2 * Copyright (C) 2003 - 2009 NetXen, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20 * The full GNU General Public License is included in this distribution
21 * in the file called LICENSE.
23 * Contact Information:
27 * Cupertino, CA 95014-0701
31 #include "netxen_nic.h"
33 #define NETXEN_GB_MAC_SOFT_RESET 0x80000000
34 #define NETXEN_GB_MAC_RESET_PROT_BLK 0x000F0000
35 #define NETXEN_GB_MAC_ENABLE_TX_RX 0x00000005
36 #define NETXEN_GB_MAC_PAUSED_FRMS 0x00000020
38 static long phy_lock_timeout = 100000000;
40 static int phy_lock(struct netxen_adapter *adapter)
43 int done = 0, timeout = 0;
46 done = netxen_nic_reg_read(adapter,
47 NETXEN_PCIE_REG(PCIE_SEM3_LOCK));
50 if (timeout >= phy_lock_timeout) {
57 for (i = 0; i < 20; i++)
62 netxen_crb_writelit_adapter(adapter,
63 NETXEN_PHY_LOCK_ID, PHY_LOCK_DRIVER);
67 static int phy_unlock(struct netxen_adapter *adapter)
69 adapter->pci_read_immediate(adapter, NETXEN_PCIE_REG(PCIE_SEM3_UNLOCK));
75 * netxen_niu_gbe_phy_read - read a register from the GbE PHY via
76 * mii management interface.
78 * Note: The MII management interface goes through port 0.
79 * Individual phys are addressed as follows:
80 * @param phy [15:8] phy id
81 * @param reg [7:0] register number
83 * @returns 0 on success
87 int netxen_niu_gbe_phy_read(struct netxen_adapter *adapter, long reg,
93 long phy = adapter->physical_port;
99 if (phy_lock(adapter) != 0) {
104 * MII mgmt all goes through port 0 MAC interface,
105 * so it cannot be in reset
108 if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(0),
111 if (netxen_gb_get_soft_reset(mac_cfg0)) {
114 netxen_gb_tx_reset_pb(temp);
115 netxen_gb_rx_reset_pb(temp);
116 netxen_gb_tx_reset_mac(temp);
117 netxen_gb_rx_reset_mac(temp);
118 if (adapter->hw_write_wx(adapter,
119 NETXEN_NIU_GB_MAC_CONFIG_0(0),
126 netxen_gb_mii_mgmt_reg_addr(address, reg);
127 netxen_gb_mii_mgmt_phy_addr(address, phy);
128 if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_ADDR(0),
131 command = 0; /* turn off any prior activity */
132 if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
135 /* send read command */
136 netxen_gb_mii_mgmt_set_read_cycle(command);
137 if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
143 if (adapter->hw_read_wx(adapter,
144 NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
148 } while ((netxen_get_gb_mii_mgmt_busy(status)
149 || netxen_get_gb_mii_mgmt_notvalid(status))
150 && (timeout++ < NETXEN_NIU_PHY_WAITMAX));
152 if (timeout < NETXEN_NIU_PHY_WAITMAX) {
153 if (adapter->hw_read_wx(adapter,
154 NETXEN_NIU_GB_MII_MGMT_STATUS(0),
162 if (adapter->hw_write_wx(adapter,
163 NETXEN_NIU_GB_MAC_CONFIG_0(0),
171 * netxen_niu_gbe_phy_write - write a register to the GbE PHY via
172 * mii management interface.
174 * Note: The MII management interface goes through port 0.
175 * Individual phys are addressed as follows:
176 * @param phy [15:8] phy id
177 * @param reg [7:0] register number
179 * @returns 0 on success
183 int netxen_niu_gbe_phy_write(struct netxen_adapter *adapter, long reg,
189 long phy = adapter->physical_port;
196 * MII mgmt all goes through port 0 MAC interface, so it
200 if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(0),
203 if (netxen_gb_get_soft_reset(mac_cfg0)) {
206 netxen_gb_tx_reset_pb(temp);
207 netxen_gb_rx_reset_pb(temp);
208 netxen_gb_tx_reset_mac(temp);
209 netxen_gb_rx_reset_mac(temp);
211 if (adapter->hw_write_wx(adapter,
212 NETXEN_NIU_GB_MAC_CONFIG_0(0),
218 command = 0; /* turn off any prior activity */
219 if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
224 netxen_gb_mii_mgmt_reg_addr(address, reg);
225 netxen_gb_mii_mgmt_phy_addr(address, phy);
226 if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_ADDR(0),
230 if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_CTRL(0),
236 if (adapter->hw_read_wx(adapter,
237 NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
241 } while ((netxen_get_gb_mii_mgmt_busy(status))
242 && (timeout++ < NETXEN_NIU_PHY_WAITMAX));
244 if (timeout < NETXEN_NIU_PHY_WAITMAX)
249 /* restore the state of port 0 MAC in case we tampered with it */
251 if (adapter->hw_write_wx(adapter,
252 NETXEN_NIU_GB_MAC_CONFIG_0(0),
259 int netxen_niu_xgbe_enable_phy_interrupts(struct netxen_adapter *adapter)
261 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_INT_MASK, 0x3f);
265 int netxen_niu_gbe_enable_phy_interrupts(struct netxen_adapter *adapter)
269 netxen_set_phy_int_link_status_changed(enable);
270 netxen_set_phy_int_autoneg_completed(enable);
271 netxen_set_phy_int_speed_changed(enable);
274 netxen_niu_gbe_phy_write(adapter,
275 NETXEN_NIU_GB_MII_MGMT_ADDR_INT_ENABLE,
282 int netxen_niu_xgbe_disable_phy_interrupts(struct netxen_adapter *adapter)
284 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_INT_MASK, 0x7f);
288 int netxen_niu_gbe_disable_phy_interrupts(struct netxen_adapter *adapter)
292 netxen_niu_gbe_phy_write(adapter,
293 NETXEN_NIU_GB_MII_MGMT_ADDR_INT_ENABLE, 0))
299 static int netxen_niu_gbe_clear_phy_interrupts(struct netxen_adapter *adapter)
303 netxen_niu_gbe_phy_write(adapter,
304 NETXEN_NIU_GB_MII_MGMT_ADDR_INT_STATUS,
312 * netxen_niu_gbe_set_mii_mode- Set 10/100 Mbit Mode for GbE MAC
315 static void netxen_niu_gbe_set_mii_mode(struct netxen_adapter *adapter,
316 int port, long enable)
318 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_MODE, 0x2);
319 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
321 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
323 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_1(port),
325 netxen_crb_writelit_adapter(adapter,
326 NETXEN_NIU_GB0_GMII_MODE + (port << 3), 0);
327 netxen_crb_writelit_adapter(adapter,
328 NETXEN_NIU_GB0_MII_MODE + (port << 3), 1);
329 netxen_crb_writelit_adapter(adapter,
330 (NETXEN_NIU_GB0_HALF_DUPLEX + port * 4), 0);
331 netxen_crb_writelit_adapter(adapter,
332 NETXEN_NIU_GB_MII_MGMT_CONFIG(port), 0x7);
336 * Do NOT enable flow control until a suitable solution for
337 * shutting down pause frames is found.
339 netxen_crb_writelit_adapter(adapter,
340 NETXEN_NIU_GB_MAC_CONFIG_0(port),
344 if (netxen_niu_gbe_enable_phy_interrupts(adapter))
345 printk(KERN_ERR PFX "ERROR enabling PHY interrupts\n");
346 if (netxen_niu_gbe_clear_phy_interrupts(adapter))
347 printk(KERN_ERR PFX "ERROR clearing PHY interrupts\n");
351 * netxen_niu_gbe_set_gmii_mode- Set GbE Mode for GbE MAC
353 static void netxen_niu_gbe_set_gmii_mode(struct netxen_adapter *adapter,
354 int port, long enable)
356 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_MODE, 0x2);
357 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
359 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
361 netxen_crb_writelit_adapter(adapter, NETXEN_NIU_GB_MAC_CONFIG_1(port),
363 netxen_crb_writelit_adapter(adapter,
364 NETXEN_NIU_GB0_MII_MODE + (port << 3), 0);
365 netxen_crb_writelit_adapter(adapter,
366 NETXEN_NIU_GB0_GMII_MODE + (port << 3), 1);
367 netxen_crb_writelit_adapter(adapter,
368 (NETXEN_NIU_GB0_HALF_DUPLEX + port * 4), 0);
369 netxen_crb_writelit_adapter(adapter,
370 NETXEN_NIU_GB_MII_MGMT_CONFIG(port), 0x7);
374 * Do NOT enable flow control until a suitable solution for
375 * shutting down pause frames is found.
377 netxen_crb_writelit_adapter(adapter,
378 NETXEN_NIU_GB_MAC_CONFIG_0(port),
382 if (netxen_niu_gbe_enable_phy_interrupts(adapter))
383 printk(KERN_ERR PFX "ERROR enabling PHY interrupts\n");
384 if (netxen_niu_gbe_clear_phy_interrupts(adapter))
385 printk(KERN_ERR PFX "ERROR clearing PHY interrupts\n");
388 int netxen_niu_gbe_init_port(struct netxen_adapter *adapter, int port)
393 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
396 if (adapter->disable_phy_interrupts)
397 adapter->disable_phy_interrupts(adapter);
400 if (0 == netxen_niu_gbe_phy_read(adapter,
401 NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS, &status)) {
402 if (netxen_get_phy_link(status)) {
403 if (netxen_get_phy_speed(status) == 2) {
404 netxen_niu_gbe_set_gmii_mode(adapter, port, 1);
405 } else if ((netxen_get_phy_speed(status) == 1)
406 || (netxen_get_phy_speed(status) == 0)) {
407 netxen_niu_gbe_set_mii_mode(adapter, port, 1);
414 * We don't have link. Cable must be unconnected.
415 * Enable phy interrupts so we take action when
419 netxen_crb_writelit_adapter(adapter,
420 NETXEN_NIU_GB_MAC_CONFIG_0
422 NETXEN_GB_MAC_SOFT_RESET);
423 netxen_crb_writelit_adapter(adapter,
424 NETXEN_NIU_GB_MAC_CONFIG_0
426 NETXEN_GB_MAC_RESET_PROT_BLK
427 | NETXEN_GB_MAC_ENABLE_TX_RX
429 NETXEN_GB_MAC_PAUSED_FRMS);
430 if (netxen_niu_gbe_clear_phy_interrupts(adapter))
432 "ERROR clearing PHY interrupts\n");
433 if (netxen_niu_gbe_enable_phy_interrupts(adapter))
435 "ERROR enabling PHY interrupts\n");
436 if (netxen_niu_gbe_clear_phy_interrupts(adapter))
438 "ERROR clearing PHY interrupts\n");
447 int netxen_niu_xg_init_port(struct netxen_adapter *adapter, int port)
449 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
450 netxen_crb_writelit_adapter(adapter,
451 NETXEN_NIU_XGE_CONFIG_1+(0x10000*port), 0x1447);
452 netxen_crb_writelit_adapter(adapter,
453 NETXEN_NIU_XGE_CONFIG_0+(0x10000*port), 0x5);
460 * Return the current station MAC address.
461 * Note that the passed-in value must already be in network byte order.
463 static int netxen_niu_macaddr_get(struct netxen_adapter *adapter,
464 netxen_ethernet_macaddr_t * addr)
468 int phy = adapter->physical_port;
473 if ((phy < 0) || (phy > 3))
476 if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_STATION_ADDR_0(phy),
479 if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_STATION_ADDR_1(phy),
482 ((__le32 *)val)[1] = cpu_to_le32(stationhigh);
483 ((__le32 *)val)[0] = cpu_to_le32(stationlow);
485 memcpy(addr, val + 2, 6);
491 * Set the station MAC address.
492 * Note that the passed-in value must already be in network byte order.
494 int netxen_niu_macaddr_set(struct netxen_adapter *adapter,
495 netxen_ethernet_macaddr_t addr)
499 int phy = adapter->physical_port;
500 unsigned char mac_addr[6];
503 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
506 for (i = 0; i < 10; i++) {
507 temp[0] = temp[1] = 0;
508 memcpy(temp + 2, addr, 2);
509 val = le32_to_cpu(*(__le32 *)temp);
510 if (adapter->hw_write_wx(adapter,
511 NETXEN_NIU_GB_STATION_ADDR_1(phy), &val, 4))
514 memcpy(temp, ((u8 *) addr) + 2, sizeof(__le32));
515 val = le32_to_cpu(*(__le32 *)temp);
516 if (adapter->hw_write_wx(adapter,
517 NETXEN_NIU_GB_STATION_ADDR_0(phy), &val, 4))
520 netxen_niu_macaddr_get(adapter,
521 (netxen_ethernet_macaddr_t *) mac_addr);
522 if (memcmp(mac_addr, addr, 6) == 0)
527 printk(KERN_ERR "%s: cannot set Mac addr for %s\n",
528 netxen_nic_driver_name, adapter->netdev->name);
529 printk(KERN_ERR "MAC address set: %pM.\n", addr);
530 printk(KERN_ERR "MAC address get: %pM.\n", mac_addr);
535 /* Disable a GbE interface */
536 int netxen_niu_disable_gbe_port(struct netxen_adapter *adapter)
539 u32 port = adapter->physical_port;
541 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
544 if (port > NETXEN_NIU_MAX_GBE_PORTS)
547 netxen_gb_soft_reset(mac_cfg0);
548 if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
554 /* Disable an XG interface */
555 int netxen_niu_disable_xg_port(struct netxen_adapter *adapter)
558 u32 port = adapter->physical_port;
560 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
563 if (port > NETXEN_NIU_MAX_XG_PORTS)
567 if (adapter->hw_write_wx(adapter,
568 NETXEN_NIU_XGE_CONFIG_0 + (0x10000 * port), &mac_cfg, 4))
573 /* Set promiscuous mode for a GbE interface */
574 int netxen_niu_set_promiscuous_mode(struct netxen_adapter *adapter,
578 u32 port = adapter->physical_port;
580 if (port > NETXEN_NIU_MAX_GBE_PORTS)
583 /* save previous contents */
584 if (adapter->hw_read_wx(adapter, NETXEN_NIU_GB_DROP_WRONGADDR,
587 if (mode == NETXEN_NIU_PROMISC_MODE) {
590 netxen_clear_gb_drop_gb0(reg);
593 netxen_clear_gb_drop_gb1(reg);
596 netxen_clear_gb_drop_gb2(reg);
599 netxen_clear_gb_drop_gb3(reg);
607 netxen_set_gb_drop_gb0(reg);
610 netxen_set_gb_drop_gb1(reg);
613 netxen_set_gb_drop_gb2(reg);
616 netxen_set_gb_drop_gb3(reg);
622 if (adapter->hw_write_wx(adapter, NETXEN_NIU_GB_DROP_WRONGADDR,
629 * Set the MAC address for an XG port
630 * Note that the passed-in value must already be in network byte order.
632 int netxen_niu_xg_macaddr_set(struct netxen_adapter *adapter,
633 netxen_ethernet_macaddr_t addr)
635 int phy = adapter->physical_port;
639 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
642 if ((phy < 0) || (phy > NETXEN_NIU_MAX_XG_PORTS))
645 temp[0] = temp[1] = 0;
648 memcpy(temp + 2, addr, 2);
649 val = le32_to_cpu(*(__le32 *)temp);
650 if (adapter->hw_write_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_1,
654 memcpy(&temp, ((u8 *) addr) + 2, sizeof(__le32));
655 val = le32_to_cpu(*(__le32 *)temp);
656 if (adapter->hw_write_wx(adapter, NETXEN_NIU_XGE_STATION_ADDR_0_HI,
662 memcpy(temp + 2, addr, 2);
663 val = le32_to_cpu(*(__le32 *)temp);
664 if (adapter->hw_write_wx(adapter, NETXEN_NIU_XG1_STATION_ADDR_0_1,
668 memcpy(&temp, ((u8 *) addr) + 2, sizeof(__le32));
669 val = le32_to_cpu(*(__le32 *)temp);
670 if (adapter->hw_write_wx(adapter, NETXEN_NIU_XG1_STATION_ADDR_0_HI,
676 printk(KERN_ERR "Unknown port %d\n", phy);
683 int netxen_niu_xg_set_promiscuous_mode(struct netxen_adapter *adapter,
687 u32 port = adapter->physical_port;
689 if (port > NETXEN_NIU_MAX_XG_PORTS)
692 if (adapter->hw_read_wx(adapter,
693 NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), ®, 4))
695 if (mode == NETXEN_NIU_PROMISC_MODE)
696 reg = (reg | 0x2000UL);
698 reg = (reg & ~0x2000UL);
700 if (mode == NETXEN_NIU_ALLMULTI_MODE)
701 reg = (reg | 0x1000UL);
703 reg = (reg & ~0x1000UL);
705 netxen_crb_writelit_adapter(adapter,
706 NETXEN_NIU_XGE_CONFIG_1 + (0x10000 * port), reg);