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igb: add 82576 MAC support

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Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Alexander Duyck 2008-07-08 15:10:12 -07:00 committed by Jeff Garzik
parent 0024fd00cd
commit 2d064c06fe
9 changed files with 477 additions and 87 deletions
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208
drivers/net/igb/e1000_82575.c
View File

@ -31,6 +31,7 @@
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/if_ether.h>
#include "e1000_mac.h"
#include "e1000_82575.h"
@ -45,7 +46,6 @@ static s32 igb_get_cfg_done_82575(struct e1000_hw *);
static s32 igb_init_hw_82575(struct e1000_hw *);
static s32 igb_phy_hw_reset_sgmii_82575(struct e1000_hw *);
static s32 igb_read_phy_reg_sgmii_82575(struct e1000_hw *, u32, u16 *);
static void igb_rar_set_82575(struct e1000_hw *, u8 *, u32);
static s32 igb_reset_hw_82575(struct e1000_hw *);
static s32 igb_set_d0_lplu_state_82575(struct e1000_hw *, bool);
static s32 igb_setup_copper_link_82575(struct e1000_hw *);
@ -84,6 +84,12 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
case E1000_DEV_ID_82575GB_QUAD_COPPER:
mac->type = e1000_82575;
break;
case E1000_DEV_ID_82576:
case E1000_DEV_ID_82576_FIBER:
case E1000_DEV_ID_82576_SERDES:
case E1000_DEV_ID_82576_QUAD_COPPER:
mac->type = e1000_82576;
break;
default:
return -E1000_ERR_MAC_INIT;
break;
@ -128,6 +134,8 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
mac->mta_reg_count = 128;
/* Set rar entry count */
mac->rar_entry_count = E1000_RAR_ENTRIES_82575;
if (mac->type == e1000_82576)
mac->rar_entry_count = E1000_RAR_ENTRIES_82576;
/* Set if part includes ASF firmware */
mac->asf_firmware_present = true;
/* Set if manageability features are enabled. */
@ -694,13 +702,12 @@ static s32 igb_check_for_link_82575(struct e1000_hw *hw)
if ((hw->phy.media_type != e1000_media_type_copper) ||
(igb_sgmii_active_82575(hw)))
ret_val = igb_get_pcs_speed_and_duplex_82575(hw, &speed,
&duplex);
&duplex);
else
ret_val = igb_check_for_copper_link(hw);
return ret_val;
}
/**
* igb_get_pcs_speed_and_duplex_82575 - Retrieve current speed/duplex
* @hw: pointer to the HW structure
@ -757,18 +764,129 @@ static s32 igb_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw, u16 *speed,
}
/**
* igb_rar_set_82575 - Set receive address register
* igb_init_rx_addrs_82575 - Initialize receive address's
* @hw: pointer to the HW structure
* @addr: pointer to the receive address
* @index: receive address array register
* @rar_count: receive address registers
*
* Sets the receive address array register at index to the address passed
* in by addr.
* Setups the receive address registers by setting the base receive address
* register to the devices MAC address and clearing all the other receive
* address registers to 0.
**/
static void igb_rar_set_82575(struct e1000_hw *hw, u8 *addr, u32 index)
static void igb_init_rx_addrs_82575(struct e1000_hw *hw, u16 rar_count)
{
if (index < E1000_RAR_ENTRIES_82575)
igb_rar_set(hw, addr, index);
u32 i;
u8 addr[6] = {0,0,0,0,0,0};
/*
* This function is essentially the same as that of
* e1000_init_rx_addrs_generic. However it also takes care
* of the special case where the register offset of the
* second set of RARs begins elsewhere. This is implicitly taken care by
* function e1000_rar_set_generic.
*/
hw_dbg("e1000_init_rx_addrs_82575");
/* Setup the receive address */
hw_dbg("Programming MAC Address into RAR[0]\n");
hw->mac.ops.rar_set(hw, hw->mac.addr, 0);
/* Zero out the other (rar_entry_count - 1) receive addresses */
hw_dbg("Clearing RAR[1-%u]\n", rar_count-1);
for (i = 1; i < rar_count; i++)
hw->mac.ops.rar_set(hw, addr, i);
}
/**
* igb_update_mc_addr_list_82575 - Update Multicast addresses
* @hw: pointer to the HW structure
* @mc_addr_list: array of multicast addresses to program
* @mc_addr_count: number of multicast addresses to program
* @rar_used_count: the first RAR register free to program
* @rar_count: total number of supported Receive Address Registers
*
* Updates the Receive Address Registers and Multicast Table Array.
* The caller must have a packed mc_addr_list of multicast addresses.
* The parameter rar_count will usually be hw->mac.rar_entry_count
* unless there are workarounds that change this.
**/
void igb_update_mc_addr_list_82575(struct e1000_hw *hw,
u8 *mc_addr_list, u32 mc_addr_count,
u32 rar_used_count, u32 rar_count)
{
u32 hash_value;
u32 i;
u8 addr[6] = {0,0,0,0,0,0};
/*
* This function is essentially the same as that of
* igb_update_mc_addr_list_generic. However it also takes care
* of the special case where the register offset of the
* second set of RARs begins elsewhere. This is implicitly taken care by
* function e1000_rar_set_generic.
*/
/*
* Load the first set of multicast addresses into the exact
* filters (RAR). If there are not enough to fill the RAR
* array, clear the filters.
*/
for (i = rar_used_count; i < rar_count; i++) {
if (mc_addr_count) {
igb_rar_set(hw, mc_addr_list, i);
mc_addr_count--;
mc_addr_list += ETH_ALEN;
} else {
igb_rar_set(hw, addr, i);
}
}
/* Clear the old settings from the MTA */
hw_dbg("Clearing MTA\n");
for (i = 0; i < hw->mac.mta_reg_count; i++) {
array_wr32(E1000_MTA, i, 0);
wrfl();
}
/* Load any remaining multicast addresses into the hash table. */
for (; mc_addr_count > 0; mc_addr_count--) {
hash_value = igb_hash_mc_addr(hw, mc_addr_list);
hw_dbg("Hash value = 0x%03X\n", hash_value);
hw->mac.ops.mta_set(hw, hash_value);
mc_addr_list += ETH_ALEN;
}
}
/**
* igb_shutdown_fiber_serdes_link_82575 - Remove link during power down
* @hw: pointer to the HW structure
*
* In the case of fiber serdes, shut down optics and PCS on driver unload
* when management pass thru is not enabled.
**/
void igb_shutdown_fiber_serdes_link_82575(struct e1000_hw *hw)
{
u32 reg;
if (hw->mac.type != e1000_82576 ||
(hw->phy.media_type != e1000_media_type_fiber &&
hw->phy.media_type != e1000_media_type_internal_serdes))
return;
/* if the management interface is not enabled, then power down */
if (!igb_enable_mng_pass_thru(hw)) {
/* Disable PCS to turn off link */
reg = rd32(E1000_PCS_CFG0);
reg &= ~E1000_PCS_CFG_PCS_EN;
wr32(E1000_PCS_CFG0, reg);
/* shutdown the laser */
reg = rd32(E1000_CTRL_EXT);
reg |= E1000_CTRL_EXT_SDP7_DATA;
wr32(E1000_CTRL_EXT, reg);
/* flush the write to verify completion */
wrfl();
msleep(1);
}
return;
}
@ -854,7 +972,7 @@ static s32 igb_init_hw_82575(struct e1000_hw *hw)
igb_clear_vfta(hw);
/* Setup the receive address */
igb_init_rx_addrs(hw, rar_count);
igb_init_rx_addrs_82575(hw, rar_count);
/* Zero out the Multicast HASH table */
hw_dbg("Zeroing the MTA\n");
for (i = 0; i < mac->mta_reg_count; i++)
@ -1113,6 +1231,70 @@ static bool igb_sgmii_active_82575(struct e1000_hw *hw)
return ret_val;
}
/**
* igb_translate_register_82576 - Translate the proper register offset
* @reg: e1000 register to be read
*
* Registers in 82576 are located in different offsets than other adapters
* even though they function in the same manner. This function takes in
* the name of the register to read and returns the correct offset for
* 82576 silicon.
**/
u32 igb_translate_register_82576(u32 reg)
{
/*
* Some of the Kawela registers are located at different
* offsets than they are in older adapters.
* Despite the difference in location, the registers
* function in the same manner.
*/
switch (reg) {
case E1000_TDBAL(0):
reg = 0x0E000;
break;
case E1000_TDBAH(0):
reg = 0x0E004;
break;
case E1000_TDLEN(0):
reg = 0x0E008;
break;
case E1000_TDH(0):
reg = 0x0E010;
break;
case E1000_TDT(0):
reg = 0x0E018;
break;
case E1000_TXDCTL(0):
reg = 0x0E028;
break;
case E1000_RDBAL(0):
reg = 0x0C000;
break;
case E1000_RDBAH(0):
reg = 0x0C004;
break;
case E1000_RDLEN(0):
reg = 0x0C008;
break;
case E1000_RDH(0):
reg = 0x0C010;
break;
case E1000_RDT(0):
reg = 0x0C018;
break;
case E1000_RXDCTL(0):
reg = 0x0C028;
break;
case E1000_SRRCTL(0):
reg = 0x0C00C;
break;
default:
break;
}
return reg;
}
/**
* igb_reset_init_script_82575 - Inits HW defaults after reset
* @hw: pointer to the HW structure
@ -1304,7 +1486,7 @@ static struct e1000_mac_operations e1000_mac_ops_82575 = {
.reset_hw = igb_reset_hw_82575,
.init_hw = igb_init_hw_82575,
.check_for_link = igb_check_for_link_82575,
.rar_set = igb_rar_set_82575,
.rar_set = igb_rar_set,
.read_mac_addr = igb_read_mac_addr_82575,
.get_speed_and_duplex = igb_get_speed_and_duplex_copper,
};

9
drivers/net/igb/e1000_82575.h
View File

@ -28,9 +28,13 @@
#ifndef _E1000_82575_H_
#define _E1000_82575_H_
u32 igb_translate_register_82576(u32 reg);
void igb_update_mc_addr_list_82575(struct e1000_hw*, u8*, u32, u32, u32);
extern void igb_shutdown_fiber_serdes_link_82575(struct e1000_hw *hw);
extern void igb_rx_fifo_flush_82575(struct e1000_hw *hw);
#define E1000_RAR_ENTRIES_82575 16
#define E1000_RAR_ENTRIES_82576 24
/* SRRCTL bit definitions */
#define E1000_SRRCTL_BSIZEPKT_SHIFT 10 /* Shift _right_ */
@ -159,5 +163,10 @@ struct e1000_adv_tx_context_desc {
#define E1000_DCA_TXCTRL_DESC_DCA_EN (1 << 5) /* DCA Tx Desc enable */
#define E1000_DCA_TXCTRL_TX_WB_RO_EN (1 << 11) /* Tx Desc writeback RO bit */
/* Additional DCA related definitions, note change in position of CPUID */
#define E1000_DCA_TXCTRL_CPUID_MASK_82576 0xFF000000 /* Tx CPUID Mask */
#define E1000_DCA_RXCTRL_CPUID_MASK_82576 0xFF000000 /* Rx CPUID Mask */
#define E1000_DCA_TXCTRL_CPUID_SHIFT 24 /* Tx CPUID now in the last byte */
#define E1000_DCA_RXCTRL_CPUID_SHIFT 24 /* Rx CPUID now in the last byte */
#endif

10
drivers/net/igb/e1000_defines.h
View File

@ -90,6 +90,11 @@
#define E1000_I2CCMD_ERROR 0x80000000
#define E1000_MAX_SGMII_PHY_REG_ADDR 255
#define E1000_I2CCMD_PHY_TIMEOUT 200
#define E1000_IVAR_VALID 0x80
#define E1000_GPIE_NSICR 0x00000001
#define E1000_GPIE_MSIX_MODE 0x00000010
#define E1000_GPIE_EIAME 0x40000000
#define E1000_GPIE_PBA 0x80000000
/* Receive Descriptor bit definitions */
#define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */
@ -213,6 +218,7 @@
/* Device Control */
#define E1000_CTRL_FD 0x00000001 /* Full duplex.0=half; 1=full */
#define E1000_CTRL_GIO_MASTER_DISABLE 0x00000004 /*Blocks new Master requests */
#define E1000_CTRL_LRST 0x00000008 /* Link reset. 0=normal,1=reset */
#define E1000_CTRL_ASDE 0x00000020 /* Auto-speed detect enable */
#define E1000_CTRL_SLU 0x00000040 /* Set link up (Force Link) */
#define E1000_CTRL_ILOS 0x00000080 /* Invert Loss-Of Signal */
@ -244,6 +250,7 @@
*/
#define E1000_CONNSW_ENRGSRC 0x4
#define E1000_PCS_CFG_PCS_EN 8
#define E1000_PCS_LCTL_FLV_LINK_UP 1
#define E1000_PCS_LCTL_FSV_100 2
#define E1000_PCS_LCTL_FSV_1000 4
@ -253,6 +260,7 @@
#define E1000_PCS_LCTL_AN_ENABLE 0x10000
#define E1000_PCS_LCTL_AN_RESTART 0x20000
#define E1000_PCS_LCTL_AN_TIMEOUT 0x40000
#define E1000_ENABLE_SERDES_LOOPBACK 0x0410
#define E1000_PCS_LSTS_LINK_OK 1
#define E1000_PCS_LSTS_SPEED_100 2
@ -360,6 +368,7 @@
#define E1000_PBA_16K 0x0010 /* 16KB, default TX allocation */
#define E1000_PBA_24K 0x0018
#define E1000_PBA_34K 0x0022
#define E1000_PBA_64K 0x0040 /* 64KB */
#define IFS_MAX 80
#define IFS_MIN 40
@ -528,6 +537,7 @@
/* PHY Control Register */
#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */
#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */
#define MII_CR_POWER_DOWN 0x0800 /* Power down */
#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */
#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */
#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */

8
drivers/net/igb/e1000_hw.h
View File

@ -38,6 +38,10 @@
struct e1000_hw;
#define E1000_DEV_ID_82576 0x10C9
#define E1000_DEV_ID_82576_FIBER 0x10E6
#define E1000_DEV_ID_82576_SERDES 0x10E7
#define E1000_DEV_ID_82576_QUAD_COPPER 0x10E8
#define E1000_DEV_ID_82575EB_COPPER 0x10A7
#define E1000_DEV_ID_82575EB_FIBER_SERDES 0x10A9
#define E1000_DEV_ID_82575GB_QUAD_COPPER 0x10D6
@ -50,6 +54,7 @@ struct e1000_hw;
enum e1000_mac_type {
e1000_undefined = 0,
e1000_82575,
e1000_82576,
e1000_num_macs /* List is 1-based, so subtract 1 for true count. */
};
@ -410,14 +415,17 @@ struct e1000_mac_operations {
s32 (*check_for_link)(struct e1000_hw *);
s32 (*reset_hw)(struct e1000_hw *);
s32 (*init_hw)(struct e1000_hw *);
bool (*check_mng_mode)(struct e1000_hw *);
s32 (*setup_physical_interface)(struct e1000_hw *);
void (*rar_set)(struct e1000_hw *, u8 *, u32);
s32 (*read_mac_addr)(struct e1000_hw *);
s32 (*get_speed_and_duplex)(struct e1000_hw *, u16 *, u16 *);
void (*mta_set)(struct e1000_hw *, u32);
};
struct e1000_phy_operations {
s32 (*acquire_phy)(struct e1000_hw *);
s32 (*check_reset_block)(struct e1000_hw *);
s32 (*force_speed_duplex)(struct e1000_hw *);
s32 (*get_cfg_done)(struct e1000_hw *hw);
s32 (*get_cable_length)(struct e1000_hw *);

3
drivers/net/igb/e1000_mac.c
View File

@ -36,7 +36,6 @@
static s32 igb_set_default_fc(struct e1000_hw *hw);
static s32 igb_set_fc_watermarks(struct e1000_hw *hw);
static u32 igb_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr);
/**
* igb_remove_device - Free device specific structure
@ -360,7 +359,7 @@ void igb_update_mc_addr_list(struct e1000_hw *hw,
* the multicast filter table array address and new table value. See
* igb_mta_set()
**/
static u32 igb_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr)
u32 igb_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr)
{
u32 hash_value, hash_mask;
u8 bit_shift = 0;

1
drivers/net/igb/e1000_mac.h
View File

@ -94,5 +94,6 @@ enum e1000_mng_mode {
#define E1000_HICR_C 0x02
extern void e1000_init_function_pointers_82575(struct e1000_hw *hw);
extern u32 igb_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr);
#endif

7
drivers/net/igb/e1000_regs.h
View File

@ -56,6 +56,9 @@
#define E1000_EIMC 0x01528 /* Ext. Interrupt Mask Clear - WO */
#define E1000_EIAC 0x0152C /* Ext. Interrupt Auto Clear - RW */
#define E1000_EIAM 0x01530 /* Ext. Interrupt Ack Auto Clear Mask - RW */
#define E1000_GPIE 0x01514 /* General Purpose Interrupt Enable - RW */
#define E1000_IVAR0 0x01700 /* Interrupt Vector Allocation (array) - RW */
#define E1000_IVAR_MISC 0x01740 /* IVAR for "other" causes - RW */
#define E1000_TCTL 0x00400 /* TX Control - RW */
#define E1000_TCTL_EXT 0x00404 /* Extended TX Control - RW */
#define E1000_TIPG 0x00410 /* TX Inter-packet gap -RW */
@ -217,6 +220,7 @@
#define E1000_RFCTL 0x05008 /* Receive Filter Control*/
#define E1000_MTA 0x05200 /* Multicast Table Array - RW Array */
#define E1000_RA 0x05400 /* Receive Address - RW Array */
#define E1000_RA2 0x054E0 /* 2nd half of receive address array - RW Array */
#define E1000_VFTA 0x05600 /* VLAN Filter Table Array - RW Array */
#define E1000_VMD_CTL 0x0581C /* VMDq Control - RW */
#define E1000_WUC 0x05800 /* Wakeup Control - RW */
@ -258,7 +262,8 @@
#define E1000_RETA(_i) (0x05C00 + ((_i) * 4))
#define E1000_RSSRK(_i) (0x05C80 + ((_i) * 4)) /* RSS Random Key - RW Array */
#define E1000_REGISTER(a, reg) reg
#define E1000_REGISTER(a, reg) (((a)->mac.type < e1000_82576) \
? reg : e1000_translate_register_82576(reg))
#define wr32(reg, value) (writel(value, hw->hw_addr + reg))
#define rd32(reg) (readl(hw->hw_addr + reg))

148
drivers/net/igb/igb_ethtool.c
View File

@ -827,8 +827,9 @@ static int igb_set_ringparam(struct net_device *netdev,
/* ethtool register test data */
struct igb_reg_test {
u16 reg;
u8 array_len;
u8 test_type;
u16 reg_offset;
u16 array_len;
u16 test_type;
u32 mask;
u32 write;
};
@ -850,34 +851,72 @@ struct igb_reg_test {
#define TABLE64_TEST_LO 5
#define TABLE64_TEST_HI 6
/* default register test */
static struct igb_reg_test reg_test_82575[] = {
{ E1000_FCAL, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_FCAH, 1, PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
{ E1000_FCT, 1, PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
{ E1000_VET, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
{ E1000_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
/* 82576 reg test */
static struct igb_reg_test reg_test_82576[] = {
{ E1000_FCAL, 0x100, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_FCAH, 0x100, 1, PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
{ E1000_FCT, 0x100, 1, PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
{ E1000_VET, 0x100, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RDBAL(0), 0x100, 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
{ E1000_RDBAH(0), 0x100, 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RDLEN(0), 0x100, 4, PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
{ E1000_RDBAL(4), 0x40, 8, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
{ E1000_RDBAH(4), 0x40, 8, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RDLEN(4), 0x40, 8, PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
/* Enable all four RX queues before testing. */
{ E1000_RXDCTL(0), 4, WRITE_NO_TEST, 0, E1000_RXDCTL_QUEUE_ENABLE },
{ E1000_RXDCTL(0), 0x100, 1, WRITE_NO_TEST, 0, E1000_RXDCTL_QUEUE_ENABLE },
/* RDH is read-only for 82576, only test RDT. */
{ E1000_RDT(0), 0x100, 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
{ E1000_RXDCTL(0), 0x100, 4, WRITE_NO_TEST, 0, 0 },
{ E1000_FCRTH, 0x100, 1, PATTERN_TEST, 0x0000FFF0, 0x0000FFF0 },
{ E1000_FCTTV, 0x100, 1, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
{ E1000_TIPG, 0x100, 1, PATTERN_TEST, 0x3FFFFFFF, 0x3FFFFFFF },
{ E1000_TDBAL(0), 0x100, 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
{ E1000_TDBAH(0), 0x100, 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_TDLEN(0), 0x100, 4, PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
{ E1000_TDBAL(4), 0x40, 8, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
{ E1000_TDBAH(4), 0x40, 8, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_TDLEN(4), 0x40, 8, PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
{ E1000_RCTL, 0x100, 1, SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
{ E1000_RCTL, 0x100, 1, SET_READ_TEST, 0x04CFB0FE, 0x003FFFFB },
{ E1000_RCTL, 0x100, 1, SET_READ_TEST, 0x04CFB0FE, 0xFFFFFFFF },
{ E1000_TCTL, 0x100, 1, SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
{ E1000_RA, 0, 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RA, 0, 16, TABLE64_TEST_HI, 0x83FFFFFF, 0xFFFFFFFF },
{ E1000_RA2, 0, 8, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RA2, 0, 8, TABLE64_TEST_HI, 0x83FFFFFF, 0xFFFFFFFF },
{ E1000_MTA, 0, 128,TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ 0, 0, 0, 0 }
};
/* 82575 register test */
static struct igb_reg_test reg_test_82575[] = {
{ E1000_FCAL, 0x100, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_FCAH, 0x100, 1, PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
{ E1000_FCT, 0x100, 1, PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
{ E1000_VET, 0x100, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RDBAL(0), 0x100, 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
{ E1000_RDBAH(0), 0x100, 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RDLEN(0), 0x100, 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
/* Enable all four RX queues before testing. */
{ E1000_RXDCTL(0), 0x100, 4, WRITE_NO_TEST, 0, E1000_RXDCTL_QUEUE_ENABLE },
/* RDH is read-only for 82575, only test RDT. */
{ E1000_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
{ E1000_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
{ E1000_FCRTH, 1, PATTERN_TEST, 0x0000FFF0, 0x0000FFF0 },
{ E1000_FCTTV, 1, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
{ E1000_TIPG, 1, PATTERN_TEST, 0x3FFFFFFF, 0x3FFFFFFF },
{ E1000_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
{ E1000_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
{ E1000_RCTL, 1, SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
{ E1000_RCTL, 1, SET_READ_TEST, 0x04CFB3FE, 0x003FFFFB },
{ E1000_RCTL, 1, SET_READ_TEST, 0x04CFB3FE, 0xFFFFFFFF },
{ E1000_TCTL, 1, SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
{ E1000_TXCW, 1, PATTERN_TEST, 0xC000FFFF, 0x0000FFFF },
{ E1000_RA, 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RA, 16, TABLE64_TEST_HI, 0x800FFFFF, 0xFFFFFFFF },
{ E1000_MTA, 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RDT(0), 0x100, 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
{ E1000_RXDCTL(0), 0x100, 4, WRITE_NO_TEST, 0, 0 },
{ E1000_FCRTH, 0x100, 1, PATTERN_TEST, 0x0000FFF0, 0x0000FFF0 },
{ E1000_FCTTV, 0x100, 1, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
{ E1000_TIPG, 0x100, 1, PATTERN_TEST, 0x3FFFFFFF, 0x3FFFFFFF },
{ E1000_TDBAL(0), 0x100, 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
{ E1000_TDBAH(0), 0x100, 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_TDLEN(0), 0x100, 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
{ E1000_RCTL, 0x100, 1, SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
{ E1000_RCTL, 0x100, 1, SET_READ_TEST, 0x04CFB3FE, 0x003FFFFB },
{ E1000_RCTL, 0x100, 1, SET_READ_TEST, 0x04CFB3FE, 0xFFFFFFFF },
{ E1000_TCTL, 0x100, 1, SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
{ E1000_TXCW, 0x100, 1, PATTERN_TEST, 0xC000FFFF, 0x0000FFFF },
{ E1000_RA, 0, 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
{ E1000_RA, 0, 16, TABLE64_TEST_HI, 0x800FFFFF, 0xFFFFFFFF },
{ E1000_MTA, 0, 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ 0, 0, 0, 0 }
};
@ -937,7 +976,15 @@ static int igb_reg_test(struct igb_adapter *adapter, u64 *data)
u32 i, toggle;
toggle = 0x7FFFF3FF;
test = reg_test_82575;
switch (adapter->hw.mac.type) {
case e1000_82576:
test = reg_test_82576;
break;
default:
test = reg_test_82575;
break;
}
/* Because the status register is such a special case,
* we handle it separately from the rest of the register
@ -964,19 +1011,19 @@ static int igb_reg_test(struct igb_adapter *adapter, u64 *data)
for (i = 0; i < test->array_len; i++) {
switch (test->test_type) {
case PATTERN_TEST:
REG_PATTERN_TEST(test->reg + (i * 0x100),
REG_PATTERN_TEST(test->reg + (i * test->reg_offset),
test->mask,
test->write);
break;
case SET_READ_TEST:
REG_SET_AND_CHECK(test->reg + (i * 0x100),
REG_SET_AND_CHECK(test->reg + (i * test->reg_offset),
test->mask,
test->write);
break;
case WRITE_NO_TEST:
writel(test->write,
(adapter->hw.hw_addr + test->reg)
+ (i * 0x100));
+ (i * test->reg_offset));
break;
case TABLE32_TEST:
REG_PATTERN_TEST(test->reg + (i * 4),
@ -1392,13 +1439,39 @@ static int igb_set_phy_loopback(struct igb_adapter *adapter)
static int igb_setup_loopback_test(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
u32 rctl;
u32 reg;
if (hw->phy.media_type == e1000_media_type_fiber ||
hw->phy.media_type == e1000_media_type_internal_serdes) {
rctl = rd32(E1000_RCTL);
rctl |= E1000_RCTL_LBM_TCVR;
wr32(E1000_RCTL, rctl);
reg = rd32(E1000_RCTL);
reg |= E1000_RCTL_LBM_TCVR;
wr32(E1000_RCTL, reg);
wr32(E1000_SCTL, E1000_ENABLE_SERDES_LOOPBACK);
reg = rd32(E1000_CTRL);
reg &= ~(E1000_CTRL_RFCE |
E1000_CTRL_TFCE |
E1000_CTRL_LRST);
reg |= E1000_CTRL_SLU |
E1000_CTRL_FD;
wr32(E1000_CTRL, reg);
/* Unset switch control to serdes energy detect */
reg = rd32(E1000_CONNSW);
reg &= ~E1000_CONNSW_ENRGSRC;
wr32(E1000_CONNSW, reg);
/* Set PCS register for forced speed */
reg = rd32(E1000_PCS_LCTL);
reg &= ~E1000_PCS_LCTL_AN_ENABLE; /* Disable Autoneg*/
reg |= E1000_PCS_LCTL_FLV_LINK_UP | /* Force link up */
E1000_PCS_LCTL_FSV_1000 | /* Force 1000 */
E1000_PCS_LCTL_FDV_FULL | /* SerDes Full duplex */
E1000_PCS_LCTL_FSD | /* Force Speed */
E1000_PCS_LCTL_FORCE_LINK; /* Force Link */
wr32(E1000_PCS_LCTL, reg);
return 0;
} else if (hw->phy.media_type == e1000_media_type_copper) {
return igb_set_phy_loopback(adapter);
@ -1654,10 +1727,13 @@ static int igb_wol_exclusion(struct igb_adapter *adapter,
switch (hw->device_id) {
case E1000_DEV_ID_82575GB_QUAD_COPPER:
case E1000_DEV_ID_82576_QUAD_COPPER:
/* WoL not supported */
wol->supported = 0;
break;
case E1000_DEV_ID_82575EB_FIBER_SERDES:
case E1000_DEV_ID_82576_FIBER:
case E1000_DEV_ID_82576_SERDES:
/* Wake events not supported on port B */
if (rd32(E1000_STATUS) & E1000_STATUS_FUNC_1) {
wol->supported = 0;

170
drivers/net/igb/igb_main.c
View File

@ -51,7 +51,7 @@ char igb_driver_name[] = "igb";
char igb_driver_version[] = DRV_VERSION;
static const char igb_driver_string[] =
"Intel(R) Gigabit Ethernet Network Driver";
static const char igb_copyright[] = "Copyright (c) 2007 Intel Corporation.";
static const char igb_copyright[] = "Copyright (c) 2008 Intel Corporation.";
static const struct e1000_info *igb_info_tbl[] = {
@ -59,6 +59,10 @@ static const struct e1000_info *igb_info_tbl[] = {
};
static struct pci_device_id igb_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_FIBER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_COPPER), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_FIBER_SERDES), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575GB_QUAD_COPPER), board_82575 },
@ -268,6 +272,10 @@ static void igb_assign_vector(struct igb_adapter *adapter, int rx_queue,
{
u32 msixbm = 0;
struct e1000_hw *hw = &adapter->hw;
u32 ivar, index;
switch (hw->mac.type) {
case e1000_82575:
/* The 82575 assigns vectors using a bitmask, which matches the
bitmask for the EICR/EIMS/EIMC registers. To assign one
or more queues to a vector, we write the appropriate bits
@ -282,6 +290,47 @@ static void igb_assign_vector(struct igb_adapter *adapter, int rx_queue,
E1000_EICR_TX_QUEUE0 << tx_queue;
}
array_wr32(E1000_MSIXBM(0), msix_vector, msixbm);
break;
case e1000_82576:
/* Kawela uses a table-based method for assigning vectors.
Each queue has a single entry in the table to which we write
a vector number along with a "valid" bit. Sadly, the layout
of the table is somewhat counterintuitive. */
if (rx_queue > IGB_N0_QUEUE) {
index = (rx_queue & 0x7);
ivar = array_rd32(E1000_IVAR0, index);
if (rx_queue < 8) {
/* vector goes into low byte of register */
ivar = ivar & 0xFFFFFF00;
ivar |= msix_vector | E1000_IVAR_VALID;
} else {
/* vector goes into third byte of register */
ivar = ivar & 0xFF00FFFF;
ivar |= (msix_vector | E1000_IVAR_VALID) << 16;
}
adapter->rx_ring[rx_queue].eims_value= 1 << msix_vector;
array_wr32(E1000_IVAR0, index, ivar);
}
if (tx_queue > IGB_N0_QUEUE) {
index = (tx_queue & 0x7);
ivar = array_rd32(E1000_IVAR0, index);
if (tx_queue < 8) {
/* vector goes into second byte of register */
ivar = ivar & 0xFFFF00FF;
ivar |= (msix_vector | E1000_IVAR_VALID) << 8;
} else {
/* vector goes into high byte of register */
ivar = ivar & 0x00FFFFFF;
ivar |= (msix_vector | E1000_IVAR_VALID) << 24;
}
adapter->tx_ring[tx_queue].eims_value= 1 << msix_vector;
array_wr32(E1000_IVAR0, index, ivar);
}
break;
default:
BUG();
break;
}
}
/**
@ -297,6 +346,12 @@ static void igb_configure_msix(struct igb_adapter *adapter)
struct e1000_hw *hw = &adapter->hw;
adapter->eims_enable_mask = 0;
if (hw->mac.type == e1000_82576)
/* Turn on MSI-X capability first, or our settings
* won't stick. And it will take days to debug. */
wr32(E1000_GPIE, E1000_GPIE_MSIX_MODE |
E1000_GPIE_PBA | E1000_GPIE_EIAME |
E1000_GPIE_NSICR);
for (i = 0; i < adapter->num_tx_queues; i++) {
struct igb_ring *tx_ring = &adapter->tx_ring[i];
@ -322,6 +377,8 @@ static void igb_configure_msix(struct igb_adapter *adapter)
/* set vector for other causes, i.e. link changes */
switch (hw->mac.type) {
case e1000_82575:
array_wr32(E1000_MSIXBM(0), vector++,
E1000_EIMS_OTHER);
@ -337,6 +394,19 @@ static void igb_configure_msix(struct igb_adapter *adapter)
adapter->eims_enable_mask |= E1000_EIMS_OTHER;
adapter->eims_other = E1000_EIMS_OTHER;
break;
case e1000_82576:
tmp = (vector++ | E1000_IVAR_VALID) << 8;
wr32(E1000_IVAR_MISC, tmp);
adapter->eims_enable_mask = (1 << (vector)) - 1;
adapter->eims_other = 1 << (vector - 1);
break;
default:
/* do nothing, since nothing else supports MSI-X */
break;
} /* switch (hw->mac.type) */
wrfl();
}
@ -474,8 +544,17 @@ static int igb_request_irq(struct igb_adapter *adapter)
adapter->num_rx_queues = 1;
igb_alloc_queues(adapter);
} else {
wr32(E1000_MSIXBM(0), (E1000_EICR_RX_QUEUE0 |
E1000_EIMS_OTHER));
switch (hw->mac.type) {
case e1000_82575:
wr32(E1000_MSIXBM(0),
(E1000_EICR_RX_QUEUE0 | E1000_EIMS_OTHER));
break;
case e1000_82576:
wr32(E1000_IVAR0, E1000_IVAR_VALID);
break;
default:
break;
}
}
if (adapter->msi_enabled) {
@ -770,16 +849,23 @@ void igb_reinit_locked(struct igb_adapter *adapter)
void igb_reset(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
struct e1000_fc_info *fc = &adapter->hw.fc;
struct e1000_mac_info *mac = &hw->mac;
struct e1000_fc_info *fc = &hw->fc;
u32 pba = 0, tx_space, min_tx_space, min_rx_space;
u16 hwm;
/* Repartition Pba for greater than 9k mtu
* To take effect CTRL.RST is required.
*/
if (mac->type != e1000_82576) {
pba = E1000_PBA_34K;
}
else {
pba = E1000_PBA_64K;
}
if (adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) {
if ((adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) &&
(mac->type < e1000_82576)) {
/* adjust PBA for jumbo frames */
wr32(E1000_PBA, pba);
@ -818,8 +904,8 @@ void igb_reset(struct igb_adapter *adapter)
if (pba < min_rx_space)
pba = min_rx_space;
}
wr32(E1000_PBA, pba);
}
wr32(E1000_PBA, pba);
/* flow control settings */
/* The high water mark must be low enough to fit one full frame
@ -828,10 +914,15 @@ void igb_reset(struct igb_adapter *adapter)
* - 90% of the Rx FIFO size, or
* - the full Rx FIFO size minus one full frame */
hwm = min(((pba << 10) * 9 / 10),
((pba << 10) - adapter->max_frame_size));
((pba << 10) - 2 * adapter->max_frame_size));
fc->high_water = hwm & 0xFFF8; /* 8-byte granularity */
fc->low_water = fc->high_water - 8;
if (mac->type < e1000_82576) {
fc->high_water = hwm & 0xFFF8; /* 8-byte granularity */
fc->low_water = fc->high_water - 8;
} else {
fc->high_water = hwm & 0xFFF0; /* 16-byte granularity */
fc->low_water = fc->high_water - 16;
}
fc->pause_time = 0xFFFF;
fc->send_xon = 1;
fc->type = fc->original_type;
@ -1118,9 +1209,12 @@ static int __devinit igb_probe(struct pci_dev *pdev,
* lan on a particular port */
switch (pdev->device) {
case E1000_DEV_ID_82575GB_QUAD_COPPER:
case E1000_DEV_ID_82576_QUAD_COPPER:
adapter->eeprom_wol = 0;
break;
case E1000_DEV_ID_82575EB_FIBER_SERDES:
case E1000_DEV_ID_82576_FIBER:
case E1000_DEV_ID_82576_SERDES:
/* Wake events only supported on port A for dual fiber
* regardless of eeprom setting */
if (rd32(E1000_STATUS) & E1000_STATUS_FUNC_1)
@ -1801,7 +1895,10 @@ static void igb_configure_rx(struct igb_adapter *adapter)
get_random_bytes(&random[0], 40);
shift = 6;
if (hw->mac.type >= e1000_82576)
shift = 0;
else
shift = 6;
for (j = 0; j < (32 * 4); j++) {
reta.bytes[j & 3] =
(j % adapter->num_rx_queues) << shift;
@ -2127,7 +2224,7 @@ static void igb_set_multi(struct net_device *netdev)
if (!netdev->mc_count) {
/* nothing to program, so clear mc list */
igb_update_mc_addr_list(hw, NULL, 0, 1,
igb_update_mc_addr_list_82575(hw, NULL, 0, 1,
mac->rar_entry_count);
return;
}
@ -2145,7 +2242,8 @@ static void igb_set_multi(struct net_device *netdev)
memcpy(mta_list + (i*ETH_ALEN), mc_ptr->dmi_addr, ETH_ALEN);
mc_ptr = mc_ptr->next;
}
igb_update_mc_addr_list(hw, mta_list, i, 1, mac->rar_entry_count);
igb_update_mc_addr_list_82575(hw, mta_list, i, 1,
mac->rar_entry_count);
kfree(mta_list);
}
@ -3211,8 +3309,14 @@ static void igb_update_rx_dca(struct igb_ring *rx_ring)
if (rx_ring->cpu != cpu) {
dca_rxctrl = rd32(E1000_DCA_RXCTRL(q));
dca_rxctrl &= ~E1000_DCA_RXCTRL_CPUID_MASK;
dca_rxctrl |= dca_get_tag(cpu);
if (hw->mac.type == e1000_82576) {
dca_rxctrl &= ~E1000_DCA_RXCTRL_CPUID_MASK_82576;
dca_rxctrl |= dca_get_tag(cpu) <<
E1000_DCA_RXCTRL_CPUID_SHIFT;
} else {
dca_rxctrl &= ~E1000_DCA_RXCTRL_CPUID_MASK;
dca_rxctrl |= dca_get_tag(cpu);
}
dca_rxctrl |= E1000_DCA_RXCTRL_DESC_DCA_EN;
dca_rxctrl |= E1000_DCA_RXCTRL_HEAD_DCA_EN;
dca_rxctrl |= E1000_DCA_RXCTRL_DATA_DCA_EN;
@ -3232,8 +3336,14 @@ static void igb_update_tx_dca(struct igb_ring *tx_ring)
if (tx_ring->cpu != cpu) {
dca_txctrl = rd32(E1000_DCA_TXCTRL(q));
dca_txctrl &= ~E1000_DCA_TXCTRL_CPUID_MASK;
dca_txctrl |= dca_get_tag(cpu);
if (hw->mac.type == e1000_82576) {
dca_txctrl &= ~E1000_DCA_TXCTRL_CPUID_MASK_82576;
dca_txctrl |= dca_get_tag(cpu) <<
E1000_DCA_TXCTRL_CPUID_SHIFT;
} else {
dca_txctrl &= ~E1000_DCA_TXCTRL_CPUID_MASK;
dca_txctrl |= dca_get_tag(cpu);
}
dca_txctrl |= E1000_DCA_TXCTRL_DESC_DCA_EN;
wr32(E1000_DCA_TXCTRL(q), dca_txctrl);
tx_ring->cpu = cpu;
@ -3572,7 +3682,7 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
/* detected Tx unit hang */
dev_err(&adapter->pdev->dev,
"Detected Tx Unit Hang\n"
" Tx Queue <%lu>\n"
" Tx Queue <%d>\n"
" TDH <%x>\n"
" TDT <%x>\n"
" next_to_use <%x>\n"
@ -3582,8 +3692,7 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
" time_stamp <%lx>\n"
" jiffies <%lx>\n"
" desc.status <%x>\n",
(unsigned long)((tx_ring - adapter->tx_ring) /
sizeof(struct igb_ring)),
tx_ring->queue_index,
readl(adapter->hw.hw_addr + tx_ring->head),
readl(adapter->hw.hw_addr + tx_ring->tail),
tx_ring->next_to_use,
@ -4098,7 +4207,7 @@ static int igb_suspend(struct pci_dev *pdev, pm_message_t state)
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
u32 ctrl, ctrl_ext, rctl, status;
u32 ctrl, rctl, status;
u32 wufc = adapter->wol;
#ifdef CONFIG_PM
int retval = 0;
@ -4141,33 +4250,24 @@ static int igb_suspend(struct pci_dev *pdev, pm_message_t state)
ctrl |= E1000_CTRL_ADVD3WUC;
wr32(E1000_CTRL, ctrl);
if (adapter->hw.phy.media_type == e1000_media_type_fiber ||
adapter->hw.phy.media_type ==
e1000_media_type_internal_serdes) {
/* keep the laser running in D3 */
ctrl_ext = rd32(E1000_CTRL_EXT);
ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA;
wr32(E1000_CTRL_EXT, ctrl_ext);
}
/* Allow time for pending master requests to run */
igb_disable_pcie_master(&adapter->hw);
wr32(E1000_WUC, E1000_WUC_PME_EN);
wr32(E1000_WUFC, wufc);
pci_enable_wake(pdev, PCI_D3hot, 1);
pci_enable_wake(pdev, PCI_D3cold, 1);
} else {
wr32(E1000_WUC, 0);
wr32(E1000_WUFC, 0);
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
}
/* make sure adapter isn't asleep if manageability is enabled */
if (adapter->en_mng_pt) {
/* make sure adapter isn't asleep if manageability/wol is enabled */
if (wufc || adapter->en_mng_pt) {
pci_enable_wake(pdev, PCI_D3hot, 1);
pci_enable_wake(pdev, PCI_D3cold, 1);
} else {
igb_shutdown_fiber_serdes_link_82575(hw);
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
}
/* Release control of h/w to f/w. If f/w is AMT enabled, this