CAN_RECOVER:
case PCI_ERS_RESULT_RECOVERED:
orig = new;
break;
case PCI_ERS_RESULT_DISCONNECT:
if (new == PCI_ERS_RESULT_NEED_RESET)
orig = PCI_ERS_RESULT_NEED_RESET;
break;
default:
break;
}
return orig;
}
static int txgbe_report_error_detected(struct pci_dev *dev,
pci_channel_state_t state,
enum pci_ers_result *result)
{
pci_ers_result_t vote;
const struct pci_error_handlers *err_handler;
device_lock(&dev->dev);
if (
!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->error_detected) {
/*
* If any device in the subtree does not have an error_detected
* callback, PCI_ERS_RESULT_NO_AER_DRIVER prevents subsequent
* error callbacks of "any" device in the subtree, and will
* exit in the disconnected error state.
*/
if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE)
vote = PCI_ERS_RESULT_NO_AER_DRIVER;
else
vote = PCI_ERS_RESULT_NONE;
} else {
err_handler = dev->driver->err_handler;
vote = err_handler->error_detected(dev, state);
}
*result = merge_result(*result, vote);
device_unlock(&dev->dev);
return 0;
}
static int txgbe_report_frozen_detected(struct pci_dev *dev, void *data)
{
return txgbe_report_error_detected(dev, pci_channel_io_frozen, data);
}
static int txgbe_report_mmio_enabled(struct pci_dev *dev, void *data)
{
pci_ers_result_t vote, *result = data;
const struct pci_error_handlers *err_handler;
device_lock(&dev->dev);
if (!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->mmio_enabled)
goto out;
err_handler = dev->driver->err_handler;
vote = err_handler->mmio_enabled(dev);
*result = merge_result(*result, vote);
out:
device_unlock(&dev->dev);
return 0;
}
static int txgbe_report_slot_reset(struct pci_dev *dev, void *data)
{
pci_ers_result_t vote, *result = data;
const struct pci_error_handlers *err_handler;
device_lock(&dev->dev);
if (!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->slot_reset)
goto out;
err_handler = dev->driver->err_handler;
vote = err_handler->slot_reset(dev);
*result = merge_result(*result, vote);
out:
device_unlock(&dev->dev);
return 0;
}
static int txgbe_report_resume(struct pci_dev *dev, void *data)
{
const struct pci_error_handlers *err_handler;
device_lock(&dev->dev);
dev->error_state = pci_channel_io_normal;
if (
!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->resume)
goto out;
err_handler = dev->driver->err_handler;
err_handler->resume(dev);
out:
device_unlock(&dev->dev);
return 0;
}
void txgbe_pcie_do_recovery(struct pci_dev *dev)
{
pci_ers_result_t status = PCI_ERS_RESULT_CAN_RECOVER;
struct pci_bus *bus;
u32 reg32;
int pos;
int delay = 1;
u32 id;
u16 ctrl;
/*
* Error recovery runs on all subordinates of the first downstream port.
* If the downstream port detected the error, it is cleared at the end.
*/
if (!(pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT ||
pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM))
dev = dev->bus->self;
bus = dev->subordinate;
pci_walk_bus(bus, txgbe_report_frozen_detected, &status);
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
if (pos) {
/* Disable Root's interrupt in response to error messages */
pci_read_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, &reg32);
reg32 &= ~TXGBE_ROOT_PORT_INTR_ON_MESG_MASK;
pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, reg32);
}
pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &ctrl);
ctrl |= PCI_BRIDGE_CTL_BUS_RESET;
pci_write_config_word(dev, PCI_BRIDGE_CONTROL, ctrl);
/*
* * PCI spec v3.0 7.6.4.2 requires minimum Trst of 1ms. Double
* * this to 2ms to ensure that we meet the minimum requirement.
* */
msleep(2);
ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET;
pci_write_config_word(dev, PCI_BRIDGE_CONTROL, ctrl);
/*
* * Trhfa for conventional PCI is 2^25 clock cycles.
* * Assuming a minimum 33MHz clock this results in a 1s
* * delay before we can consider subordinate devices to
* * be re-initialized. PCIe has some ways to shorten this,
* * but we don't make use of them yet.
* */
ssleep(1);
pci_read_config_dword(dev, PCI_COMMAND, &id);
while (id == ~0) {
if (delay > 60000) {
pci_warn(dev, "not ready %dms after %s; giving up\n",
delay - 1, "bus_reset");
return;
}
if (delay > 1000)
pci_info(dev, "not ready %dms after %s; waiting\n",
delay - 1, "bus_reset");
msleep(delay);
delay *= 2;
pci_read_config_dword(dev, PCI_COMMAND, &id);
}
if (delay > 1000)
pci_info(dev, "ready %dms after %s\n", delay - 1,
"bus_reset");
pci_info(dev, "Root Port link has been reset\n");
if (pos) {
/* Clear Root Error Status */
pci_read_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, &reg32);
pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, reg32);
/* Enable Root Port's interrupt in response to error messages */
pci_read_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, &reg32);
reg32 |= TXGBE_ROOT_PORT_INTR_ON_MESG_MASK;
pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, reg32);
}
if (status == PCI_ERS_RESULT_CAN_RECOVER) {
status = PCI_ERS_RESULT_RECOVERED;
pci_dbg(dev, "broadcast mmio_enabled message\n");
pci_walk_bus(bus, txgbe_report_mmio_enabled, &status);
}
if (status == PCI_ERS_RESULT_NEED_RESET) {
/*
* TODO: Should call platform-specific
* functions to reset slot before calling
* drivers' slot_reset callbacks?
*/
status = PCI_ERS_RESULT_RECOVERED;
pci_dbg(dev, "broadcast slot_reset message\n");
pci_walk_bus(bus, txgbe_report_slot_reset, &status);
}
if (status != PCI_ERS_RESULT_RECOVERED)
goto failed;
pci_dbg(dev, "broadcast resume message\n");
pci_walk_bus(bus, txgbe_report_resume, &status);
failed:
;
}
void txgbe_aer_print_error(struct txgbe_adapter *adapter, u32 severity, u32 status)
{
unsigned long i;
const char *errmsg = NULL;
struct pci_dev *pdev = adapter->pdev;
unsigned long val = status;
for_each_set_bit(i, &val, 32) {
if (severity == TXGBE_AER_CORRECTABLE) {
errmsg = i < ARRAY_SIZE(aer_correctable_error_string) ?
aer_correctable_error_string[i] : NULL;
} else {
errmsg = i < ARRAY_SIZE(aer_uncorrectable_error_string) ?
aer_uncorrectable_error_string[i] : NULL;
if (errmsg != NULL && i == 14)
adapter->cmplt_to_dis = true;
}
if (errmsg)
dev_info(&pdev->dev, " [%2ld] %-22s\n", i, errmsg);
}
}
bool txgbe_check_recovery_capability(struct pci_dev *dev)
{
#if defined(__i386__) || defined(__x86_64__)
return true;
#else
/* check upstream bridge is root or PLX brigde,
* or cpu is kupeng 920 or not
*/
if (dev->bus->self->vendor == 0x10b5 ||
dev->bus->self->vendor == 0x19e5)
return true;
else
return false;
#endif
}

14
drivers/net/ethernet/wangxun/txgbe/txgbe_pcierr.h Normal file
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#ifndef _TXGBE_PCIERR_H_
#define _TXGBE_PCIERR_H_
#include "txgbe.h"
#define TXGBE_AER_UNCORRECTABLE 1
#define TXGBE_AER_CORRECTABLE 2
void txgbe_pcie_do_recovery(struct pci_dev *dev);
void txgbe_aer_print_error(struct txgbe_adapter *adapter, u32 severity, u32 status);
bool txgbe_check_recovery_capability(struct pci_dev *dev);
#endif

1242
drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c Normal file
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File diff suppressed because it is too large Load Diff

213
drivers/net/ethernet/wangxun/txgbe/txgbe_phy.h Normal file
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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_phy.h, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#ifndef _TXGBE_PHY_H_
#define _TXGBE_PHY_H_
#include "txgbe_type.h"
#define TXGBE_I2C_EEPROM_DEV_ADDR 0xA0
#define TXGBE_I2C_EEPROM_DEV_ADDR2 0xA2
#define TXGBE_I2C_EEPROM_BANK_LEN 0xFF
/*fiber to copper module inter reg i2c addr */
#define TXGBE_I2C_EEPROM_DEV_ADDR3 0xAC
#define TXGBE_I2C_PHY_LOCAL_RX_STATUS BIT(12)
#define TXGBE_I2C_PHY_REMOTE_RX_STATUS BIT(13)
#define TXGBE_I2C_10G_SFP_LINK_STATUS BIT(10)
/* EEPROM byte offsets */
#define TXGBE_SFF_IDENTIFIER 0x0
#define TXGBE_SFF_IDENTIFIER_SFP 0x3
#define TXGBE_SFF_VENDOR_OUI_BYTE0 0x25
#define TXGBE_SFF_VENDOR_OUI_BYTE1 0x26
#define TXGBE_SFF_VENDOR_OUI_BYTE2 0x27
#define TXGBE_SFF_1GBE_COMP_CODES 0x6
#define TXGBE_SFF_10GBE_COMP_CODES 0x3
#define TXGBE_SFF_CABLE_TECHNOLOGY 0x8
#define TXGBE_SFF_CABLE_SPEC_COMP 0x3C
#define TXGBE_SFF_DDM_IMPLEMENTED 0x40
#define TXGBE_SFF_SFF_8472_SWAP 0x5C
#define TXGBE_SFF_SFF_8472_COMP 0x5E
#define TXGBE_SFF_SFF_8472_OSCB 0x6E
#define TXGBE_SFF_SFF_8472_ESCB 0x76
#define TXGBE_SFF_IDENTIFIER_QSFP_PLUS 0xD
#define TXGBE_SFF_QSFP_VENDOR_OUI_BYTE0 0xA5
#define TXGBE_SFF_QSFP_VENDOR_OUI_BYTE1 0xA6
#define TXGBE_SFF_QSFP_VENDOR_OUI_BYTE2 0xA7
#define TXGBE_SFF_QSFP_CONNECTOR 0x82
#define TXGBE_SFF_QSFP_10GBE_COMP 0x83
#define TXGBE_SFF_QSFP_1GBE_COMP 0x86
#define TXGBE_SFF_QSFP_CABLE_LENGTH 0x92
#define TXGBE_SFF_QSFP_DEVICE_TECH 0x93
#define TXGBE_SFF_CABLE_VENDOR_NAME1 0x14
#define TXGBE_SFF_CABLE_VENDOR_NAME2 0x15
#define TXGBE_SFF_CABLE_VENDOR_NAME3 0x16
/* Bitmasks */
#define TXGBE_SFF_DA_PASSIVE_CABLE 0x4
#define TXGBE_SFF_DA_ACTIVE_CABLE 0x8
#define TXGBE_SFF_DA_SPEC_ACTIVE_LIMITING 0x4
#define TXGBE_SFF_1GBASESX_CAPABLE 0x1
#define TXGBE_SFF_1GBASELX_CAPABLE 0x2
#define TXGBE_SFF_1GBASET_CAPABLE 0x8
#define TXGBE_SFF_10GBASESR_CAPABLE 0x10
#define TXGBE_SFF_10GBASELR_CAPABLE 0x20
#define TXGBE_SFF_SOFT_RS_SELECT_MASK 0x8
#define TXGBE_SFF_SOFT_RS_SELECT_10G 0x8
#define TXGBE_SFF_SOFT_RS_SELECT_1G 0x0
#define TXGBE_SFF_ADDRESSING_MODE 0x4
#define TXGBE_SFF_QSFP_DA_ACTIVE_CABLE 0x1
#define TXGBE_SFF_QSFP_DA_PASSIVE_CABLE 0x8
#define TXGBE_SFF_QSFP_CONNECTOR_NOT_SEPARABLE 0x23
#define TXGBE_SFF_QSFP_TRANSMITER_850NM_VCSEL 0x0
#define TXGBE_I2C_EEPROM_READ_MASK 0x100
#define TXGBE_I2C_EEPROM_STATUS_MASK 0x3
#define TXGBE_I2C_EEPROM_STATUS_NO_OPERATION 0x0
#define TXGBE_I2C_EEPROM_STATUS_PASS 0x1
#define TXGBE_I2C_EEPROM_STATUS_FAIL 0x2
#define TXGBE_I2C_EEPROM_STATUS_IN_PROGRESS 0x3
#define TXGBE_CS4227 0xBE /* CS4227 address */
#define TXGBE_CS4227_GLOBAL_ID_LSB 0
#define TXGBE_CS4227_SCRATCH 2
#define TXGBE_CS4227_GLOBAL_ID_VALUE 0x03E5
#define TXGBE_CS4227_SCRATCH_VALUE 0x5aa5
#define TXGBE_CS4227_RETRIES 5
#define TXGBE_CS4227_LINE_SPARE22_MSB 0x12AD /* Reg to program speed */
#define TXGBE_CS4227_LINE_SPARE24_LSB 0x12B0 /* Reg to program EDC */
#define TXGBE_CS4227_HOST_SPARE22_MSB 0x1AAD /* Reg to program speed */
#define TXGBE_CS4227_HOST_SPARE24_LSB 0x1AB0 /* Reg to program EDC */
#define TXGBE_CS4227_EDC_MODE_CX1 0x0002
#define TXGBE_CS4227_EDC_MODE_SR 0x0004
#define TXGBE_CS4227_RESET_HOLD 500 /* microseconds */
#define TXGBE_CS4227_RESET_DELAY 500 /* milliseconds */
#define TXGBE_CS4227_CHECK_DELAY 30 /* milliseconds */
#define TXGBE_PE 0xE0 /* Port expander address */
#define TXGBE_PE_OUTPUT 1 /* Output register offset */
#define TXGBE_PE_CONFIG 3 /* Config register offset */
#define TXGBE_PE_BIT1 (1 << 1)
/* Flow control defines */
#define TXGBE_TAF_SYM_PAUSE (0x1)
#define TXGBE_TAF_ASM_PAUSE (0x2)
/* Bit-shift macros */
#define TXGBE_SFF_VENDOR_OUI_BYTE0_SHIFT 24
#define TXGBE_SFF_VENDOR_OUI_BYTE1_SHIFT 16
#define TXGBE_SFF_VENDOR_OUI_BYTE2_SHIFT 8
/* Vendor OUIs: format of OUI is 0x[byte0][byte1][byte2][00] */
#define TXGBE_SFF_VENDOR_OUI_TYCO 0x00407600
#define TXGBE_SFF_VENDOR_OUI_FTL 0x00906500
#define TXGBE_SFF_VENDOR_OUI_AVAGO 0x00176A00
#define TXGBE_SFF_VENDOR_OUI_INTEL 0x001B2100
/* I2C SDA and SCL timing parameters for standard mode */
#define TXGBE_I2C_T_HD_STA 4
#define TXGBE_I2C_T_LOW 5
#define TXGBE_I2C_T_HIGH 4
#define TXGBE_I2C_T_SU_STA 5
#define TXGBE_I2C_T_HD_DATA 5
#define TXGBE_I2C_T_SU_DATA 1
#define TXGBE_I2C_T_RISE 1
#define TXGBE_I2C_T_FALL 1
#define TXGBE_I2C_T_SU_STO 4
#define TXGBE_I2C_T_BUF 5
#ifndef TXGBE_SFP_DETECT_RETRIES
#define TXGBE_SFP_DETECT_RETRIES 10
#endif /* TXGBE_SFP_DETECT_RETRIES */
/* SFP+ SFF-8472 Compliance */
#define TXGBE_SFF_SFF_8472_UNSUP 0x00
enum txgbe_phy_type txgbe_get_phy_type_from_id(struct txgbe_hw *hw);
s32 txgbe_get_phy_id(struct txgbe_hw *hw);
s32 txgbe_reset_phy(struct txgbe_hw *hw);
s32 txgbe_read_phy_reg_mdi(struct txgbe_hw *hw, u32 reg_addr, u32 device_type,
u16 *phy_data);
s32 txgbe_write_phy_reg_mdi(struct txgbe_hw *hw, u32 reg_addr, u32 device_type,
u16 phy_data);
s32 txgbe_read_phy_reg(struct txgbe_hw *hw, u32 reg_addr,
u32 device_type, u16 *phy_data);
s32 txgbe_write_phy_reg(struct txgbe_hw *hw, u32 reg_addr,
u32 device_type, u16 phy_data);
u32 txgbe_setup_phy_link(struct txgbe_hw *hw, u32 speed_set, bool autoneg_wait_to_complete);
u32 txgbe_setup_phy_link_speed(struct txgbe_hw *hw,
u32 speed,
bool autoneg_wait_to_complete);
s32 txgbe_get_copper_link_capabilities(struct txgbe_hw *hw,
u32 *speed,
bool *autoneg);
s32 txgbe_check_reset_blocked(struct txgbe_hw *hw);
s32 txgbe_get_phy_firmware_version(struct txgbe_hw *hw,
u16 *firmware_version);
s32 txgbe_identify_module(struct txgbe_hw *hw);
s32 txgbe_identify_sfp_module(struct txgbe_hw *hw);
s32 txgbe_tn_check_overtemp(struct txgbe_hw *hw);
s32 txgbe_init_i2c(struct txgbe_hw *hw);
s32 txgbe_clear_i2c(struct txgbe_hw *hw);
s32 txgbe_switch_i2c_slave_addr(struct txgbe_hw *hw, u8 dev_addr);
s32 txgbe_read_i2c_byte(struct txgbe_hw *hw, u8 byte_offset,
u8 dev_addr, u8 *data);
s32 txgbe_read_i2c_word(struct txgbe_hw *hw, u16 byte_offset,
u8 dev_addr, u16 *data);
s32 txgbe_write_i2c_byte(struct txgbe_hw *hw, u8 byte_offset,
u8 dev_addr, u8 data);
s32 txgbe_read_i2c_eeprom(struct txgbe_hw *hw, u8 byte_offset,
u8 *eeprom_data);
s32 txgbe_write_i2c_eeprom(struct txgbe_hw *hw, u8 byte_offset,
u8 eeprom_data);
s32 txgbe_read_i2c_sff8472(struct txgbe_hw *hw, u8 byte_offset,
u8 *sff8472_data);
s32 txgbe_read_i2c_sfp_phy(struct txgbe_hw *hw, u16 byte_offset,
u16 *data);
s32 txgbe_init_external_phy(struct txgbe_hw *hw);
s32 txgbe_uninit_external_phy(struct txgbe_hw *hw);
s32 txgbe_set_phy_pause_advertisement(struct txgbe_hw *hw, u32 pause_bit);
s32 txgbe_get_phy_advertised_pause(struct txgbe_hw *hw, u8 *pause_bit);
s32 txgbe_get_lp_advertised_pause(struct txgbe_hw *hw, u8 *pause_bit);
MTD_STATUS txgbe_read_mdio(
MTD_DEV * dev,
MTD_U16 port,
MTD_U16 mmd,
MTD_U16 reg,
MTD_U16 *value);
MTD_STATUS txgbe_write_mdio(
MTD_DEV * dev,
MTD_U16 port,
MTD_U16 mmd,
MTD_U16 reg,
MTD_U16 value);
#endif /* _TXGBE_PHY_H_ */

929
drivers/net/ethernet/wangxun/txgbe/txgbe_procfs.c Normal file
View File

@ -0,0 +1,929 @@
/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_procfs.h, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#include "txgbe.h"
#include "txgbe_hw.h"
#include "txgbe_type.h"
#ifdef TXGBE_PROCFS
#ifndef TXGBE_SYSFS
#include <linux/module.h>
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/device.h>
#include <linux/netdevice.h>
static struct proc_dir_entry *txgbe_top_dir;
static struct net_device_stats *procfs_get_stats(struct net_device *netdev)
{
#ifndef HAVE_NETDEV_STATS_IN_NETDEV
struct txgbe_adapter *adapter;
#endif
if (netdev == NULL)
return NULL;
#ifdef HAVE_NETDEV_STATS_IN_NETDEV
/* only return the current stats */
return &netdev->stats;
#else
adapter = netdev_priv(netdev);
/* only return the current stats */
return &adapter->net_stats;
#endif /* HAVE_NETDEV_STATS_IN_NETDEV */
}
static int txgbe_fwbanner(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
return snprintf(page, count, "%s\n", adapter->eeprom_id);
}
static int txgbe_porttype(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
return snprintf(page, count, "%d\n",
test_bit(__TXGBE_DOWN, &adapter->state));
}
static int txgbe_portspeed(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
int speed = 0;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
switch (adapter->link_speed) {
case TXGBE_LINK_SPEED_100_FULL:
speed = 1;
break;
case TXGBE_LINK_SPEED_1GB_FULL:
speed = 10;
break;
case TXGBE_LINK_SPEED_10GB_FULL:
speed = 100;
break;
default:
break;
}
return snprintf(page, count, "%d\n", speed);
}
static int txgbe_wqlflag(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
return snprintf(page, count, "%d\n", adapter->wol);
}
static int txgbe_xflowctl(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct txgbe_hw *hw;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
return snprintf(page, count, "%d\n", hw->fc.current_mode);
}
static int txgbe_rxdrops(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device_stats *net_stats;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
net_stats = procfs_get_stats(adapter->netdev);
if (net_stats == NULL)
return snprintf(page, count, "error: no net stats\n");
return snprintf(page, count, "%lu\n",
net_stats->rx_dropped);
}
static int txgbe_rxerrors(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device_stats *net_stats;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
net_stats = procfs_get_stats(adapter->netdev);
if (net_stats == NULL)
return snprintf(page, count, "error: no net stats\n");
return snprintf(page, count, "%lu\n", net_stats->rx_errors);
}
static int txgbe_rxupacks(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_hw *hw;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
return snprintf(page, count, "%d\n", rd32(hw, TXGBE_TPR));
}
static int txgbe_rxmpacks(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_hw *hw;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
int i, mprc = 0;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
for (i = 0; i < 128; i++)
mprc += rd32(hw, TXGBE_PX_MPRC(i));
return snprintf(page, count, "%d\n", mprc);
}
static int txgbe_rxbpacks(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_hw *hw;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
return snprintf(page, count, "%d\n",
rd32(hw, TXGBE_RX_BC_FRAMES_GOOD_LOW));
}
static int txgbe_txupacks(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_hw *hw;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
return snprintf(page, count, "%d\n",
rd32(hw, TXGBE_TX_FRAME_CNT_GOOD_BAD_LOW));
}
static int txgbe_txmpacks(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_hw *hw;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
return snprintf(page, count, "%d\n",
rd32(hw, TXGBE_TX_MC_FRAMES_GOOD_LOW));
}
static int txgbe_txbpacks(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_hw *hw;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
return snprintf(page, count, "%d\n",
rd32(hw, TXGBE_TX_BC_FRAMES_GOOD_LOW));
}
static int txgbe_txerrors(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device_stats *net_stats;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
net_stats = procfs_get_stats(adapter->netdev);
if (net_stats == NULL)
return snprintf(page, count, "error: no net stats\n");
return snprintf(page, count, "%lu\n",
net_stats->tx_errors);
}
static int txgbe_txdrops(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device_stats *net_stats;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
net_stats = procfs_get_stats(adapter->netdev);
if (net_stats == NULL)
return snprintf(page, count, "error: no net stats\n");
return snprintf(page, count, "%lu\n",
net_stats->tx_dropped);
}
static int txgbe_rxframes(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device_stats *net_stats;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
net_stats = procfs_get_stats(adapter->netdev);
if (net_stats == NULL)
return snprintf(page, count, "error: no net stats\n");
return snprintf(page, count, "%lu\n",
net_stats->rx_packets);
}
static int txgbe_rxbytes(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device_stats *net_stats;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
net_stats = procfs_get_stats(adapter->netdev);
if (net_stats == NULL)
return snprintf(page, count, "error: no net stats\n");
return snprintf(page, count, "%lu\n",
net_stats->rx_bytes);
}
static int txgbe_txframes(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device_stats *net_stats;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
net_stats = procfs_get_stats(adapter->netdev);
if (net_stats == NULL)
return snprintf(page, count, "error: no net stats\n");
return snprintf(page, count, "%lu\n",
net_stats->tx_packets);
}
static int txgbe_txbytes(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device_stats *net_stats;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
net_stats = procfs_get_stats(adapter->netdev);
if (net_stats == NULL)
return snprintf(page, count, "error: no net stats\n");
return snprintf(page, count, "%lu\n",
net_stats->tx_bytes);
}
static int txgbe_linkstat(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_hw *hw;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
int bitmask = 0;
u32 link_speed;
bool link_up = false;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
if (!test_bit(__TXGBE_DOWN, &adapter->state))
bitmask |= 1;
if (TCALL(hw, mac.ops.check_link, &link_speed, &link_up, false)
/* always assume link is up, if no check link function */
link_up = true;
if (link_up)
bitmask |= 2;
if (adapter->old_lsc != adapter->lsc_int) {
bitmask |= 4;
adapter->old_lsc = adapter->lsc_int;
}
return snprintf(page, count, "0x%X\n", bitmask);
}
static int txgbe_funcid(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct txgbe_hw *hw;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
return snprintf(page, count, "0x%X\n", hw->bus.func);
}
static int txgbe_funcvers(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void __always_unused *data)
{
return snprintf(page, count, "%s\n", txgbe_driver_version);
}
static int txgbe_macburn(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_hw *hw;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
return snprintf(page, count, "0x%02X%02X%02X%02X%02X%02X\n",
(unsigned int)hw->mac.perm_addr[0],
(unsigned int)hw->mac.perm_addr[1],
(unsigned int)hw->mac.perm_addr[2],
(unsigned int)hw->mac.perm_addr[3],
(unsigned int)hw->mac.perm_addr[4],
(unsigned int)hw->mac.perm_addr[5]);
}
static int txgbe_macadmn(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_hw *hw;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
return snprintf(page, count, "0x%02X%02X%02X%02X%02X%02X\n",
(unsigned int)hw->mac.addr[0],
(unsigned int)hw->mac.addr[1],
(unsigned int)hw->mac.addr[2],
(unsigned int)hw->mac.addr[3],
(unsigned int)hw->mac.addr[4],
(unsigned int)hw->mac.addr[5]);
}
static int txgbe_maclla1(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct txgbe_hw *hw;
int rc;
u16 eeprom_buff[6];
u16 first_word = 0x37;
const u16 word_count = ARRAY_SIZE(eeprom_buff);
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
hw = &adapter->hw;
if (hw == NULL)
return snprintf(page, count, "error: no hw data\n");
rc = TCALL(hw, eeprom.ops.read_buffer, first_word, 1, &first_word);
if (rc != 0)
return snprintf(page, count,
"error: reading pointer to the EEPROM\n");
if (first_word != 0x0000 && first_word != 0xFFFF) {
rc = TCALL(hw, eeprom.ops.read_buffer, first_word, word_count,
eeprom_buff);
if (rc != 0)
return snprintf(page, count, "error: reading buffer\n");
} else {
memset(eeprom_buff, 0, sizeof(eeprom_buff));
}
switch (hw->bus.func) {
case 0:
return snprintf(page, count, "0x%04X%04X%04X\n",
eeprom_buff[0],
eeprom_buff[1],
eeprom_buff[2]);
case 1:
return snprintf(page, count, "0x%04X%04X%04X\n",
eeprom_buff[3],
eeprom_buff[4],
eeprom_buff[5]);
}
return snprintf(page, count, "unexpected port %d\n", hw->bus.func);
}
static int txgbe_mtusize(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device *netdev;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
netdev = adapter->netdev;
if (netdev == NULL)
return snprintf(page, count, "error: no net device\n");
return snprintf(page, count, "%d\n", netdev->mtu);
}
static int txgbe_featflag(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
int bitmask = 0;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device *netdev;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
netdev = adapter->netdev;
if (netdev == NULL)
return snprintf(page, count, "error: no net device\n");
if (adapter->netdev->features & NETIF_F_RXCSUM)
bitmask |= 1;
return snprintf(page, count, "%d\n", bitmask);
}
static int txgbe_lsominct(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void __always_unused *data)
{
return snprintf(page, count, "%d\n", 1);
}
static int txgbe_prommode(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
struct net_device *netdev;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
netdev = adapter->netdev;
if (netdev == NULL)
return snprintf(page, count, "error: no net device\n");
return snprintf(page, count, "%d\n",
netdev->flags & IFF_PROMISC);
}
static int txgbe_txdscqsz(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
return snprintf(page, count, "%d\n", adapter->tx_ring[0]->count);
}
static int txgbe_rxdscqsz(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
return snprintf(page, count, "%d\n", adapter->rx_ring[0]->count);
}
static int txgbe_rxqavg(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
int index;
int diff = 0;
u16 ntc;
u16 ntu;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
for (index = 0; index < adapter->num_rx_queues; index++) {
ntc = adapter->rx_ring[index]->next_to_clean;
ntu = adapter->rx_ring[index]->next_to_use;
if (ntc >= ntu)
diff += (ntc - ntu);
else
diff += (adapter->rx_ring[index]->count - ntu + ntc);
}
if (adapter->num_rx_queues <= 0)
return snprintf(page, count,
"can't calculate, number of queues %d\n",
adapter->num_rx_queues);
return snprintf(page, count, "%d\n", diff/adapter->num_rx_queues);
}
static int txgbe_txqavg(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
int index;
int diff = 0;
u16 ntc;
u16 ntu;
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
for (index = 0; index < adapter->num_tx_queues; index++) {
ntc = adapter->tx_ring[index]->next_to_clean;
ntu = adapter->tx_ring[index]->next_to_use;
if (ntc >= ntu)
diff += (ntc - ntu);
else
diff += (adapter->tx_ring[index]->count - ntu + ntc);
}
if (adapter->num_tx_queues <= 0)
return snprintf(page, count,
"can't calculate, number of queues %d\n",
adapter->num_tx_queues);
return snprintf(page, count, "%d\n",
diff/adapter->num_tx_queues);
}
static int txgbe_iovotype(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void __always_unused *data)
{
return snprintf(page, count, "2\n");
}
static int txgbe_funcnbr(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
return snprintf(page, count, "%d\n", adapter->num_vfs);
}
static int txgbe_pciebnbr(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_adapter *adapter = (struct txgbe_adapter *)data;
if (adapter == NULL)
return snprintf(page, count, "error: no adapter\n");
return snprintf(page, count, "%d\n", adapter->pdev->bus->number);
}
static int txgbe_therm_dealarmthresh(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_therm_proc_data *therm_data =
(struct txgbe_therm_proc_data *)data;
if (therm_data == NULL)
return snprintf(page, count, "error: no therm_data\n");
return snprintf(page, count, "%d\n",
therm_data->sensor_data->dalarm_thresh);
}
static int txgbe_therm_alarmthresh(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
struct txgbe_therm_proc_data *therm_data =
(struct txgbe_therm_proc_data *)data;
if (therm_data == NULL)
return snprintf(page, count, "error: no therm_data\n");
return snprintf(page, count, "%d\n",
therm_data->sensor_data->alarm_thresh);
}
static int txgbe_therm_temp(char *page, char __always_unused **start,
off_t __always_unused off, int count,
int __always_unused *eof, void *data)
{
s32 status;
struct txgbe_therm_proc_data *therm_data =
(struct txgbe_therm_proc_data *)data;
if (therm_data == NULL)
return snprintf(page, count, "error: no therm_data\n");
status = txgbe_get_thermal_sensor_data(therm_data->hw);
if (status != 0)
snprintf(page, count, "error: status %d returned\n", status);
return snprintf(page, count, "%d\n", therm_data->sensor_data->temp);
}
struct txgbe_proc_type {
char name[32];
int (*read)(char*, char**, off_t, int, int*, void*);
};
struct txgbe_proc_type txgbe_proc_entries[] = {
{"fwbanner", &txgbe_fwbanner},
{"porttype", &txgbe_porttype},
{"portspeed", &txgbe_portspeed},
{"wqlflag", &txgbe_wqlflag},
{"xflowctl", &txgbe_xflowctl},
{"rxdrops", &txgbe_rxdrops},
{"rxerrors", &txgbe_rxerrors},
{"rxupacks", &txgbe_rxupacks},
{"rxmpacks", &txgbe_rxmpacks},
{"rxbpacks", &txgbe_rxbpacks},
{"txdrops", &txgbe_txdrops},
{"txerrors", &txgbe_txerrors},
{"txupacks", &txgbe_txupacks},
{"txmpacks", &txgbe_txmpacks},
{"txbpacks", &txgbe_txbpacks},
{"rxframes", &txgbe_rxframes},
{"rxbytes", &txgbe_rxbytes},
{"txframes", &txgbe_txframes},
{"txbytes", &txgbe_txbytes},
{"linkstat", &txgbe_linkstat},
{"funcid", &txgbe_funcid},
{"funcvers", &txgbe_funcvers},
{"macburn", &txgbe_macburn},
{"macadmn", &txgbe_macadmn},
{"maclla1", &txgbe_maclla1},
{"mtusize", &txgbe_mtusize},
{"featflag", &txgbe_featflag},
{"lsominct", &txgbe_lsominct},
{"prommode", &txgbe_prommode},
{"txdscqsz", &txgbe_txdscqsz},
{"rxdscqsz", &txgbe_rxdscqsz},
{"txqavg", &txgbe_txqavg},
{"rxqavg", &txgbe_rxqavg},
{"iovotype", &txgbe_iovotype},
{"funcnbr", &txgbe_funcnbr},
{"pciebnbr", &txgbe_pciebnbr},
{"", NULL}
};
struct txgbe_proc_type txgbe_internal_entries[] = {
{"temp", &txgbe_therm_temp},
{"alarmthresh", &txgbe_therm_alarmthresh},
{"dealarmthresh", &txgbe_therm_dealarmthresh},
{"", NULL}
};
void txgbe_del_proc_entries(struct txgbe_adapter *adapter)
{
int index;
int i;
char buf[16]; /* much larger than the sensor number will ever be */
if (txgbe_top_dir == NULL)
return;
for (i = 0; i < TXGBE_MAX_SENSORS; i++) {
if (adapter->therm_dir[i] == NULL)
continue;
for (index = 0; ; index++) {
if (txgbe_internal_entries[index].read == NULL)
break;
remove_proc_entry(txgbe_internal_entries[index].name,
adapter->therm_dir[i]);
}
snprintf(buf, sizeof(buf), "sensor_%d", i);
remove_proc_entry(buf, adapter->info_dir);
}
if (adapter->info_dir != NULL) {
for (index = 0; ; index++) {
if (txgbe_proc_entries[index].read == NULL)
break;
remove_proc_entry(txgbe_proc_entries[index].name,
adapter->info_dir);
}
remove_proc_entry("info", adapter->eth_dir);
}
if (adapter->eth_dir != NULL)
remove_proc_entry(pci_name(adapter->pdev), txgbe_top_dir);
}
/* called from txgbe_main.c */
void txgbe_procfs_exit(struct txgbe_adapter *adapter)
{
txgbe_del_proc_entries(adapter);
}
int txgbe_procfs_topdir_init(void)
{
txgbe_top_dir = proc_mkdir("driver/txgbe", NULL);
if (txgbe_top_dir == NULL)
return -ENOMEM;
return 0;
}
void txgbe_procfs_topdir_exit(void)
{
remove_proc_entry("driver/txgbe", NULL);
}
/* called from txgbe_main.c */
int txgbe_procfs_init(struct txgbe_adapter *adapter)
{
int rc = 0;
int index;
int i;
char buf[16]; /* much larger than the sensor number will ever be */
adapter->eth_dir = NULL;
adapter->info_dir = NULL;
adapter->therm_dir = NULL;
if (txgbe_top_dir == NULL) {
rc = -ENOMEM;
goto fail;
}
adapter->eth_dir = proc_mkdir(pci_name(adapter->pdev), txgbe_top_dir);
if (adapter->eth_dir == NULL) {
rc = -ENOMEM;
goto fail;
}
adapter->info_dir = proc_mkdir("info", adapter->eth_dir);
if (adapter->info_dir == NULL) {
rc = -ENOMEM;
goto fail;
}
for (index = 0; ; index++) {
if (txgbe_proc_entries[index].read == NULL)
break;
if (!(create_proc_read_entry(txgbe_proc_entries[index].name,
0444,
adapter->info_dir,
txgbe_proc_entries[index].read,
adapter))) {
rc = -ENOMEM;
goto fail;
}
}
if (!TCALL(&(adapter->hw), ops.init_thermal_sensor_thresh))
goto exit;
snprintf(buf, sizeof(buf), "sensor");
adapter->therm_dir = proc_mkdir(buf, adapter->info_dir);
if (adapter->therm_dir == NULL) {
rc = -ENOMEM;
goto fail;
}
for (index = 0; ; index++) {
if (txgbe_internal_entries[index].read == NULL)
break;
/*
* therm_data struct contains pointer the read func
* will be needing
*/
adapter->therm_data.hw = &adapter->hw;
adapter->therm_data.sensor_data =
&adapter->hw.mac.thermal_sensor_data.sensor;
if (!(create_proc_read_entry(
txgbe_internal_entries[index].name,
0444,
adapter->therm_dir,
txgbe_internal_entries[index].read,
&adapter->therm_data))) {
rc = -ENOMEM;
goto fail;
}
}
goto exit;
fail:
txgbe_del_proc_entries(adapter);
exit:
return rc;
}
#endif /* !TXGBE_SYSFS */
#endif /* TXGBE_PROCFS */

917
drivers/net/ethernet/wangxun/txgbe/txgbe_ptp.c Normal file
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@ -0,0 +1,917 @@
/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_ptp.c, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#include "txgbe.h"
#include <linux/ptp_classify.h>
/*
* SYSTIME is defined by a fixed point system which allows the user to
* define the scale counter increment value at every level change of
* the oscillator driving SYSTIME value. The time unit is determined by
* the clock frequency of the oscillator and TIMINCA register.
* The cyclecounter and timecounter structures are used to to convert
* the scale counter into nanoseconds. SYSTIME registers need to be converted
* to ns values by use of only a right shift.
* The following math determines the largest incvalue that will fit into
* the available bits in the TIMINCA register:
* Period * [ 2 ^ ( MaxWidth - PeriodWidth ) ]
* PeriodWidth: Number of bits to store the clock period
* MaxWidth: The maximum width value of the TIMINCA register
* Period: The clock period for the oscillator, which changes based on the link
* speed:
* At 10Gb link or no link, the period is 6.4 ns.
* At 1Gb link, the period is multiplied by 10. (64ns)
* At 100Mb link, the period is multiplied by 100. (640ns)
* round(): discard the fractional portion of the calculation
*
* The calculated value allows us to right shift the SYSTIME register
* value in order to quickly convert it into a nanosecond clock,
* while allowing for the maximum possible adjustment value.
*
* LinkSpeed ClockFreq ClockPeriod TIMINCA:IV
* 10000Mbps 156.25MHz 6.4*10^-9 0xCCCCCC(0xFFFFF/ns)
* 1000 Mbps 62.5 MHz 16 *10^-9 0x800000(0x7FFFF/ns)
* 100 Mbps 6.25 MHz 160*10^-9 0xA00000(0xFFFF/ns)
* 10 Mbps 0.625 MHz 1600*10^-9 0xC7F380(0xFFF/ns)
* FPGA 31.25 MHz 32 *10^-9 0x800000(0x3FFFF/ns)
*
* These diagrams are only for the 10Gb link period
*
* +--------------+ +--------------+
* | 32 | | 8 | 3 | 20 |
* *--------------+ +--------------+
* \________ 43 bits ______/ fract
*
* The 43 bit SYSTIME overflows every
* 2^43 * 10^-9 / 3600 = 2.4 hours
*/
#define TXGBE_INCVAL_10GB 0xCCCCCC
#define TXGBE_INCVAL_1GB 0x800000
#define TXGBE_INCVAL_100 0xA00000
#define TXGBE_INCVAL_10 0xC7F380
#define TXGBE_INCVAL_FPGA 0x800000
#define TXGBE_INCVAL_SHIFT_10GB 20
#define TXGBE_INCVAL_SHIFT_1GB 18
#define TXGBE_INCVAL_SHIFT_100 15
#define TXGBE_INCVAL_SHIFT_10 12
#define TXGBE_INCVAL_SHIFT_FPGA 17
#define TXGBE_OVERFLOW_PERIOD (HZ * 30)
#define TXGBE_PTP_TX_TIMEOUT (HZ)
/**
* txgbe_ptp_read - read raw cycle counter (to be used by time counter)
* @hw_cc: the cyclecounter structure
*
* this function reads the cyclecounter registers and is called by the
* cyclecounter structure used to construct a ns counter from the
* arbitrary fixed point registers
*/
static u64 txgbe_ptp_read(const struct cyclecounter *hw_cc)
{
struct txgbe_adapter *adapter =
container_of(hw_cc, struct txgbe_adapter, hw_cc);
struct txgbe_hw *hw = &adapter->hw;
u64 stamp = 0;
stamp |= (u64)rd32(hw, TXGBE_TSC_1588_SYSTIML);
stamp |= (u64)rd32(hw, TXGBE_TSC_1588_SYSTIMH) << 32;
return stamp;
}
/**
* txgbe_ptp_convert_to_hwtstamp - convert register value to hw timestamp
* @adapter: private adapter structure
* @hwtstamp: stack timestamp structure
* @systim: unsigned 64bit system time value
*
* We need to convert the adapter's RX/TXSTMP registers into a hwtstamp value
* which can be used by the stack's ptp functions.
*
* The lock is used to protect consistency of the cyclecounter and the SYSTIME
* registers. However, it does not need to protect against the Rx or Tx
* timestamp registers, as there can't be a new timestamp until the old one is
* unlatched by reading.
*
* In addition to the timestamp in hardware, some controllers need a software
* overflow cyclecounter, and this function takes this into account as well.
**/
static void txgbe_ptp_convert_to_hwtstamp(struct txgbe_adapter *adapter,
struct skb_shared_hwtstamps *hwtstamp,
u64 timestamp)
{
unsigned long flags;
u64 ns;
memset(hwtstamp, 0, sizeof(*hwtstamp));
spin_lock_irqsave(&adapter->tmreg_lock, flags);
ns = timecounter_cyc2time(&adapter->hw_tc, timestamp);
spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
hwtstamp->hwtstamp = ns_to_ktime(ns);
}
/**
* txgbe_ptp_adjfreq
* @ptp: the ptp clock structure
* @ppb: parts per billion adjustment from base
*
* adjust the frequency of the ptp cycle counter by the
* indicated ppb from the base frequency.
*/
#ifndef HAVE_NOT_PTT_ADJFREQ
static int txgbe_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
{
struct txgbe_adapter *adapter =
container_of(ptp, struct txgbe_adapter, ptp_caps);
struct txgbe_hw *hw = &adapter->hw;
u64 freq, incval;
u32 diff;
int neg_adj = 0;
if (ppb < 0) {
neg_adj = 1;
ppb = -ppb;
}
smp_mb();
incval = READ_ONCE(adapter->base_incval);
freq = incval;
freq *= ppb;
diff = div_u64(freq, 1000000000ULL);
incval = neg_adj ? (incval - diff) : (incval + diff);
if (incval > TXGBE_TSC_1588_INC_IV(~0))
e_dev_warn("PTP ppb adjusted SYSTIME rate overflowed!\n");
wr32(hw, TXGBE_TSC_1588_INC,
TXGBE_TSC_1588_INC_IVP(incval, 2));
return 0;
}
#endif
/**
* txgbe_ptp_adjtime
* @ptp: the ptp clock structure
* @delta: offset to adjust the cycle counter by ns
*
* adjust the timer by resetting the timecounter structure.
*/
static int txgbe_ptp_adjtime(struct ptp_clock_info *ptp,
s64 delta)
{
struct txgbe_adapter *adapter =
container_of(ptp, struct txgbe_adapter, ptp_caps);
unsigned long flags;
spin_lock_irqsave(&adapter->tmreg_lock, flags);
timecounter_adjtime(&adapter->hw_tc, delta);
spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
return 0;
}
/**
* txgbe_ptp_gettime64
* @ptp: the ptp clock structure
* @ts: timespec64 structure to hold the current time value
*
* read the timecounter and return the correct value on ns,
* after converting it into a struct timespec64.
*/
static int txgbe_ptp_gettime64(struct ptp_clock_info *ptp,
struct timespec64 *ts)
{
struct txgbe_adapter *adapter =
container_of(ptp, struct txgbe_adapter, ptp_caps);
unsigned long flags;
u64 ns;
spin_lock_irqsave(&adapter->tmreg_lock, flags);
ns = timecounter_read(&adapter->hw_tc);
spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
*ts = ns_to_timespec64(ns);
return 0;
}
/**
* txgbe_ptp_settime64
* @ptp: the ptp clock structure
* @ts: the timespec64 containing the new time for the cycle counter
*
* reset the timecounter to use a new base value instead of the kernel
* wall timer value.
*/
static int txgbe_ptp_settime64(struct ptp_clock_info *ptp,
const struct timespec64 *ts)
{
struct txgbe_adapter *adapter =
container_of(ptp, struct txgbe_adapter, ptp_caps);
u64 ns;
unsigned long flags;
ns = timespec64_to_ns(ts);
/* reset the timecounter */
spin_lock_irqsave(&adapter->tmreg_lock, flags);
timecounter_init(&adapter->hw_tc, &adapter->hw_cc, ns);
spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
return 0;
}
#ifndef HAVE_PTP_CLOCK_INFO_GETTIME64
static int txgbe_ptp_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
{
struct timespec64 ts64;
int err;
err = txgbe_ptp_gettime64(ptp, &ts64);
if (err)
return err;
*ts = timespec64_to_timespec(ts64);
return 0;
}
static int txgbe_ptp_settime(struct ptp_clock_info *ptp,
const struct timespec *ts)
{
struct timespec64 ts64;
ts64 = timespec_to_timespec64(*ts);
return txgbe_ptp_settime64(ptp, &ts64);
}
#endif
/**
* txgbe_ptp_feature_enable
* @ptp: the ptp clock structure
* @rq: the requested feature to change
* @on: whether to enable or disable the feature
*
* enable (or disable) ancillary features of the phc subsystem.
* our driver only supports the PPS feature on the X540
*/
static int txgbe_ptp_feature_enable(struct ptp_clock_info *ptp,
struct ptp_clock_request *rq, int on)
{
return -ENOTSUPP;
}
/**
* txgbe_ptp_check_pps_event
* @adapter: the private adapter structure
* @eicr: the interrupt cause register value
*
* This function is called by the interrupt routine when checking for
* interrupts. It will check and handle a pps event.
*/
void txgbe_ptp_check_pps_event(struct txgbe_adapter *adapter)
{
struct ptp_clock_event event;
event.type = PTP_CLOCK_PPS;
/* this check is necessary in case the interrupt was enabled via some
* alternative means (ex. debug_fs). Better to check here than
* everywhere that calls this function.
*/
if (!adapter->ptp_clock)
return;
/* we don't config PPS on SDP yet, so just return.
* ptp_clock_event(adapter->ptp_clock, &event);
*/
}
/**
* txgbe_ptp_overflow_check - watchdog task to detect SYSTIME overflow
* @adapter: private adapter struct
*
* this watchdog task periodically reads the timecounter
* in order to prevent missing when the system time registers wrap
* around. This needs to be run approximately twice a minute for the fastest
* overflowing hardware. We run it for all hardware since it shouldn't have a
* large impact.
*/
void txgbe_ptp_overflow_check(struct txgbe_adapter *adapter)
{
bool timeout = time_is_before_jiffies(adapter->last_overflow_check +
TXGBE_OVERFLOW_PERIOD);
struct timespec64 ts;
if (timeout) {
txgbe_ptp_gettime64(&adapter->ptp_caps, &ts);
adapter->last_overflow_check = jiffies;
}
}
/**
* txgbe_ptp_rx_hang - detect error case when Rx timestamp registers latched
* @adapter: private network adapter structure
*
* this watchdog task is scheduled to detect error case where hardware has
* dropped an Rx packet that was timestamped when the ring is full. The
* particular error is rare but leaves the device in a state unable to timestamp
* any future packets.
*/
void txgbe_ptp_rx_hang(struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
struct txgbe_ring *rx_ring;
u32 tsyncrxctl = rd32(hw, TXGBE_PSR_1588_CTL);
unsigned long rx_event;
int n;
/* if we don't have a valid timestamp in the registers, just update the
* timeout counter and exit
*/
if (!(tsyncrxctl & TXGBE_PSR_1588_CTL_VALID)) {
adapter->last_rx_ptp_check = jiffies;
return;
}
/* determine the most recent watchdog or rx_timestamp event */
rx_event = adapter->last_rx_ptp_check;
for (n = 0; n < adapter->num_rx_queues; n++) {
rx_ring = adapter->rx_ring[n];
if (time_after(rx_ring->last_rx_timestamp, rx_event))
rx_event = rx_ring->last_rx_timestamp;
}
/* only need to read the high RXSTMP register to clear the lock */
if (time_is_before_jiffies(rx_event + 5*HZ)) {
rd32(hw, TXGBE_PSR_1588_STMPH);
adapter->last_rx_ptp_check = jiffies;
adapter->rx_hwtstamp_cleared++;
e_warn(drv, "clearing RX Timestamp hang");
}
}
/**
* txgbe_ptp_clear_tx_timestamp - utility function to clear Tx timestamp state
* @adapter: the private adapter structure
*
* This function should be called whenever the state related to a Tx timestamp
* needs to be cleared. This helps ensure that all related bits are reset for
* the next Tx timestamp event.
*/
static void txgbe_ptp_clear_tx_timestamp(struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
rd32(hw, TXGBE_TSC_1588_STMPH);
if (adapter->ptp_tx_skb) {
dev_kfree_skb_any(adapter->ptp_tx_skb);
adapter->ptp_tx_skb = NULL;
}
clear_bit_unlock(__TXGBE_PTP_TX_IN_PROGRESS, &adapter->state);
}
/**
* txgbe_ptp_tx_hwtstamp - utility function which checks for TX time stamp
* @adapter: the private adapter struct
*
* if the timestamp is valid, we convert it into the timecounter ns
* value, then store that result into the shhwtstamps structure which
* is passed up the network stack
*/
static void txgbe_ptp_tx_hwtstamp(struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
struct skb_shared_hwtstamps shhwtstamps;
u64 regval = 0;
regval |= (u64)rd32(hw, TXGBE_TSC_1588_STMPL);
regval |= (u64)rd32(hw, TXGBE_TSC_1588_STMPH) << 32;
txgbe_ptp_convert_to_hwtstamp(adapter, &shhwtstamps, regval);
skb_tstamp_tx(adapter->ptp_tx_skb, &shhwtstamps);
txgbe_ptp_clear_tx_timestamp(adapter);
}
/**
* txgbe_ptp_tx_hwtstamp_work
* @work: pointer to the work struct
*
* This work item polls TSYNCTXCTL valid bit to determine when a Tx hardware
* timestamp has been taken for the current skb. It is necesary, because the
* descriptor's "done" bit does not correlate with the timestamp event.
*/
static void txgbe_ptp_tx_hwtstamp_work(struct work_struct *work)
{
struct txgbe_adapter *adapter = container_of(work, struct txgbe_adapter,
ptp_tx_work);
struct txgbe_hw *hw = &adapter->hw;
bool timeout = time_is_before_jiffies(adapter->ptp_tx_start +
TXGBE_PTP_TX_TIMEOUT);
u32 tsynctxctl;
/* we have to have a valid skb to poll for a timestamp */
if (!adapter->ptp_tx_skb) {
txgbe_ptp_clear_tx_timestamp(adapter);
return;
}
/* stop polling once we have a valid timestamp */
tsynctxctl = rd32(hw, TXGBE_TSC_1588_CTL);
if (tsynctxctl & TXGBE_TSC_1588_CTL_VALID) {
txgbe_ptp_tx_hwtstamp(adapter);
return;
}
/* check timeout last in case timestamp event just occurred */
if (timeout) {
txgbe_ptp_clear_tx_timestamp(adapter);
adapter->tx_hwtstamp_timeouts++;
e_warn(drv, "clearing Tx Timestamp hang");
} else {
/* reschedule to keep checking until we timeout */
schedule_work(&adapter->ptp_tx_work);
}
}
/**
* txgbe_ptp_rx_rgtstamp - utility function which checks for RX time stamp
* @q_vector: structure containing interrupt and ring information
* @skb: particular skb to send timestamp with
*
* if the timestamp is valid, we convert it into the timecounter ns
* value, then store that result into the shhwtstamps structure which
* is passed up the network stack
*/
void txgbe_ptp_rx_hwtstamp(struct txgbe_adapter *adapter, struct sk_buff *skb)
{
struct txgbe_hw *hw = &adapter->hw;
u64 regval = 0;
u32 tsyncrxctl;
/*
* Read the tsyncrxctl register afterwards in order to prevent taking an
* I/O hit on every packet.
*/
tsyncrxctl = rd32(hw, TXGBE_PSR_1588_CTL);
if (!(tsyncrxctl & TXGBE_PSR_1588_CTL_VALID))
return;
regval |= (u64)rd32(hw, TXGBE_PSR_1588_STMPL);
regval |= (u64)rd32(hw, TXGBE_PSR_1588_STMPH) << 32;
txgbe_ptp_convert_to_hwtstamp(adapter, skb_hwtstamps(skb), regval);
}
/**
* txgbe_ptp_get_ts_config - get current hardware timestamping configuration
* @adapter: pointer to adapter structure
* @ifreq: ioctl data
*
* This function returns the current timestamping settings. Rather than
* attempt to deconstruct registers to fill in the values, simply keep a copy
* of the old settings around, and return a copy when requested.
*/
int txgbe_ptp_get_ts_config(struct txgbe_adapter *adapter, struct ifreq *ifr)
{
struct hwtstamp_config *config = &adapter->tstamp_config;
return copy_to_user(ifr->ifr_data, config,
sizeof(*config)) ? -EFAULT : 0;
}
/**
* txgbe_ptp_set_timestamp_mode - setup the hardware for the requested mode
* @adapter: the private txgbe adapter structure
* @config: the hwtstamp configuration requested
*
* Outgoing time stamping can be enabled and disabled. Play nice and
* disable it when requested, although it shouldn't cause any overhead
* when no packet needs it. At most one packet in the queue may be
* marked for time stamping, otherwise it would be impossible to tell
* for sure to which packet the hardware time stamp belongs.
*
* Incoming time stamping has to be configured via the hardware
* filters. Not all combinations are supported, in particular event
* type has to be specified. Matching the kind of event packet is
* not supported, with the exception of "all V2 events regardless of
* level 2 or 4".
*
* Since hardware always timestamps Path delay packets when timestamping V2
* packets, regardless of the type specified in the register, only use V2
* Event mode. This more accurately tells the user what the hardware is going
* to do anyways.
*
* Note: this may modify the hwtstamp configuration towards a more general
* mode, if required to support the specifically requested mode.
*/
static int txgbe_ptp_set_timestamp_mode(struct txgbe_adapter *adapter,
struct hwtstamp_config *config)
{
struct txgbe_hw *hw = &adapter->hw;
u32 tsync_tx_ctl = TXGBE_TSC_1588_CTL_ENABLED;
u32 tsync_rx_ctl = TXGBE_PSR_1588_CTL_ENABLED;
u32 tsync_rx_mtrl = PTP_EV_PORT << 16;
bool is_l2 = false;
u32 regval;
/* reserved for future extensions */
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
tsync_tx_ctl = 0;
case HWTSTAMP_TX_ON:
break;
default:
return -ERANGE;
}
switch (config->rx_filter) {
case HWTSTAMP_FILTER_NONE:
tsync_rx_ctl = 0;
tsync_rx_mtrl = 0;
adapter->flags &= ~(TXGBE_FLAG_RX_HWTSTAMP_ENABLED |
TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
break;
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
tsync_rx_ctl |= TXGBE_PSR_1588_CTL_TYPE_L4_V1;
tsync_rx_mtrl |= TXGBE_PSR_1588_MSGTYPE_V1_SYNC_MSG;
adapter->flags |= (TXGBE_FLAG_RX_HWTSTAMP_ENABLED |
TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
break;
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
tsync_rx_ctl |= TXGBE_PSR_1588_CTL_TYPE_L4_V1;
tsync_rx_mtrl |= TXGBE_PSR_1588_MSGTYPE_V1_DELAY_REQ_MSG;
adapter->flags |= (TXGBE_FLAG_RX_HWTSTAMP_ENABLED |
TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
break;
case HWTSTAMP_FILTER_PTP_V2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
case HWTSTAMP_FILTER_PTP_V2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
tsync_rx_ctl |= TXGBE_PSR_1588_CTL_TYPE_EVENT_V2;
is_l2 = true;
config->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
adapter->flags |= (TXGBE_FLAG_RX_HWTSTAMP_ENABLED |
TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
break;
case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
case HWTSTAMP_FILTER_ALL:
default:
/* register RXMTRL must be set in order to do V1 packets,
* therefore it is not possible to time stamp both V1 Sync and
* Delay_Req messages unless hardware supports timestamping all
* packets => return error
*/
adapter->flags &= ~(TXGBE_FLAG_RX_HWTSTAMP_ENABLED |
TXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER);
config->rx_filter = HWTSTAMP_FILTER_NONE;
return -ERANGE;
}
/* define ethertype filter for timestamping L2 packets */
if (is_l2)
wr32(hw,
TXGBE_PSR_ETYPE_SWC(TXGBE_PSR_ETYPE_SWC_FILTER_1588),
(TXGBE_PSR_ETYPE_SWC_FILTER_EN | /* enable filter */
TXGBE_PSR_ETYPE_SWC_1588 | /* enable timestamping */
ETH_P_1588)); /* 1588 eth protocol type */
else
wr32(hw,
TXGBE_PSR_ETYPE_SWC(TXGBE_PSR_ETYPE_SWC_FILTER_1588),
0);
/* enable/disable TX */
regval = rd32(hw, TXGBE_TSC_1588_CTL);
regval &= ~TXGBE_TSC_1588_CTL_ENABLED;
regval |= tsync_tx_ctl;
wr32(hw, TXGBE_TSC_1588_CTL, regval);
/* enable/disable RX */
regval = rd32(hw, TXGBE_PSR_1588_CTL);
regval &= ~(TXGBE_PSR_1588_CTL_ENABLED | TXGBE_PSR_1588_CTL_TYPE_MASK);
regval |= tsync_rx_ctl;
wr32(hw, TXGBE_PSR_1588_CTL, regval);
/* define which PTP packets are time stamped */
wr32(hw, TXGBE_PSR_1588_MSGTYPE, tsync_rx_mtrl);
TXGBE_WRITE_FLUSH(hw);
/* clear TX/RX timestamp state, just to be sure */
txgbe_ptp_clear_tx_timestamp(adapter);
rd32(hw, TXGBE_PSR_1588_STMPH);
return 0;
}
/**
* txgbe_ptp_set_ts_config - user entry point for timestamp mode
* @adapter: pointer to adapter struct
* @ifreq: ioctl data
*
* Set hardware to requested mode. If unsupported, return an error with no
* changes. Otherwise, store the mode for future reference.
*/
int txgbe_ptp_set_ts_config(struct txgbe_adapter *adapter, struct ifreq *ifr)
{
struct hwtstamp_config config;
int err;
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
err = txgbe_ptp_set_timestamp_mode(adapter, &config);
if (err)
return err;
/* save these settings for future reference */
memcpy(&adapter->tstamp_config, &config,
sizeof(adapter->tstamp_config));
return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ?
-EFAULT : 0;
}
static void txgbe_ptp_link_speed_adjust(struct txgbe_adapter *adapter,
u32 *shift, u32 *incval)
{
/**
* Scale the NIC cycle counter by a large factor so that
* relatively small corrections to the frequency can be added
* or subtracted. The drawbacks of a large factor include
* (a) the clock register overflows more quickly, (b) the cycle
* counter structure must be able to convert the systime value
* to nanoseconds using only a multiplier and a right-shift,
* and (c) the value must fit within the timinca register space
* => math based on internal DMA clock rate and available bits
*
* Note that when there is no link, internal DMA clock is same as when
* link speed is 10Gb. Set the registers correctly even when link is
* down to preserve the clock setting
*/
switch (adapter->link_speed) {
case TXGBE_LINK_SPEED_10_FULL:
*shift = TXGBE_INCVAL_SHIFT_10;
*incval = TXGBE_INCVAL_10;
break;
case TXGBE_LINK_SPEED_100_FULL:
*shift = TXGBE_INCVAL_SHIFT_100;
*incval = TXGBE_INCVAL_100;
break;
case TXGBE_LINK_SPEED_1GB_FULL:
*shift = TXGBE_INCVAL_SHIFT_1GB;
*incval = TXGBE_INCVAL_1GB;
break;
case TXGBE_LINK_SPEED_10GB_FULL:
default: /* TXGBE_LINK_SPEED_10GB_FULL */
*shift = TXGBE_INCVAL_SHIFT_10GB;
*incval = TXGBE_INCVAL_10GB;
break;
}
return;
}
/**
* txgbe_ptp_start_cyclecounter - create the cycle counter from hw
* @adapter: pointer to the adapter structure
*
* This function should be called to set the proper values for the TIMINCA
* register and tell the cyclecounter structure what the tick rate of SYSTIME
* is. It does not directly modify SYSTIME registers or the timecounter
* structure. It should be called whenever a new TIMINCA value is necessary,
* such as during initialization or when the link speed changes.
*/
void txgbe_ptp_start_cyclecounter(struct txgbe_adapter *adapter)
{
struct txgbe_hw *hw = &adapter->hw;
unsigned long flags;
struct cyclecounter cc;
u32 incval = 0;
/* For some of the boards below this mask is technically incorrect.
* The timestamp mask overflows at approximately 61bits. However the
* particular hardware does not overflow on an even bitmask value.
* Instead, it overflows due to conversion of upper 32bits billions of
* cycles. Timecounters are not really intended for this purpose so
* they do not properly function if the overflow point isn't 2^N-1.
* However, the actual SYSTIME values in question take ~138 years to
* overflow. In practice this means they won't actually overflow. A
* proper fix to this problem would require modification of the
* timecounter delta calculations.
*/
cc.mask = CLOCKSOURCE_MASK(64);
cc.mult = 1;
cc.shift = 0;
cc.read = txgbe_ptp_read;
txgbe_ptp_link_speed_adjust(adapter, &cc.shift, &incval);
wr32(hw, TXGBE_TSC_1588_INC,
TXGBE_TSC_1588_INC_IVP(incval, 2));
/* update the base incval used to calculate frequency adjustment */
WRITE_ONCE(adapter->base_incval, incval);
smp_mb();
/* need lock to prevent incorrect read while modifying cyclecounter */
spin_lock_irqsave(&adapter->tmreg_lock, flags);
memcpy(&adapter->hw_cc, &cc, sizeof(adapter->hw_cc));
spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
}
/**
* txgbe_ptp_reset
* @adapter: the txgbe private board structure
*
* When the MAC resets, all of the hardware configuration for timesync is
* reset. This function should be called to re-enable the device for PTP,
* using the last known settings. However, we do lose the current clock time,
* so we fallback to resetting it based on the kernel's realtime clock.
*
* This function will maintain the hwtstamp_config settings, and it retriggers
* the SDP output if it's enabled.
*/
void txgbe_ptp_reset(struct txgbe_adapter *adapter)
{
unsigned long flags;
/* reset the hardware timestamping mode */
txgbe_ptp_set_timestamp_mode(adapter, &adapter->tstamp_config);
txgbe_ptp_start_cyclecounter(adapter);
spin_lock_irqsave(&adapter->tmreg_lock, flags);
timecounter_init(&adapter->hw_tc, &adapter->hw_cc,
ktime_to_ns(ktime_get_real()));
spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
adapter->last_overflow_check = jiffies;
}
/**
* txgbe_ptp_create_clock
* @adapter: the txgbe private adapter structure
*
* This functino performs setup of the user entry point function table and
* initalizes the PTP clock device used by userspace to access the clock-like
* features of the PTP core. It will be called by txgbe_ptp_init, and may
* re-use a previously initialized clock (such as during a suspend/resume
* cycle).
*/
static long txgbe_ptp_create_clock(struct txgbe_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
long err;
/* do nothing if we already have a clock device */
if (!IS_ERR_OR_NULL(adapter->ptp_clock))
return 0;
snprintf(adapter->ptp_caps.name, sizeof(adapter->ptp_caps.name),
"%s", netdev->name);
adapter->ptp_caps.owner = THIS_MODULE;
adapter->ptp_caps.max_adj = 250000000; /* 10^-9s */
adapter->ptp_caps.n_alarm = 0;
adapter->ptp_caps.n_ext_ts = 0;
adapter->ptp_caps.n_per_out = 0;
adapter->ptp_caps.pps = 0;
#ifndef HAVE_NOT_PTT_ADJFREQ
adapter->ptp_caps.adjfreq = txgbe_ptp_adjfreq;
#endif
adapter->ptp_caps.adjtime = txgbe_ptp_adjtime;
#ifdef HAVE_PTP_CLOCK_INFO_GETTIME64
adapter->ptp_caps.gettime64 = txgbe_ptp_gettime64;
adapter->ptp_caps.settime64 = txgbe_ptp_settime64;
#else
adapter->ptp_caps.gettime = txgbe_ptp_gettime;
adapter->ptp_caps.settime = txgbe_ptp_settime;
#endif
adapter->ptp_caps.enable = txgbe_ptp_feature_enable;
adapter->ptp_clock = ptp_clock_register(&adapter->ptp_caps,
pci_dev_to_dev(adapter->pdev));
if (IS_ERR(adapter->ptp_clock)) {
err = PTR_ERR(adapter->ptp_clock);
adapter->ptp_clock = NULL;
e_dev_err("ptp_clock_register failed\n");
return err;
} else
e_dev_info("registered PHC device on %s\n", netdev->name);
/* Set the default timestamp mode to disabled here. We do this in
* create_clock instead of initialization, because we don't want to
* override the previous settings during a suspend/resume cycle.
*/
adapter->tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
adapter->tstamp_config.tx_type = HWTSTAMP_TX_OFF;
return 0;
}
/**
* txgbe_ptp_init
* @adapter: the txgbe private adapter structure
*
* This function performs the required steps for enabling ptp
* support. If ptp support has already been loaded it simply calls the
* cyclecounter init routine and exits.
*/
void txgbe_ptp_init(struct txgbe_adapter *adapter)
{
/* initialize the spin lock first, since the user might call the clock
* functions any time after we've initialized the ptp clock device.
*/
spin_lock_init(&adapter->tmreg_lock);
/* obtain a ptp clock device, or re-use an existing device */
if (txgbe_ptp_create_clock(adapter))
return;
/* we have a clock, so we can intialize work for timestamps now */
INIT_WORK(&adapter->ptp_tx_work, txgbe_ptp_tx_hwtstamp_work);
/* reset the ptp related hardware bits */
txgbe_ptp_reset(adapter);
/* enter the TXGBE_PTP_RUNNING state */
set_bit(__TXGBE_PTP_RUNNING, &adapter->state);
return;
}
/**
* txgbe_ptp_suspend - stop ptp work items
* @adapter: pointer to adapter struct
*
* This function suspends ptp activity, and prevents more work from being
* generated, but does not destroy the clock device.
*/
void txgbe_ptp_suspend(struct txgbe_adapter *adapter)
{
/* leave the TXGBE_PTP_RUNNING STATE */
if (!test_and_clear_bit(__TXGBE_PTP_RUNNING, &adapter->state))
return;
adapter->flags2 &= ~TXGBE_FLAG2_PTP_PPS_ENABLED;
cancel_work_sync(&adapter->ptp_tx_work);
txgbe_ptp_clear_tx_timestamp(adapter);
}
/**
* txgbe_ptp_stop - destroy the ptp_clock device
* @adapter: pointer to adapter struct
*
* Completely destroy the ptp_clock device, and disable all PTP related
* features. Intended to be run when the device is being closed.
*/
void txgbe_ptp_stop(struct txgbe_adapter *adapter)
{
/* first, suspend ptp activity */
txgbe_ptp_suspend(adapter);
/* now destroy the ptp clock device */
if (adapter->ptp_clock) {
ptp_clock_unregister(adapter->ptp_clock);
adapter->ptp_clock = NULL;
e_dev_info("removed PHC on %s\n",
adapter->netdev->name);
}
}

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drivers/net/ethernet/wangxun/txgbe/txgbe_sriov.c Normal file
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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*/
#ifndef _TXGBE_SRIOV_H_
#define _TXGBE_SRIOV_H_
/* txgbe driver limit the max number of VFs could be enabled to
* 63 (TXGBE_MAX_VF_FUNCTIONS - 1)
*/
#define TXGBE_MAX_VFS_DRV_LIMIT (TXGBE_MAX_VF_FUNCTIONS - 1)
void txgbe_restore_vf_multicasts(struct txgbe_adapter *adapter);
int txgbe_set_vf_vlan(struct txgbe_adapter *adapter, int add, int vid, u16 vf);
void txgbe_set_vmolr(struct txgbe_hw *hw, u16 vf, bool aupe);
void txgbe_msg_task(struct txgbe_adapter *adapter);
int txgbe_set_vf_mac(struct txgbe_adapter *adapter,
u16 vf, unsigned char *mac_addr);
void txgbe_disable_tx_rx(struct txgbe_adapter *adapter);
void txgbe_ping_all_vfs(struct txgbe_adapter *adapter);
void txgbe_set_all_vfs(struct txgbe_adapter *adapter);
#ifdef IFLA_VF_MAX
int txgbe_ndo_set_vf_mac(struct net_device *netdev, int queue, u8 *mac);
#ifdef IFLA_VF_VLAN_INFO_MAX
int txgbe_ndo_set_vf_vlan(struct net_device *netdev, int queue, u16 vlan,
u8 qos, __be16 vlan_proto);
#else
int txgbe_ndo_set_vf_vlan(struct net_device *netdev, int queue, u16 vlan,
u8 qos);
#endif
#ifdef HAVE_NDO_SET_VF_MIN_MAX_TX_RATE
int txgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
int max_tx_rate);
#else
int txgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate);
#endif /* HAVE_NDO_SET_VF_MIN_MAX_TX_RATE */
#ifdef HAVE_VF_SPOOFCHK_CONFIGURE
int txgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting);
#endif
#ifdef HAVE_NDO_SET_VF_LINK_STATE
int txgbe_ndo_set_vf_link_state(struct net_device *netdev, int vf, int state);
#endif
#ifdef HAVE_NDO_SET_VF_TRUST
int txgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting);
#endif
int txgbe_ndo_get_vf_config(struct net_device *netdev,
int vf, struct ifla_vf_info *ivi);
#endif /* IFLA_VF_MAX */
int txgbe_disable_sriov(struct txgbe_adapter *adapter);
#ifdef CONFIG_PCI_IOV
int txgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask);
void txgbe_enable_sriov(struct txgbe_adapter *adapter);
#endif
int txgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs);
void txgbe_set_vf_link_state(struct txgbe_adapter *adapter, int vf, int state);
/*
* These are defined in txgbe_type.h on behalf of the VF driver
* but we need them here unwrapped for the PF driver.
*/
#define TXGBE_DEV_ID_SP_VF 0x1000
#endif /* _TXGBE_SRIOV_H_ */

229
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/*
* WangXun 10 Gigabit PCI Express Linux driver
* Copyright (c) 2015 - 2017 Beijing WangXun Technology Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* based on ixgbe_sysfs.c, Copyright(c) 1999 - 2017 Intel Corporation.
* Contact Information:
* Linux NICS <linux.nics@intel.com>
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#include "txgbe.h"
#include "txgbe_hw.h"
#include "txgbe_type.h"
#ifdef TXGBE_SYSFS
#include <linux/module.h>
#include <linux/types.h>
#include <linux/sysfs.h>
#include <linux/kobject.h>
#include <linux/device.h>
#include <linux/netdevice.h>
#include <linux/time.h>
#ifdef TXGBE_HWMON
#include <linux/hwmon.h>
#endif
#ifdef TXGBE_HWMON
/* hwmon callback functions */
static ssize_t txgbe_hwmon_show_temp(struct device __always_unused *dev,
struct device_attribute *attr,
char *buf)
{
struct hwmon_attr *txgbe_attr = container_of(attr, struct hwmon_attr,
dev_attr);
unsigned int value;
/* reset the temp field */
TCALL(txgbe_attr->hw, mac.ops.get_thermal_sensor_data);
value = txgbe_attr->sensor->temp;
/* display millidegree */
value *= 1000;
return sprintf(buf, "%u\n", value);
}
static ssize_t txgbe_hwmon_show_alarmthresh(struct device __always_unused *dev,
struct device_attribute *attr,
char *buf)
{
struct hwmon_attr *txgbe_attr = container_of(attr, struct hwmon_attr,
dev_attr);
unsigned int value = txgbe_attr->sensor->alarm_thresh;
/* display millidegree */
value *= 1000;
return sprintf(buf, "%u\n", value);
}
static ssize_t txgbe_hwmon_show_dalarmthresh(struct device __always_unused *dev,
struct device_attribute *attr,
char *buf)
{
struct hwmon_attr *txgbe_attr = container_of(attr, struct hwmon_attr,
dev_attr);
unsigned int value = txgbe_attr->sensor->dalarm_thresh;
/* display millidegree */
value *= 1000;
return sprintf(buf, "%u\n", value);
}
/**
* txgbe_add_hwmon_attr - Create hwmon attr table for a hwmon sysfs file.
* @adapter: pointer to the adapter structure
* @type: type of sensor data to display
*
* For each file we want in hwmon's sysfs interface we need a device_attribute
* This is included in our hwmon_attr struct that contains the references to
* the data structures we need to get the data to display.
*/
static int txgbe_add_hwmon_attr(struct txgbe_adapter *adapter, int type)
{
int rc;
unsigned int n_attr;
struct hwmon_attr *txgbe_attr;
n_attr = adapter->txgbe_hwmon_buff.n_hwmon;
txgbe_attr = &adapter->txgbe_hwmon_buff.hwmon_list[n_attr];
switch (type) {
case TXGBE_HWMON_TYPE_TEMP:
txgbe_attr->dev_attr.show = txgbe_hwmon_show_temp;
snprintf(txgbe_attr->name, sizeof(txgbe_attr->name),
"temp%u_input", 0);
break;
case TXGBE_HWMON_TYPE_ALARMTHRESH:
txgbe_attr->dev_attr.show = txgbe_hwmon_show_alarmthresh;
snprintf(txgbe_attr->name, sizeof(txgbe_attr->name),
"temp%u_alarmthresh", 0);
break;
case TXGBE_HWMON_TYPE_DALARMTHRESH:
txgbe_attr->dev_attr.show = txgbe_hwmon_show_dalarmthresh;
snprintf(txgbe_attr->name, sizeof(txgbe_attr->name),
"temp%u_dalarmthresh", 0);
break;
default:
rc = -EPERM;
return rc;
}
/* These always the same regardless of type */
txgbe_attr->sensor =
&adapter->hw.mac.thermal_sensor_data.sensor;
txgbe_attr->hw = &adapter->hw;
txgbe_attr->dev_attr.store = NULL;
txgbe_attr->dev_attr.attr.mode = S_IRUGO;
txgbe_attr->dev_attr.attr.name = txgbe_attr->name;
rc = device_create_file(pci_dev_to_dev(adapter->pdev),
&txgbe_attr->dev_attr);
if (rc == 0)
++adapter->txgbe_hwmon_buff.n_hwmon;
return rc;
}
#endif /* TXGBE_HWMON */
static void txgbe_sysfs_del_adapter(
struct txgbe_adapter __maybe_unused *adapter)
{
#ifdef TXGBE_HWMON
int i;
if (adapter == NULL)
return;
for (i = 0; i < adapter->txgbe_hwmon_buff.n_hwmon; i++) {
device_remove_file(pci_dev_to_dev(adapter->pdev),
&adapter->txgbe_hwmon_buff.hwmon_list[i].dev_attr);
}
kfree(adapter->txgbe_hwmon_buff.hwmon_list);
if (adapter->txgbe_hwmon_buff.device)
hwmon_device_unregister(adapter->txgbe_hwmon_buff.device);
#endif /* TXGBE_HWMON */
}
/* called from txgbe_main.c */
void txgbe_sysfs_exit(struct txgbe_adapter *adapter)
{
txgbe_sysfs_del_adapter(adapter);
}
/* called from txgbe_main.c */
int txgbe_sysfs_init(struct txgbe_adapter *adapter)
{
int rc = 0;
#ifdef TXGBE_HWMON
struct hwmon_buff *txgbe_hwmon = &adapter->txgbe_hwmon_buff;
int n_attrs;
#endif /* TXGBE_HWMON */
if (adapter == NULL)
goto err;
#ifdef TXGBE_HWMON
/* Don't create thermal hwmon interface if no sensors present */
if (TCALL(&adapter->hw, mac.ops.init_thermal_sensor_thresh))
goto no_thermal;
/*
* Allocation space for max attributs
* max num sensors * values (temp, alamthresh, dalarmthresh)
*/
n_attrs = 3;
txgbe_hwmon->hwmon_list = kcalloc(n_attrs, sizeof(struct hwmon_attr),
GFP_KERNEL);
if (!txgbe_hwmon->hwmon_list) {
rc = -ENOMEM;
goto err;
}
txgbe_hwmon->device =
hwmon_device_register(pci_dev_to_dev(adapter->pdev));
if (IS_ERR(txgbe_hwmon->device)) {
rc = PTR_ERR(txgbe_hwmon->device);
goto err;
}
/* Bail if any hwmon attr struct fails to initialize */
rc = txgbe_add_hwmon_attr(adapter, TXGBE_HWMON_TYPE_TEMP);
rc |= txgbe_add_hwmon_attr(adapter, TXGBE_HWMON_TYPE_ALARMTHRESH);
rc |= txgbe_add_hwmon_attr(adapter, TXGBE_HWMON_TYPE_DALARMTHRESH);
if (rc)
goto err;
no_thermal:
#endif /* TXGBE_HWMON */
goto exit;
err:
txgbe_sysfs_del_adapter(adapter);
exit:
return rc;
}
#endif /* TXGBE_SYSFS */

3250
drivers/net/ethernet/wangxun/txgbe/txgbe_type.h Normal file
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1153
drivers/net/ethernet/wangxun/txgbe/txgbe_xsk.c Normal file
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71
drivers/net/ethernet/wangxun/txgbe/txgbe_xsk.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 1999 - 2022 Intel Corporation. */
#ifndef _TXGBE_TXRX_COMMON_H_
#define _TXGBE_TXRX_COMMON_H_
#ifndef TXGBE_TXD_CMD
#define TXGBE_TXD_CMD (TXGBE_TXD_EOP | \
TXGBE_TXD_RS)
#endif
#define TXGBE_XDP_PASS 0
#define TXGBE_XDP_CONSUMED BIT(0)
#define TXGBE_XDP_TX BIT(1)
#define TXGBE_XDP_REDIR BIT(2)
#ifdef HAVE_XDP_SUPPORT
#ifdef HAVE_XDP_FRAME_STRUCT
int txgbe_xmit_xdp_ring(struct txgbe_ring *ring, struct xdp_frame *xdpf);
#else
int txgbe_xmit_xdp_ring(struct txgbe_ring *ring, struct xdp_buff *xdp);
#endif
#ifdef HAVE_AF_XDP_ZC_SUPPORT
void txgbe_txrx_ring_disable(struct txgbe_adapter *adapter, int ring);
void txgbe_txrx_ring_enable(struct txgbe_adapter *adapter, int ring);
#ifndef HAVE_NETDEV_BPF_XSK_POOL
struct xdp_umem *txgbe_xsk_umem(struct txgbe_adapter *adapter,
struct txgbe_ring *ring);
int txgbe_xsk_umem_setup(struct txgbe_adapter *adapter, struct xdp_umem *umem,
u16 qid);
#else
struct xsk_buff_pool *txgbe_xsk_umem(struct txgbe_adapter *adapter,
struct txgbe_ring *ring);
int txgbe_xsk_umem_setup(struct txgbe_adapter *adapter, struct xsk_buff_pool *umem,
u16 qid);
#endif /* HAVE_NETDEV_BPF_XSK_POOL */
#ifndef HAVE_MEM_TYPE_XSK_BUFF_POOL
void txgbe_alloc_rx_buffers_zc(struct txgbe_ring *rx_ring, u16 cleaned_count);
void txgbe_zca_free(struct zero_copy_allocator *alloc, unsigned long handle);
#else
bool txgbe_alloc_rx_buffers_zc(struct txgbe_ring *rx_ring, u16 cleaned_count);
#endif
int txgbe_clean_rx_irq_zc(struct txgbe_q_vector *q_vector,
struct txgbe_ring *rx_ring,
const int budget);
void txgbe_xsk_clean_rx_ring(struct txgbe_ring *rx_ring);
bool txgbe_clean_xdp_tx_irq(struct txgbe_q_vector *q_vector,
struct txgbe_ring *tx_ring);
#ifdef HAVE_NDO_XSK_WAKEUP
int txgbe_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags);
#else
int txgbe_xsk_async_xmit(struct net_device *dev, u32 queue_id);
#endif
void txgbe_xsk_clean_tx_ring(struct txgbe_ring *tx_ring);
bool txgbe_xsk_any_rx_ring_enabled(struct txgbe_adapter *adapter);
#endif /* HAVE_AF_XDP_ZC_SUPPORT */
#endif /* HAVE_XDP_SUPPORT */
bool txgbe_cleanup_headers(struct txgbe_ring __maybe_unused *rx_ring,
union txgbe_rx_desc *rx_desc,
struct sk_buff *skb);
void txgbe_process_skb_fields(struct txgbe_ring *rx_ring,
union txgbe_rx_desc *rx_desc,
struct sk_buff *skb);
void txgbe_rx_skb(struct txgbe_q_vector *q_vector,
struct txgbe_ring *rx_ring,
union txgbe_rx_desc *rx_desc,
struct sk_buff *skb);
#endif /* _TXGBE_TXRX_COMMON_H_ */