blob: ed265a7a898faea70408ae635c92328ae54003a7 [file] [log] [blame]
Auke Kok9a799d72007-09-15 14:07:45 -07001/*******************************************************************************
2
3 Intel 10 Gigabit PCI Express Linux driver
Peter P Waskiewicz Jr3efac5a2009-02-01 01:19:20 -08004 Copyright(c) 1999 - 2009 Intel Corporation.
Auke Kok9a799d72007-09-15 14:07:45 -07005
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
21
22 Contact Information:
Auke Kok9a799d72007-09-15 14:07:45 -070023 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25
26*******************************************************************************/
27
28#include <linux/pci.h>
29#include <linux/delay.h>
30#include <linux/sched.h>
31
Stephen Hemminger9c8eb722007-10-29 10:46:24 -070032#include "ixgbe.h"
Auke Kok9a799d72007-09-15 14:07:45 -070033#include "ixgbe_phy.h"
34
35#define IXGBE_82598_MAX_TX_QUEUES 32
36#define IXGBE_82598_MAX_RX_QUEUES 64
37#define IXGBE_82598_RAR_ENTRIES 16
Christopher Leech2c5645c2008-08-26 04:27:02 -070038#define IXGBE_82598_MC_TBL_SIZE 128
39#define IXGBE_82598_VFT_TBL_SIZE 128
Auke Kok9a799d72007-09-15 14:07:45 -070040
Jesse Brandeburgc44ade92008-09-11 19:59:59 -070041static s32 ixgbe_get_copper_link_capabilities_82598(struct ixgbe_hw *hw,
42 ixgbe_link_speed *speed,
43 bool *autoneg);
Auke Kok9a799d72007-09-15 14:07:45 -070044static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw);
Jesse Brandeburgc44ade92008-09-11 19:59:59 -070045static s32 ixgbe_setup_copper_link_speed_82598(struct ixgbe_hw *hw,
46 ixgbe_link_speed speed,
47 bool autoneg,
48 bool autoneg_wait_to_complete);
Donald Skidmorec4900be2008-11-20 21:11:42 -080049static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
50 u8 *eeprom_data);
Auke Kok9a799d72007-09-15 14:07:45 -070051
Jesse Brandeburgc44ade92008-09-11 19:59:59 -070052/**
Peter P Waskiewicz Jreb7f1392009-02-01 01:18:58 -080053 * ixgbe_get_pcie_msix_count_82598 - Gets MSI-X vector count
54 * @hw: pointer to hardware structure
55 *
56 * Read PCIe configuration space, and get the MSI-X vector count from
57 * the capabilities table.
58 **/
Hannes Eder1aef47c2009-02-14 11:38:36 +000059static u16 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw)
Peter P Waskiewicz Jreb7f1392009-02-01 01:18:58 -080060{
61 struct ixgbe_adapter *adapter = hw->back;
62 u16 msix_count;
63 pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82598_CAPS,
64 &msix_count);
65 msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
66
67 /* MSI-X count is zero-based in HW, so increment to give proper value */
68 msix_count++;
69
70 return msix_count;
71}
72
73/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -070074 */
Auke Kok9a799d72007-09-15 14:07:45 -070075static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
76{
Jesse Brandeburgc44ade92008-09-11 19:59:59 -070077 struct ixgbe_mac_info *mac = &hw->mac;
78 struct ixgbe_phy_info *phy = &hw->phy;
Donald Skidmorec4900be2008-11-20 21:11:42 -080079 s32 ret_val = 0;
80 u16 list_offset, data_offset;
Auke Kok9a799d72007-09-15 14:07:45 -070081
PJ Waskiewicz03cfa202009-03-19 01:23:29 +000082 /* Set the bus information prior to PHY identification */
83 mac->ops.get_bus_info(hw);
84
Jesse Brandeburgc44ade92008-09-11 19:59:59 -070085 /* Call PHY identify routine to get the phy type */
86 ixgbe_identify_phy_generic(hw);
Auke Kok3957d632007-10-31 15:22:10 -070087
Jesse Brandeburgc44ade92008-09-11 19:59:59 -070088 /* PHY Init */
89 switch (phy->type) {
Jesse Brandeburg0befdb32008-10-31 00:46:40 -070090 case ixgbe_phy_tn:
91 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
92 phy->ops.get_firmware_version =
93 &ixgbe_get_phy_firmware_version_tnx;
94 break;
Donald Skidmorec4900be2008-11-20 21:11:42 -080095 case ixgbe_phy_nl:
96 phy->ops.reset = &ixgbe_reset_phy_nl;
97
98 /* Call SFP+ identify routine to get the SFP+ module type */
99 ret_val = phy->ops.identify_sfp(hw);
100 if (ret_val != 0)
101 goto out;
102 else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
103 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
104 goto out;
105 }
106
107 /* Check to see if SFP+ module is supported */
108 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
109 &list_offset,
110 &data_offset);
111 if (ret_val != 0) {
112 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
113 goto out;
114 }
115 break;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700116 default:
117 break;
Auke Kok3957d632007-10-31 15:22:10 -0700118 }
119
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700120 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
121 mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
122 mac->ops.setup_link_speed =
123 &ixgbe_setup_copper_link_speed_82598;
124 mac->ops.get_link_capabilities =
125 &ixgbe_get_copper_link_capabilities_82598;
126 }
127
128 mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
129 mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
130 mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
131 mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
132 mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
Peter P Waskiewicz Jreb7f1392009-02-01 01:18:58 -0800133 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700134
Donald Skidmorec4900be2008-11-20 21:11:42 -0800135out:
136 return ret_val;
Auke Kok9a799d72007-09-15 14:07:45 -0700137}
138
139/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700140 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
Auke Kok9a799d72007-09-15 14:07:45 -0700141 * @hw: pointer to hardware structure
142 * @speed: pointer to link speed
143 * @autoneg: boolean auto-negotiation value
144 *
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700145 * Determines the link capabilities by reading the AUTOC register.
Auke Kok9a799d72007-09-15 14:07:45 -0700146 **/
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700147static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700148 ixgbe_link_speed *speed,
149 bool *autoneg)
Auke Kok9a799d72007-09-15 14:07:45 -0700150{
151 s32 status = 0;
Auke Kok9a799d72007-09-15 14:07:45 -0700152
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800153 /*
154 * Determine link capabilities based on the stored value of AUTOC,
155 * which represents EEPROM defaults.
156 */
157 switch (hw->mac.orig_autoc & IXGBE_AUTOC_LMS_MASK) {
Auke Kok9a799d72007-09-15 14:07:45 -0700158 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
159 *speed = IXGBE_LINK_SPEED_1GB_FULL;
160 *autoneg = false;
161 break;
162
163 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
164 *speed = IXGBE_LINK_SPEED_10GB_FULL;
165 *autoneg = false;
166 break;
167
168 case IXGBE_AUTOC_LMS_1G_AN:
169 *speed = IXGBE_LINK_SPEED_1GB_FULL;
170 *autoneg = true;
171 break;
172
173 case IXGBE_AUTOC_LMS_KX4_AN:
174 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
175 *speed = IXGBE_LINK_SPEED_UNKNOWN;
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800176 if (hw->mac.orig_autoc & IXGBE_AUTOC_KX4_SUPP)
Auke Kok9a799d72007-09-15 14:07:45 -0700177 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800178 if (hw->mac.orig_autoc & IXGBE_AUTOC_KX_SUPP)
Auke Kok9a799d72007-09-15 14:07:45 -0700179 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
180 *autoneg = true;
181 break;
182
183 default:
184 status = IXGBE_ERR_LINK_SETUP;
185 break;
186 }
187
188 return status;
189}
190
191/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700192 * ixgbe_get_copper_link_capabilities_82598 - Determines link capabilities
Auke Kok9a799d72007-09-15 14:07:45 -0700193 * @hw: pointer to hardware structure
194 * @speed: pointer to link speed
195 * @autoneg: boolean auto-negotiation value
196 *
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700197 * Determines the link capabilities by reading the AUTOC register.
Auke Kok9a799d72007-09-15 14:07:45 -0700198 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800199static s32 ixgbe_get_copper_link_capabilities_82598(struct ixgbe_hw *hw,
200 ixgbe_link_speed *speed,
201 bool *autoneg)
Auke Kok9a799d72007-09-15 14:07:45 -0700202{
203 s32 status = IXGBE_ERR_LINK_SETUP;
204 u16 speed_ability;
205
206 *speed = 0;
207 *autoneg = true;
208
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700209 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_SPEED_ABILITY,
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700210 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
211 &speed_ability);
Auke Kok9a799d72007-09-15 14:07:45 -0700212
213 if (status == 0) {
214 if (speed_ability & IXGBE_MDIO_PHY_SPEED_10G)
215 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
216 if (speed_ability & IXGBE_MDIO_PHY_SPEED_1G)
217 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
218 }
219
220 return status;
221}
222
223/**
224 * ixgbe_get_media_type_82598 - Determines media type
225 * @hw: pointer to hardware structure
226 *
227 * Returns the media type (fiber, copper, backplane)
228 **/
229static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
230{
231 enum ixgbe_media_type media_type;
232
233 /* Media type for I82598 is based on device ID */
234 switch (hw->device_id) {
Don Skidmore1e336d02009-01-26 20:57:51 -0800235 case IXGBE_DEV_ID_82598:
Don Skidmore2f21bdd2009-02-01 01:18:23 -0800236 case IXGBE_DEV_ID_82598_BX:
Don Skidmore1e336d02009-01-26 20:57:51 -0800237 media_type = ixgbe_media_type_backplane;
238 break;
Auke Kok9a799d72007-09-15 14:07:45 -0700239 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
240 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
241 case IXGBE_DEV_ID_82598EB_CX4:
Jesse Brandeburg8d792cd2008-08-08 16:24:19 -0700242 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
Donald Skidmorec4900be2008-11-20 21:11:42 -0800243 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
244 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
Jesse Brandeburgb95f5fc2008-09-11 19:58:59 -0700245 case IXGBE_DEV_ID_82598EB_XF_LR:
Donald Skidmorec4900be2008-11-20 21:11:42 -0800246 case IXGBE_DEV_ID_82598EB_SFP_LOM:
Auke Kok9a799d72007-09-15 14:07:45 -0700247 media_type = ixgbe_media_type_fiber;
248 break;
Jesse Brandeburg0befdb32008-10-31 00:46:40 -0700249 case IXGBE_DEV_ID_82598AT:
250 media_type = ixgbe_media_type_copper;
251 break;
Auke Kok9a799d72007-09-15 14:07:45 -0700252 default:
253 media_type = ixgbe_media_type_unknown;
254 break;
255 }
256
257 return media_type;
258}
259
260/**
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800261 * ixgbe_fc_enable_82598 - Enable flow control
262 * @hw: pointer to hardware structure
263 * @packetbuf_num: packet buffer number (0-7)
264 *
265 * Enable flow control according to the current settings.
266 **/
267static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
268{
269 s32 ret_val = 0;
270 u32 fctrl_reg;
271 u32 rmcs_reg;
272 u32 reg;
273
274 fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
275 fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
276
277 rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
278 rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
279
280 /*
281 * The possible values of fc.current_mode are:
282 * 0: Flow control is completely disabled
283 * 1: Rx flow control is enabled (we can receive pause frames,
284 * but not send pause frames).
285 * 2: Tx flow control is enabled (we can send pause frames but
286 * we do not support receiving pause frames).
287 * 3: Both Rx and Tx flow control (symmetric) are enabled.
288 * other: Invalid.
289 */
290 switch (hw->fc.current_mode) {
291 case ixgbe_fc_none:
292 /* Flow control completely disabled by software override. */
293 break;
294 case ixgbe_fc_rx_pause:
295 /*
296 * Rx Flow control is enabled and Tx Flow control is
297 * disabled by software override. Since there really
298 * isn't a way to advertise that we are capable of RX
299 * Pause ONLY, we will advertise that we support both
300 * symmetric and asymmetric Rx PAUSE. Later, we will
301 * disable the adapter's ability to send PAUSE frames.
302 */
303 fctrl_reg |= IXGBE_FCTRL_RFCE;
304 break;
305 case ixgbe_fc_tx_pause:
306 /*
307 * Tx Flow control is enabled, and Rx Flow control is
308 * disabled by software override.
309 */
310 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
311 break;
312 case ixgbe_fc_full:
313 /* Flow control (both Rx and Tx) is enabled by SW override. */
314 fctrl_reg |= IXGBE_FCTRL_RFCE;
315 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
316 break;
317 default:
318 hw_dbg(hw, "Flow control param set incorrectly\n");
319 ret_val = -IXGBE_ERR_CONFIG;
320 goto out;
321 break;
322 }
323
324 /* Enable 802.3x based flow control settings. */
325 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
326 IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
327
328 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
329 if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
330 if (hw->fc.send_xon) {
331 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
332 (hw->fc.low_water | IXGBE_FCRTL_XONE));
333 } else {
334 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
335 hw->fc.low_water);
336 }
337
338 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num),
339 (hw->fc.high_water | IXGBE_FCRTH_FCEN));
340 }
341
342 /* Configure pause time (2 TCs per register) */
343 reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num));
344 if ((packetbuf_num & 1) == 0)
345 reg = (reg & 0xFFFF0000) | hw->fc.pause_time;
346 else
347 reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16);
348 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg);
349
350 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));
351
352out:
353 return ret_val;
354}
355
356/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700357 * ixgbe_setup_fc_82598 - Configure flow control settings
358 * @hw: pointer to hardware structure
359 * @packetbuf_num: packet buffer number (0-7)
360 *
361 * Configures the flow control settings based on SW configuration. This
362 * function is used for 802.3x flow control configuration only.
363 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800364static s32 ixgbe_setup_fc_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700365{
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800366 s32 ret_val = 0;
367 ixgbe_link_speed speed;
368 bool link_up;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700369
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800370 /* Validate the packetbuf configuration */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700371 if (packetbuf_num < 0 || packetbuf_num > 7) {
372 hw_dbg(hw, "Invalid packet buffer number [%d], expected range is"
373 " 0-7\n", packetbuf_num);
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800374 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
375 goto out;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700376 }
377
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700378 /*
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800379 * Validate the water mark configuration. Zero water marks are invalid
380 * because it causes the controller to just blast out fc packets.
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700381 */
382 if (!hw->fc.low_water || !hw->fc.high_water || !hw->fc.pause_time) {
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800383 hw_dbg(hw, "Invalid water mark configuration\n");
384 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
385 goto out;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700386 }
387
388 /*
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800389 * Validate the requested mode. Strict IEEE mode does not allow
390 * ixgbe_fc_rx_pause because it will cause testing anomalies.
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700391 */
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800392 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
393 hw_dbg(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
394 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
395 goto out;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700396 }
397
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800398 /*
399 * 10gig parts do not have a word in the EEPROM to determine the
400 * default flow control setting, so we explicitly set it to full.
401 */
402 if (hw->fc.requested_mode == ixgbe_fc_default)
403 hw->fc.requested_mode = ixgbe_fc_full;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700404
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800405 /*
406 * Save off the requested flow control mode for use later. Depending
407 * on the link partner's capabilities, we may or may not use this mode.
408 */
409
410 hw->fc.current_mode = hw->fc.requested_mode;
411
412 /* Decide whether to use autoneg or not. */
413 hw->mac.ops.check_link(hw, &speed, &link_up, false);
414 if (hw->phy.multispeed_fiber && (speed == IXGBE_LINK_SPEED_1GB_FULL))
415 ret_val = ixgbe_fc_autoneg(hw);
416
417 if (ret_val)
418 goto out;
419
420 ret_val = ixgbe_fc_enable_82598(hw, packetbuf_num);
421
422out:
423 return ret_val;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700424}
425
426/**
Auke Kok9a799d72007-09-15 14:07:45 -0700427 * ixgbe_setup_mac_link_82598 - Configures MAC link settings
428 * @hw: pointer to hardware structure
429 *
430 * Configures link settings based on values in the ixgbe_hw struct.
431 * Restarts the link. Performs autonegotiation if needed.
432 **/
433static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw)
434{
435 u32 autoc_reg;
436 u32 links_reg;
437 u32 i;
438 s32 status = 0;
439
Auke Kok9a799d72007-09-15 14:07:45 -0700440 /* Restart link */
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800441 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
Auke Kok9a799d72007-09-15 14:07:45 -0700442 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
443 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
444
445 /* Only poll for autoneg to complete if specified to do so */
446 if (hw->phy.autoneg_wait_to_complete) {
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800447 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
448 IXGBE_AUTOC_LMS_KX4_AN ||
449 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
450 IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
Auke Kok9a799d72007-09-15 14:07:45 -0700451 links_reg = 0; /* Just in case Autoneg time = 0 */
452 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
453 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
454 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
455 break;
456 msleep(100);
457 }
458 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
459 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700460 hw_dbg(hw, "Autonegotiation did not complete.\n");
Auke Kok9a799d72007-09-15 14:07:45 -0700461 }
462 }
463 }
464
465 /*
466 * We want to save off the original Flow Control configuration just in
467 * case we get disconnected and then reconnected into a different hub
468 * or switch with different Flow Control capabilities.
469 */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700470 ixgbe_setup_fc_82598(hw, 0);
Auke Kok9a799d72007-09-15 14:07:45 -0700471
472 /* Add delay to filter out noises during initial link setup */
473 msleep(50);
474
475 return status;
476}
477
478/**
479 * ixgbe_check_mac_link_82598 - Get link/speed status
480 * @hw: pointer to hardware structure
481 * @speed: pointer to link speed
482 * @link_up: true is link is up, false otherwise
Jesse Brandeburgcf8280e2008-09-11 19:55:32 -0700483 * @link_up_wait_to_complete: bool used to wait for link up or not
Auke Kok9a799d72007-09-15 14:07:45 -0700484 *
485 * Reads the links register to determine if link is up and the current speed
486 **/
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700487static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
488 ixgbe_link_speed *speed, bool *link_up,
489 bool link_up_wait_to_complete)
Auke Kok9a799d72007-09-15 14:07:45 -0700490{
491 u32 links_reg;
Jesse Brandeburgcf8280e2008-09-11 19:55:32 -0700492 u32 i;
Donald Skidmorec4900be2008-11-20 21:11:42 -0800493 u16 link_reg, adapt_comp_reg;
494
495 /*
496 * SERDES PHY requires us to read link status from register 0xC79F.
497 * Bit 0 set indicates link is up/ready; clear indicates link down.
498 * 0xC00C is read to check that the XAUI lanes are active. Bit 0
499 * clear indicates active; set indicates inactive.
500 */
501 if (hw->phy.type == ixgbe_phy_nl) {
502 hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
503 hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
504 hw->phy.ops.read_reg(hw, 0xC00C, IXGBE_TWINAX_DEV,
505 &adapt_comp_reg);
506 if (link_up_wait_to_complete) {
507 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
508 if ((link_reg & 1) &&
509 ((adapt_comp_reg & 1) == 0)) {
510 *link_up = true;
511 break;
512 } else {
513 *link_up = false;
514 }
515 msleep(100);
516 hw->phy.ops.read_reg(hw, 0xC79F,
517 IXGBE_TWINAX_DEV,
518 &link_reg);
519 hw->phy.ops.read_reg(hw, 0xC00C,
520 IXGBE_TWINAX_DEV,
521 &adapt_comp_reg);
522 }
523 } else {
524 if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
525 *link_up = true;
526 else
527 *link_up = false;
528 }
529
530 if (*link_up == false)
531 goto out;
532 }
Auke Kok9a799d72007-09-15 14:07:45 -0700533
534 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
Jesse Brandeburgcf8280e2008-09-11 19:55:32 -0700535 if (link_up_wait_to_complete) {
536 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
537 if (links_reg & IXGBE_LINKS_UP) {
538 *link_up = true;
539 break;
540 } else {
541 *link_up = false;
542 }
543 msleep(100);
544 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
545 }
546 } else {
547 if (links_reg & IXGBE_LINKS_UP)
548 *link_up = true;
549 else
550 *link_up = false;
551 }
Auke Kok9a799d72007-09-15 14:07:45 -0700552
553 if (links_reg & IXGBE_LINKS_SPEED)
554 *speed = IXGBE_LINK_SPEED_10GB_FULL;
555 else
556 *speed = IXGBE_LINK_SPEED_1GB_FULL;
557
Donald Skidmorec4900be2008-11-20 21:11:42 -0800558out:
Auke Kok9a799d72007-09-15 14:07:45 -0700559 return 0;
560}
561
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700562
Auke Kok9a799d72007-09-15 14:07:45 -0700563/**
564 * ixgbe_setup_mac_link_speed_82598 - Set MAC link speed
565 * @hw: pointer to hardware structure
566 * @speed: new link speed
567 * @autoneg: true if auto-negotiation enabled
568 * @autoneg_wait_to_complete: true if waiting is needed to complete
569 *
570 * Set the link speed in the AUTOC register and restarts link.
571 **/
572static s32 ixgbe_setup_mac_link_speed_82598(struct ixgbe_hw *hw,
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800573 ixgbe_link_speed speed, bool autoneg,
574 bool autoneg_wait_to_complete)
Auke Kok9a799d72007-09-15 14:07:45 -0700575{
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800576 s32 status = 0;
577 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
578 u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
579 u32 autoc = curr_autoc;
580 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
Auke Kok9a799d72007-09-15 14:07:45 -0700581
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800582 /* Check to see if speed passed in is supported. */
583 ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
584 speed &= link_capabilities;
585
586 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
Auke Kok9a799d72007-09-15 14:07:45 -0700587 status = IXGBE_ERR_LINK_SETUP;
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800588
589 /* Set KX4/KX support according to speed requested */
590 else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
591 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
592 autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
593 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
594 autoc |= IXGBE_AUTOC_KX4_SUPP;
595 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
596 autoc |= IXGBE_AUTOC_KX_SUPP;
597 if (autoc != curr_autoc)
598 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
Auke Kok9a799d72007-09-15 14:07:45 -0700599 }
600
601 if (status == 0) {
602 hw->phy.autoneg_wait_to_complete = autoneg_wait_to_complete;
603
Auke Kok9a799d72007-09-15 14:07:45 -0700604 /*
605 * Setup and restart the link based on the new values in
606 * ixgbe_hw This will write the AUTOC register based on the new
607 * stored values
608 */
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800609 status = ixgbe_setup_mac_link_82598(hw);
Auke Kok9a799d72007-09-15 14:07:45 -0700610 }
611
612 return status;
613}
614
615
616/**
617 * ixgbe_setup_copper_link_82598 - Setup copper link settings
618 * @hw: pointer to hardware structure
619 *
620 * Configures link settings based on values in the ixgbe_hw struct.
621 * Restarts the link. Performs autonegotiation if needed. Restart
622 * phy and wait for autonegotiate to finish. Then synchronize the
623 * MAC and PHY.
624 **/
625static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw)
626{
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700627 s32 status;
Auke Kok9a799d72007-09-15 14:07:45 -0700628
629 /* Restart autonegotiation on PHY */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700630 status = hw->phy.ops.setup_link(hw);
Auke Kok9a799d72007-09-15 14:07:45 -0700631
Auke Kok3957d632007-10-31 15:22:10 -0700632 /* Set up MAC */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700633 ixgbe_setup_mac_link_82598(hw);
Auke Kok9a799d72007-09-15 14:07:45 -0700634
635 return status;
636}
637
638/**
639 * ixgbe_setup_copper_link_speed_82598 - Set the PHY autoneg advertised field
640 * @hw: pointer to hardware structure
641 * @speed: new link speed
642 * @autoneg: true if autonegotiation enabled
643 * @autoneg_wait_to_complete: true if waiting is needed to complete
644 *
645 * Sets the link speed in the AUTOC register in the MAC and restarts link.
646 **/
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700647static s32 ixgbe_setup_copper_link_speed_82598(struct ixgbe_hw *hw,
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700648 ixgbe_link_speed speed,
649 bool autoneg,
650 bool autoneg_wait_to_complete)
Auke Kok9a799d72007-09-15 14:07:45 -0700651{
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700652 s32 status;
Auke Kok9a799d72007-09-15 14:07:45 -0700653
654 /* Setup the PHY according to input speed */
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700655 status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
656 autoneg_wait_to_complete);
Auke Kok9a799d72007-09-15 14:07:45 -0700657
Auke Kok3957d632007-10-31 15:22:10 -0700658 /* Set up MAC */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700659 ixgbe_setup_mac_link_82598(hw);
Auke Kok9a799d72007-09-15 14:07:45 -0700660
661 return status;
662}
663
664/**
665 * ixgbe_reset_hw_82598 - Performs hardware reset
666 * @hw: pointer to hardware structure
667 *
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700668 * Resets the hardware by resetting the transmit and receive units, masks and
Auke Kok9a799d72007-09-15 14:07:45 -0700669 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
670 * reset.
671 **/
672static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
673{
674 s32 status = 0;
675 u32 ctrl;
676 u32 gheccr;
677 u32 i;
678 u32 autoc;
679 u8 analog_val;
680
681 /* Call adapter stop to disable tx/rx and clear interrupts */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700682 hw->mac.ops.stop_adapter(hw);
Auke Kok9a799d72007-09-15 14:07:45 -0700683
684 /*
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700685 * Power up the Atlas Tx lanes if they are currently powered down.
686 * Atlas Tx lanes are powered down for MAC loopback tests, but
Auke Kok9a799d72007-09-15 14:07:45 -0700687 * they are not automatically restored on reset.
688 */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700689 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700690 if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700691 /* Enable Tx Atlas so packets can be transmitted again */
692 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
693 &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700694 analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700695 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
696 analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700697
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700698 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
699 &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700700 analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700701 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
702 analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700703
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700704 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
705 &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700706 analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700707 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
708 analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700709
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700710 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
711 &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700712 analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700713 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
714 analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700715 }
716
717 /* Reset PHY */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700718 if (hw->phy.reset_disable == false)
719 hw->phy.ops.reset(hw);
Auke Kok9a799d72007-09-15 14:07:45 -0700720
721 /*
722 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
723 * access and verify no pending requests before reset
724 */
725 if (ixgbe_disable_pcie_master(hw) != 0) {
726 status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
727 hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
728 }
729
730 /*
731 * Issue global reset to the MAC. This needs to be a SW reset.
732 * If link reset is used, it might reset the MAC when mng is using it
733 */
734 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
735 IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
736 IXGBE_WRITE_FLUSH(hw);
737
738 /* Poll for reset bit to self-clear indicating reset is complete */
739 for (i = 0; i < 10; i++) {
740 udelay(1);
741 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
742 if (!(ctrl & IXGBE_CTRL_RST))
743 break;
744 }
745 if (ctrl & IXGBE_CTRL_RST) {
746 status = IXGBE_ERR_RESET_FAILED;
747 hw_dbg(hw, "Reset polling failed to complete.\n");
748 }
749
750 msleep(50);
751
752 gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
753 gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
754 IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
755
756 /*
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800757 * Store the original AUTOC value if it has not been
758 * stored off yet. Otherwise restore the stored original
759 * AUTOC value since the reset operation sets back to deaults.
Auke Kok9a799d72007-09-15 14:07:45 -0700760 */
761 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800762 if (hw->mac.orig_link_settings_stored == false) {
763 hw->mac.orig_autoc = autoc;
764 hw->mac.orig_link_settings_stored = true;
765 } else if (autoc != hw->mac.orig_autoc) {
766 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
Auke Kok9a799d72007-09-15 14:07:45 -0700767 }
768
769 /* Store the permanent mac address */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700770 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
Auke Kok9a799d72007-09-15 14:07:45 -0700771
772 return status;
773}
774
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700775/**
776 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
777 * @hw: pointer to hardware struct
778 * @rar: receive address register index to associate with a VMDq index
779 * @vmdq: VMDq set index
780 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800781static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700782{
783 u32 rar_high;
784
785 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
786 rar_high &= ~IXGBE_RAH_VIND_MASK;
787 rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
788 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
789 return 0;
790}
791
792/**
793 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
794 * @hw: pointer to hardware struct
795 * @rar: receive address register index to associate with a VMDq index
796 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
797 **/
798static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
799{
800 u32 rar_high;
801 u32 rar_entries = hw->mac.num_rar_entries;
802
803 if (rar < rar_entries) {
804 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
805 if (rar_high & IXGBE_RAH_VIND_MASK) {
806 rar_high &= ~IXGBE_RAH_VIND_MASK;
807 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
808 }
809 } else {
810 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
811 }
812
813 return 0;
814}
815
816/**
817 * ixgbe_set_vfta_82598 - Set VLAN filter table
818 * @hw: pointer to hardware structure
819 * @vlan: VLAN id to write to VLAN filter
820 * @vind: VMDq output index that maps queue to VLAN id in VFTA
821 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
822 *
823 * Turn on/off specified VLAN in the VLAN filter table.
824 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800825static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
826 bool vlan_on)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700827{
828 u32 regindex;
829 u32 bitindex;
830 u32 bits;
831 u32 vftabyte;
832
833 if (vlan > 4095)
834 return IXGBE_ERR_PARAM;
835
836 /* Determine 32-bit word position in array */
837 regindex = (vlan >> 5) & 0x7F; /* upper seven bits */
838
839 /* Determine the location of the (VMD) queue index */
840 vftabyte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
841 bitindex = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
842
843 /* Set the nibble for VMD queue index */
844 bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
845 bits &= (~(0x0F << bitindex));
846 bits |= (vind << bitindex);
847 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
848
849 /* Determine the location of the bit for this VLAN id */
850 bitindex = vlan & 0x1F; /* lower five bits */
851
852 bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
853 if (vlan_on)
854 /* Turn on this VLAN id */
855 bits |= (1 << bitindex);
856 else
857 /* Turn off this VLAN id */
858 bits &= ~(1 << bitindex);
859 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
860
861 return 0;
862}
863
864/**
865 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
866 * @hw: pointer to hardware structure
867 *
868 * Clears the VLAN filer table, and the VMDq index associated with the filter
869 **/
870static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
871{
872 u32 offset;
873 u32 vlanbyte;
874
875 for (offset = 0; offset < hw->mac.vft_size; offset++)
876 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
877
878 for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
879 for (offset = 0; offset < hw->mac.vft_size; offset++)
880 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700881 0);
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700882
883 return 0;
884}
885
886/**
887 * ixgbe_blink_led_start_82598 - Blink LED based on index.
888 * @hw: pointer to hardware structure
889 * @index: led number to blink
890 **/
891static s32 ixgbe_blink_led_start_82598(struct ixgbe_hw *hw, u32 index)
892{
893 ixgbe_link_speed speed = 0;
894 bool link_up = 0;
895 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
896 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
897
898 /*
899 * Link must be up to auto-blink the LEDs on the 82598EB MAC;
900 * force it if link is down.
901 */
902 hw->mac.ops.check_link(hw, &speed, &link_up, false);
903
904 if (!link_up) {
905 autoc_reg |= IXGBE_AUTOC_FLU;
906 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
907 msleep(10);
908 }
909
910 led_reg &= ~IXGBE_LED_MODE_MASK(index);
911 led_reg |= IXGBE_LED_BLINK(index);
912 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
913 IXGBE_WRITE_FLUSH(hw);
914
915 return 0;
916}
917
918/**
919 * ixgbe_blink_led_stop_82598 - Stop blinking LED based on index.
920 * @hw: pointer to hardware structure
921 * @index: led number to stop blinking
922 **/
923static s32 ixgbe_blink_led_stop_82598(struct ixgbe_hw *hw, u32 index)
924{
925 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
926 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
927
928 autoc_reg &= ~IXGBE_AUTOC_FLU;
929 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
930 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
931
932 led_reg &= ~IXGBE_LED_MODE_MASK(index);
933 led_reg &= ~IXGBE_LED_BLINK(index);
934 led_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index);
935 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
936 IXGBE_WRITE_FLUSH(hw);
937
938 return 0;
939}
940
941/**
942 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
943 * @hw: pointer to hardware structure
944 * @reg: analog register to read
945 * @val: read value
946 *
947 * Performs read operation to Atlas analog register specified.
948 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800949static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700950{
951 u32 atlas_ctl;
952
953 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
954 IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
955 IXGBE_WRITE_FLUSH(hw);
956 udelay(10);
957 atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
958 *val = (u8)atlas_ctl;
959
960 return 0;
961}
962
963/**
964 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
965 * @hw: pointer to hardware structure
966 * @reg: atlas register to write
967 * @val: value to write
968 *
969 * Performs write operation to Atlas analog register specified.
970 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800971static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700972{
973 u32 atlas_ctl;
974
975 atlas_ctl = (reg << 8) | val;
976 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
977 IXGBE_WRITE_FLUSH(hw);
978 udelay(10);
979
980 return 0;
981}
982
983/**
Donald Skidmorec4900be2008-11-20 21:11:42 -0800984 * ixgbe_read_i2c_eeprom_82598 - Read 8 bit EEPROM word of an SFP+ module
985 * over I2C interface through an intermediate phy.
986 * @hw: pointer to hardware structure
987 * @byte_offset: EEPROM byte offset to read
988 * @eeprom_data: value read
989 *
990 * Performs byte read operation to SFP module's EEPROM over I2C interface.
991 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800992static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
993 u8 *eeprom_data)
Donald Skidmorec4900be2008-11-20 21:11:42 -0800994{
995 s32 status = 0;
996 u16 sfp_addr = 0;
997 u16 sfp_data = 0;
998 u16 sfp_stat = 0;
999 u32 i;
1000
1001 if (hw->phy.type == ixgbe_phy_nl) {
1002 /*
1003 * phy SDA/SCL registers are at addresses 0xC30A to
1004 * 0xC30D. These registers are used to talk to the SFP+
1005 * module's EEPROM through the SDA/SCL (I2C) interface.
1006 */
1007 sfp_addr = (IXGBE_I2C_EEPROM_DEV_ADDR << 8) + byte_offset;
1008 sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1009 hw->phy.ops.write_reg(hw,
1010 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1011 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
1012 sfp_addr);
1013
1014 /* Poll status */
1015 for (i = 0; i < 100; i++) {
1016 hw->phy.ops.read_reg(hw,
1017 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1018 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
1019 &sfp_stat);
1020 sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1021 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1022 break;
1023 msleep(10);
1024 }
1025
1026 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1027 hw_dbg(hw, "EEPROM read did not pass.\n");
1028 status = IXGBE_ERR_SFP_NOT_PRESENT;
1029 goto out;
1030 }
1031
1032 /* Read data */
1033 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1034 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &sfp_data);
1035
1036 *eeprom_data = (u8)(sfp_data >> 8);
1037 } else {
1038 status = IXGBE_ERR_PHY;
1039 goto out;
1040 }
1041
1042out:
1043 return status;
1044}
1045
1046/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001047 * ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
1048 * @hw: pointer to hardware structure
1049 *
1050 * Determines physical layer capabilities of the current configuration.
1051 **/
PJ Waskiewicz11afc1b2009-02-27 15:44:30 +00001052static u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001053{
PJ Waskiewicz11afc1b2009-02-27 15:44:30 +00001054 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001055
1056 switch (hw->device_id) {
Don Skidmore1e336d02009-01-26 20:57:51 -08001057 case IXGBE_DEV_ID_82598:
1058 /* Default device ID is mezzanine card KX/KX4 */
1059 physical_layer = (IXGBE_PHYSICAL_LAYER_10GBASE_KX4 |
1060 IXGBE_PHYSICAL_LAYER_1000BASE_KX);
1061 break;
Don Skidmore2f21bdd2009-02-01 01:18:23 -08001062 case IXGBE_DEV_ID_82598_BX:
1063 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001064 case IXGBE_DEV_ID_82598EB_CX4:
1065 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
1066 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
1067 break;
Donald Skidmorec4900be2008-11-20 21:11:42 -08001068 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
1069 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1070 break;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001071 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
1072 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
Donald Skidmorec4900be2008-11-20 21:11:42 -08001073 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001074 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1075 break;
1076 case IXGBE_DEV_ID_82598EB_XF_LR:
1077 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1078 break;
Jesse Brandeburg0befdb32008-10-31 00:46:40 -07001079 case IXGBE_DEV_ID_82598AT:
1080 physical_layer = (IXGBE_PHYSICAL_LAYER_10GBASE_T |
1081 IXGBE_PHYSICAL_LAYER_1000BASE_T);
1082 break;
Donald Skidmorec4900be2008-11-20 21:11:42 -08001083 case IXGBE_DEV_ID_82598EB_SFP_LOM:
1084 hw->phy.ops.identify_sfp(hw);
1085
1086 switch (hw->phy.sfp_type) {
1087 case ixgbe_sfp_type_da_cu:
1088 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1089 break;
1090 case ixgbe_sfp_type_sr:
1091 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1092 break;
1093 case ixgbe_sfp_type_lr:
1094 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1095 break;
1096 default:
1097 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1098 break;
1099 }
1100 break;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001101
1102 default:
1103 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1104 break;
1105 }
1106
1107 return physical_layer;
1108}
1109
Auke Kok9a799d72007-09-15 14:07:45 -07001110static struct ixgbe_mac_operations mac_ops_82598 = {
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001111 .init_hw = &ixgbe_init_hw_generic,
1112 .reset_hw = &ixgbe_reset_hw_82598,
1113 .start_hw = &ixgbe_start_hw_generic,
1114 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
Auke Kok9a799d72007-09-15 14:07:45 -07001115 .get_media_type = &ixgbe_get_media_type_82598,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001116 .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82598,
PJ Waskiewicz11afc1b2009-02-27 15:44:30 +00001117 .enable_rx_dma = &ixgbe_enable_rx_dma_generic,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001118 .get_mac_addr = &ixgbe_get_mac_addr_generic,
1119 .stop_adapter = &ixgbe_stop_adapter_generic,
PJ Waskiewicz11afc1b2009-02-27 15:44:30 +00001120 .get_bus_info = &ixgbe_get_bus_info_generic,
1121 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001122 .read_analog_reg8 = &ixgbe_read_analog_reg8_82598,
1123 .write_analog_reg8 = &ixgbe_write_analog_reg8_82598,
Auke Kok3957d632007-10-31 15:22:10 -07001124 .setup_link = &ixgbe_setup_mac_link_82598,
Auke Kok3957d632007-10-31 15:22:10 -07001125 .setup_link_speed = &ixgbe_setup_mac_link_speed_82598,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001126 .check_link = &ixgbe_check_mac_link_82598,
1127 .get_link_capabilities = &ixgbe_get_link_capabilities_82598,
1128 .led_on = &ixgbe_led_on_generic,
1129 .led_off = &ixgbe_led_off_generic,
1130 .blink_led_start = &ixgbe_blink_led_start_82598,
1131 .blink_led_stop = &ixgbe_blink_led_stop_82598,
1132 .set_rar = &ixgbe_set_rar_generic,
1133 .clear_rar = &ixgbe_clear_rar_generic,
1134 .set_vmdq = &ixgbe_set_vmdq_82598,
1135 .clear_vmdq = &ixgbe_clear_vmdq_82598,
1136 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
1137 .update_uc_addr_list = &ixgbe_update_uc_addr_list_generic,
1138 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
1139 .enable_mc = &ixgbe_enable_mc_generic,
1140 .disable_mc = &ixgbe_disable_mc_generic,
1141 .clear_vfta = &ixgbe_clear_vfta_82598,
1142 .set_vfta = &ixgbe_set_vfta_82598,
1143 .setup_fc = &ixgbe_setup_fc_82598,
1144};
1145
1146static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1147 .init_params = &ixgbe_init_eeprom_params_generic,
1148 .read = &ixgbe_read_eeprom_generic,
1149 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
1150 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
1151};
1152
1153static struct ixgbe_phy_operations phy_ops_82598 = {
1154 .identify = &ixgbe_identify_phy_generic,
Donald Skidmorec4900be2008-11-20 21:11:42 -08001155 .identify_sfp = &ixgbe_identify_sfp_module_generic,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001156 .reset = &ixgbe_reset_phy_generic,
1157 .read_reg = &ixgbe_read_phy_reg_generic,
1158 .write_reg = &ixgbe_write_phy_reg_generic,
1159 .setup_link = &ixgbe_setup_phy_link_generic,
1160 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
Donald Skidmorec4900be2008-11-20 21:11:42 -08001161 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598,
Auke Kok9a799d72007-09-15 14:07:45 -07001162};
1163
Auke Kok3957d632007-10-31 15:22:10 -07001164struct ixgbe_info ixgbe_82598_info = {
Auke Kok9a799d72007-09-15 14:07:45 -07001165 .mac = ixgbe_mac_82598EB,
1166 .get_invariants = &ixgbe_get_invariants_82598,
1167 .mac_ops = &mac_ops_82598,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001168 .eeprom_ops = &eeprom_ops_82598,
1169 .phy_ops = &phy_ops_82598,
Auke Kok9a799d72007-09-15 14:07:45 -07001170};
1171