blob: 35a06b47587bd2bf57a376bf4f95ee65a7c93c0e [file] [log] [blame]
Auke Kok9a799d72007-09-15 14:07:45 -07001/*******************************************************************************
2
3 Intel 10 Gigabit PCI Express Linux driver
Shannon Nelson8c47eaa2010-01-13 01:49:34 +00004 Copyright(c) 1999 - 2010 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);
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +000044static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -070045 ixgbe_link_speed speed,
46 bool autoneg,
47 bool autoneg_wait_to_complete);
Donald Skidmorec4900be2008-11-20 21:11:42 -080048static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
49 u8 *eeprom_data);
Auke Kok9a799d72007-09-15 14:07:45 -070050
Jesse Brandeburgc44ade92008-09-11 19:59:59 -070051/**
Mallikarjuna R Chilakala202ff1e2009-08-03 07:20:38 +000052 * ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
53 * @hw: pointer to the HW structure
54 *
55 * The defaults for 82598 should be in the range of 50us to 50ms,
56 * however the hardware default for these parts is 500us to 1ms which is less
57 * than the 10ms recommended by the pci-e spec. To address this we need to
58 * increase the value to either 10ms to 250ms for capability version 1 config,
59 * or 16ms to 55ms for version 2.
60 **/
Don Skidmore7b25cdb2009-08-25 04:47:32 +000061static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
Mallikarjuna R Chilakala202ff1e2009-08-03 07:20:38 +000062{
63 struct ixgbe_adapter *adapter = hw->back;
64 u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
65 u16 pcie_devctl2;
66
67 /* only take action if timeout value is defaulted to 0 */
68 if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
69 goto out;
70
71 /*
72 * if capababilities version is type 1 we can write the
73 * timeout of 10ms to 250ms through the GCR register
74 */
75 if (!(gcr & IXGBE_GCR_CAP_VER2)) {
76 gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
77 goto out;
78 }
79
80 /*
81 * for version 2 capabilities we need to write the config space
82 * directly in order to set the completion timeout value for
83 * 16ms to 55ms
84 */
85 pci_read_config_word(adapter->pdev,
86 IXGBE_PCI_DEVICE_CONTROL2, &pcie_devctl2);
87 pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
88 pci_write_config_word(adapter->pdev,
89 IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
90out:
91 /* disable completion timeout resend */
92 gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
93 IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
94}
95
96/**
Peter P Waskiewicz Jreb7f1392009-02-01 01:18:58 -080097 * ixgbe_get_pcie_msix_count_82598 - Gets MSI-X vector count
98 * @hw: pointer to hardware structure
99 *
100 * Read PCIe configuration space, and get the MSI-X vector count from
101 * the capabilities table.
102 **/
Hannes Eder1aef47c2009-02-14 11:38:36 +0000103static u16 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw)
Peter P Waskiewicz Jreb7f1392009-02-01 01:18:58 -0800104{
105 struct ixgbe_adapter *adapter = hw->back;
106 u16 msix_count;
107 pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82598_CAPS,
108 &msix_count);
109 msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
110
111 /* MSI-X count is zero-based in HW, so increment to give proper value */
112 msix_count++;
113
114 return msix_count;
115}
116
117/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700118 */
Auke Kok9a799d72007-09-15 14:07:45 -0700119static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
120{
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700121 struct ixgbe_mac_info *mac = &hw->mac;
PJ Waskiewicz03cfa202009-03-19 01:23:29 +0000122
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700123 /* Call PHY identify routine to get the phy type */
124 ixgbe_identify_phy_generic(hw);
Auke Kok3957d632007-10-31 15:22:10 -0700125
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000126 mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
127 mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
128 mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
129 mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
130 mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
131 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);
132
133 return 0;
134}
135
136/**
137 * ixgbe_init_phy_ops_82598 - PHY/SFP specific init
138 * @hw: pointer to hardware structure
139 *
140 * Initialize any function pointers that were not able to be
141 * set during get_invariants because the PHY/SFP type was
142 * not known. Perform the SFP init if necessary.
143 *
144 **/
Don Skidmore7b25cdb2009-08-25 04:47:32 +0000145static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000146{
147 struct ixgbe_mac_info *mac = &hw->mac;
148 struct ixgbe_phy_info *phy = &hw->phy;
149 s32 ret_val = 0;
150 u16 list_offset, data_offset;
151
152 /* Identify the PHY */
153 phy->ops.identify(hw);
154
155 /* Overwrite the link function pointers if copper PHY */
156 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
157 mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000158 mac->ops.get_link_capabilities =
159 &ixgbe_get_copper_link_capabilities_82598;
160 }
161
162 switch (hw->phy.type) {
Jesse Brandeburg0befdb32008-10-31 00:46:40 -0700163 case ixgbe_phy_tn:
164 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
165 phy->ops.get_firmware_version =
166 &ixgbe_get_phy_firmware_version_tnx;
167 break;
Donald Skidmorec4900be2008-11-20 21:11:42 -0800168 case ixgbe_phy_nl:
169 phy->ops.reset = &ixgbe_reset_phy_nl;
170
171 /* Call SFP+ identify routine to get the SFP+ module type */
172 ret_val = phy->ops.identify_sfp(hw);
173 if (ret_val != 0)
174 goto out;
175 else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
176 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
177 goto out;
178 }
179
180 /* Check to see if SFP+ module is supported */
181 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000182 &list_offset,
183 &data_offset);
Donald Skidmorec4900be2008-11-20 21:11:42 -0800184 if (ret_val != 0) {
185 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
186 goto out;
187 }
188 break;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700189 default:
190 break;
Auke Kok3957d632007-10-31 15:22:10 -0700191 }
192
Donald Skidmorec4900be2008-11-20 21:11:42 -0800193out:
194 return ret_val;
Auke Kok9a799d72007-09-15 14:07:45 -0700195}
196
197/**
Mallikarjuna R Chilakala202ff1e2009-08-03 07:20:38 +0000198 * ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
199 * @hw: pointer to hardware structure
200 *
201 * Starts the hardware using the generic start_hw function.
202 * Then set pcie completion timeout
203 **/
Don Skidmore7b25cdb2009-08-25 04:47:32 +0000204static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
Mallikarjuna R Chilakala202ff1e2009-08-03 07:20:38 +0000205{
206 s32 ret_val = 0;
207
208 ret_val = ixgbe_start_hw_generic(hw);
209
210 /* set the completion timeout for interface */
211 if (ret_val == 0)
212 ixgbe_set_pcie_completion_timeout(hw);
213
214 return ret_val;
215}
216
217/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700218 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
Auke Kok9a799d72007-09-15 14:07:45 -0700219 * @hw: pointer to hardware structure
220 * @speed: pointer to link speed
221 * @autoneg: boolean auto-negotiation value
222 *
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700223 * Determines the link capabilities by reading the AUTOC register.
Auke Kok9a799d72007-09-15 14:07:45 -0700224 **/
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700225static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700226 ixgbe_link_speed *speed,
227 bool *autoneg)
Auke Kok9a799d72007-09-15 14:07:45 -0700228{
229 s32 status = 0;
PJ Waskiewicz1eb99d52009-04-09 22:28:33 +0000230 u32 autoc = 0;
Auke Kok9a799d72007-09-15 14:07:45 -0700231
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800232 /*
233 * Determine link capabilities based on the stored value of AUTOC,
PJ Waskiewicz1eb99d52009-04-09 22:28:33 +0000234 * which represents EEPROM defaults. If AUTOC value has not been
235 * stored, use the current register value.
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800236 */
PJ Waskiewicz1eb99d52009-04-09 22:28:33 +0000237 if (hw->mac.orig_link_settings_stored)
238 autoc = hw->mac.orig_autoc;
239 else
240 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
241
242 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
Auke Kok9a799d72007-09-15 14:07:45 -0700243 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
244 *speed = IXGBE_LINK_SPEED_1GB_FULL;
245 *autoneg = false;
246 break;
247
248 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
249 *speed = IXGBE_LINK_SPEED_10GB_FULL;
250 *autoneg = false;
251 break;
252
253 case IXGBE_AUTOC_LMS_1G_AN:
254 *speed = IXGBE_LINK_SPEED_1GB_FULL;
255 *autoneg = true;
256 break;
257
258 case IXGBE_AUTOC_LMS_KX4_AN:
259 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
260 *speed = IXGBE_LINK_SPEED_UNKNOWN;
PJ Waskiewicz1eb99d52009-04-09 22:28:33 +0000261 if (autoc & IXGBE_AUTOC_KX4_SUPP)
Auke Kok9a799d72007-09-15 14:07:45 -0700262 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
PJ Waskiewicz1eb99d52009-04-09 22:28:33 +0000263 if (autoc & IXGBE_AUTOC_KX_SUPP)
Auke Kok9a799d72007-09-15 14:07:45 -0700264 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
265 *autoneg = true;
266 break;
267
268 default:
269 status = IXGBE_ERR_LINK_SETUP;
270 break;
271 }
272
273 return status;
274}
275
276/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700277 * ixgbe_get_copper_link_capabilities_82598 - Determines link capabilities
Auke Kok9a799d72007-09-15 14:07:45 -0700278 * @hw: pointer to hardware structure
279 * @speed: pointer to link speed
280 * @autoneg: boolean auto-negotiation value
281 *
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700282 * Determines the link capabilities by reading the AUTOC register.
Auke Kok9a799d72007-09-15 14:07:45 -0700283 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800284static s32 ixgbe_get_copper_link_capabilities_82598(struct ixgbe_hw *hw,
285 ixgbe_link_speed *speed,
286 bool *autoneg)
Auke Kok9a799d72007-09-15 14:07:45 -0700287{
288 s32 status = IXGBE_ERR_LINK_SETUP;
289 u16 speed_ability;
290
291 *speed = 0;
292 *autoneg = true;
293
Ben Hutchings6b73e102009-04-29 08:08:58 +0000294 status = hw->phy.ops.read_reg(hw, MDIO_SPEED, MDIO_MMD_PMAPMD,
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700295 &speed_ability);
Auke Kok9a799d72007-09-15 14:07:45 -0700296
297 if (status == 0) {
Ben Hutchings6b73e102009-04-29 08:08:58 +0000298 if (speed_ability & MDIO_SPEED_10G)
Auke Kok9a799d72007-09-15 14:07:45 -0700299 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
Ben Hutchings6b73e102009-04-29 08:08:58 +0000300 if (speed_ability & MDIO_PMA_SPEED_1000)
Auke Kok9a799d72007-09-15 14:07:45 -0700301 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
302 }
303
304 return status;
305}
306
307/**
308 * ixgbe_get_media_type_82598 - Determines media type
309 * @hw: pointer to hardware structure
310 *
311 * Returns the media type (fiber, copper, backplane)
312 **/
313static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
314{
315 enum ixgbe_media_type media_type;
316
317 /* Media type for I82598 is based on device ID */
318 switch (hw->device_id) {
Don Skidmore1e336d02009-01-26 20:57:51 -0800319 case IXGBE_DEV_ID_82598:
Don Skidmore2f21bdd2009-02-01 01:18:23 -0800320 case IXGBE_DEV_ID_82598_BX:
Don Skidmore1e336d02009-01-26 20:57:51 -0800321 media_type = ixgbe_media_type_backplane;
322 break;
Auke Kok9a799d72007-09-15 14:07:45 -0700323 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
324 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
Donald Skidmorec4900be2008-11-20 21:11:42 -0800325 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
326 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
Jesse Brandeburgb95f5fc2008-09-11 19:58:59 -0700327 case IXGBE_DEV_ID_82598EB_XF_LR:
Donald Skidmorec4900be2008-11-20 21:11:42 -0800328 case IXGBE_DEV_ID_82598EB_SFP_LOM:
Auke Kok9a799d72007-09-15 14:07:45 -0700329 media_type = ixgbe_media_type_fiber;
330 break;
Peter P Waskiewicz Jr6b1be192009-09-14 07:48:10 +0000331 case IXGBE_DEV_ID_82598EB_CX4:
332 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
333 media_type = ixgbe_media_type_cx4;
334 break;
Jesse Brandeburg0befdb32008-10-31 00:46:40 -0700335 case IXGBE_DEV_ID_82598AT:
Peter P Waskiewicz Jr3845bec2009-07-16 15:50:52 +0000336 case IXGBE_DEV_ID_82598AT2:
Jesse Brandeburg0befdb32008-10-31 00:46:40 -0700337 media_type = ixgbe_media_type_copper;
338 break;
Auke Kok9a799d72007-09-15 14:07:45 -0700339 default:
340 media_type = ixgbe_media_type_unknown;
341 break;
342 }
343
344 return media_type;
345}
346
347/**
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800348 * ixgbe_fc_enable_82598 - Enable flow control
349 * @hw: pointer to hardware structure
350 * @packetbuf_num: packet buffer number (0-7)
351 *
352 * Enable flow control according to the current settings.
353 **/
354static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
355{
356 s32 ret_val = 0;
357 u32 fctrl_reg;
358 u32 rmcs_reg;
359 u32 reg;
Don Skidmorea626e842010-02-11 04:13:49 +0000360 u32 link_speed = 0;
361 bool link_up;
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800362
Mallikarjuna R Chilakala620fa032009-06-04 11:11:13 +0000363#ifdef CONFIG_DCB
364 if (hw->fc.requested_mode == ixgbe_fc_pfc)
365 goto out;
366
367#endif /* CONFIG_DCB */
Don Skidmorea626e842010-02-11 04:13:49 +0000368 /*
369 * On 82598 having Rx FC on causes resets while doing 1G
370 * so if it's on turn it off once we know link_speed. For
371 * more details see 82598 Specification update.
372 */
373 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
374 if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
375 switch (hw->fc.requested_mode) {
376 case ixgbe_fc_full:
377 hw->fc.requested_mode = ixgbe_fc_tx_pause;
378 break;
379 case ixgbe_fc_rx_pause:
380 hw->fc.requested_mode = ixgbe_fc_none;
381 break;
382 default:
383 /* no change */
384 break;
385 }
386 }
387
Mallikarjuna R Chilakala620fa032009-06-04 11:11:13 +0000388 /* Negotiate the fc mode to use */
389 ret_val = ixgbe_fc_autoneg(hw);
390 if (ret_val)
391 goto out;
392
393 /* Disable any previous flow control settings */
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800394 fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
395 fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
396
397 rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
398 rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
399
400 /*
401 * The possible values of fc.current_mode are:
402 * 0: Flow control is completely disabled
403 * 1: Rx flow control is enabled (we can receive pause frames,
404 * but not send pause frames).
Mallikarjuna R Chilakala620fa032009-06-04 11:11:13 +0000405 * 2: Tx flow control is enabled (we can send pause frames but
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800406 * we do not support receiving pause frames).
407 * 3: Both Rx and Tx flow control (symmetric) are enabled.
408 * other: Invalid.
Mallikarjuna R Chilakala620fa032009-06-04 11:11:13 +0000409#ifdef CONFIG_DCB
410 * 4: Priority Flow Control is enabled.
411#endif
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800412 */
413 switch (hw->fc.current_mode) {
414 case ixgbe_fc_none:
Mallikarjuna R Chilakala620fa032009-06-04 11:11:13 +0000415 /*
416 * Flow control is disabled by software override or autoneg.
417 * The code below will actually disable it in the HW.
418 */
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800419 break;
420 case ixgbe_fc_rx_pause:
421 /*
422 * Rx Flow control is enabled and Tx Flow control is
423 * disabled by software override. Since there really
424 * isn't a way to advertise that we are capable of RX
425 * Pause ONLY, we will advertise that we support both
426 * symmetric and asymmetric Rx PAUSE. Later, we will
427 * disable the adapter's ability to send PAUSE frames.
428 */
429 fctrl_reg |= IXGBE_FCTRL_RFCE;
430 break;
431 case ixgbe_fc_tx_pause:
432 /*
433 * Tx Flow control is enabled, and Rx Flow control is
434 * disabled by software override.
435 */
436 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
437 break;
438 case ixgbe_fc_full:
439 /* Flow control (both Rx and Tx) is enabled by SW override. */
440 fctrl_reg |= IXGBE_FCTRL_RFCE;
441 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
442 break;
Mallikarjuna R Chilakala620fa032009-06-04 11:11:13 +0000443#ifdef CONFIG_DCB
444 case ixgbe_fc_pfc:
445 goto out;
446 break;
447#endif /* CONFIG_DCB */
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800448 default:
449 hw_dbg(hw, "Flow control param set incorrectly\n");
Peter P Waskiewicz Jr539e5f02009-09-30 12:07:38 +0000450 ret_val = IXGBE_ERR_CONFIG;
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800451 goto out;
452 break;
453 }
454
Mallikarjuna R Chilakala620fa032009-06-04 11:11:13 +0000455 /* Set 802.3x based flow control settings. */
PJ Waskiewicz2132d382009-04-09 22:26:21 +0000456 fctrl_reg |= IXGBE_FCTRL_DPF;
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800457 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
458 IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
459
460 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
461 if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
462 if (hw->fc.send_xon) {
463 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
464 (hw->fc.low_water | IXGBE_FCRTL_XONE));
465 } else {
466 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
467 hw->fc.low_water);
468 }
469
470 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num),
471 (hw->fc.high_water | IXGBE_FCRTH_FCEN));
472 }
473
474 /* Configure pause time (2 TCs per register) */
Peter P Waskiewicz Jr264857b2009-05-17 12:35:16 +0000475 reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num / 2));
Peter P Waskiewicz Jr0ecc0612009-02-06 21:46:54 -0800476 if ((packetbuf_num & 1) == 0)
477 reg = (reg & 0xFFFF0000) | hw->fc.pause_time;
478 else
479 reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16);
480 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg);
481
482 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));
483
484out:
485 return ret_val;
486}
487
488/**
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +0000489 * ixgbe_start_mac_link_82598 - Configures MAC link settings
Auke Kok9a799d72007-09-15 14:07:45 -0700490 * @hw: pointer to hardware structure
491 *
492 * Configures link settings based on values in the ixgbe_hw struct.
493 * Restarts the link. Performs autonegotiation if needed.
494 **/
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +0000495static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
496 bool autoneg_wait_to_complete)
Auke Kok9a799d72007-09-15 14:07:45 -0700497{
498 u32 autoc_reg;
499 u32 links_reg;
500 u32 i;
501 s32 status = 0;
502
Auke Kok9a799d72007-09-15 14:07:45 -0700503 /* Restart link */
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800504 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
Auke Kok9a799d72007-09-15 14:07:45 -0700505 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
506 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
507
508 /* Only poll for autoneg to complete if specified to do so */
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +0000509 if (autoneg_wait_to_complete) {
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800510 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
511 IXGBE_AUTOC_LMS_KX4_AN ||
512 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
513 IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
Auke Kok9a799d72007-09-15 14:07:45 -0700514 links_reg = 0; /* Just in case Autoneg time = 0 */
515 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
516 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
517 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
518 break;
519 msleep(100);
520 }
521 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
522 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700523 hw_dbg(hw, "Autonegotiation did not complete.\n");
Auke Kok9a799d72007-09-15 14:07:45 -0700524 }
525 }
526 }
527
Auke Kok9a799d72007-09-15 14:07:45 -0700528 /* Add delay to filter out noises during initial link setup */
529 msleep(50);
530
531 return status;
532}
533
534/**
Mallikarjuna R Chilakala734e9792009-12-15 11:57:20 +0000535 * ixgbe_validate_link_ready - Function looks for phy link
536 * @hw: pointer to hardware structure
537 *
538 * Function indicates success when phy link is available. If phy is not ready
539 * within 5 seconds of MAC indicating link, the function returns error.
540 **/
541static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
542{
543 u32 timeout;
544 u16 an_reg;
545
546 if (hw->device_id != IXGBE_DEV_ID_82598AT2)
547 return 0;
548
549 for (timeout = 0;
550 timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
551 hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
552
553 if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
554 (an_reg & MDIO_STAT1_LSTATUS))
555 break;
556
557 msleep(100);
558 }
559
560 if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
561 hw_dbg(hw, "Link was indicated but link is down\n");
562 return IXGBE_ERR_LINK_SETUP;
563 }
564
565 return 0;
566}
567
568/**
Auke Kok9a799d72007-09-15 14:07:45 -0700569 * ixgbe_check_mac_link_82598 - Get link/speed status
570 * @hw: pointer to hardware structure
571 * @speed: pointer to link speed
572 * @link_up: true is link is up, false otherwise
Jesse Brandeburgcf8280e2008-09-11 19:55:32 -0700573 * @link_up_wait_to_complete: bool used to wait for link up or not
Auke Kok9a799d72007-09-15 14:07:45 -0700574 *
575 * Reads the links register to determine if link is up and the current speed
576 **/
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700577static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
578 ixgbe_link_speed *speed, bool *link_up,
579 bool link_up_wait_to_complete)
Auke Kok9a799d72007-09-15 14:07:45 -0700580{
581 u32 links_reg;
Jesse Brandeburgcf8280e2008-09-11 19:55:32 -0700582 u32 i;
Donald Skidmorec4900be2008-11-20 21:11:42 -0800583 u16 link_reg, adapt_comp_reg;
584
585 /*
586 * SERDES PHY requires us to read link status from register 0xC79F.
587 * Bit 0 set indicates link is up/ready; clear indicates link down.
588 * 0xC00C is read to check that the XAUI lanes are active. Bit 0
589 * clear indicates active; set indicates inactive.
590 */
591 if (hw->phy.type == ixgbe_phy_nl) {
Ben Hutchings6b73e102009-04-29 08:08:58 +0000592 hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
593 hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
594 hw->phy.ops.read_reg(hw, 0xC00C, MDIO_MMD_PMAPMD,
Donald Skidmorec4900be2008-11-20 21:11:42 -0800595 &adapt_comp_reg);
596 if (link_up_wait_to_complete) {
597 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
598 if ((link_reg & 1) &&
599 ((adapt_comp_reg & 1) == 0)) {
600 *link_up = true;
601 break;
602 } else {
603 *link_up = false;
604 }
605 msleep(100);
606 hw->phy.ops.read_reg(hw, 0xC79F,
Ben Hutchings6b73e102009-04-29 08:08:58 +0000607 MDIO_MMD_PMAPMD,
Donald Skidmorec4900be2008-11-20 21:11:42 -0800608 &link_reg);
609 hw->phy.ops.read_reg(hw, 0xC00C,
Ben Hutchings6b73e102009-04-29 08:08:58 +0000610 MDIO_MMD_PMAPMD,
Donald Skidmorec4900be2008-11-20 21:11:42 -0800611 &adapt_comp_reg);
612 }
613 } else {
614 if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
615 *link_up = true;
616 else
617 *link_up = false;
618 }
619
620 if (*link_up == false)
621 goto out;
622 }
Auke Kok9a799d72007-09-15 14:07:45 -0700623
624 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
Jesse Brandeburgcf8280e2008-09-11 19:55:32 -0700625 if (link_up_wait_to_complete) {
626 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
627 if (links_reg & IXGBE_LINKS_UP) {
628 *link_up = true;
629 break;
630 } else {
631 *link_up = false;
632 }
633 msleep(100);
634 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
635 }
636 } else {
637 if (links_reg & IXGBE_LINKS_UP)
638 *link_up = true;
639 else
640 *link_up = false;
641 }
Auke Kok9a799d72007-09-15 14:07:45 -0700642
643 if (links_reg & IXGBE_LINKS_SPEED)
644 *speed = IXGBE_LINK_SPEED_10GB_FULL;
645 else
646 *speed = IXGBE_LINK_SPEED_1GB_FULL;
647
Mallikarjuna R Chilakala734e9792009-12-15 11:57:20 +0000648 if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && (*link_up == true) &&
649 (ixgbe_validate_link_ready(hw) != 0))
650 *link_up = false;
651
Mallikarjuna R Chilakala620fa032009-06-04 11:11:13 +0000652 /* if link is down, zero out the current_mode */
653 if (*link_up == false) {
654 hw->fc.current_mode = ixgbe_fc_none;
655 hw->fc.fc_was_autonegged = false;
656 }
Donald Skidmorec4900be2008-11-20 21:11:42 -0800657out:
Auke Kok9a799d72007-09-15 14:07:45 -0700658 return 0;
659}
660
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700661
Auke Kok9a799d72007-09-15 14:07:45 -0700662/**
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +0000663 * ixgbe_setup_mac_link_82598 - Set MAC link speed
Auke Kok9a799d72007-09-15 14:07:45 -0700664 * @hw: pointer to hardware structure
665 * @speed: new link speed
666 * @autoneg: true if auto-negotiation enabled
667 * @autoneg_wait_to_complete: true if waiting is needed to complete
668 *
669 * Set the link speed in the AUTOC register and restarts link.
670 **/
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +0000671static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800672 ixgbe_link_speed speed, bool autoneg,
673 bool autoneg_wait_to_complete)
Auke Kok9a799d72007-09-15 14:07:45 -0700674{
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800675 s32 status = 0;
676 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
677 u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
678 u32 autoc = curr_autoc;
679 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
Auke Kok9a799d72007-09-15 14:07:45 -0700680
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800681 /* Check to see if speed passed in is supported. */
682 ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
683 speed &= link_capabilities;
684
685 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
Auke Kok9a799d72007-09-15 14:07:45 -0700686 status = IXGBE_ERR_LINK_SETUP;
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800687
688 /* Set KX4/KX support according to speed requested */
689 else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
690 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
691 autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
692 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
693 autoc |= IXGBE_AUTOC_KX4_SUPP;
694 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
695 autoc |= IXGBE_AUTOC_KX_SUPP;
696 if (autoc != curr_autoc)
697 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
Auke Kok9a799d72007-09-15 14:07:45 -0700698 }
699
700 if (status == 0) {
Auke Kok9a799d72007-09-15 14:07:45 -0700701 /*
702 * Setup and restart the link based on the new values in
703 * ixgbe_hw This will write the AUTOC register based on the new
704 * stored values
705 */
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +0000706 status = ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
Auke Kok9a799d72007-09-15 14:07:45 -0700707 }
708
709 return status;
710}
711
712
713/**
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +0000714 * ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
Auke Kok9a799d72007-09-15 14:07:45 -0700715 * @hw: pointer to hardware structure
716 * @speed: new link speed
717 * @autoneg: true if autonegotiation enabled
718 * @autoneg_wait_to_complete: true if waiting is needed to complete
719 *
720 * Sets the link speed in the AUTOC register in the MAC and restarts link.
721 **/
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +0000722static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700723 ixgbe_link_speed speed,
724 bool autoneg,
725 bool autoneg_wait_to_complete)
Auke Kok9a799d72007-09-15 14:07:45 -0700726{
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700727 s32 status;
Auke Kok9a799d72007-09-15 14:07:45 -0700728
729 /* Setup the PHY according to input speed */
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700730 status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
731 autoneg_wait_to_complete);
Auke Kok9a799d72007-09-15 14:07:45 -0700732
Auke Kok3957d632007-10-31 15:22:10 -0700733 /* Set up MAC */
Mallikarjuna R Chilakala8620a102009-09-01 13:49:35 +0000734 ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
Auke Kok9a799d72007-09-15 14:07:45 -0700735
736 return status;
737}
738
739/**
740 * ixgbe_reset_hw_82598 - Performs hardware reset
741 * @hw: pointer to hardware structure
742 *
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700743 * Resets the hardware by resetting the transmit and receive units, masks and
Auke Kok9a799d72007-09-15 14:07:45 -0700744 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
745 * reset.
746 **/
747static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
748{
749 s32 status = 0;
Don Skidmore8ca783a2009-05-26 20:40:47 -0700750 s32 phy_status = 0;
Auke Kok9a799d72007-09-15 14:07:45 -0700751 u32 ctrl;
752 u32 gheccr;
753 u32 i;
754 u32 autoc;
755 u8 analog_val;
756
757 /* Call adapter stop to disable tx/rx and clear interrupts */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700758 hw->mac.ops.stop_adapter(hw);
Auke Kok9a799d72007-09-15 14:07:45 -0700759
760 /*
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700761 * Power up the Atlas Tx lanes if they are currently powered down.
762 * Atlas Tx lanes are powered down for MAC loopback tests, but
Auke Kok9a799d72007-09-15 14:07:45 -0700763 * they are not automatically restored on reset.
764 */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700765 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700766 if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700767 /* Enable Tx Atlas so packets can be transmitted again */
768 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
769 &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700770 analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700771 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
772 analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700773
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700774 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
775 &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700776 analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700777 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
778 analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700779
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700780 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
781 &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700782 analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700783 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
784 analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700785
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700786 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
787 &analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700788 analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700789 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
790 analog_val);
Auke Kok9a799d72007-09-15 14:07:45 -0700791 }
792
793 /* Reset PHY */
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000794 if (hw->phy.reset_disable == false) {
795 /* PHY ops must be identified and initialized prior to reset */
796
797 /* Init PHY and function pointers, perform SFP setup */
Don Skidmore8ca783a2009-05-26 20:40:47 -0700798 phy_status = hw->phy.ops.init(hw);
799 if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000800 goto reset_hw_out;
Don Skidmore8ca783a2009-05-26 20:40:47 -0700801 else if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
802 goto no_phy_reset;
803
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000804
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700805 hw->phy.ops.reset(hw);
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000806 }
Auke Kok9a799d72007-09-15 14:07:45 -0700807
Don Skidmore8ca783a2009-05-26 20:40:47 -0700808no_phy_reset:
Auke Kok9a799d72007-09-15 14:07:45 -0700809 /*
810 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
811 * access and verify no pending requests before reset
812 */
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000813 status = ixgbe_disable_pcie_master(hw);
814 if (status != 0) {
Auke Kok9a799d72007-09-15 14:07:45 -0700815 status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
816 hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
817 }
818
819 /*
820 * Issue global reset to the MAC. This needs to be a SW reset.
821 * If link reset is used, it might reset the MAC when mng is using it
822 */
823 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
824 IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
825 IXGBE_WRITE_FLUSH(hw);
826
827 /* Poll for reset bit to self-clear indicating reset is complete */
828 for (i = 0; i < 10; i++) {
829 udelay(1);
830 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
831 if (!(ctrl & IXGBE_CTRL_RST))
832 break;
833 }
834 if (ctrl & IXGBE_CTRL_RST) {
835 status = IXGBE_ERR_RESET_FAILED;
836 hw_dbg(hw, "Reset polling failed to complete.\n");
837 }
838
839 msleep(50);
840
841 gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
842 gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
843 IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
844
845 /*
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800846 * Store the original AUTOC value if it has not been
847 * stored off yet. Otherwise restore the stored original
848 * AUTOC value since the reset operation sets back to deaults.
Auke Kok9a799d72007-09-15 14:07:45 -0700849 */
850 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
Peter P Waskiewicz Jr3201d312009-02-05 23:54:21 -0800851 if (hw->mac.orig_link_settings_stored == false) {
852 hw->mac.orig_autoc = autoc;
853 hw->mac.orig_link_settings_stored = true;
854 } else if (autoc != hw->mac.orig_autoc) {
855 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
Auke Kok9a799d72007-09-15 14:07:45 -0700856 }
857
Waskiewicz Jr, Peter Paca6bee2009-05-17 12:32:48 +0000858 /*
859 * Store MAC address from RAR0, clear receive address registers, and
860 * clear the multicast table
861 */
862 hw->mac.ops.init_rx_addrs(hw);
863
Auke Kok9a799d72007-09-15 14:07:45 -0700864 /* Store the permanent mac address */
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700865 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
Auke Kok9a799d72007-09-15 14:07:45 -0700866
PJ Waskiewicz04f165e2009-04-09 22:27:57 +0000867reset_hw_out:
Don Skidmore8ca783a2009-05-26 20:40:47 -0700868 if (phy_status)
869 status = phy_status;
870
Auke Kok9a799d72007-09-15 14:07:45 -0700871 return status;
872}
873
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700874/**
875 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
876 * @hw: pointer to hardware struct
877 * @rar: receive address register index to associate with a VMDq index
878 * @vmdq: VMDq set index
879 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800880static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700881{
882 u32 rar_high;
883
884 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
885 rar_high &= ~IXGBE_RAH_VIND_MASK;
886 rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
887 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
888 return 0;
889}
890
891/**
892 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
893 * @hw: pointer to hardware struct
894 * @rar: receive address register index to associate with a VMDq index
895 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
896 **/
897static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
898{
899 u32 rar_high;
900 u32 rar_entries = hw->mac.num_rar_entries;
901
902 if (rar < rar_entries) {
903 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
904 if (rar_high & IXGBE_RAH_VIND_MASK) {
905 rar_high &= ~IXGBE_RAH_VIND_MASK;
906 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
907 }
908 } else {
909 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
910 }
911
912 return 0;
913}
914
915/**
916 * ixgbe_set_vfta_82598 - Set VLAN filter table
917 * @hw: pointer to hardware structure
918 * @vlan: VLAN id to write to VLAN filter
919 * @vind: VMDq output index that maps queue to VLAN id in VFTA
920 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
921 *
922 * Turn on/off specified VLAN in the VLAN filter table.
923 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800924static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
925 bool vlan_on)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700926{
927 u32 regindex;
928 u32 bitindex;
929 u32 bits;
930 u32 vftabyte;
931
932 if (vlan > 4095)
933 return IXGBE_ERR_PARAM;
934
935 /* Determine 32-bit word position in array */
936 regindex = (vlan >> 5) & 0x7F; /* upper seven bits */
937
938 /* Determine the location of the (VMD) queue index */
939 vftabyte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
940 bitindex = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
941
942 /* Set the nibble for VMD queue index */
943 bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
944 bits &= (~(0x0F << bitindex));
945 bits |= (vind << bitindex);
946 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
947
948 /* Determine the location of the bit for this VLAN id */
949 bitindex = vlan & 0x1F; /* lower five bits */
950
951 bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
952 if (vlan_on)
953 /* Turn on this VLAN id */
954 bits |= (1 << bitindex);
955 else
956 /* Turn off this VLAN id */
957 bits &= ~(1 << bitindex);
958 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
959
960 return 0;
961}
962
963/**
964 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
965 * @hw: pointer to hardware structure
966 *
967 * Clears the VLAN filer table, and the VMDq index associated with the filter
968 **/
969static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
970{
971 u32 offset;
972 u32 vlanbyte;
973
974 for (offset = 0; offset < hw->mac.vft_size; offset++)
975 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
976
977 for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
978 for (offset = 0; offset < hw->mac.vft_size; offset++)
979 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
Peter P Waskiewiczb4617242008-09-11 20:04:46 -0700980 0);
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700981
982 return 0;
983}
984
985/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700986 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
987 * @hw: pointer to hardware structure
988 * @reg: analog register to read
989 * @val: read value
990 *
991 * Performs read operation to Atlas analog register specified.
992 **/
Hannes Edere855aac2008-12-26 00:03:59 -0800993static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -0700994{
995 u32 atlas_ctl;
996
997 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
998 IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
999 IXGBE_WRITE_FLUSH(hw);
1000 udelay(10);
1001 atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
1002 *val = (u8)atlas_ctl;
1003
1004 return 0;
1005}
1006
1007/**
1008 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
1009 * @hw: pointer to hardware structure
1010 * @reg: atlas register to write
1011 * @val: value to write
1012 *
1013 * Performs write operation to Atlas analog register specified.
1014 **/
Hannes Edere855aac2008-12-26 00:03:59 -08001015static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001016{
1017 u32 atlas_ctl;
1018
1019 atlas_ctl = (reg << 8) | val;
1020 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
1021 IXGBE_WRITE_FLUSH(hw);
1022 udelay(10);
1023
1024 return 0;
1025}
1026
1027/**
Donald Skidmorec4900be2008-11-20 21:11:42 -08001028 * ixgbe_read_i2c_eeprom_82598 - Read 8 bit EEPROM word of an SFP+ module
1029 * over I2C interface through an intermediate phy.
1030 * @hw: pointer to hardware structure
1031 * @byte_offset: EEPROM byte offset to read
1032 * @eeprom_data: value read
1033 *
1034 * Performs byte read operation to SFP module's EEPROM over I2C interface.
1035 **/
Hannes Edere855aac2008-12-26 00:03:59 -08001036static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1037 u8 *eeprom_data)
Donald Skidmorec4900be2008-11-20 21:11:42 -08001038{
1039 s32 status = 0;
1040 u16 sfp_addr = 0;
1041 u16 sfp_data = 0;
1042 u16 sfp_stat = 0;
1043 u32 i;
1044
1045 if (hw->phy.type == ixgbe_phy_nl) {
1046 /*
1047 * phy SDA/SCL registers are at addresses 0xC30A to
1048 * 0xC30D. These registers are used to talk to the SFP+
1049 * module's EEPROM through the SDA/SCL (I2C) interface.
1050 */
1051 sfp_addr = (IXGBE_I2C_EEPROM_DEV_ADDR << 8) + byte_offset;
1052 sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1053 hw->phy.ops.write_reg(hw,
1054 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
Ben Hutchings6b73e102009-04-29 08:08:58 +00001055 MDIO_MMD_PMAPMD,
Donald Skidmorec4900be2008-11-20 21:11:42 -08001056 sfp_addr);
1057
1058 /* Poll status */
1059 for (i = 0; i < 100; i++) {
1060 hw->phy.ops.read_reg(hw,
1061 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
Ben Hutchings6b73e102009-04-29 08:08:58 +00001062 MDIO_MMD_PMAPMD,
Donald Skidmorec4900be2008-11-20 21:11:42 -08001063 &sfp_stat);
1064 sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1065 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1066 break;
1067 msleep(10);
1068 }
1069
1070 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1071 hw_dbg(hw, "EEPROM read did not pass.\n");
1072 status = IXGBE_ERR_SFP_NOT_PRESENT;
1073 goto out;
1074 }
1075
1076 /* Read data */
1077 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
Ben Hutchings6b73e102009-04-29 08:08:58 +00001078 MDIO_MMD_PMAPMD, &sfp_data);
Donald Skidmorec4900be2008-11-20 21:11:42 -08001079
1080 *eeprom_data = (u8)(sfp_data >> 8);
1081 } else {
1082 status = IXGBE_ERR_PHY;
1083 goto out;
1084 }
1085
1086out:
1087 return status;
1088}
1089
1090/**
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001091 * ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
1092 * @hw: pointer to hardware structure
1093 *
1094 * Determines physical layer capabilities of the current configuration.
1095 **/
PJ Waskiewicz11afc1b2009-02-27 15:44:30 +00001096static u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001097{
PJ Waskiewicz11afc1b2009-02-27 15:44:30 +00001098 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001099 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1100 u32 pma_pmd_10g = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
1101 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
1102 u16 ext_ability = 0;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001103
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001104 hw->phy.ops.identify(hw);
1105
1106 /* Copper PHY must be checked before AUTOC LMS to determine correct
1107 * physical layer because 10GBase-T PHYs use LMS = KX4/KX */
1108 if (hw->phy.type == ixgbe_phy_tn ||
1109 hw->phy.type == ixgbe_phy_cu_unknown) {
Ben Hutchings6b73e102009-04-29 08:08:58 +00001110 hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE, MDIO_MMD_PMAPMD,
1111 &ext_ability);
1112 if (ext_ability & MDIO_PMA_EXTABLE_10GBT)
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001113 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
Ben Hutchings6b73e102009-04-29 08:08:58 +00001114 if (ext_ability & MDIO_PMA_EXTABLE_1000BT)
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001115 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
Ben Hutchings6b73e102009-04-29 08:08:58 +00001116 if (ext_ability & MDIO_PMA_EXTABLE_100BTX)
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001117 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
1118 goto out;
1119 }
1120
1121 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
1122 case IXGBE_AUTOC_LMS_1G_AN:
1123 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
1124 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX)
1125 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1126 else
1127 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
Don Skidmore1e336d02009-01-26 20:57:51 -08001128 break;
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001129 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
1130 if (pma_pmd_10g == IXGBE_AUTOC_10G_CX4)
1131 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
1132 else if (pma_pmd_10g == IXGBE_AUTOC_10G_KX4)
1133 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1134 else /* XAUI */
1135 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001136 break;
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001137 case IXGBE_AUTOC_LMS_KX4_AN:
1138 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
1139 if (autoc & IXGBE_AUTOC_KX_SUPP)
1140 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1141 if (autoc & IXGBE_AUTOC_KX4_SUPP)
1142 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
Donald Skidmorec4900be2008-11-20 21:11:42 -08001143 break;
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001144 default:
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001145 break;
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001146 }
1147
1148 if (hw->phy.type == ixgbe_phy_nl) {
Donald Skidmorec4900be2008-11-20 21:11:42 -08001149 hw->phy.ops.identify_sfp(hw);
1150
1151 switch (hw->phy.sfp_type) {
1152 case ixgbe_sfp_type_da_cu:
1153 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1154 break;
1155 case ixgbe_sfp_type_sr:
1156 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1157 break;
1158 case ixgbe_sfp_type_lr:
1159 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1160 break;
1161 default:
1162 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1163 break;
1164 }
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001165 }
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001166
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001167 switch (hw->device_id) {
1168 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
1169 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1170 break;
1171 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
1172 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
1173 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
1174 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1175 break;
1176 case IXGBE_DEV_ID_82598EB_XF_LR:
1177 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1178 break;
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001179 default:
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001180 break;
1181 }
1182
Peter P Waskiewicz Jr04193052009-04-09 22:28:50 +00001183out:
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001184 return physical_layer;
1185}
1186
Auke Kok9a799d72007-09-15 14:07:45 -07001187static struct ixgbe_mac_operations mac_ops_82598 = {
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001188 .init_hw = &ixgbe_init_hw_generic,
1189 .reset_hw = &ixgbe_reset_hw_82598,
Mallikarjuna R Chilakala202ff1e2009-08-03 07:20:38 +00001190 .start_hw = &ixgbe_start_hw_82598,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001191 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
Auke Kok9a799d72007-09-15 14:07:45 -07001192 .get_media_type = &ixgbe_get_media_type_82598,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001193 .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82598,
PJ Waskiewicz11afc1b2009-02-27 15:44:30 +00001194 .enable_rx_dma = &ixgbe_enable_rx_dma_generic,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001195 .get_mac_addr = &ixgbe_get_mac_addr_generic,
1196 .stop_adapter = &ixgbe_stop_adapter_generic,
PJ Waskiewicz11afc1b2009-02-27 15:44:30 +00001197 .get_bus_info = &ixgbe_get_bus_info_generic,
1198 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001199 .read_analog_reg8 = &ixgbe_read_analog_reg8_82598,
1200 .write_analog_reg8 = &ixgbe_write_analog_reg8_82598,
Auke Kok3957d632007-10-31 15:22:10 -07001201 .setup_link = &ixgbe_setup_mac_link_82598,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001202 .check_link = &ixgbe_check_mac_link_82598,
1203 .get_link_capabilities = &ixgbe_get_link_capabilities_82598,
1204 .led_on = &ixgbe_led_on_generic,
1205 .led_off = &ixgbe_led_off_generic,
PJ Waskiewicz87c12012009-04-08 13:20:31 +00001206 .blink_led_start = &ixgbe_blink_led_start_generic,
1207 .blink_led_stop = &ixgbe_blink_led_stop_generic,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001208 .set_rar = &ixgbe_set_rar_generic,
1209 .clear_rar = &ixgbe_clear_rar_generic,
1210 .set_vmdq = &ixgbe_set_vmdq_82598,
1211 .clear_vmdq = &ixgbe_clear_vmdq_82598,
1212 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
1213 .update_uc_addr_list = &ixgbe_update_uc_addr_list_generic,
1214 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
1215 .enable_mc = &ixgbe_enable_mc_generic,
1216 .disable_mc = &ixgbe_disable_mc_generic,
1217 .clear_vfta = &ixgbe_clear_vfta_82598,
1218 .set_vfta = &ixgbe_set_vfta_82598,
Mallikarjuna R Chilakala620fa032009-06-04 11:11:13 +00001219 .fc_enable = &ixgbe_fc_enable_82598,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001220};
1221
1222static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1223 .init_params = &ixgbe_init_eeprom_params_generic,
1224 .read = &ixgbe_read_eeprom_generic,
1225 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
1226 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
1227};
1228
1229static struct ixgbe_phy_operations phy_ops_82598 = {
1230 .identify = &ixgbe_identify_phy_generic,
Donald Skidmorec4900be2008-11-20 21:11:42 -08001231 .identify_sfp = &ixgbe_identify_sfp_module_generic,
PJ Waskiewicz04f165e2009-04-09 22:27:57 +00001232 .init = &ixgbe_init_phy_ops_82598,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001233 .reset = &ixgbe_reset_phy_generic,
1234 .read_reg = &ixgbe_read_phy_reg_generic,
1235 .write_reg = &ixgbe_write_phy_reg_generic,
1236 .setup_link = &ixgbe_setup_phy_link_generic,
1237 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
Donald Skidmorec4900be2008-11-20 21:11:42 -08001238 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598,
Auke Kok9a799d72007-09-15 14:07:45 -07001239};
1240
Auke Kok3957d632007-10-31 15:22:10 -07001241struct ixgbe_info ixgbe_82598_info = {
Auke Kok9a799d72007-09-15 14:07:45 -07001242 .mac = ixgbe_mac_82598EB,
1243 .get_invariants = &ixgbe_get_invariants_82598,
1244 .mac_ops = &mac_ops_82598,
Jesse Brandeburgc44ade92008-09-11 19:59:59 -07001245 .eeprom_ops = &eeprom_ops_82598,
1246 .phy_ops = &phy_ops_82598,
Auke Kok9a799d72007-09-15 14:07:45 -07001247};
1248