2 * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
3 * Copyright(c) 2006 - 2007 Chris Snook <csnook@redhat.com>
4 * Copyright(c) 2006 - 2008 Jay Cliburn <jcliburn@gmail.com>
6 * Derived from Intel e1000 driver
7 * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the Free
11 * Software Foundation; either version 2 of the License, or (at your option)
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * You should have received a copy of the GNU General Public License along with
20 * this program; if not, write to the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 * The full GNU General Public License is included in this distribution in the
24 * file called COPYING.
26 * Contact Information:
27 * Xiong Huang <xiong.huang@atheros.com>
28 * Jie Yang <jie.yang@atheros.com>
29 * Chris Snook <csnook@redhat.com>
30 * Jay Cliburn <jcliburn@gmail.com>
32 * This version is adapted from the Attansic reference driver.
35 * Add more ethtool functions.
36 * Fix abstruse irq enable/disable condition described here:
37 * http://marc.theaimsgroup.com/?l=linux-netdev&m=116398508500553&w=2
43 * interrupt coalescing
47 #include <linux/atomic.h>
48 #include <asm/byteorder.h>
50 #include <linux/compiler.h>
51 #include <linux/crc32.h>
52 #include <linux/delay.h>
53 #include <linux/dma-mapping.h>
54 #include <linux/etherdevice.h>
55 #include <linux/hardirq.h>
56 #include <linux/if_ether.h>
57 #include <linux/if_vlan.h>
59 #include <linux/interrupt.h>
61 #include <linux/irqflags.h>
62 #include <linux/irqreturn.h>
63 #include <linux/jiffies.h>
64 #include <linux/mii.h>
65 #include <linux/module.h>
66 #include <linux/moduleparam.h>
67 #include <linux/net.h>
68 #include <linux/netdevice.h>
69 #include <linux/pci.h>
70 #include <linux/pci_ids.h>
72 #include <linux/skbuff.h>
73 #include <linux/slab.h>
74 #include <linux/spinlock.h>
75 #include <linux/string.h>
76 #include <linux/tcp.h>
77 #include <linux/timer.h>
78 #include <linux/types.h>
79 #include <linux/workqueue.h>
81 #include <net/checksum.h>
85 #define ATLX_DRIVER_VERSION "2.1.3"
86 MODULE_AUTHOR("Xiong Huang <xiong.huang@atheros.com>, "
87 "Chris Snook <csnook@redhat.com>, "
88 "Jay Cliburn <jcliburn@gmail.com>");
89 MODULE_LICENSE("GPL");
90 MODULE_VERSION(ATLX_DRIVER_VERSION);
92 /* Temporary hack for merging atl1 and atl2 */
95 static const struct ethtool_ops atl1_ethtool_ops;
98 * This is the only thing that needs to be changed to adjust the
99 * maximum number of ports that the driver can manage.
101 #define ATL1_MAX_NIC 4
103 #define OPTION_UNSET -1
104 #define OPTION_DISABLED 0
105 #define OPTION_ENABLED 1
107 #define ATL1_PARAM_INIT { [0 ... ATL1_MAX_NIC] = OPTION_UNSET }
110 * Interrupt Moderate Timer in units of 2 us
112 * Valid Range: 10-65535
114 * Default Value: 100 (200us)
116 static int __devinitdata int_mod_timer[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
117 static unsigned int num_int_mod_timer;
118 module_param_array_named(int_mod_timer, int_mod_timer, int,
119 &num_int_mod_timer, 0);
120 MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer");
122 #define DEFAULT_INT_MOD_CNT 100 /* 200us */
123 #define MAX_INT_MOD_CNT 65000
124 #define MIN_INT_MOD_CNT 50
127 enum { enable_option, range_option, list_option } type;
132 struct { /* range_option info */
136 struct { /* list_option info */
138 struct atl1_opt_list {
146 static int __devinit atl1_validate_option(int *value, struct atl1_option *opt,
147 struct pci_dev *pdev)
149 if (*value == OPTION_UNSET) {
158 dev_info(&pdev->dev, "%s enabled\n", opt->name);
160 case OPTION_DISABLED:
161 dev_info(&pdev->dev, "%s disabled\n", opt->name);
166 if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
167 dev_info(&pdev->dev, "%s set to %i\n", opt->name,
174 struct atl1_opt_list *ent;
176 for (i = 0; i < opt->arg.l.nr; i++) {
177 ent = &opt->arg.l.p[i];
178 if (*value == ent->i) {
179 if (ent->str[0] != '\0')
180 dev_info(&pdev->dev, "%s\n",
192 dev_info(&pdev->dev, "invalid %s specified (%i) %s\n",
193 opt->name, *value, opt->err);
199 * atl1_check_options - Range Checking for Command Line Parameters
200 * @adapter: board private structure
202 * This routine checks all command line parameters for valid user
203 * input. If an invalid value is given, or if no user specified
204 * value exists, a default value is used. The final value is stored
205 * in a variable in the adapter structure.
207 static void __devinit atl1_check_options(struct atl1_adapter *adapter)
209 struct pci_dev *pdev = adapter->pdev;
210 int bd = adapter->bd_number;
211 if (bd >= ATL1_MAX_NIC) {
212 dev_notice(&pdev->dev, "no configuration for board#%i\n", bd);
213 dev_notice(&pdev->dev, "using defaults for all values\n");
215 { /* Interrupt Moderate Timer */
216 struct atl1_option opt = {
217 .type = range_option,
218 .name = "Interrupt Moderator Timer",
219 .err = "using default of "
220 __MODULE_STRING(DEFAULT_INT_MOD_CNT),
221 .def = DEFAULT_INT_MOD_CNT,
222 .arg = {.r = {.min = MIN_INT_MOD_CNT,
223 .max = MAX_INT_MOD_CNT} }
226 if (num_int_mod_timer > bd) {
227 val = int_mod_timer[bd];
228 atl1_validate_option(&val, &opt, pdev);
229 adapter->imt = (u16) val;
231 adapter->imt = (u16) (opt.def);
236 * atl1_pci_tbl - PCI Device ID Table
238 static DEFINE_PCI_DEVICE_TABLE(atl1_pci_tbl) = {
239 {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L1)},
240 /* required last entry */
243 MODULE_DEVICE_TABLE(pci, atl1_pci_tbl);
245 static const u32 atl1_default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE |
246 NETIF_MSG_LINK | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP;
248 static int debug = -1;
249 module_param(debug, int, 0);
250 MODULE_PARM_DESC(debug, "Message level (0=none,...,16=all)");
253 * Reset the transmit and receive units; mask and clear all interrupts.
254 * hw - Struct containing variables accessed by shared code
255 * return : 0 or idle status (if error)
257 static s32 atl1_reset_hw(struct atl1_hw *hw)
259 struct pci_dev *pdev = hw->back->pdev;
260 struct atl1_adapter *adapter = hw->back;
265 * Clear Interrupt mask to stop board from generating
266 * interrupts & Clear any pending interrupt events
269 * iowrite32(0, hw->hw_addr + REG_IMR);
270 * iowrite32(0xffffffff, hw->hw_addr + REG_ISR);
274 * Issue Soft Reset to the MAC. This will reset the chip's
275 * transmit, receive, DMA. It will not effect
276 * the current PCI configuration. The global reset bit is self-
277 * clearing, and should clear within a microsecond.
279 iowrite32(MASTER_CTRL_SOFT_RST, hw->hw_addr + REG_MASTER_CTRL);
280 ioread32(hw->hw_addr + REG_MASTER_CTRL);
282 iowrite16(1, hw->hw_addr + REG_PHY_ENABLE);
283 ioread16(hw->hw_addr + REG_PHY_ENABLE);
285 /* delay about 1ms */
288 /* Wait at least 10ms for All module to be Idle */
289 for (i = 0; i < 10; i++) {
290 icr = ioread32(hw->hw_addr + REG_IDLE_STATUS);
295 /* FIXME: still the right way to do this? */
300 if (netif_msg_hw(adapter))
301 dev_dbg(&pdev->dev, "ICR = 0x%x\n", icr);
308 /* function about EEPROM
311 * return 0 if eeprom exist
313 static int atl1_check_eeprom_exist(struct atl1_hw *hw)
316 value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
317 if (value & SPI_FLASH_CTRL_EN_VPD) {
318 value &= ~SPI_FLASH_CTRL_EN_VPD;
319 iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
322 value = ioread16(hw->hw_addr + REG_PCIE_CAP_LIST);
323 return ((value & 0xFF00) == 0x6C00) ? 0 : 1;
326 static bool atl1_read_eeprom(struct atl1_hw *hw, u32 offset, u32 *p_value)
332 /* address do not align */
335 iowrite32(0, hw->hw_addr + REG_VPD_DATA);
336 control = (offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT;
337 iowrite32(control, hw->hw_addr + REG_VPD_CAP);
338 ioread32(hw->hw_addr + REG_VPD_CAP);
340 for (i = 0; i < 10; i++) {
342 control = ioread32(hw->hw_addr + REG_VPD_CAP);
343 if (control & VPD_CAP_VPD_FLAG)
346 if (control & VPD_CAP_VPD_FLAG) {
347 *p_value = ioread32(hw->hw_addr + REG_VPD_DATA);
355 * Reads the value from a PHY register
356 * hw - Struct containing variables accessed by shared code
357 * reg_addr - address of the PHY register to read
359 static s32 atl1_read_phy_reg(struct atl1_hw *hw, u16 reg_addr, u16 *phy_data)
364 val = ((u32) (reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT |
365 MDIO_START | MDIO_SUP_PREAMBLE | MDIO_RW | MDIO_CLK_25_4 <<
367 iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
368 ioread32(hw->hw_addr + REG_MDIO_CTRL);
370 for (i = 0; i < MDIO_WAIT_TIMES; i++) {
372 val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
373 if (!(val & (MDIO_START | MDIO_BUSY)))
376 if (!(val & (MDIO_START | MDIO_BUSY))) {
377 *phy_data = (u16) val;
383 #define CUSTOM_SPI_CS_SETUP 2
384 #define CUSTOM_SPI_CLK_HI 2
385 #define CUSTOM_SPI_CLK_LO 2
386 #define CUSTOM_SPI_CS_HOLD 2
387 #define CUSTOM_SPI_CS_HI 3
389 static bool atl1_spi_read(struct atl1_hw *hw, u32 addr, u32 *buf)
394 iowrite32(0, hw->hw_addr + REG_SPI_DATA);
395 iowrite32(addr, hw->hw_addr + REG_SPI_ADDR);
397 value = SPI_FLASH_CTRL_WAIT_READY |
398 (CUSTOM_SPI_CS_SETUP & SPI_FLASH_CTRL_CS_SETUP_MASK) <<
399 SPI_FLASH_CTRL_CS_SETUP_SHIFT | (CUSTOM_SPI_CLK_HI &
400 SPI_FLASH_CTRL_CLK_HI_MASK) <<
401 SPI_FLASH_CTRL_CLK_HI_SHIFT | (CUSTOM_SPI_CLK_LO &
402 SPI_FLASH_CTRL_CLK_LO_MASK) <<
403 SPI_FLASH_CTRL_CLK_LO_SHIFT | (CUSTOM_SPI_CS_HOLD &
404 SPI_FLASH_CTRL_CS_HOLD_MASK) <<
405 SPI_FLASH_CTRL_CS_HOLD_SHIFT | (CUSTOM_SPI_CS_HI &
406 SPI_FLASH_CTRL_CS_HI_MASK) <<
407 SPI_FLASH_CTRL_CS_HI_SHIFT | (1 & SPI_FLASH_CTRL_INS_MASK) <<
408 SPI_FLASH_CTRL_INS_SHIFT;
410 iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
412 value |= SPI_FLASH_CTRL_START;
413 iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
414 ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
416 for (i = 0; i < 10; i++) {
418 value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
419 if (!(value & SPI_FLASH_CTRL_START))
423 if (value & SPI_FLASH_CTRL_START)
426 *buf = ioread32(hw->hw_addr + REG_SPI_DATA);
432 * get_permanent_address
433 * return 0 if get valid mac address,
435 static int atl1_get_permanent_address(struct atl1_hw *hw)
440 u8 eth_addr[ETH_ALEN];
443 if (is_valid_ether_addr(hw->perm_mac_addr))
447 addr[0] = addr[1] = 0;
449 if (!atl1_check_eeprom_exist(hw)) {
452 /* Read out all EEPROM content */
455 if (atl1_read_eeprom(hw, i + 0x100, &control)) {
457 if (reg == REG_MAC_STA_ADDR)
459 else if (reg == (REG_MAC_STA_ADDR + 4))
462 } else if ((control & 0xff) == 0x5A) {
464 reg = (u16) (control >> 16);
473 *(u32 *) ð_addr[2] = swab32(addr[0]);
474 *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]);
475 if (is_valid_ether_addr(eth_addr)) {
476 memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
481 /* see if SPI FLAGS exist ? */
482 addr[0] = addr[1] = 0;
487 if (atl1_spi_read(hw, i + 0x1f000, &control)) {
489 if (reg == REG_MAC_STA_ADDR)
491 else if (reg == (REG_MAC_STA_ADDR + 4))
494 } else if ((control & 0xff) == 0x5A) {
496 reg = (u16) (control >> 16);
506 *(u32 *) ð_addr[2] = swab32(addr[0]);
507 *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]);
508 if (is_valid_ether_addr(eth_addr)) {
509 memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
514 * On some motherboards, the MAC address is written by the
515 * BIOS directly to the MAC register during POST, and is
516 * not stored in eeprom. If all else thus far has failed
517 * to fetch the permanent MAC address, try reading it directly.
519 addr[0] = ioread32(hw->hw_addr + REG_MAC_STA_ADDR);
520 addr[1] = ioread16(hw->hw_addr + (REG_MAC_STA_ADDR + 4));
521 *(u32 *) ð_addr[2] = swab32(addr[0]);
522 *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]);
523 if (is_valid_ether_addr(eth_addr)) {
524 memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
532 * Reads the adapter's MAC address from the EEPROM
533 * hw - Struct containing variables accessed by shared code
535 static s32 atl1_read_mac_addr(struct atl1_hw *hw)
540 if (atl1_get_permanent_address(hw)) {
541 random_ether_addr(hw->perm_mac_addr);
545 for (i = 0; i < ETH_ALEN; i++)
546 hw->mac_addr[i] = hw->perm_mac_addr[i];
551 * Hashes an address to determine its location in the multicast table
552 * hw - Struct containing variables accessed by shared code
553 * mc_addr - the multicast address to hash
557 * set hash value for a multicast address
558 * hash calcu processing :
559 * 1. calcu 32bit CRC for multicast address
560 * 2. reverse crc with MSB to LSB
562 static u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr)
564 u32 crc32, value = 0;
567 crc32 = ether_crc_le(6, mc_addr);
568 for (i = 0; i < 32; i++)
569 value |= (((crc32 >> i) & 1) << (31 - i));
575 * Sets the bit in the multicast table corresponding to the hash value.
576 * hw - Struct containing variables accessed by shared code
577 * hash_value - Multicast address hash value
579 static void atl1_hash_set(struct atl1_hw *hw, u32 hash_value)
581 u32 hash_bit, hash_reg;
585 * The HASH Table is a register array of 2 32-bit registers.
586 * It is treated like an array of 64 bits. We want to set
587 * bit BitArray[hash_value]. So we figure out what register
588 * the bit is in, read it, OR in the new bit, then write
589 * back the new value. The register is determined by the
590 * upper 7 bits of the hash value and the bit within that
591 * register are determined by the lower 5 bits of the value.
593 hash_reg = (hash_value >> 31) & 0x1;
594 hash_bit = (hash_value >> 26) & 0x1F;
595 mta = ioread32((hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2));
596 mta |= (1 << hash_bit);
597 iowrite32(mta, (hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2));
601 * Writes a value to a PHY register
602 * hw - Struct containing variables accessed by shared code
603 * reg_addr - address of the PHY register to write
604 * data - data to write to the PHY
606 static s32 atl1_write_phy_reg(struct atl1_hw *hw, u32 reg_addr, u16 phy_data)
611 val = ((u32) (phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT |
612 (reg_addr & MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT |
614 MDIO_START | MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT;
615 iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
616 ioread32(hw->hw_addr + REG_MDIO_CTRL);
618 for (i = 0; i < MDIO_WAIT_TIMES; i++) {
620 val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
621 if (!(val & (MDIO_START | MDIO_BUSY)))
625 if (!(val & (MDIO_START | MDIO_BUSY)))
632 * Make L001's PHY out of Power Saving State (bug)
633 * hw - Struct containing variables accessed by shared code
634 * when power on, L001's PHY always on Power saving State
635 * (Gigabit Link forbidden)
637 static s32 atl1_phy_leave_power_saving(struct atl1_hw *hw)
640 ret = atl1_write_phy_reg(hw, 29, 0x0029);
643 return atl1_write_phy_reg(hw, 30, 0);
647 * Resets the PHY and make all config validate
648 * hw - Struct containing variables accessed by shared code
650 * Sets bit 15 and 12 of the MII Control regiser (for F001 bug)
652 static s32 atl1_phy_reset(struct atl1_hw *hw)
654 struct pci_dev *pdev = hw->back->pdev;
655 struct atl1_adapter *adapter = hw->back;
659 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
660 hw->media_type == MEDIA_TYPE_1000M_FULL)
661 phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
663 switch (hw->media_type) {
664 case MEDIA_TYPE_100M_FULL:
666 MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
669 case MEDIA_TYPE_100M_HALF:
670 phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
672 case MEDIA_TYPE_10M_FULL:
674 MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
677 /* MEDIA_TYPE_10M_HALF: */
678 phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
683 ret_val = atl1_write_phy_reg(hw, MII_BMCR, phy_data);
687 /* pcie serdes link may be down! */
688 if (netif_msg_hw(adapter))
689 dev_dbg(&pdev->dev, "pcie phy link down\n");
691 for (i = 0; i < 25; i++) {
693 val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
694 if (!(val & (MDIO_START | MDIO_BUSY)))
698 if ((val & (MDIO_START | MDIO_BUSY)) != 0) {
699 if (netif_msg_hw(adapter))
701 "pcie link down at least 25ms\n");
709 * Configures PHY autoneg and flow control advertisement settings
710 * hw - Struct containing variables accessed by shared code
712 static s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw)
715 s16 mii_autoneg_adv_reg;
716 s16 mii_1000t_ctrl_reg;
718 /* Read the MII Auto-Neg Advertisement Register (Address 4). */
719 mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK;
721 /* Read the MII 1000Base-T Control Register (Address 9). */
722 mii_1000t_ctrl_reg = MII_ATLX_CR_1000T_DEFAULT_CAP_MASK;
725 * First we clear all the 10/100 mb speed bits in the Auto-Neg
726 * Advertisement Register (Address 4) and the 1000 mb speed bits in
727 * the 1000Base-T Control Register (Address 9).
729 mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK;
730 mii_1000t_ctrl_reg &= ~MII_ATLX_CR_1000T_SPEED_MASK;
733 * Need to parse media_type and set up
734 * the appropriate PHY registers.
736 switch (hw->media_type) {
737 case MEDIA_TYPE_AUTO_SENSOR:
738 mii_autoneg_adv_reg |= (MII_AR_10T_HD_CAPS |
740 MII_AR_100TX_HD_CAPS |
741 MII_AR_100TX_FD_CAPS);
742 mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS;
745 case MEDIA_TYPE_1000M_FULL:
746 mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS;
749 case MEDIA_TYPE_100M_FULL:
750 mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS;
753 case MEDIA_TYPE_100M_HALF:
754 mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS;
757 case MEDIA_TYPE_10M_FULL:
758 mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS;
762 mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS;
766 /* flow control fixed to enable all */
767 mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE);
769 hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg;
770 hw->mii_1000t_ctrl_reg = mii_1000t_ctrl_reg;
772 ret_val = atl1_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg);
776 ret_val = atl1_write_phy_reg(hw, MII_ATLX_CR, mii_1000t_ctrl_reg);
784 * Configures link settings.
785 * hw - Struct containing variables accessed by shared code
786 * Assumes the hardware has previously been reset and the
787 * transmitter and receiver are not enabled.
789 static s32 atl1_setup_link(struct atl1_hw *hw)
791 struct pci_dev *pdev = hw->back->pdev;
792 struct atl1_adapter *adapter = hw->back;
797 * PHY will advertise value(s) parsed from
798 * autoneg_advertised and fc
799 * no matter what autoneg is , We will not wait link result.
801 ret_val = atl1_phy_setup_autoneg_adv(hw);
803 if (netif_msg_link(adapter))
805 "error setting up autonegotiation\n");
808 /* SW.Reset , En-Auto-Neg if needed */
809 ret_val = atl1_phy_reset(hw);
811 if (netif_msg_link(adapter))
812 dev_dbg(&pdev->dev, "error resetting phy\n");
815 hw->phy_configured = true;
819 static void atl1_init_flash_opcode(struct atl1_hw *hw)
821 if (hw->flash_vendor >= ARRAY_SIZE(flash_table))
823 hw->flash_vendor = 0;
826 iowrite8(flash_table[hw->flash_vendor].cmd_program,
827 hw->hw_addr + REG_SPI_FLASH_OP_PROGRAM);
828 iowrite8(flash_table[hw->flash_vendor].cmd_sector_erase,
829 hw->hw_addr + REG_SPI_FLASH_OP_SC_ERASE);
830 iowrite8(flash_table[hw->flash_vendor].cmd_chip_erase,
831 hw->hw_addr + REG_SPI_FLASH_OP_CHIP_ERASE);
832 iowrite8(flash_table[hw->flash_vendor].cmd_rdid,
833 hw->hw_addr + REG_SPI_FLASH_OP_RDID);
834 iowrite8(flash_table[hw->flash_vendor].cmd_wren,
835 hw->hw_addr + REG_SPI_FLASH_OP_WREN);
836 iowrite8(flash_table[hw->flash_vendor].cmd_rdsr,
837 hw->hw_addr + REG_SPI_FLASH_OP_RDSR);
838 iowrite8(flash_table[hw->flash_vendor].cmd_wrsr,
839 hw->hw_addr + REG_SPI_FLASH_OP_WRSR);
840 iowrite8(flash_table[hw->flash_vendor].cmd_read,
841 hw->hw_addr + REG_SPI_FLASH_OP_READ);
845 * Performs basic configuration of the adapter.
846 * hw - Struct containing variables accessed by shared code
847 * Assumes that the controller has previously been reset and is in a
848 * post-reset uninitialized state. Initializes multicast table,
849 * and Calls routines to setup link
850 * Leaves the transmit and receive units disabled and uninitialized.
852 static s32 atl1_init_hw(struct atl1_hw *hw)
856 /* Zero out the Multicast HASH table */
857 iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
858 /* clear the old settings from the multicast hash table */
859 iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
861 atl1_init_flash_opcode(hw);
863 if (!hw->phy_configured) {
864 /* enable GPHY LinkChange Interrupt */
865 ret_val = atl1_write_phy_reg(hw, 18, 0xC00);
868 /* make PHY out of power-saving state */
869 ret_val = atl1_phy_leave_power_saving(hw);
872 /* Call a subroutine to configure the link */
873 ret_val = atl1_setup_link(hw);
879 * Detects the current speed and duplex settings of the hardware.
880 * hw - Struct containing variables accessed by shared code
881 * speed - Speed of the connection
882 * duplex - Duplex setting of the connection
884 static s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex)
886 struct pci_dev *pdev = hw->back->pdev;
887 struct atl1_adapter *adapter = hw->back;
891 /* ; --- Read PHY Specific Status Register (17) */
892 ret_val = atl1_read_phy_reg(hw, MII_ATLX_PSSR, &phy_data);
896 if (!(phy_data & MII_ATLX_PSSR_SPD_DPLX_RESOLVED))
897 return ATLX_ERR_PHY_RES;
899 switch (phy_data & MII_ATLX_PSSR_SPEED) {
900 case MII_ATLX_PSSR_1000MBS:
903 case MII_ATLX_PSSR_100MBS:
906 case MII_ATLX_PSSR_10MBS:
910 if (netif_msg_hw(adapter))
911 dev_dbg(&pdev->dev, "error getting speed\n");
912 return ATLX_ERR_PHY_SPEED;
915 if (phy_data & MII_ATLX_PSSR_DPLX)
916 *duplex = FULL_DUPLEX;
918 *duplex = HALF_DUPLEX;
923 static void atl1_set_mac_addr(struct atl1_hw *hw)
928 * 0: 6AF600DC 1: 000B
931 value = (((u32) hw->mac_addr[2]) << 24) |
932 (((u32) hw->mac_addr[3]) << 16) |
933 (((u32) hw->mac_addr[4]) << 8) | (((u32) hw->mac_addr[5]));
934 iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
936 value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
937 iowrite32(value, (hw->hw_addr + REG_MAC_STA_ADDR) + (1 << 2));
941 * atl1_sw_init - Initialize general software structures (struct atl1_adapter)
942 * @adapter: board private structure to initialize
944 * atl1_sw_init initializes the Adapter private data structure.
945 * Fields are initialized based on PCI device information and
946 * OS network device settings (MTU size).
948 static int __devinit atl1_sw_init(struct atl1_adapter *adapter)
950 struct atl1_hw *hw = &adapter->hw;
951 struct net_device *netdev = adapter->netdev;
953 hw->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
954 hw->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
957 device_set_wakeup_enable(&adapter->pdev->dev, false);
958 adapter->rx_buffer_len = (hw->max_frame_size + 7) & ~7;
959 adapter->ict = 50000; /* 100ms */
960 adapter->link_speed = SPEED_0; /* hardware init */
961 adapter->link_duplex = FULL_DUPLEX;
963 hw->phy_configured = false;
964 hw->preamble_len = 7;
974 hw->rfd_fetch_gap = 1;
975 hw->rx_jumbo_th = adapter->rx_buffer_len / 8;
976 hw->rx_jumbo_lkah = 1;
977 hw->rrd_ret_timer = 16;
979 hw->tpd_fetch_th = 16;
980 hw->txf_burst = 0x100;
981 hw->tx_jumbo_task_th = (hw->max_frame_size + 7) >> 3;
982 hw->tpd_fetch_gap = 1;
983 hw->rcb_value = atl1_rcb_64;
984 hw->dma_ord = atl1_dma_ord_enh;
985 hw->dmar_block = atl1_dma_req_256;
986 hw->dmaw_block = atl1_dma_req_256;
989 hw->cmb_rx_timer = 1; /* about 2us */
990 hw->cmb_tx_timer = 1; /* about 2us */
991 hw->smb_timer = 100000; /* about 200ms */
993 spin_lock_init(&adapter->lock);
994 spin_lock_init(&adapter->mb_lock);
999 static int mdio_read(struct net_device *netdev, int phy_id, int reg_num)
1001 struct atl1_adapter *adapter = netdev_priv(netdev);
1004 atl1_read_phy_reg(&adapter->hw, reg_num & 0x1f, &result);
1009 static void mdio_write(struct net_device *netdev, int phy_id, int reg_num,
1012 struct atl1_adapter *adapter = netdev_priv(netdev);
1014 atl1_write_phy_reg(&adapter->hw, reg_num, val);
1023 static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
1025 struct atl1_adapter *adapter = netdev_priv(netdev);
1026 unsigned long flags;
1029 if (!netif_running(netdev))
1032 spin_lock_irqsave(&adapter->lock, flags);
1033 retval = generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL);
1034 spin_unlock_irqrestore(&adapter->lock, flags);
1040 * atl1_setup_mem_resources - allocate Tx / RX descriptor resources
1041 * @adapter: board private structure
1043 * Return 0 on success, negative on failure
1045 static s32 atl1_setup_ring_resources(struct atl1_adapter *adapter)
1047 struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
1048 struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
1049 struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
1050 struct atl1_ring_header *ring_header = &adapter->ring_header;
1051 struct pci_dev *pdev = adapter->pdev;
1055 size = sizeof(struct atl1_buffer) * (tpd_ring->count + rfd_ring->count);
1056 tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL);
1057 if (unlikely(!tpd_ring->buffer_info)) {
1058 if (netif_msg_drv(adapter))
1059 dev_err(&pdev->dev, "kzalloc failed , size = D%d\n",
1063 rfd_ring->buffer_info =
1064 (struct atl1_buffer *)(tpd_ring->buffer_info + tpd_ring->count);
1067 * real ring DMA buffer
1068 * each ring/block may need up to 8 bytes for alignment, hence the
1069 * additional 40 bytes tacked onto the end.
1071 ring_header->size = size =
1072 sizeof(struct tx_packet_desc) * tpd_ring->count
1073 + sizeof(struct rx_free_desc) * rfd_ring->count
1074 + sizeof(struct rx_return_desc) * rrd_ring->count
1075 + sizeof(struct coals_msg_block)
1076 + sizeof(struct stats_msg_block)
1079 ring_header->desc = pci_alloc_consistent(pdev, ring_header->size,
1081 if (unlikely(!ring_header->desc)) {
1082 if (netif_msg_drv(adapter))
1083 dev_err(&pdev->dev, "pci_alloc_consistent failed\n");
1087 memset(ring_header->desc, 0, ring_header->size);
1090 tpd_ring->dma = ring_header->dma;
1091 offset = (tpd_ring->dma & 0x7) ? (8 - (ring_header->dma & 0x7)) : 0;
1092 tpd_ring->dma += offset;
1093 tpd_ring->desc = (u8 *) ring_header->desc + offset;
1094 tpd_ring->size = sizeof(struct tx_packet_desc) * tpd_ring->count;
1097 rfd_ring->dma = tpd_ring->dma + tpd_ring->size;
1098 offset = (rfd_ring->dma & 0x7) ? (8 - (rfd_ring->dma & 0x7)) : 0;
1099 rfd_ring->dma += offset;
1100 rfd_ring->desc = (u8 *) tpd_ring->desc + (tpd_ring->size + offset);
1101 rfd_ring->size = sizeof(struct rx_free_desc) * rfd_ring->count;
1105 rrd_ring->dma = rfd_ring->dma + rfd_ring->size;
1106 offset = (rrd_ring->dma & 0x7) ? (8 - (rrd_ring->dma & 0x7)) : 0;
1107 rrd_ring->dma += offset;
1108 rrd_ring->desc = (u8 *) rfd_ring->desc + (rfd_ring->size + offset);
1109 rrd_ring->size = sizeof(struct rx_return_desc) * rrd_ring->count;
1113 adapter->cmb.dma = rrd_ring->dma + rrd_ring->size;
1114 offset = (adapter->cmb.dma & 0x7) ? (8 - (adapter->cmb.dma & 0x7)) : 0;
1115 adapter->cmb.dma += offset;
1116 adapter->cmb.cmb = (struct coals_msg_block *)
1117 ((u8 *) rrd_ring->desc + (rrd_ring->size + offset));
1120 adapter->smb.dma = adapter->cmb.dma + sizeof(struct coals_msg_block);
1121 offset = (adapter->smb.dma & 0x7) ? (8 - (adapter->smb.dma & 0x7)) : 0;
1122 adapter->smb.dma += offset;
1123 adapter->smb.smb = (struct stats_msg_block *)
1124 ((u8 *) adapter->cmb.cmb +
1125 (sizeof(struct coals_msg_block) + offset));
1130 kfree(tpd_ring->buffer_info);
1134 static void atl1_init_ring_ptrs(struct atl1_adapter *adapter)
1136 struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
1137 struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
1138 struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
1140 atomic_set(&tpd_ring->next_to_use, 0);
1141 atomic_set(&tpd_ring->next_to_clean, 0);
1143 rfd_ring->next_to_clean = 0;
1144 atomic_set(&rfd_ring->next_to_use, 0);
1146 rrd_ring->next_to_use = 0;
1147 atomic_set(&rrd_ring->next_to_clean, 0);
1151 * atl1_clean_rx_ring - Free RFD Buffers
1152 * @adapter: board private structure
1154 static void atl1_clean_rx_ring(struct atl1_adapter *adapter)
1156 struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
1157 struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
1158 struct atl1_buffer *buffer_info;
1159 struct pci_dev *pdev = adapter->pdev;
1163 /* Free all the Rx ring sk_buffs */
1164 for (i = 0; i < rfd_ring->count; i++) {
1165 buffer_info = &rfd_ring->buffer_info[i];
1166 if (buffer_info->dma) {
1167 pci_unmap_page(pdev, buffer_info->dma,
1168 buffer_info->length, PCI_DMA_FROMDEVICE);
1169 buffer_info->dma = 0;
1171 if (buffer_info->skb) {
1172 dev_kfree_skb(buffer_info->skb);
1173 buffer_info->skb = NULL;
1177 size = sizeof(struct atl1_buffer) * rfd_ring->count;
1178 memset(rfd_ring->buffer_info, 0, size);
1180 /* Zero out the descriptor ring */
1181 memset(rfd_ring->desc, 0, rfd_ring->size);
1183 rfd_ring->next_to_clean = 0;
1184 atomic_set(&rfd_ring->next_to_use, 0);
1186 rrd_ring->next_to_use = 0;
1187 atomic_set(&rrd_ring->next_to_clean, 0);
1191 * atl1_clean_tx_ring - Free Tx Buffers
1192 * @adapter: board private structure
1194 static void atl1_clean_tx_ring(struct atl1_adapter *adapter)
1196 struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
1197 struct atl1_buffer *buffer_info;
1198 struct pci_dev *pdev = adapter->pdev;
1202 /* Free all the Tx ring sk_buffs */
1203 for (i = 0; i < tpd_ring->count; i++) {
1204 buffer_info = &tpd_ring->buffer_info[i];
1205 if (buffer_info->dma) {
1206 pci_unmap_page(pdev, buffer_info->dma,
1207 buffer_info->length, PCI_DMA_TODEVICE);
1208 buffer_info->dma = 0;
1212 for (i = 0; i < tpd_ring->count; i++) {
1213 buffer_info = &tpd_ring->buffer_info[i];
1214 if (buffer_info->skb) {
1215 dev_kfree_skb_any(buffer_info->skb);
1216 buffer_info->skb = NULL;
1220 size = sizeof(struct atl1_buffer) * tpd_ring->count;
1221 memset(tpd_ring->buffer_info, 0, size);
1223 /* Zero out the descriptor ring */
1224 memset(tpd_ring->desc, 0, tpd_ring->size);
1226 atomic_set(&tpd_ring->next_to_use, 0);
1227 atomic_set(&tpd_ring->next_to_clean, 0);
1231 * atl1_free_ring_resources - Free Tx / RX descriptor Resources
1232 * @adapter: board private structure
1234 * Free all transmit software resources
1236 static void atl1_free_ring_resources(struct atl1_adapter *adapter)
1238 struct pci_dev *pdev = adapter->pdev;
1239 struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
1240 struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
1241 struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
1242 struct atl1_ring_header *ring_header = &adapter->ring_header;
1244 atl1_clean_tx_ring(adapter);
1245 atl1_clean_rx_ring(adapter);
1247 kfree(tpd_ring->buffer_info);
1248 pci_free_consistent(pdev, ring_header->size, ring_header->desc,
1251 tpd_ring->buffer_info = NULL;
1252 tpd_ring->desc = NULL;
1255 rfd_ring->buffer_info = NULL;
1256 rfd_ring->desc = NULL;
1259 rrd_ring->desc = NULL;
1262 adapter->cmb.dma = 0;
1263 adapter->cmb.cmb = NULL;
1265 adapter->smb.dma = 0;
1266 adapter->smb.smb = NULL;
1269 static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
1272 struct atl1_hw *hw = &adapter->hw;
1273 struct net_device *netdev = adapter->netdev;
1274 /* Config MAC CTRL Register */
1275 value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN;
1277 if (FULL_DUPLEX == adapter->link_duplex)
1278 value |= MAC_CTRL_DUPLX;
1280 value |= ((u32) ((SPEED_1000 == adapter->link_speed) ?
1281 MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) <<
1282 MAC_CTRL_SPEED_SHIFT);
1284 value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
1286 value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
1287 /* preamble length */
1288 value |= (((u32) adapter->hw.preamble_len
1289 & MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
1291 __atlx_vlan_mode(netdev->features, &value);
1293 if (adapter->rx_csum)
1294 value |= MAC_CTRL_RX_CHKSUM_EN;
1297 value |= MAC_CTRL_BC_EN;
1298 if (netdev->flags & IFF_PROMISC)
1299 value |= MAC_CTRL_PROMIS_EN;
1300 else if (netdev->flags & IFF_ALLMULTI)
1301 value |= MAC_CTRL_MC_ALL_EN;
1302 /* value |= MAC_CTRL_LOOPBACK; */
1303 iowrite32(value, hw->hw_addr + REG_MAC_CTRL);
1306 static u32 atl1_check_link(struct atl1_adapter *adapter)
1308 struct atl1_hw *hw = &adapter->hw;
1309 struct net_device *netdev = adapter->netdev;
1311 u16 speed, duplex, phy_data;
1314 /* MII_BMSR must read twice */
1315 atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
1316 atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
1317 if (!(phy_data & BMSR_LSTATUS)) {
1319 if (netif_carrier_ok(netdev)) {
1320 /* old link state: Up */
1321 if (netif_msg_link(adapter))
1322 dev_info(&adapter->pdev->dev, "link is down\n");
1323 adapter->link_speed = SPEED_0;
1324 netif_carrier_off(netdev);
1330 ret_val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
1334 switch (hw->media_type) {
1335 case MEDIA_TYPE_1000M_FULL:
1336 if (speed != SPEED_1000 || duplex != FULL_DUPLEX)
1339 case MEDIA_TYPE_100M_FULL:
1340 if (speed != SPEED_100 || duplex != FULL_DUPLEX)
1343 case MEDIA_TYPE_100M_HALF:
1344 if (speed != SPEED_100 || duplex != HALF_DUPLEX)
1347 case MEDIA_TYPE_10M_FULL:
1348 if (speed != SPEED_10 || duplex != FULL_DUPLEX)
1351 case MEDIA_TYPE_10M_HALF:
1352 if (speed != SPEED_10 || duplex != HALF_DUPLEX)
1357 /* link result is our setting */
1359 if (adapter->link_speed != speed ||
1360 adapter->link_duplex != duplex) {
1361 adapter->link_speed = speed;
1362 adapter->link_duplex = duplex;
1363 atl1_setup_mac_ctrl(adapter);
1364 if (netif_msg_link(adapter))
1365 dev_info(&adapter->pdev->dev,
1366 "%s link is up %d Mbps %s\n",
1367 netdev->name, adapter->link_speed,
1368 adapter->link_duplex == FULL_DUPLEX ?
1369 "full duplex" : "half duplex");
1371 if (!netif_carrier_ok(netdev)) {
1372 /* Link down -> Up */
1373 netif_carrier_on(netdev);
1378 /* change original link status */
1379 if (netif_carrier_ok(netdev)) {
1380 adapter->link_speed = SPEED_0;
1381 netif_carrier_off(netdev);
1382 netif_stop_queue(netdev);
1385 if (hw->media_type != MEDIA_TYPE_AUTO_SENSOR &&
1386 hw->media_type != MEDIA_TYPE_1000M_FULL) {
1387 switch (hw->media_type) {
1388 case MEDIA_TYPE_100M_FULL:
1389 phy_data = MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
1392 case MEDIA_TYPE_100M_HALF:
1393 phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
1395 case MEDIA_TYPE_10M_FULL:
1397 MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
1400 /* MEDIA_TYPE_10M_HALF: */
1401 phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
1404 atl1_write_phy_reg(hw, MII_BMCR, phy_data);
1408 /* auto-neg, insert timer to re-config phy */
1409 if (!adapter->phy_timer_pending) {
1410 adapter->phy_timer_pending = true;
1411 mod_timer(&adapter->phy_config_timer,
1412 round_jiffies(jiffies + 3 * HZ));
1418 static void set_flow_ctrl_old(struct atl1_adapter *adapter)
1422 /* RFD Flow Control */
1423 value = adapter->rfd_ring.count;
1429 value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
1430 ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
1431 iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
1433 /* RRD Flow Control */
1434 value = adapter->rrd_ring.count;
1439 value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
1440 ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
1441 iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
1444 static void set_flow_ctrl_new(struct atl1_hw *hw)
1448 /* RXF Flow Control */
1449 value = ioread32(hw->hw_addr + REG_SRAM_RXF_LEN);
1456 value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
1457 ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
1458 iowrite32(value, hw->hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
1460 /* RRD Flow Control */
1461 value = ioread32(hw->hw_addr + REG_SRAM_RRD_LEN);
1468 value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
1469 ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
1470 iowrite32(value, hw->hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
1474 * atl1_configure - Configure Transmit&Receive Unit after Reset
1475 * @adapter: board private structure
1477 * Configure the Tx /Rx unit of the MAC after a reset.
1479 static u32 atl1_configure(struct atl1_adapter *adapter)
1481 struct atl1_hw *hw = &adapter->hw;
1484 /* clear interrupt status */
1485 iowrite32(0xffffffff, adapter->hw.hw_addr + REG_ISR);
1487 /* set MAC Address */
1488 value = (((u32) hw->mac_addr[2]) << 24) |
1489 (((u32) hw->mac_addr[3]) << 16) |
1490 (((u32) hw->mac_addr[4]) << 8) |
1491 (((u32) hw->mac_addr[5]));
1492 iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
1493 value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
1494 iowrite32(value, hw->hw_addr + (REG_MAC_STA_ADDR + 4));
1498 /* HI base address */
1499 iowrite32((u32) ((adapter->tpd_ring.dma & 0xffffffff00000000ULL) >> 32),
1500 hw->hw_addr + REG_DESC_BASE_ADDR_HI);
1501 /* LO base address */
1502 iowrite32((u32) (adapter->rfd_ring.dma & 0x00000000ffffffffULL),
1503 hw->hw_addr + REG_DESC_RFD_ADDR_LO);
1504 iowrite32((u32) (adapter->rrd_ring.dma & 0x00000000ffffffffULL),
1505 hw->hw_addr + REG_DESC_RRD_ADDR_LO);
1506 iowrite32((u32) (adapter->tpd_ring.dma & 0x00000000ffffffffULL),
1507 hw->hw_addr + REG_DESC_TPD_ADDR_LO);
1508 iowrite32((u32) (adapter->cmb.dma & 0x00000000ffffffffULL),
1509 hw->hw_addr + REG_DESC_CMB_ADDR_LO);
1510 iowrite32((u32) (adapter->smb.dma & 0x00000000ffffffffULL),
1511 hw->hw_addr + REG_DESC_SMB_ADDR_LO);
1514 value = adapter->rrd_ring.count;
1516 value += adapter->rfd_ring.count;
1517 iowrite32(value, hw->hw_addr + REG_DESC_RFD_RRD_RING_SIZE);
1518 iowrite32(adapter->tpd_ring.count, hw->hw_addr +
1519 REG_DESC_TPD_RING_SIZE);
1522 iowrite32(1, hw->hw_addr + REG_LOAD_PTR);
1524 /* config Mailbox */
1525 value = ((atomic_read(&adapter->tpd_ring.next_to_use)
1526 & MB_TPD_PROD_INDX_MASK) << MB_TPD_PROD_INDX_SHIFT) |
1527 ((atomic_read(&adapter->rrd_ring.next_to_clean)
1528 & MB_RRD_CONS_INDX_MASK) << MB_RRD_CONS_INDX_SHIFT) |
1529 ((atomic_read(&adapter->rfd_ring.next_to_use)
1530 & MB_RFD_PROD_INDX_MASK) << MB_RFD_PROD_INDX_SHIFT);
1531 iowrite32(value, hw->hw_addr + REG_MAILBOX);
1533 /* config IPG/IFG */
1534 value = (((u32) hw->ipgt & MAC_IPG_IFG_IPGT_MASK)
1535 << MAC_IPG_IFG_IPGT_SHIFT) |
1536 (((u32) hw->min_ifg & MAC_IPG_IFG_MIFG_MASK)
1537 << MAC_IPG_IFG_MIFG_SHIFT) |
1538 (((u32) hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK)
1539 << MAC_IPG_IFG_IPGR1_SHIFT) |
1540 (((u32) hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK)
1541 << MAC_IPG_IFG_IPGR2_SHIFT);
1542 iowrite32(value, hw->hw_addr + REG_MAC_IPG_IFG);
1544 /* config Half-Duplex Control */
1545 value = ((u32) hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) |
1546 (((u32) hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK)
1547 << MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) |
1548 MAC_HALF_DUPLX_CTRL_EXC_DEF_EN |
1549 (0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) |
1550 (((u32) hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK)
1551 << MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT);
1552 iowrite32(value, hw->hw_addr + REG_MAC_HALF_DUPLX_CTRL);
1554 /* set Interrupt Moderator Timer */
1555 iowrite16(adapter->imt, hw->hw_addr + REG_IRQ_MODU_TIMER_INIT);
1556 iowrite32(MASTER_CTRL_ITIMER_EN, hw->hw_addr + REG_MASTER_CTRL);
1558 /* set Interrupt Clear Timer */
1559 iowrite16(adapter->ict, hw->hw_addr + REG_CMBDISDMA_TIMER);
1561 /* set max frame size hw will accept */
1562 iowrite32(hw->max_frame_size, hw->hw_addr + REG_MTU);
1564 /* jumbo size & rrd retirement timer */
1565 value = (((u32) hw->rx_jumbo_th & RXQ_JMBOSZ_TH_MASK)
1566 << RXQ_JMBOSZ_TH_SHIFT) |
1567 (((u32) hw->rx_jumbo_lkah & RXQ_JMBO_LKAH_MASK)
1568 << RXQ_JMBO_LKAH_SHIFT) |
1569 (((u32) hw->rrd_ret_timer & RXQ_RRD_TIMER_MASK)
1570 << RXQ_RRD_TIMER_SHIFT);
1571 iowrite32(value, hw->hw_addr + REG_RXQ_JMBOSZ_RRDTIM);
1574 switch (hw->dev_rev) {
1579 set_flow_ctrl_old(adapter);
1582 set_flow_ctrl_new(hw);
1587 value = (((u32) hw->tpd_burst & TXQ_CTRL_TPD_BURST_NUM_MASK)
1588 << TXQ_CTRL_TPD_BURST_NUM_SHIFT) |
1589 (((u32) hw->txf_burst & TXQ_CTRL_TXF_BURST_NUM_MASK)
1590 << TXQ_CTRL_TXF_BURST_NUM_SHIFT) |
1591 (((u32) hw->tpd_fetch_th & TXQ_CTRL_TPD_FETCH_TH_MASK)
1592 << TXQ_CTRL_TPD_FETCH_TH_SHIFT) | TXQ_CTRL_ENH_MODE |
1594 iowrite32(value, hw->hw_addr + REG_TXQ_CTRL);
1596 /* min tpd fetch gap & tx jumbo packet size threshold for taskoffload */
1597 value = (((u32) hw->tx_jumbo_task_th & TX_JUMBO_TASK_TH_MASK)
1598 << TX_JUMBO_TASK_TH_SHIFT) |
1599 (((u32) hw->tpd_fetch_gap & TX_TPD_MIN_IPG_MASK)
1600 << TX_TPD_MIN_IPG_SHIFT);
1601 iowrite32(value, hw->hw_addr + REG_TX_JUMBO_TASK_TH_TPD_IPG);
1604 value = (((u32) hw->rfd_burst & RXQ_CTRL_RFD_BURST_NUM_MASK)
1605 << RXQ_CTRL_RFD_BURST_NUM_SHIFT) |
1606 (((u32) hw->rrd_burst & RXQ_CTRL_RRD_BURST_THRESH_MASK)
1607 << RXQ_CTRL_RRD_BURST_THRESH_SHIFT) |
1608 (((u32) hw->rfd_fetch_gap & RXQ_CTRL_RFD_PREF_MIN_IPG_MASK)
1609 << RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT) | RXQ_CTRL_CUT_THRU_EN |
1611 iowrite32(value, hw->hw_addr + REG_RXQ_CTRL);
1613 /* config DMA Engine */
1614 value = ((((u32) hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
1615 << DMA_CTRL_DMAR_BURST_LEN_SHIFT) |
1616 ((((u32) hw->dmaw_block) & DMA_CTRL_DMAW_BURST_LEN_MASK)
1617 << DMA_CTRL_DMAW_BURST_LEN_SHIFT) | DMA_CTRL_DMAR_EN |
1619 value |= (u32) hw->dma_ord;
1620 if (atl1_rcb_128 == hw->rcb_value)
1621 value |= DMA_CTRL_RCB_VALUE;
1622 iowrite32(value, hw->hw_addr + REG_DMA_CTRL);
1624 /* config CMB / SMB */
1625 value = (hw->cmb_tpd > adapter->tpd_ring.count) ?
1626 hw->cmb_tpd : adapter->tpd_ring.count;
1628 value |= hw->cmb_rrd;
1629 iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TH);
1630 value = hw->cmb_rx_timer | ((u32) hw->cmb_tx_timer << 16);
1631 iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TIMER);
1632 iowrite32(hw->smb_timer, hw->hw_addr + REG_SMB_TIMER);
1634 /* --- enable CMB / SMB */
1635 value = CSMB_CTRL_CMB_EN | CSMB_CTRL_SMB_EN;
1636 iowrite32(value, hw->hw_addr + REG_CSMB_CTRL);
1638 value = ioread32(adapter->hw.hw_addr + REG_ISR);
1639 if (unlikely((value & ISR_PHY_LINKDOWN) != 0))
1640 value = 1; /* config failed */
1644 /* clear all interrupt status */
1645 iowrite32(0x3fffffff, adapter->hw.hw_addr + REG_ISR);
1646 iowrite32(0, adapter->hw.hw_addr + REG_ISR);
1651 * atl1_pcie_patch - Patch for PCIE module
1653 static void atl1_pcie_patch(struct atl1_adapter *adapter)
1657 /* much vendor magic here */
1659 iowrite32(value, adapter->hw.hw_addr + 0x12FC);
1660 /* pcie flow control mode change */
1661 value = ioread32(adapter->hw.hw_addr + 0x1008);
1663 iowrite32(value, adapter->hw.hw_addr + 0x1008);
1667 * When ACPI resume on some VIA MotherBoard, the Interrupt Disable bit/0x400
1668 * on PCI Command register is disable.
1669 * The function enable this bit.
1670 * Brackett, 2006/03/15
1672 static void atl1_via_workaround(struct atl1_adapter *adapter)
1674 unsigned long value;
1676 value = ioread16(adapter->hw.hw_addr + PCI_COMMAND);
1677 if (value & PCI_COMMAND_INTX_DISABLE)
1678 value &= ~PCI_COMMAND_INTX_DISABLE;
1679 iowrite32(value, adapter->hw.hw_addr + PCI_COMMAND);
1682 static void atl1_inc_smb(struct atl1_adapter *adapter)
1684 struct net_device *netdev = adapter->netdev;
1685 struct stats_msg_block *smb = adapter->smb.smb;
1687 /* Fill out the OS statistics structure */
1688 adapter->soft_stats.rx_packets += smb->rx_ok;
1689 adapter->soft_stats.tx_packets += smb->tx_ok;
1690 adapter->soft_stats.rx_bytes += smb->rx_byte_cnt;
1691 adapter->soft_stats.tx_bytes += smb->tx_byte_cnt;
1692 adapter->soft_stats.multicast += smb->rx_mcast;
1693 adapter->soft_stats.collisions += (smb->tx_1_col + smb->tx_2_col * 2 +
1694 smb->tx_late_col + smb->tx_abort_col * adapter->hw.max_retry);
1697 adapter->soft_stats.rx_errors += (smb->rx_frag + smb->rx_fcs_err +
1698 smb->rx_len_err + smb->rx_sz_ov + smb->rx_rxf_ov +
1699 smb->rx_rrd_ov + smb->rx_align_err);
1700 adapter->soft_stats.rx_fifo_errors += smb->rx_rxf_ov;
1701 adapter->soft_stats.rx_length_errors += smb->rx_len_err;
1702 adapter->soft_stats.rx_crc_errors += smb->rx_fcs_err;
1703 adapter->soft_stats.rx_frame_errors += smb->rx_align_err;
1704 adapter->soft_stats.rx_missed_errors += (smb->rx_rrd_ov +
1707 adapter->soft_stats.rx_pause += smb->rx_pause;
1708 adapter->soft_stats.rx_rrd_ov += smb->rx_rrd_ov;
1709 adapter->soft_stats.rx_trunc += smb->rx_sz_ov;
1712 adapter->soft_stats.tx_errors += (smb->tx_late_col +
1713 smb->tx_abort_col + smb->tx_underrun + smb->tx_trunc);
1714 adapter->soft_stats.tx_fifo_errors += smb->tx_underrun;
1715 adapter->soft_stats.tx_aborted_errors += smb->tx_abort_col;
1716 adapter->soft_stats.tx_window_errors += smb->tx_late_col;
1718 adapter->soft_stats.excecol += smb->tx_abort_col;
1719 adapter->soft_stats.deffer += smb->tx_defer;
1720 adapter->soft_stats.scc += smb->tx_1_col;
1721 adapter->soft_stats.mcc += smb->tx_2_col;
1722 adapter->soft_stats.latecol += smb->tx_late_col;
1723 adapter->soft_stats.tx_underun += smb->tx_underrun;
1724 adapter->soft_stats.tx_trunc += smb->tx_trunc;
1725 adapter->soft_stats.tx_pause += smb->tx_pause;
1727 netdev->stats.rx_packets = adapter->soft_stats.rx_packets;
1728 netdev->stats.tx_packets = adapter->soft_stats.tx_packets;
1729 netdev->stats.rx_bytes = adapter->soft_stats.rx_bytes;
1730 netdev->stats.tx_bytes = adapter->soft_stats.tx_bytes;
1731 netdev->stats.multicast = adapter->soft_stats.multicast;
1732 netdev->stats.collisions = adapter->soft_stats.collisions;
1733 netdev->stats.rx_errors = adapter->soft_stats.rx_errors;
1734 netdev->stats.rx_over_errors =
1735 adapter->soft_stats.rx_missed_errors;
1736 netdev->stats.rx_length_errors =
1737 adapter->soft_stats.rx_length_errors;
1738 netdev->stats.rx_crc_errors = adapter->soft_stats.rx_crc_errors;
1739 netdev->stats.rx_frame_errors =
1740 adapter->soft_stats.rx_frame_errors;
1741 netdev->stats.rx_fifo_errors = adapter->soft_stats.rx_fifo_errors;
1742 netdev->stats.rx_missed_errors =
1743 adapter->soft_stats.rx_missed_errors;
1744 netdev->stats.tx_errors = adapter->soft_stats.tx_errors;
1745 netdev->stats.tx_fifo_errors = adapter->soft_stats.tx_fifo_errors;
1746 netdev->stats.tx_aborted_errors =
1747 adapter->soft_stats.tx_aborted_errors;
1748 netdev->stats.tx_window_errors =
1749 adapter->soft_stats.tx_window_errors;
1750 netdev->stats.tx_carrier_errors =
1751 adapter->soft_stats.tx_carrier_errors;
1754 static void atl1_update_mailbox(struct atl1_adapter *adapter)
1756 unsigned long flags;
1757 u32 tpd_next_to_use;
1758 u32 rfd_next_to_use;
1759 u32 rrd_next_to_clean;
1762 spin_lock_irqsave(&adapter->mb_lock, flags);
1764 tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
1765 rfd_next_to_use = atomic_read(&adapter->rfd_ring.next_to_use);
1766 rrd_next_to_clean = atomic_read(&adapter->rrd_ring.next_to_clean);
1768 value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
1769 MB_RFD_PROD_INDX_SHIFT) |
1770 ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
1771 MB_RRD_CONS_INDX_SHIFT) |
1772 ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
1773 MB_TPD_PROD_INDX_SHIFT);
1774 iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
1776 spin_unlock_irqrestore(&adapter->mb_lock, flags);
1779 static void atl1_clean_alloc_flag(struct atl1_adapter *adapter,
1780 struct rx_return_desc *rrd, u16 offset)
1782 struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
1784 while (rfd_ring->next_to_clean != (rrd->buf_indx + offset)) {
1785 rfd_ring->buffer_info[rfd_ring->next_to_clean].alloced = 0;
1786 if (++rfd_ring->next_to_clean == rfd_ring->count) {
1787 rfd_ring->next_to_clean = 0;
1792 static void atl1_update_rfd_index(struct atl1_adapter *adapter,
1793 struct rx_return_desc *rrd)
1797 num_buf = (rrd->xsz.xsum_sz.pkt_size + adapter->rx_buffer_len - 1) /
1798 adapter->rx_buffer_len;
1799 if (rrd->num_buf == num_buf)
1800 /* clean alloc flag for bad rrd */
1801 atl1_clean_alloc_flag(adapter, rrd, num_buf);
1804 static void atl1_rx_checksum(struct atl1_adapter *adapter,
1805 struct rx_return_desc *rrd, struct sk_buff *skb)
1807 struct pci_dev *pdev = adapter->pdev;
1810 * The L1 hardware contains a bug that erroneously sets the
1811 * PACKET_FLAG_ERR and ERR_FLAG_L4_CHKSUM bits whenever a
1812 * fragmented IP packet is received, even though the packet
1813 * is perfectly valid and its checksum is correct. There's
1814 * no way to distinguish between one of these good packets
1815 * and a packet that actually contains a TCP/UDP checksum
1816 * error, so all we can do is allow it to be handed up to
1817 * the higher layers and let it be sorted out there.
1820 skb_checksum_none_assert(skb);
1822 if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
1823 if (rrd->err_flg & (ERR_FLAG_CRC | ERR_FLAG_TRUNC |
1824 ERR_FLAG_CODE | ERR_FLAG_OV)) {
1825 adapter->hw_csum_err++;
1826 if (netif_msg_rx_err(adapter))
1827 dev_printk(KERN_DEBUG, &pdev->dev,
1828 "rx checksum error\n");
1834 if (!(rrd->pkt_flg & PACKET_FLAG_IPV4))
1835 /* checksum is invalid, but it's not an IPv4 pkt, so ok */
1839 if (likely(!(rrd->err_flg &
1840 (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM)))) {
1841 skb->ip_summed = CHECKSUM_UNNECESSARY;
1842 adapter->hw_csum_good++;
1848 * atl1_alloc_rx_buffers - Replace used receive buffers
1849 * @adapter: address of board private structure
1851 static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter)
1853 struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
1854 struct pci_dev *pdev = adapter->pdev;
1856 unsigned long offset;
1857 struct atl1_buffer *buffer_info, *next_info;
1858 struct sk_buff *skb;
1860 u16 rfd_next_to_use, next_next;
1861 struct rx_free_desc *rfd_desc;
1863 next_next = rfd_next_to_use = atomic_read(&rfd_ring->next_to_use);
1864 if (++next_next == rfd_ring->count)
1866 buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
1867 next_info = &rfd_ring->buffer_info[next_next];
1869 while (!buffer_info->alloced && !next_info->alloced) {
1870 if (buffer_info->skb) {
1871 buffer_info->alloced = 1;
1875 rfd_desc = ATL1_RFD_DESC(rfd_ring, rfd_next_to_use);
1877 skb = netdev_alloc_skb_ip_align(adapter->netdev,
1878 adapter->rx_buffer_len);
1879 if (unlikely(!skb)) {
1880 /* Better luck next round */
1881 adapter->netdev->stats.rx_dropped++;
1885 buffer_info->alloced = 1;
1886 buffer_info->skb = skb;
1887 buffer_info->length = (u16) adapter->rx_buffer_len;
1888 page = virt_to_page(skb->data);
1889 offset = (unsigned long)skb->data & ~PAGE_MASK;
1890 buffer_info->dma = pci_map_page(pdev, page, offset,
1891 adapter->rx_buffer_len,
1892 PCI_DMA_FROMDEVICE);
1893 rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
1894 rfd_desc->buf_len = cpu_to_le16(adapter->rx_buffer_len);
1895 rfd_desc->coalese = 0;
1898 rfd_next_to_use = next_next;
1899 if (unlikely(++next_next == rfd_ring->count))
1902 buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
1903 next_info = &rfd_ring->buffer_info[next_next];
1909 * Force memory writes to complete before letting h/w
1910 * know there are new descriptors to fetch. (Only
1911 * applicable for weak-ordered memory model archs,
1915 atomic_set(&rfd_ring->next_to_use, (int)rfd_next_to_use);
1920 static void atl1_intr_rx(struct atl1_adapter *adapter)
1924 u16 rrd_next_to_clean;
1926 struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
1927 struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
1928 struct atl1_buffer *buffer_info;
1929 struct rx_return_desc *rrd;
1930 struct sk_buff *skb;
1934 rrd_next_to_clean = atomic_read(&rrd_ring->next_to_clean);
1937 rrd = ATL1_RRD_DESC(rrd_ring, rrd_next_to_clean);
1939 if (likely(rrd->xsz.valid)) { /* packet valid */
1941 /* check rrd status */
1942 if (likely(rrd->num_buf == 1))
1944 else if (netif_msg_rx_err(adapter)) {
1945 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
1946 "unexpected RRD buffer count\n");
1947 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
1948 "rx_buf_len = %d\n",
1949 adapter->rx_buffer_len);
1950 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
1951 "RRD num_buf = %d\n",
1953 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
1954 "RRD pkt_len = %d\n",
1955 rrd->xsz.xsum_sz.pkt_size);
1956 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
1957 "RRD pkt_flg = 0x%08X\n",
1959 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
1960 "RRD err_flg = 0x%08X\n",
1962 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
1963 "RRD vlan_tag = 0x%08X\n",
1967 /* rrd seems to be bad */
1968 if (unlikely(i-- > 0)) {
1969 /* rrd may not be DMAed completely */
1974 if (netif_msg_rx_err(adapter))
1975 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
1977 /* see if update RFD index */
1978 if (rrd->num_buf > 1)
1979 atl1_update_rfd_index(adapter, rrd);
1983 if (++rrd_next_to_clean == rrd_ring->count)
1984 rrd_next_to_clean = 0;
1987 } else { /* current rrd still not be updated */
1992 /* clean alloc flag for bad rrd */
1993 atl1_clean_alloc_flag(adapter, rrd, 0);
1995 buffer_info = &rfd_ring->buffer_info[rrd->buf_indx];
1996 if (++rfd_ring->next_to_clean == rfd_ring->count)
1997 rfd_ring->next_to_clean = 0;
1999 /* update rrd next to clean */
2000 if (++rrd_next_to_clean == rrd_ring->count)
2001 rrd_next_to_clean = 0;
2004 if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
2005 if (!(rrd->err_flg &
2006 (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM
2008 /* packet error, don't need upstream */
2009 buffer_info->alloced = 0;
2016 pci_unmap_page(adapter->pdev, buffer_info->dma,
2017 buffer_info->length, PCI_DMA_FROMDEVICE);
2018 buffer_info->dma = 0;
2019 skb = buffer_info->skb;
2020 length = le16_to_cpu(rrd->xsz.xsum_sz.pkt_size);
2022 skb_put(skb, length - ETH_FCS_LEN);
2024 /* Receive Checksum Offload */
2025 atl1_rx_checksum(adapter, rrd, skb);
2026 skb->protocol = eth_type_trans(skb, adapter->netdev);
2028 if (rrd->pkt_flg & PACKET_FLAG_VLAN_INS) {
2029 u16 vlan_tag = (rrd->vlan_tag >> 4) |
2030 ((rrd->vlan_tag & 7) << 13) |
2031 ((rrd->vlan_tag & 8) << 9);
2033 __vlan_hwaccel_put_tag(skb, vlan_tag);
2037 /* let protocol layer free skb */
2038 buffer_info->skb = NULL;
2039 buffer_info->alloced = 0;
2043 atomic_set(&rrd_ring->next_to_clean, rrd_next_to_clean);
2045 atl1_alloc_rx_buffers(adapter);
2047 /* update mailbox ? */
2049 u32 tpd_next_to_use;
2050 u32 rfd_next_to_use;
2052 spin_lock(&adapter->mb_lock);
2054 tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
2056 atomic_read(&adapter->rfd_ring.next_to_use);
2058 atomic_read(&adapter->rrd_ring.next_to_clean);
2059 value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
2060 MB_RFD_PROD_INDX_SHIFT) |
2061 ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
2062 MB_RRD_CONS_INDX_SHIFT) |
2063 ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
2064 MB_TPD_PROD_INDX_SHIFT);
2065 iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
2066 spin_unlock(&adapter->mb_lock);
2070 static void atl1_intr_tx(struct atl1_adapter *adapter)
2072 struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
2073 struct atl1_buffer *buffer_info;
2074 u16 sw_tpd_next_to_clean;
2075 u16 cmb_tpd_next_to_clean;
2077 sw_tpd_next_to_clean = atomic_read(&tpd_ring->next_to_clean);
2078 cmb_tpd_next_to_clean = le16_to_cpu(adapter->cmb.cmb->tpd_cons_idx);
2080 while (cmb_tpd_next_to_clean != sw_tpd_next_to_clean) {
2081 buffer_info = &tpd_ring->buffer_info[sw_tpd_next_to_clean];
2082 if (buffer_info->dma) {
2083 pci_unmap_page(adapter->pdev, buffer_info->dma,
2084 buffer_info->length, PCI_DMA_TODEVICE);
2085 buffer_info->dma = 0;
2088 if (buffer_info->skb) {
2089 dev_kfree_skb_irq(buffer_info->skb);
2090 buffer_info->skb = NULL;
2093 if (++sw_tpd_next_to_clean == tpd_ring->count)
2094 sw_tpd_next_to_clean = 0;
2096 atomic_set(&tpd_ring->next_to_clean, sw_tpd_next_to_clean);
2098 if (netif_queue_stopped(adapter->netdev) &&
2099 netif_carrier_ok(adapter->netdev))
2100 netif_wake_queue(adapter->netdev);
2103 static u16 atl1_tpd_avail(struct atl1_tpd_ring *tpd_ring)
2105 u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean);
2106 u16 next_to_use = atomic_read(&tpd_ring->next_to_use);
2107 return (next_to_clean > next_to_use) ?
2108 next_to_clean - next_to_use - 1 :
2109 tpd_ring->count + next_to_clean - next_to_use - 1;
2112 static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb,
2113 struct tx_packet_desc *ptpd)
2119 if (skb_shinfo(skb)->gso_size) {
2120 if (skb_header_cloned(skb)) {
2121 err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
2126 if (skb->protocol == htons(ETH_P_IP)) {
2127 struct iphdr *iph = ip_hdr(skb);
2129 real_len = (((unsigned char *)iph - skb->data) +
2130 ntohs(iph->tot_len));
2131 if (real_len < skb->len)
2132 pskb_trim(skb, real_len);
2133 hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb));
2134 if (skb->len == hdr_len) {
2136 tcp_hdr(skb)->check =
2137 ~csum_tcpudp_magic(iph->saddr,
2138 iph->daddr, tcp_hdrlen(skb),
2140 ptpd->word3 |= (iph->ihl & TPD_IPHL_MASK) <<
2142 ptpd->word3 |= ((tcp_hdrlen(skb) >> 2) &
2143 TPD_TCPHDRLEN_MASK) <<
2144 TPD_TCPHDRLEN_SHIFT;
2145 ptpd->word3 |= 1 << TPD_IP_CSUM_SHIFT;
2146 ptpd->word3 |= 1 << TPD_TCP_CSUM_SHIFT;
2151 tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
2152 iph->daddr, 0, IPPROTO_TCP, 0);
2153 ip_off = (unsigned char *)iph -
2154 (unsigned char *) skb_network_header(skb);
2155 if (ip_off == 8) /* 802.3-SNAP frame */
2156 ptpd->word3 |= 1 << TPD_ETHTYPE_SHIFT;
2157 else if (ip_off != 0)
2160 ptpd->word3 |= (iph->ihl & TPD_IPHL_MASK) <<
2162 ptpd->word3 |= ((tcp_hdrlen(skb) >> 2) &
2163 TPD_TCPHDRLEN_MASK) << TPD_TCPHDRLEN_SHIFT;
2164 ptpd->word3 |= (skb_shinfo(skb)->gso_size &
2165 TPD_MSS_MASK) << TPD_MSS_SHIFT;
2166 ptpd->word3 |= 1 << TPD_SEGMENT_EN_SHIFT;
2173 static int atl1_tx_csum(struct atl1_adapter *adapter, struct sk_buff *skb,
2174 struct tx_packet_desc *ptpd)
2178 if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
2179 css = skb_checksum_start_offset(skb);
2180 cso = css + (u8) skb->csum_offset;
2181 if (unlikely(css & 0x1)) {
2182 /* L1 hardware requires an even number here */
2183 if (netif_msg_tx_err(adapter))
2184 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
2185 "payload offset not an even number\n");
2188 ptpd->word3 |= (css & TPD_PLOADOFFSET_MASK) <<
2189 TPD_PLOADOFFSET_SHIFT;
2190 ptpd->word3 |= (cso & TPD_CCSUMOFFSET_MASK) <<
2191 TPD_CCSUMOFFSET_SHIFT;
2192 ptpd->word3 |= 1 << TPD_CUST_CSUM_EN_SHIFT;
2198 static void atl1_tx_map(struct atl1_adapter *adapter, struct sk_buff *skb,
2199 struct tx_packet_desc *ptpd)
2201 struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
2202 struct atl1_buffer *buffer_info;
2203 u16 buf_len = skb->len;
2205 unsigned long offset;
2206 unsigned int nr_frags;
2213 buf_len -= skb->data_len;
2214 nr_frags = skb_shinfo(skb)->nr_frags;
2215 next_to_use = atomic_read(&tpd_ring->next_to_use);
2216 buffer_info = &tpd_ring->buffer_info[next_to_use];
2217 BUG_ON(buffer_info->skb);
2218 /* put skb in last TPD */
2219 buffer_info->skb = NULL;
2221 retval = (ptpd->word3 >> TPD_SEGMENT_EN_SHIFT) & TPD_SEGMENT_EN_MASK;
2224 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
2225 buffer_info->length = hdr_len;
2226 page = virt_to_page(skb->data);
2227 offset = (unsigned long)skb->data & ~PAGE_MASK;
2228 buffer_info->dma = pci_map_page(adapter->pdev, page,
2232 if (++next_to_use == tpd_ring->count)
2235 if (buf_len > hdr_len) {
2238 data_len = buf_len - hdr_len;
2239 nseg = (data_len + ATL1_MAX_TX_BUF_LEN - 1) /
2240 ATL1_MAX_TX_BUF_LEN;
2241 for (i = 0; i < nseg; i++) {
2243 &tpd_ring->buffer_info[next_to_use];
2244 buffer_info->skb = NULL;
2245 buffer_info->length =
2246 (ATL1_MAX_TX_BUF_LEN >=
2247 data_len) ? ATL1_MAX_TX_BUF_LEN : data_len;
2248 data_len -= buffer_info->length;
2249 page = virt_to_page(skb->data +
2250 (hdr_len + i * ATL1_MAX_TX_BUF_LEN));
2251 offset = (unsigned long)(skb->data +
2252 (hdr_len + i * ATL1_MAX_TX_BUF_LEN)) &
2254 buffer_info->dma = pci_map_page(adapter->pdev,
2255 page, offset, buffer_info->length,
2257 if (++next_to_use == tpd_ring->count)
2263 buffer_info->length = buf_len;
2264 page = virt_to_page(skb->data);
2265 offset = (unsigned long)skb->data & ~PAGE_MASK;
2266 buffer_info->dma = pci_map_page(adapter->pdev, page,
2267 offset, buf_len, PCI_DMA_TODEVICE);
2268 if (++next_to_use == tpd_ring->count)
2272 for (f = 0; f < nr_frags; f++) {
2273 const struct skb_frag_struct *frag;
2276 frag = &skb_shinfo(skb)->frags[f];
2277 buf_len = skb_frag_size(frag);
2279 nseg = (buf_len + ATL1_MAX_TX_BUF_LEN - 1) /
2280 ATL1_MAX_TX_BUF_LEN;
2281 for (i = 0; i < nseg; i++) {
2282 buffer_info = &tpd_ring->buffer_info[next_to_use];
2283 BUG_ON(buffer_info->skb);
2285 buffer_info->skb = NULL;
2286 buffer_info->length = (buf_len > ATL1_MAX_TX_BUF_LEN) ?
2287 ATL1_MAX_TX_BUF_LEN : buf_len;
2288 buf_len -= buffer_info->length;
2289 buffer_info->dma = skb_frag_dma_map(&adapter->pdev->dev,
2290 frag, i * ATL1_MAX_TX_BUF_LEN,
2291 buffer_info->length, DMA_TO_DEVICE);
2293 if (++next_to_use == tpd_ring->count)
2298 /* last tpd's buffer-info */
2299 buffer_info->skb = skb;
2302 static void atl1_tx_queue(struct atl1_adapter *adapter, u16 count,
2303 struct tx_packet_desc *ptpd)
2305 struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
2306 struct atl1_buffer *buffer_info;
2307 struct tx_packet_desc *tpd;
2310 u16 next_to_use = (u16) atomic_read(&tpd_ring->next_to_use);
2312 for (j = 0; j < count; j++) {
2313 buffer_info = &tpd_ring->buffer_info[next_to_use];
2314 tpd = ATL1_TPD_DESC(&adapter->tpd_ring, next_to_use);
2316 memcpy(tpd, ptpd, sizeof(struct tx_packet_desc));
2317 tpd->buffer_addr = cpu_to_le64(buffer_info->dma);
2318 tpd->word2 &= ~(TPD_BUFLEN_MASK << TPD_BUFLEN_SHIFT);
2319 tpd->word2 |= (cpu_to_le16(buffer_info->length) &
2320 TPD_BUFLEN_MASK) << TPD_BUFLEN_SHIFT;
2323 * if this is the first packet in a TSO chain, set
2324 * TPD_HDRFLAG, otherwise, clear it.
2326 val = (tpd->word3 >> TPD_SEGMENT_EN_SHIFT) &
2327 TPD_SEGMENT_EN_MASK;
2330 tpd->word3 |= 1 << TPD_HDRFLAG_SHIFT;
2332 tpd->word3 &= ~(1 << TPD_HDRFLAG_SHIFT);
2335 if (j == (count - 1))
2336 tpd->word3 |= 1 << TPD_EOP_SHIFT;
2338 if (++next_to_use == tpd_ring->count)
2342 * Force memory writes to complete before letting h/w
2343 * know there are new descriptors to fetch. (Only
2344 * applicable for weak-ordered memory model archs,
2349 atomic_set(&tpd_ring->next_to_use, next_to_use);
2352 static netdev_tx_t atl1_xmit_frame(struct sk_buff *skb,
2353 struct net_device *netdev)
2355 struct atl1_adapter *adapter = netdev_priv(netdev);
2356 struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
2361 struct tx_packet_desc *ptpd;
2363 unsigned int nr_frags = 0;
2364 unsigned int mss = 0;
2366 unsigned int proto_hdr_len;
2368 len = skb_headlen(skb);
2370 if (unlikely(skb->len <= 0)) {
2371 dev_kfree_skb_any(skb);
2372 return NETDEV_TX_OK;
2375 nr_frags = skb_shinfo(skb)->nr_frags;
2376 for (f = 0; f < nr_frags; f++) {
2377 unsigned int f_size = skb_frag_size(&skb_shinfo(skb)->frags[f]);
2378 count += (f_size + ATL1_MAX_TX_BUF_LEN - 1) /
2379 ATL1_MAX_TX_BUF_LEN;
2382 mss = skb_shinfo(skb)->gso_size;
2384 if (skb->protocol == htons(ETH_P_IP)) {
2385 proto_hdr_len = (skb_transport_offset(skb) +
2387 if (unlikely(proto_hdr_len > len)) {
2388 dev_kfree_skb_any(skb);
2389 return NETDEV_TX_OK;
2391 /* need additional TPD ? */
2392 if (proto_hdr_len != len)
2393 count += (len - proto_hdr_len +
2394 ATL1_MAX_TX_BUF_LEN - 1) /
2395 ATL1_MAX_TX_BUF_LEN;
2399 if (atl1_tpd_avail(&adapter->tpd_ring) < count) {
2400 /* not enough descriptors */
2401 netif_stop_queue(netdev);
2402 if (netif_msg_tx_queued(adapter))
2403 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
2405 return NETDEV_TX_BUSY;
2408 ptpd = ATL1_TPD_DESC(tpd_ring,
2409 (u16) atomic_read(&tpd_ring->next_to_use));
2410 memset(ptpd, 0, sizeof(struct tx_packet_desc));
2412 if (vlan_tx_tag_present(skb)) {
2413 vlan_tag = vlan_tx_tag_get(skb);
2414 vlan_tag = (vlan_tag << 4) | (vlan_tag >> 13) |
2415 ((vlan_tag >> 9) & 0x8);
2416 ptpd->word3 |= 1 << TPD_INS_VL_TAG_SHIFT;
2417 ptpd->word2 |= (vlan_tag & TPD_VLANTAG_MASK) <<
2421 tso = atl1_tso(adapter, skb, ptpd);
2423 dev_kfree_skb_any(skb);
2424 return NETDEV_TX_OK;
2428 ret_val = atl1_tx_csum(adapter, skb, ptpd);
2430 dev_kfree_skb_any(skb);
2431 return NETDEV_TX_OK;
2435 atl1_tx_map(adapter, skb, ptpd);
2436 atl1_tx_queue(adapter, count, ptpd);
2437 atl1_update_mailbox(adapter);
2439 return NETDEV_TX_OK;
2443 * atl1_intr - Interrupt Handler
2444 * @irq: interrupt number
2445 * @data: pointer to a network interface device structure
2446 * @pt_regs: CPU registers structure
2448 static irqreturn_t atl1_intr(int irq, void *data)
2450 struct atl1_adapter *adapter = netdev_priv(data);
2454 status = adapter->cmb.cmb->int_stats;
2459 /* clear CMB interrupt status at once */
2460 adapter->cmb.cmb->int_stats = 0;
2462 if (status & ISR_GPHY) /* clear phy status */
2463 atlx_clear_phy_int(adapter);
2465 /* clear ISR status, and Enable CMB DMA/Disable Interrupt */
2466 iowrite32(status | ISR_DIS_INT, adapter->hw.hw_addr + REG_ISR);
2468 /* check if SMB intr */
2469 if (status & ISR_SMB)
2470 atl1_inc_smb(adapter);
2472 /* check if PCIE PHY Link down */
2473 if (status & ISR_PHY_LINKDOWN) {
2474 if (netif_msg_intr(adapter))
2475 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
2476 "pcie phy link down %x\n", status);
2477 if (netif_running(adapter->netdev)) { /* reset MAC */
2478 iowrite32(0, adapter->hw.hw_addr + REG_IMR);
2479 schedule_work(&adapter->pcie_dma_to_rst_task);
2484 /* check if DMA read/write error ? */
2485 if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
2486 if (netif_msg_intr(adapter))
2487 dev_printk(KERN_DEBUG, &adapter->pdev->dev,
2488 "pcie DMA r/w error (status = 0x%x)\n",
2490 iowrite32(0, adapter->hw.hw_addr + REG_IMR);
2491 schedule_work(&adapter->pcie_dma_to_rst_task);
2496 if (status & ISR_GPHY) {
2497 adapter->soft_stats.tx_carrier_errors++;
2498 atl1_check_for_link(adapter);
2501 /* transmit event */
2502 if (status & ISR_CMB_TX)
2503 atl1_intr_tx(adapter);
2506 if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN |
2507 ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
2508 ISR_HOST_RRD_OV | ISR_CMB_RX))) {
2509 if (status & (ISR_RXF_OV | ISR_RFD_UNRUN |
2510 ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
2512 if (netif_msg_intr(adapter))
2513 dev_printk(KERN_DEBUG,
2514 &adapter->pdev->dev,
2515 "rx exception, ISR = 0x%x\n",
2517 atl1_intr_rx(adapter);
2523 } while ((status = adapter->cmb.cmb->int_stats));
2525 /* re-enable Interrupt */
2526 iowrite32(ISR_DIS_SMB | ISR_DIS_DMA, adapter->hw.hw_addr + REG_ISR);
2532 * atl1_phy_config - Timer Call-back
2533 * @data: pointer to netdev cast into an unsigned long
2535 static void atl1_phy_config(unsigned long data)
2537 struct atl1_adapter *adapter = (struct atl1_adapter *)data;
2538 struct atl1_hw *hw = &adapter->hw;
2539 unsigned long flags;
2541 spin_lock_irqsave(&adapter->lock, flags);
2542 adapter->phy_timer_pending = false;
2543 atl1_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg);
2544 atl1_write_phy_reg(hw, MII_ATLX_CR, hw->mii_1000t_ctrl_reg);
2545 atl1_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN);
2546 spin_unlock_irqrestore(&adapter->lock, flags);
2550 * Orphaned vendor comment left intact here:
2552 * If TPD Buffer size equal to 0, PCIE DMAR_TO_INT
2553 * will assert. We do soft reset <0x1400=1> according
2554 * with the SPEC. BUT, it seemes that PCIE or DMA
2555 * state-machine will not be reset. DMAR_TO_INT will
2556 * assert again and again.
2560 static int atl1_reset(struct atl1_adapter *adapter)
2563 ret = atl1_reset_hw(&adapter->hw);
2566 return atl1_init_hw(&adapter->hw);
2569 static s32 atl1_up(struct atl1_adapter *adapter)
2571 struct net_device *netdev = adapter->netdev;
2575 /* hardware has been reset, we need to reload some things */
2576 atlx_set_multi(netdev);
2577 atl1_init_ring_ptrs(adapter);
2578 atlx_restore_vlan(adapter);
2579 err = atl1_alloc_rx_buffers(adapter);
2581 /* no RX BUFFER allocated */
2584 if (unlikely(atl1_configure(adapter))) {
2589 err = pci_enable_msi(adapter->pdev);
2591 if (netif_msg_ifup(adapter))
2592 dev_info(&adapter->pdev->dev,
2593 "Unable to enable MSI: %d\n", err);
2594 irq_flags |= IRQF_SHARED;
2597 err = request_irq(adapter->pdev->irq, atl1_intr, irq_flags,
2598 netdev->name, netdev);
2602 atlx_irq_enable(adapter);
2603 atl1_check_link(adapter);
2604 netif_start_queue(netdev);
2608 pci_disable_msi(adapter->pdev);
2609 /* free rx_buffers */
2610 atl1_clean_rx_ring(adapter);
2614 static void atl1_down(struct atl1_adapter *adapter)
2616 struct net_device *netdev = adapter->netdev;
2618 netif_stop_queue(netdev);
2619 del_timer_sync(&adapter->phy_config_timer);
2620 adapter->phy_timer_pending = false;
2622 atlx_irq_disable(adapter);
2623 free_irq(adapter->pdev->irq, netdev);
2624 pci_disable_msi(adapter->pdev);
2625 atl1_reset_hw(&adapter->hw);
2626 adapter->cmb.cmb->int_stats = 0;
2628 adapter->link_speed = SPEED_0;
2629 adapter->link_duplex = -1;
2630 netif_carrier_off(netdev);
2632 atl1_clean_tx_ring(adapter);
2633 atl1_clean_rx_ring(adapter);
2636 static void atl1_tx_timeout_task(struct work_struct *work)
2638 struct atl1_adapter *adapter =
2639 container_of(work, struct atl1_adapter, tx_timeout_task);
2640 struct net_device *netdev = adapter->netdev;
2642 netif_device_detach(netdev);
2645 netif_device_attach(netdev);
2649 * atl1_change_mtu - Change the Maximum Transfer Unit
2650 * @netdev: network interface device structure
2651 * @new_mtu: new value for maximum frame size
2653 * Returns 0 on success, negative on failure
2655 static int atl1_change_mtu(struct net_device *netdev, int new_mtu)
2657 struct atl1_adapter *adapter = netdev_priv(netdev);
2658 int old_mtu = netdev->mtu;
2659 int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
2661 if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
2662 (max_frame > MAX_JUMBO_FRAME_SIZE)) {
2663 if (netif_msg_link(adapter))
2664 dev_warn(&adapter->pdev->dev, "invalid MTU setting\n");
2668 adapter->hw.max_frame_size = max_frame;
2669 adapter->hw.tx_jumbo_task_th = (max_frame + 7) >> 3;
2670 adapter->rx_buffer_len = (max_frame + 7) & ~7;
2671 adapter->hw.rx_jumbo_th = adapter->rx_buffer_len / 8;
2673 netdev->mtu = new_mtu;
2674 if ((old_mtu != new_mtu) && netif_running(netdev)) {
2683 * atl1_open - Called when a network interface is made active
2684 * @netdev: network interface device structure
2686 * Returns 0 on success, negative value on failure
2688 * The open entry point is called when a network interface is made
2689 * active by the system (IFF_UP). At this point all resources needed
2690 * for transmit and receive operations are allocated, the interrupt
2691 * handler is registered with the OS, the watchdog timer is started,
2692 * and the stack is notified that the interface is ready.
2694 static int atl1_open(struct net_device *netdev)
2696 struct atl1_adapter *adapter = netdev_priv(netdev);
2699 netif_carrier_off(netdev);
2701 /* allocate transmit descriptors */
2702 err = atl1_setup_ring_resources(adapter);
2706 err = atl1_up(adapter);
2713 atl1_reset(adapter);
2718 * atl1_close - Disables a network interface
2719 * @netdev: network interface device structure
2721 * Returns 0, this is not allowed to fail
2723 * The close entry point is called when an interface is de-activated
2724 * by the OS. The hardware is still under the drivers control, but
2725 * needs to be disabled. A global MAC reset is issued to stop the
2726 * hardware, and all transmit and receive resources are freed.
2728 static int atl1_close(struct net_device *netdev)
2730 struct atl1_adapter *adapter = netdev_priv(netdev);
2732 atl1_free_ring_resources(adapter);
2737 static int atl1_suspend(struct device *dev)
2739 struct pci_dev *pdev = to_pci_dev(dev);
2740 struct net_device *netdev = pci_get_drvdata(pdev);
2741 struct atl1_adapter *adapter = netdev_priv(netdev);
2742 struct atl1_hw *hw = &adapter->hw;
2744 u32 wufc = adapter->wol;
2749 netif_device_detach(netdev);
2750 if (netif_running(netdev))
2753 atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
2754 atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
2755 val = ctrl & BMSR_LSTATUS;
2757 wufc &= ~ATLX_WUFC_LNKC;
2762 val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
2764 if (netif_msg_ifdown(adapter))
2765 dev_printk(KERN_DEBUG, &pdev->dev,
2766 "error getting speed/duplex\n");
2772 /* enable magic packet WOL */
2773 if (wufc & ATLX_WUFC_MAG)
2774 ctrl |= (WOL_MAGIC_EN | WOL_MAGIC_PME_EN);
2775 iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL);
2776 ioread32(hw->hw_addr + REG_WOL_CTRL);
2778 /* configure the mac */
2779 ctrl = MAC_CTRL_RX_EN;
2780 ctrl |= ((u32)((speed == SPEED_1000) ? MAC_CTRL_SPEED_1000 :
2781 MAC_CTRL_SPEED_10_100) << MAC_CTRL_SPEED_SHIFT);
2782 if (duplex == FULL_DUPLEX)
2783 ctrl |= MAC_CTRL_DUPLX;
2784 ctrl |= (((u32)adapter->hw.preamble_len &
2785 MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
2786 __atlx_vlan_mode(netdev->features, &ctrl);
2787 if (wufc & ATLX_WUFC_MAG)
2788 ctrl |= MAC_CTRL_BC_EN;
2789 iowrite32(ctrl, hw->hw_addr + REG_MAC_CTRL);
2790 ioread32(hw->hw_addr + REG_MAC_CTRL);
2793 ctrl = ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
2794 ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
2795 iowrite32(ctrl, hw->hw_addr + REG_PCIE_PHYMISC);
2796 ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
2798 ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN);
2799 iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL);
2800 ioread32(hw->hw_addr + REG_WOL_CTRL);
2801 iowrite32(0, hw->hw_addr + REG_MAC_CTRL);
2802 ioread32(hw->hw_addr + REG_MAC_CTRL);
2803 hw->phy_configured = false;
2809 iowrite32(0, hw->hw_addr + REG_WOL_CTRL);
2810 ioread32(hw->hw_addr + REG_WOL_CTRL);
2811 ctrl = ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
2812 ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
2813 iowrite32(ctrl, hw->hw_addr + REG_PCIE_PHYMISC);
2814 ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
2815 hw->phy_configured = false;
2820 static int atl1_resume(struct device *dev)
2822 struct pci_dev *pdev = to_pci_dev(dev);
2823 struct net_device *netdev = pci_get_drvdata(pdev);
2824 struct atl1_adapter *adapter = netdev_priv(netdev);
2826 iowrite32(0, adapter->hw.hw_addr + REG_WOL_CTRL);
2828 atl1_reset_hw(&adapter->hw);
2830 if (netif_running(netdev)) {
2831 adapter->cmb.cmb->int_stats = 0;
2834 netif_device_attach(netdev);
2839 static SIMPLE_DEV_PM_OPS(atl1_pm_ops, atl1_suspend, atl1_resume);
2840 #define ATL1_PM_OPS (&atl1_pm_ops)
2844 static int atl1_suspend(struct device *dev) { return 0; }
2846 #define ATL1_PM_OPS NULL
2849 static void atl1_shutdown(struct pci_dev *pdev)
2851 struct net_device *netdev = pci_get_drvdata(pdev);
2852 struct atl1_adapter *adapter = netdev_priv(netdev);
2854 atl1_suspend(&pdev->dev);
2855 pci_wake_from_d3(pdev, adapter->wol);
2856 pci_set_power_state(pdev, PCI_D3hot);
2859 #ifdef CONFIG_NET_POLL_CONTROLLER
2860 static void atl1_poll_controller(struct net_device *netdev)
2862 disable_irq(netdev->irq);
2863 atl1_intr(netdev->irq, netdev);
2864 enable_irq(netdev->irq);
2868 static const struct net_device_ops atl1_netdev_ops = {
2869 .ndo_open = atl1_open,
2870 .ndo_stop = atl1_close,
2871 .ndo_start_xmit = atl1_xmit_frame,
2872 .ndo_set_rx_mode = atlx_set_multi,
2873 .ndo_validate_addr = eth_validate_addr,
2874 .ndo_set_mac_address = atl1_set_mac,
2875 .ndo_change_mtu = atl1_change_mtu,
2876 .ndo_fix_features = atlx_fix_features,
2877 .ndo_set_features = atlx_set_features,
2878 .ndo_do_ioctl = atlx_ioctl,
2879 .ndo_tx_timeout = atlx_tx_timeout,
2880 #ifdef CONFIG_NET_POLL_CONTROLLER
2881 .ndo_poll_controller = atl1_poll_controller,
2886 * atl1_probe - Device Initialization Routine
2887 * @pdev: PCI device information struct
2888 * @ent: entry in atl1_pci_tbl
2890 * Returns 0 on success, negative on failure
2892 * atl1_probe initializes an adapter identified by a pci_dev structure.
2893 * The OS initialization, configuring of the adapter private structure,
2894 * and a hardware reset occur.
2896 static int __devinit atl1_probe(struct pci_dev *pdev,
2897 const struct pci_device_id *ent)
2899 struct net_device *netdev;
2900 struct atl1_adapter *adapter;
2901 static int cards_found = 0;
2904 err = pci_enable_device(pdev);
2909 * The atl1 chip can DMA to 64-bit addresses, but it uses a single
2910 * shared register for the high 32 bits, so only a single, aligned,
2911 * 4 GB physical address range can be used at a time.
2913 * Supporting 64-bit DMA on this hardware is more trouble than it's
2914 * worth. It is far easier to limit to 32-bit DMA than update
2915 * various kernel subsystems to support the mechanics required by a
2916 * fixed-high-32-bit system.
2918 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2920 dev_err(&pdev->dev, "no usable DMA configuration\n");
2924 * Mark all PCI regions associated with PCI device
2925 * pdev as being reserved by owner atl1_driver_name
2927 err = pci_request_regions(pdev, ATLX_DRIVER_NAME);
2929 goto err_request_regions;
2932 * Enables bus-mastering on the device and calls
2933 * pcibios_set_master to do the needed arch specific settings
2935 pci_set_master(pdev);
2937 netdev = alloc_etherdev(sizeof(struct atl1_adapter));
2940 goto err_alloc_etherdev;
2942 SET_NETDEV_DEV(netdev, &pdev->dev);
2944 pci_set_drvdata(pdev, netdev);
2945 adapter = netdev_priv(netdev);
2946 adapter->netdev = netdev;
2947 adapter->pdev = pdev;
2948 adapter->hw.back = adapter;
2949 adapter->msg_enable = netif_msg_init(debug, atl1_default_msg);
2951 adapter->hw.hw_addr = pci_iomap(pdev, 0, 0);
2952 if (!adapter->hw.hw_addr) {
2956 /* get device revision number */
2957 adapter->hw.dev_rev = ioread16(adapter->hw.hw_addr +
2958 (REG_MASTER_CTRL + 2));
2959 if (netif_msg_probe(adapter))
2960 dev_info(&pdev->dev, "version %s\n", ATLX_DRIVER_VERSION);
2962 /* set default ring resource counts */
2963 adapter->rfd_ring.count = adapter->rrd_ring.count = ATL1_DEFAULT_RFD;
2964 adapter->tpd_ring.count = ATL1_DEFAULT_TPD;
2966 adapter->mii.dev = netdev;
2967 adapter->mii.mdio_read = mdio_read;
2968 adapter->mii.mdio_write = mdio_write;
2969 adapter->mii.phy_id_mask = 0x1f;
2970 adapter->mii.reg_num_mask = 0x1f;
2972 netdev->netdev_ops = &atl1_netdev_ops;
2973 netdev->watchdog_timeo = 5 * HZ;
2975 netdev->ethtool_ops = &atl1_ethtool_ops;
2976 adapter->bd_number = cards_found;
2978 /* setup the private structure */
2979 err = atl1_sw_init(adapter);
2983 netdev->features = NETIF_F_HW_CSUM;
2984 netdev->features |= NETIF_F_SG;
2985 netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
2987 netdev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG | NETIF_F_TSO |
2990 /* is this valid? see atl1_setup_mac_ctrl() */
2991 netdev->features |= NETIF_F_RXCSUM;
2994 * patch for some L1 of old version,
2995 * the final version of L1 may not need these
2998 /* atl1_pcie_patch(adapter); */
3000 /* really reset GPHY core */
3001 iowrite16(0, adapter->hw.hw_addr + REG_PHY_ENABLE);
3004 * reset the controller to
3005 * put the device in a known good starting state
3007 if (atl1_reset_hw(&adapter->hw)) {
3012 /* copy the MAC address out of the EEPROM */
3013 if (atl1_read_mac_addr(&adapter->hw)) {
3014 /* mark random mac */
3015 netdev->addr_assign_type |= NET_ADDR_RANDOM;
3017 memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len);
3019 if (!is_valid_ether_addr(netdev->dev_addr)) {
3024 atl1_check_options(adapter);
3026 /* pre-init the MAC, and setup link */
3027 err = atl1_init_hw(&adapter->hw);
3033 atl1_pcie_patch(adapter);
3034 /* assume we have no link for now */
3035 netif_carrier_off(netdev);
3037 setup_timer(&adapter->phy_config_timer, atl1_phy_config,
3038 (unsigned long)adapter);
3039 adapter->phy_timer_pending = false;
3041 INIT_WORK(&adapter->tx_timeout_task, atl1_tx_timeout_task);
3043 INIT_WORK(&adapter->link_chg_task, atlx_link_chg_task);
3045 INIT_WORK(&adapter->pcie_dma_to_rst_task, atl1_tx_timeout_task);
3047 err = register_netdev(netdev);
3052 atl1_via_workaround(adapter);
3056 pci_iounmap(pdev, adapter->hw.hw_addr);
3058 free_netdev(netdev);
3060 pci_release_regions(pdev);
3062 err_request_regions:
3063 pci_disable_device(pdev);
3068 * atl1_remove - Device Removal Routine
3069 * @pdev: PCI device information struct
3071 * atl1_remove is called by the PCI subsystem to alert the driver
3072 * that it should release a PCI device. The could be caused by a
3073 * Hot-Plug event, or because the driver is going to be removed from
3076 static void __devexit atl1_remove(struct pci_dev *pdev)
3078 struct net_device *netdev = pci_get_drvdata(pdev);
3079 struct atl1_adapter *adapter;
3080 /* Device not available. Return. */
3084 adapter = netdev_priv(netdev);
3087 * Some atl1 boards lack persistent storage for their MAC, and get it
3088 * from the BIOS during POST. If we've been messing with the MAC
3089 * address, we need to save the permanent one.
3091 if (memcmp(adapter->hw.mac_addr, adapter->hw.perm_mac_addr, ETH_ALEN)) {
3092 memcpy(adapter->hw.mac_addr, adapter->hw.perm_mac_addr,
3094 atl1_set_mac_addr(&adapter->hw);
3097 iowrite16(0, adapter->hw.hw_addr + REG_PHY_ENABLE);
3098 unregister_netdev(netdev);
3099 pci_iounmap(pdev, adapter->hw.hw_addr);
3100 pci_release_regions(pdev);
3101 free_netdev(netdev);
3102 pci_disable_device(pdev);
3105 static struct pci_driver atl1_driver = {
3106 .name = ATLX_DRIVER_NAME,
3107 .id_table = atl1_pci_tbl,
3108 .probe = atl1_probe,
3109 .remove = __devexit_p(atl1_remove),
3110 .shutdown = atl1_shutdown,
3111 .driver.pm = ATL1_PM_OPS,
3115 * atl1_exit_module - Driver Exit Cleanup Routine
3117 * atl1_exit_module is called just before the driver is removed
3120 static void __exit atl1_exit_module(void)
3122 pci_unregister_driver(&atl1_driver);
3126 * atl1_init_module - Driver Registration Routine
3128 * atl1_init_module is the first routine called when the driver is
3129 * loaded. All it does is register with the PCI subsystem.
3131 static int __init atl1_init_module(void)
3133 return pci_register_driver(&atl1_driver);
3136 module_init(atl1_init_module);
3137 module_exit(atl1_exit_module);
3140 char stat_string[ETH_GSTRING_LEN];
3145 #define ATL1_STAT(m) \
3146 sizeof(((struct atl1_adapter *)0)->m), offsetof(struct atl1_adapter, m)
3148 static struct atl1_stats atl1_gstrings_stats[] = {
3149 {"rx_packets", ATL1_STAT(soft_stats.rx_packets)},
3150 {"tx_packets", ATL1_STAT(soft_stats.tx_packets)},
3151 {"rx_bytes", ATL1_STAT(soft_stats.rx_bytes)},
3152 {"tx_bytes", ATL1_STAT(soft_stats.tx_bytes)},
3153 {"rx_errors", ATL1_STAT(soft_stats.rx_errors)},
3154 {"tx_errors", ATL1_STAT(soft_stats.tx_errors)},
3155 {"multicast", ATL1_STAT(soft_stats.multicast)},
3156 {"collisions", ATL1_STAT(soft_stats.collisions)},
3157 {"rx_length_errors", ATL1_STAT(soft_stats.rx_length_errors)},
3158 {"rx_over_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
3159 {"rx_crc_errors", ATL1_STAT(soft_stats.rx_crc_errors)},
3160 {"rx_frame_errors", ATL1_STAT(soft_stats.rx_frame_errors)},
3161 {"rx_fifo_errors", ATL1_STAT(soft_stats.rx_fifo_errors)},
3162 {"rx_missed_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
3163 {"tx_aborted_errors", ATL1_STAT(soft_stats.tx_aborted_errors)},
3164 {"tx_carrier_errors", ATL1_STAT(soft_stats.tx_carrier_errors)},
3165 {"tx_fifo_errors", ATL1_STAT(soft_stats.tx_fifo_errors)},
3166 {"tx_window_errors", ATL1_STAT(soft_stats.tx_window_errors)},
3167 {"tx_abort_exce_coll", ATL1_STAT(soft_stats.excecol)},
3168 {"tx_abort_late_coll", ATL1_STAT(soft_stats.latecol)},
3169 {"tx_deferred_ok", ATL1_STAT(soft_stats.deffer)},
3170 {"tx_single_coll_ok", ATL1_STAT(soft_stats.scc)},
3171 {"tx_multi_coll_ok", ATL1_STAT(soft_stats.mcc)},
3172 {"tx_underun", ATL1_STAT(soft_stats.tx_underun)},
3173 {"tx_trunc", ATL1_STAT(soft_stats.tx_trunc)},
3174 {"tx_pause", ATL1_STAT(soft_stats.tx_pause)},
3175 {"rx_pause", ATL1_STAT(soft_stats.rx_pause)},
3176 {"rx_rrd_ov", ATL1_STAT(soft_stats.rx_rrd_ov)},
3177 {"rx_trunc", ATL1_STAT(soft_stats.rx_trunc)}
3180 static void atl1_get_ethtool_stats(struct net_device *netdev,
3181 struct ethtool_stats *stats, u64 *data)
3183 struct atl1_adapter *adapter = netdev_priv(netdev);
3187 for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
3188 p = (char *)adapter+atl1_gstrings_stats[i].stat_offset;
3189 data[i] = (atl1_gstrings_stats[i].sizeof_stat ==
3190 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
3195 static int atl1_get_sset_count(struct net_device *netdev, int sset)
3199 return ARRAY_SIZE(atl1_gstrings_stats);
3205 static int atl1_get_settings(struct net_device *netdev,
3206 struct ethtool_cmd *ecmd)
3208 struct atl1_adapter *adapter = netdev_priv(netdev);
3209 struct atl1_hw *hw = &adapter->hw;
3211 ecmd->supported = (SUPPORTED_10baseT_Half |
3212 SUPPORTED_10baseT_Full |
3213 SUPPORTED_100baseT_Half |
3214 SUPPORTED_100baseT_Full |
3215 SUPPORTED_1000baseT_Full |
3216 SUPPORTED_Autoneg | SUPPORTED_TP);
3217 ecmd->advertising = ADVERTISED_TP;
3218 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
3219 hw->media_type == MEDIA_TYPE_1000M_FULL) {
3220 ecmd->advertising |= ADVERTISED_Autoneg;
3221 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR) {
3222 ecmd->advertising |= ADVERTISED_Autoneg;
3223 ecmd->advertising |=
3224 (ADVERTISED_10baseT_Half |
3225 ADVERTISED_10baseT_Full |
3226 ADVERTISED_100baseT_Half |
3227 ADVERTISED_100baseT_Full |
3228 ADVERTISED_1000baseT_Full);
3230 ecmd->advertising |= (ADVERTISED_1000baseT_Full);
3232 ecmd->port = PORT_TP;
3233 ecmd->phy_address = 0;
3234 ecmd->transceiver = XCVR_INTERNAL;
3236 if (netif_carrier_ok(adapter->netdev)) {
3237 u16 link_speed, link_duplex;
3238 atl1_get_speed_and_duplex(hw, &link_speed, &link_duplex);
3239 ethtool_cmd_speed_set(ecmd, link_speed);
3240 if (link_duplex == FULL_DUPLEX)
3241 ecmd->duplex = DUPLEX_FULL;
3243 ecmd->duplex = DUPLEX_HALF;
3245 ethtool_cmd_speed_set(ecmd, -1);
3248 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
3249 hw->media_type == MEDIA_TYPE_1000M_FULL)
3250 ecmd->autoneg = AUTONEG_ENABLE;
3252 ecmd->autoneg = AUTONEG_DISABLE;
3257 static int atl1_set_settings(struct net_device *netdev,
3258 struct ethtool_cmd *ecmd)
3260 struct atl1_adapter *adapter = netdev_priv(netdev);
3261 struct atl1_hw *hw = &adapter->hw;
3264 u16 old_media_type = hw->media_type;
3266 if (netif_running(adapter->netdev)) {
3267 if (netif_msg_link(adapter))
3268 dev_dbg(&adapter->pdev->dev,
3269 "ethtool shutting down adapter\n");
3273 if (ecmd->autoneg == AUTONEG_ENABLE)
3274 hw->media_type = MEDIA_TYPE_AUTO_SENSOR;
3276 u32 speed = ethtool_cmd_speed(ecmd);
3277 if (speed == SPEED_1000) {
3278 if (ecmd->duplex != DUPLEX_FULL) {
3279 if (netif_msg_link(adapter))
3280 dev_warn(&adapter->pdev->dev,
3281 "1000M half is invalid\n");
3285 hw->media_type = MEDIA_TYPE_1000M_FULL;
3286 } else if (speed == SPEED_100) {
3287 if (ecmd->duplex == DUPLEX_FULL)
3288 hw->media_type = MEDIA_TYPE_100M_FULL;
3290 hw->media_type = MEDIA_TYPE_100M_HALF;
3292 if (ecmd->duplex == DUPLEX_FULL)
3293 hw->media_type = MEDIA_TYPE_10M_FULL;
3295 hw->media_type = MEDIA_TYPE_10M_HALF;
3298 switch (hw->media_type) {
3299 case MEDIA_TYPE_AUTO_SENSOR:
3301 ADVERTISED_10baseT_Half |
3302 ADVERTISED_10baseT_Full |
3303 ADVERTISED_100baseT_Half |
3304 ADVERTISED_100baseT_Full |
3305 ADVERTISED_1000baseT_Full |
3306 ADVERTISED_Autoneg | ADVERTISED_TP;
3308 case MEDIA_TYPE_1000M_FULL:
3310 ADVERTISED_1000baseT_Full |
3311 ADVERTISED_Autoneg | ADVERTISED_TP;
3314 ecmd->advertising = 0;
3317 if (atl1_phy_setup_autoneg_adv(hw)) {
3319 if (netif_msg_link(adapter))
3320 dev_warn(&adapter->pdev->dev,
3321 "invalid ethtool speed/duplex setting\n");
3324 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
3325 hw->media_type == MEDIA_TYPE_1000M_FULL)
3326 phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
3328 switch (hw->media_type) {
3329 case MEDIA_TYPE_100M_FULL:
3331 MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
3334 case MEDIA_TYPE_100M_HALF:
3335 phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
3337 case MEDIA_TYPE_10M_FULL:
3339 MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
3342 /* MEDIA_TYPE_10M_HALF: */
3343 phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
3347 atl1_write_phy_reg(hw, MII_BMCR, phy_data);
3350 hw->media_type = old_media_type;
3352 if (netif_running(adapter->netdev)) {
3353 if (netif_msg_link(adapter))
3354 dev_dbg(&adapter->pdev->dev,
3355 "ethtool starting adapter\n");
3357 } else if (!ret_val) {
3358 if (netif_msg_link(adapter))
3359 dev_dbg(&adapter->pdev->dev,
3360 "ethtool resetting adapter\n");
3361 atl1_reset(adapter);
3366 static void atl1_get_drvinfo(struct net_device *netdev,
3367 struct ethtool_drvinfo *drvinfo)
3369 struct atl1_adapter *adapter = netdev_priv(netdev);
3371 strlcpy(drvinfo->driver, ATLX_DRIVER_NAME, sizeof(drvinfo->driver));
3372 strlcpy(drvinfo->version, ATLX_DRIVER_VERSION,
3373 sizeof(drvinfo->version));
3374 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
3375 sizeof(drvinfo->bus_info));
3376 drvinfo->eedump_len = ATL1_EEDUMP_LEN;
3379 static void atl1_get_wol(struct net_device *netdev,
3380 struct ethtool_wolinfo *wol)
3382 struct atl1_adapter *adapter = netdev_priv(netdev);
3384 wol->supported = WAKE_MAGIC;
3386 if (adapter->wol & ATLX_WUFC_MAG)
3387 wol->wolopts |= WAKE_MAGIC;
3390 static int atl1_set_wol(struct net_device *netdev,
3391 struct ethtool_wolinfo *wol)
3393 struct atl1_adapter *adapter = netdev_priv(netdev);
3395 if (wol->wolopts & (WAKE_PHY | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
3396 WAKE_ARP | WAKE_MAGICSECURE))
3399 if (wol->wolopts & WAKE_MAGIC)
3400 adapter->wol |= ATLX_WUFC_MAG;
3402 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
3407 static u32 atl1_get_msglevel(struct net_device *netdev)
3409 struct atl1_adapter *adapter = netdev_priv(netdev);
3410 return adapter->msg_enable;
3413 static void atl1_set_msglevel(struct net_device *netdev, u32 value)
3415 struct atl1_adapter *adapter = netdev_priv(netdev);
3416 adapter->msg_enable = value;
3419 static int atl1_get_regs_len(struct net_device *netdev)
3421 return ATL1_REG_COUNT * sizeof(u32);
3424 static void atl1_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
3427 struct atl1_adapter *adapter = netdev_priv(netdev);
3428 struct atl1_hw *hw = &adapter->hw;
3432 for (i = 0; i < ATL1_REG_COUNT; i++) {
3434 * This switch statement avoids reserved regions
3435 * of register space.
3460 /* reserved region; don't read it */
3464 /* unreserved region */
3465 regbuf[i] = ioread32(hw->hw_addr + (i * sizeof(u32)));
3470 static void atl1_get_ringparam(struct net_device *netdev,
3471 struct ethtool_ringparam *ring)
3473 struct atl1_adapter *adapter = netdev_priv(netdev);
3474 struct atl1_tpd_ring *txdr = &adapter->tpd_ring;
3475 struct atl1_rfd_ring *rxdr = &adapter->rfd_ring;
3477 ring->rx_max_pending = ATL1_MAX_RFD;
3478 ring->tx_max_pending = ATL1_MAX_TPD;
3479 ring->rx_pending = rxdr->count;
3480 ring->tx_pending = txdr->count;
3483 static int atl1_set_ringparam(struct net_device *netdev,
3484 struct ethtool_ringparam *ring)
3486 struct atl1_adapter *adapter = netdev_priv(netdev);
3487 struct atl1_tpd_ring *tpdr = &adapter->tpd_ring;
3488 struct atl1_rrd_ring *rrdr = &adapter->rrd_ring;
3489 struct atl1_rfd_ring *rfdr = &adapter->rfd_ring;
3491 struct atl1_tpd_ring tpd_old, tpd_new;
3492 struct atl1_rfd_ring rfd_old, rfd_new;
3493 struct atl1_rrd_ring rrd_old, rrd_new;
3494 struct atl1_ring_header rhdr_old, rhdr_new;
3495 struct atl1_smb smb;
3496 struct atl1_cmb cmb;
3499 tpd_old = adapter->tpd_ring;
3500 rfd_old = adapter->rfd_ring;
3501 rrd_old = adapter->rrd_ring;
3502 rhdr_old = adapter->ring_header;
3504 if (netif_running(adapter->netdev))
3507 rfdr->count = (u16) max(ring->rx_pending, (u32) ATL1_MIN_RFD);
3508 rfdr->count = rfdr->count > ATL1_MAX_RFD ? ATL1_MAX_RFD :
3510 rfdr->count = (rfdr->count + 3) & ~3;
3511 rrdr->count = rfdr->count;
3513 tpdr->count = (u16) max(ring->tx_pending, (u32) ATL1_MIN_TPD);
3514 tpdr->count = tpdr->count > ATL1_MAX_TPD ? ATL1_MAX_TPD :
3516 tpdr->count = (tpdr->count + 3) & ~3;
3518 if (netif_running(adapter->netdev)) {
3519 /* try to get new resources before deleting old */
3520 err = atl1_setup_ring_resources(adapter);
3522 goto err_setup_ring;
3525 * save the new, restore the old in order to free it,
3526 * then restore the new back again
3529 rfd_new = adapter->rfd_ring;
3530 rrd_new = adapter->rrd_ring;
3531 tpd_new = adapter->tpd_ring;
3532 rhdr_new = adapter->ring_header;
3533 adapter->rfd_ring = rfd_old;
3534 adapter->rrd_ring = rrd_old;
3535 adapter->tpd_ring = tpd_old;
3536 adapter->ring_header = rhdr_old;
3538 * Save SMB and CMB, since atl1_free_ring_resources
3543 atl1_free_ring_resources(adapter);
3544 adapter->rfd_ring = rfd_new;
3545 adapter->rrd_ring = rrd_new;
3546 adapter->tpd_ring = tpd_new;
3547 adapter->ring_header = rhdr_new;
3551 err = atl1_up(adapter);
3558 adapter->rfd_ring = rfd_old;
3559 adapter->rrd_ring = rrd_old;
3560 adapter->tpd_ring = tpd_old;
3561 adapter->ring_header = rhdr_old;
3566 static void atl1_get_pauseparam(struct net_device *netdev,
3567 struct ethtool_pauseparam *epause)
3569 struct atl1_adapter *adapter = netdev_priv(netdev);
3570 struct atl1_hw *hw = &adapter->hw;
3572 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
3573 hw->media_type == MEDIA_TYPE_1000M_FULL) {
3574 epause->autoneg = AUTONEG_ENABLE;
3576 epause->autoneg = AUTONEG_DISABLE;
3578 epause->rx_pause = 1;
3579 epause->tx_pause = 1;
3582 static int atl1_set_pauseparam(struct net_device *netdev,
3583 struct ethtool_pauseparam *epause)
3585 struct atl1_adapter *adapter = netdev_priv(netdev);
3586 struct atl1_hw *hw = &adapter->hw;
3588 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
3589 hw->media_type == MEDIA_TYPE_1000M_FULL) {
3590 epause->autoneg = AUTONEG_ENABLE;
3592 epause->autoneg = AUTONEG_DISABLE;
3595 epause->rx_pause = 1;
3596 epause->tx_pause = 1;
3601 static void atl1_get_strings(struct net_device *netdev, u32 stringset,
3607 switch (stringset) {
3609 for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
3610 memcpy(p, atl1_gstrings_stats[i].stat_string,
3612 p += ETH_GSTRING_LEN;
3618 static int atl1_nway_reset(struct net_device *netdev)
3620 struct atl1_adapter *adapter = netdev_priv(netdev);
3621 struct atl1_hw *hw = &adapter->hw;
3623 if (netif_running(netdev)) {
3627 if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
3628 hw->media_type == MEDIA_TYPE_1000M_FULL) {
3629 phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
3631 switch (hw->media_type) {
3632 case MEDIA_TYPE_100M_FULL:
3633 phy_data = MII_CR_FULL_DUPLEX |
3634 MII_CR_SPEED_100 | MII_CR_RESET;
3636 case MEDIA_TYPE_100M_HALF:
3637 phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
3639 case MEDIA_TYPE_10M_FULL:
3640 phy_data = MII_CR_FULL_DUPLEX |
3641 MII_CR_SPEED_10 | MII_CR_RESET;
3644 /* MEDIA_TYPE_10M_HALF */
3645 phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
3648 atl1_write_phy_reg(hw, MII_BMCR, phy_data);
3654 static const struct ethtool_ops atl1_ethtool_ops = {
3655 .get_settings = atl1_get_settings,
3656 .set_settings = atl1_set_settings,
3657 .get_drvinfo = atl1_get_drvinfo,
3658 .get_wol = atl1_get_wol,
3659 .set_wol = atl1_set_wol,
3660 .get_msglevel = atl1_get_msglevel,
3661 .set_msglevel = atl1_set_msglevel,
3662 .get_regs_len = atl1_get_regs_len,
3663 .get_regs = atl1_get_regs,
3664 .get_ringparam = atl1_get_ringparam,
3665 .set_ringparam = atl1_set_ringparam,
3666 .get_pauseparam = atl1_get_pauseparam,
3667 .set_pauseparam = atl1_set_pauseparam,
3668 .get_link = ethtool_op_get_link,
3669 .get_strings = atl1_get_strings,
3670 .nway_reset = atl1_nway_reset,
3671 .get_ethtool_stats = atl1_get_ethtool_stats,
3672 .get_sset_count = atl1_get_sset_count,