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9a799d71 AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
67359c3c | 4 | Copyright(c) 1999 - 2015 Intel Corporation. |
9a799d71 AK |
5 | |
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: | |
b89aae71 | 23 | Linux NICS <linux.nics@intel.com> |
9a799d71 AK |
24 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
25 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
26 | ||
27 | *******************************************************************************/ | |
28 | ||
29 | #include <linux/types.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/pci.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/vmalloc.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/in.h> | |
a6b7a407 | 36 | #include <linux/interrupt.h> |
9a799d71 AK |
37 | #include <linux/ip.h> |
38 | #include <linux/tcp.h> | |
897ab156 | 39 | #include <linux/sctp.h> |
60127865 | 40 | #include <linux/pkt_sched.h> |
9a799d71 | 41 | #include <linux/ipv6.h> |
5a0e3ad6 | 42 | #include <linux/slab.h> |
9a799d71 AK |
43 | #include <net/checksum.h> |
44 | #include <net/ip6_checksum.h> | |
c762dff2 | 45 | #include <linux/etherdevice.h> |
9a799d71 | 46 | #include <linux/ethtool.h> |
01789349 | 47 | #include <linux/if.h> |
9a799d71 | 48 | #include <linux/if_vlan.h> |
2a47fa45 | 49 | #include <linux/if_macvlan.h> |
815cccbf | 50 | #include <linux/if_bridge.h> |
70c71606 | 51 | #include <linux/prefetch.h> |
eacd73f7 | 52 | #include <scsi/fc/fc_fcoe.h> |
3f207800 | 53 | #include <net/vxlan.h> |
9a799d71 | 54 | |
c762dff2 MP |
55 | #ifdef CONFIG_OF |
56 | #include <linux/of_net.h> | |
57 | #endif | |
58 | ||
59 | #ifdef CONFIG_SPARC | |
60 | #include <asm/idprom.h> | |
61 | #include <asm/prom.h> | |
62 | #endif | |
63 | ||
9a799d71 AK |
64 | #include "ixgbe.h" |
65 | #include "ixgbe_common.h" | |
ee5f784a | 66 | #include "ixgbe_dcb_82599.h" |
1cdd1ec8 | 67 | #include "ixgbe_sriov.h" |
9a799d71 AK |
68 | |
69 | char ixgbe_driver_name[] = "ixgbe"; | |
9c8eb720 | 70 | static const char ixgbe_driver_string[] = |
e8e9f696 | 71 | "Intel(R) 10 Gigabit PCI Express Network Driver"; |
8af3c33f | 72 | #ifdef IXGBE_FCOE |
ea81875a NP |
73 | char ixgbe_default_device_descr[] = |
74 | "Intel(R) 10 Gigabit Network Connection"; | |
8af3c33f JK |
75 | #else |
76 | static char ixgbe_default_device_descr[] = | |
77 | "Intel(R) 10 Gigabit Network Connection"; | |
78 | #endif | |
21dd5601 | 79 | #define DRV_VERSION "4.2.1-k" |
9c8eb720 | 80 | const char ixgbe_driver_version[] = DRV_VERSION; |
a52055e0 | 81 | static const char ixgbe_copyright[] = |
67359c3c | 82 | "Copyright (c) 1999-2015 Intel Corporation."; |
9a799d71 | 83 | |
f44e751b DS |
84 | static const char ixgbe_overheat_msg[] = "Network adapter has been stopped because it has over heated. Restart the computer. If the problem persists, power off the system and replace the adapter"; |
85 | ||
9a799d71 | 86 | static const struct ixgbe_info *ixgbe_info_tbl[] = { |
6a14ee0c DS |
87 | [board_82598] = &ixgbe_82598_info, |
88 | [board_82599] = &ixgbe_82599_info, | |
89 | [board_X540] = &ixgbe_X540_info, | |
90 | [board_X550] = &ixgbe_X550_info, | |
91 | [board_X550EM_x] = &ixgbe_X550EM_x_info, | |
9a799d71 AK |
92 | }; |
93 | ||
94 | /* ixgbe_pci_tbl - PCI Device ID Table | |
95 | * | |
96 | * Wildcard entries (PCI_ANY_ID) should come last | |
97 | * Last entry must be all 0s | |
98 | * | |
99 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
100 | * Class, Class Mask, private data (not used) } | |
101 | */ | |
9baa3c34 | 102 | static const struct pci_device_id ixgbe_pci_tbl[] = { |
54239c67 AD |
103 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), board_82598 }, |
104 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), board_82598 }, | |
105 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), board_82598 }, | |
106 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), board_82598 }, | |
107 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), board_82598 }, | |
108 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), board_82598 }, | |
109 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), board_82598 }, | |
110 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), board_82598 }, | |
111 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), board_82598 }, | |
112 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), board_82598 }, | |
113 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), board_82598 }, | |
114 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), board_82598 }, | |
115 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), board_82599 }, | |
116 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), board_82599 }, | |
117 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), board_82599 }, | |
118 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), board_82599 }, | |
119 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), board_82599 }, | |
120 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), board_82599 }, | |
121 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), board_82599 }, | |
122 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE), board_82599 }, | |
123 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE), board_82599 }, | |
124 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), board_82599 }, | |
125 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), board_82599 }, | |
126 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T), board_X540 }, | |
127 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2), board_82599 }, | |
128 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS), board_82599 }, | |
8f58332b | 129 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_QSFP_SF_QP), board_82599 }, |
7d145282 | 130 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599EN_SFP), board_82599 }, |
9e791e4a | 131 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF_QP), board_82599 }, |
df376f0d | 132 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T1), board_X540 }, |
6a14ee0c DS |
133 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550T), board_X550}, |
134 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_KX4), board_X550EM_x}, | |
135 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_KR), board_X550EM_x}, | |
deda562a | 136 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_10G_T), board_X550EM_x}, |
018d7146 | 137 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_SFP), board_X550EM_x}, |
9a799d71 AK |
138 | /* required last entry */ |
139 | {0, } | |
140 | }; | |
141 | MODULE_DEVICE_TABLE(pci, ixgbe_pci_tbl); | |
142 | ||
5dd2d332 | 143 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 144 | static int ixgbe_notify_dca(struct notifier_block *, unsigned long event, |
e8e9f696 | 145 | void *p); |
bd0362dd JC |
146 | static struct notifier_block dca_notifier = { |
147 | .notifier_call = ixgbe_notify_dca, | |
148 | .next = NULL, | |
149 | .priority = 0 | |
150 | }; | |
151 | #endif | |
152 | ||
1cdd1ec8 GR |
153 | #ifdef CONFIG_PCI_IOV |
154 | static unsigned int max_vfs; | |
155 | module_param(max_vfs, uint, 0); | |
e8e9f696 | 156 | MODULE_PARM_DESC(max_vfs, |
170e8543 | 157 | "Maximum number of virtual functions to allocate per physical function - default is zero and maximum value is 63. (Deprecated)"); |
1cdd1ec8 GR |
158 | #endif /* CONFIG_PCI_IOV */ |
159 | ||
8ef78adc PWJ |
160 | static unsigned int allow_unsupported_sfp; |
161 | module_param(allow_unsupported_sfp, uint, 0); | |
162 | MODULE_PARM_DESC(allow_unsupported_sfp, | |
163 | "Allow unsupported and untested SFP+ modules on 82599-based adapters"); | |
164 | ||
b3f4d599 | 165 | #define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) |
166 | static int debug = -1; | |
167 | module_param(debug, int, 0); | |
168 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
169 | ||
9a799d71 AK |
170 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); |
171 | MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver"); | |
172 | MODULE_LICENSE("GPL"); | |
173 | MODULE_VERSION(DRV_VERSION); | |
174 | ||
780484d8 MR |
175 | static struct workqueue_struct *ixgbe_wq; |
176 | ||
14438464 MR |
177 | static bool ixgbe_check_cfg_remove(struct ixgbe_hw *hw, struct pci_dev *pdev); |
178 | ||
b8e82001 JK |
179 | static int ixgbe_read_pci_cfg_word_parent(struct ixgbe_adapter *adapter, |
180 | u32 reg, u16 *value) | |
181 | { | |
b8e82001 JK |
182 | struct pci_dev *parent_dev; |
183 | struct pci_bus *parent_bus; | |
184 | ||
185 | parent_bus = adapter->pdev->bus->parent; | |
186 | if (!parent_bus) | |
187 | return -1; | |
188 | ||
189 | parent_dev = parent_bus->self; | |
190 | if (!parent_dev) | |
191 | return -1; | |
192 | ||
c0798edf | 193 | if (!pci_is_pcie(parent_dev)) |
b8e82001 JK |
194 | return -1; |
195 | ||
c0798edf | 196 | pcie_capability_read_word(parent_dev, reg, value); |
14438464 MR |
197 | if (*value == IXGBE_FAILED_READ_CFG_WORD && |
198 | ixgbe_check_cfg_remove(&adapter->hw, parent_dev)) | |
199 | return -1; | |
b8e82001 JK |
200 | return 0; |
201 | } | |
202 | ||
203 | static s32 ixgbe_get_parent_bus_info(struct ixgbe_adapter *adapter) | |
204 | { | |
205 | struct ixgbe_hw *hw = &adapter->hw; | |
206 | u16 link_status = 0; | |
207 | int err; | |
208 | ||
209 | hw->bus.type = ixgbe_bus_type_pci_express; | |
210 | ||
211 | /* Get the negotiated link width and speed from PCI config space of the | |
212 | * parent, as this device is behind a switch | |
213 | */ | |
214 | err = ixgbe_read_pci_cfg_word_parent(adapter, 18, &link_status); | |
215 | ||
216 | /* assume caller will handle error case */ | |
217 | if (err) | |
218 | return err; | |
219 | ||
220 | hw->bus.width = ixgbe_convert_bus_width(link_status); | |
221 | hw->bus.speed = ixgbe_convert_bus_speed(link_status); | |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
e027d1ae JK |
226 | /** |
227 | * ixgbe_check_from_parent - Determine whether PCIe info should come from parent | |
228 | * @hw: hw specific details | |
229 | * | |
230 | * This function is used by probe to determine whether a device's PCI-Express | |
231 | * bandwidth details should be gathered from the parent bus instead of from the | |
232 | * device. Used to ensure that various locations all have the correct device ID | |
233 | * checks. | |
234 | */ | |
235 | static inline bool ixgbe_pcie_from_parent(struct ixgbe_hw *hw) | |
236 | { | |
237 | switch (hw->device_id) { | |
238 | case IXGBE_DEV_ID_82599_SFP_SF_QP: | |
8f58332b | 239 | case IXGBE_DEV_ID_82599_QSFP_SF_QP: |
e027d1ae JK |
240 | return true; |
241 | default: | |
242 | return false; | |
243 | } | |
244 | } | |
245 | ||
246 | static void ixgbe_check_minimum_link(struct ixgbe_adapter *adapter, | |
247 | int expected_gts) | |
248 | { | |
f9328bc6 | 249 | struct ixgbe_hw *hw = &adapter->hw; |
e027d1ae JK |
250 | int max_gts = 0; |
251 | enum pci_bus_speed speed = PCI_SPEED_UNKNOWN; | |
252 | enum pcie_link_width width = PCIE_LNK_WIDTH_UNKNOWN; | |
253 | struct pci_dev *pdev; | |
254 | ||
f9328bc6 DS |
255 | /* Some devices are not connected over PCIe and thus do not negotiate |
256 | * speed. These devices do not have valid bus info, and thus any report | |
257 | * we generate may not be correct. | |
258 | */ | |
259 | if (hw->bus.type == ixgbe_bus_type_internal) | |
260 | return; | |
261 | ||
56d1392f | 262 | /* determine whether to use the parent device */ |
e027d1ae JK |
263 | if (ixgbe_pcie_from_parent(&adapter->hw)) |
264 | pdev = adapter->pdev->bus->parent->self; | |
265 | else | |
266 | pdev = adapter->pdev; | |
267 | ||
268 | if (pcie_get_minimum_link(pdev, &speed, &width) || | |
269 | speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN) { | |
270 | e_dev_warn("Unable to determine PCI Express bandwidth.\n"); | |
271 | return; | |
272 | } | |
273 | ||
274 | switch (speed) { | |
275 | case PCIE_SPEED_2_5GT: | |
276 | /* 8b/10b encoding reduces max throughput by 20% */ | |
277 | max_gts = 2 * width; | |
278 | break; | |
279 | case PCIE_SPEED_5_0GT: | |
280 | /* 8b/10b encoding reduces max throughput by 20% */ | |
281 | max_gts = 4 * width; | |
282 | break; | |
283 | case PCIE_SPEED_8_0GT: | |
9f0a433c | 284 | /* 128b/130b encoding reduces throughput by less than 2% */ |
e027d1ae JK |
285 | max_gts = 8 * width; |
286 | break; | |
287 | default: | |
288 | e_dev_warn("Unable to determine PCI Express bandwidth.\n"); | |
289 | return; | |
290 | } | |
291 | ||
292 | e_dev_info("PCI Express bandwidth of %dGT/s available\n", | |
293 | max_gts); | |
294 | e_dev_info("(Speed:%s, Width: x%d, Encoding Loss:%s)\n", | |
295 | (speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : | |
296 | speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : | |
297 | speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : | |
298 | "Unknown"), | |
299 | width, | |
300 | (speed == PCIE_SPEED_2_5GT ? "20%" : | |
301 | speed == PCIE_SPEED_5_0GT ? "20%" : | |
9f0a433c | 302 | speed == PCIE_SPEED_8_0GT ? "<2%" : |
e027d1ae JK |
303 | "Unknown")); |
304 | ||
305 | if (max_gts < expected_gts) { | |
306 | e_dev_warn("This is not sufficient for optimal performance of this card.\n"); | |
307 | e_dev_warn("For optimal performance, at least %dGT/s of bandwidth is required.\n", | |
308 | expected_gts); | |
309 | e_dev_warn("A slot with more lanes and/or higher speed is suggested.\n"); | |
310 | } | |
311 | } | |
312 | ||
7086400d AD |
313 | static void ixgbe_service_event_schedule(struct ixgbe_adapter *adapter) |
314 | { | |
315 | if (!test_bit(__IXGBE_DOWN, &adapter->state) && | |
09f40aed | 316 | !test_bit(__IXGBE_REMOVING, &adapter->state) && |
7086400d | 317 | !test_and_set_bit(__IXGBE_SERVICE_SCHED, &adapter->state)) |
780484d8 | 318 | queue_work(ixgbe_wq, &adapter->service_task); |
7086400d AD |
319 | } |
320 | ||
2a1a091c MR |
321 | static void ixgbe_remove_adapter(struct ixgbe_hw *hw) |
322 | { | |
323 | struct ixgbe_adapter *adapter = hw->back; | |
324 | ||
325 | if (!hw->hw_addr) | |
326 | return; | |
327 | hw->hw_addr = NULL; | |
328 | e_dev_err("Adapter removed\n"); | |
58cf663f MR |
329 | if (test_bit(__IXGBE_SERVICE_INITED, &adapter->state)) |
330 | ixgbe_service_event_schedule(adapter); | |
2a1a091c MR |
331 | } |
332 | ||
f8e2472f | 333 | static void ixgbe_check_remove(struct ixgbe_hw *hw, u32 reg) |
2a1a091c MR |
334 | { |
335 | u32 value; | |
336 | ||
337 | /* The following check not only optimizes a bit by not | |
338 | * performing a read on the status register when the | |
339 | * register just read was a status register read that | |
340 | * returned IXGBE_FAILED_READ_REG. It also blocks any | |
341 | * potential recursion. | |
342 | */ | |
343 | if (reg == IXGBE_STATUS) { | |
344 | ixgbe_remove_adapter(hw); | |
345 | return; | |
346 | } | |
347 | value = ixgbe_read_reg(hw, IXGBE_STATUS); | |
348 | if (value == IXGBE_FAILED_READ_REG) | |
349 | ixgbe_remove_adapter(hw); | |
350 | } | |
351 | ||
f8e2472f MR |
352 | /** |
353 | * ixgbe_read_reg - Read from device register | |
354 | * @hw: hw specific details | |
355 | * @reg: offset of register to read | |
356 | * | |
357 | * Returns : value read or IXGBE_FAILED_READ_REG if removed | |
358 | * | |
359 | * This function is used to read device registers. It checks for device | |
360 | * removal by confirming any read that returns all ones by checking the | |
361 | * status register value for all ones. This function avoids reading from | |
362 | * the hardware if a removal was previously detected in which case it | |
363 | * returns IXGBE_FAILED_READ_REG (all ones). | |
364 | */ | |
365 | u32 ixgbe_read_reg(struct ixgbe_hw *hw, u32 reg) | |
366 | { | |
367 | u8 __iomem *reg_addr = ACCESS_ONCE(hw->hw_addr); | |
368 | u32 value; | |
369 | ||
370 | if (ixgbe_removed(reg_addr)) | |
371 | return IXGBE_FAILED_READ_REG; | |
372 | value = readl(reg_addr + reg); | |
373 | if (unlikely(value == IXGBE_FAILED_READ_REG)) | |
374 | ixgbe_check_remove(hw, reg); | |
375 | return value; | |
376 | } | |
377 | ||
14438464 MR |
378 | static bool ixgbe_check_cfg_remove(struct ixgbe_hw *hw, struct pci_dev *pdev) |
379 | { | |
380 | u16 value; | |
381 | ||
382 | pci_read_config_word(pdev, PCI_VENDOR_ID, &value); | |
383 | if (value == IXGBE_FAILED_READ_CFG_WORD) { | |
384 | ixgbe_remove_adapter(hw); | |
385 | return true; | |
386 | } | |
387 | return false; | |
388 | } | |
389 | ||
390 | u16 ixgbe_read_pci_cfg_word(struct ixgbe_hw *hw, u32 reg) | |
391 | { | |
392 | struct ixgbe_adapter *adapter = hw->back; | |
393 | u16 value; | |
394 | ||
395 | if (ixgbe_removed(hw->hw_addr)) | |
396 | return IXGBE_FAILED_READ_CFG_WORD; | |
397 | pci_read_config_word(adapter->pdev, reg, &value); | |
398 | if (value == IXGBE_FAILED_READ_CFG_WORD && | |
399 | ixgbe_check_cfg_remove(hw, adapter->pdev)) | |
400 | return IXGBE_FAILED_READ_CFG_WORD; | |
401 | return value; | |
402 | } | |
403 | ||
404 | #ifdef CONFIG_PCI_IOV | |
405 | static u32 ixgbe_read_pci_cfg_dword(struct ixgbe_hw *hw, u32 reg) | |
406 | { | |
407 | struct ixgbe_adapter *adapter = hw->back; | |
408 | u32 value; | |
409 | ||
410 | if (ixgbe_removed(hw->hw_addr)) | |
411 | return IXGBE_FAILED_READ_CFG_DWORD; | |
412 | pci_read_config_dword(adapter->pdev, reg, &value); | |
413 | if (value == IXGBE_FAILED_READ_CFG_DWORD && | |
414 | ixgbe_check_cfg_remove(hw, adapter->pdev)) | |
415 | return IXGBE_FAILED_READ_CFG_DWORD; | |
416 | return value; | |
417 | } | |
418 | #endif /* CONFIG_PCI_IOV */ | |
419 | ||
ed19231c JK |
420 | void ixgbe_write_pci_cfg_word(struct ixgbe_hw *hw, u32 reg, u16 value) |
421 | { | |
422 | struct ixgbe_adapter *adapter = hw->back; | |
423 | ||
424 | if (ixgbe_removed(hw->hw_addr)) | |
425 | return; | |
426 | pci_write_config_word(adapter->pdev, reg, value); | |
427 | } | |
428 | ||
7086400d AD |
429 | static void ixgbe_service_event_complete(struct ixgbe_adapter *adapter) |
430 | { | |
431 | BUG_ON(!test_bit(__IXGBE_SERVICE_SCHED, &adapter->state)); | |
432 | ||
52f33af8 | 433 | /* flush memory to make sure state is correct before next watchdog */ |
4e857c58 | 434 | smp_mb__before_atomic(); |
7086400d AD |
435 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); |
436 | } | |
437 | ||
dcd79aeb TI |
438 | struct ixgbe_reg_info { |
439 | u32 ofs; | |
440 | char *name; | |
441 | }; | |
442 | ||
443 | static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = { | |
444 | ||
445 | /* General Registers */ | |
446 | {IXGBE_CTRL, "CTRL"}, | |
447 | {IXGBE_STATUS, "STATUS"}, | |
448 | {IXGBE_CTRL_EXT, "CTRL_EXT"}, | |
449 | ||
450 | /* Interrupt Registers */ | |
451 | {IXGBE_EICR, "EICR"}, | |
452 | ||
453 | /* RX Registers */ | |
454 | {IXGBE_SRRCTL(0), "SRRCTL"}, | |
455 | {IXGBE_DCA_RXCTRL(0), "DRXCTL"}, | |
456 | {IXGBE_RDLEN(0), "RDLEN"}, | |
457 | {IXGBE_RDH(0), "RDH"}, | |
458 | {IXGBE_RDT(0), "RDT"}, | |
459 | {IXGBE_RXDCTL(0), "RXDCTL"}, | |
460 | {IXGBE_RDBAL(0), "RDBAL"}, | |
461 | {IXGBE_RDBAH(0), "RDBAH"}, | |
462 | ||
463 | /* TX Registers */ | |
464 | {IXGBE_TDBAL(0), "TDBAL"}, | |
465 | {IXGBE_TDBAH(0), "TDBAH"}, | |
466 | {IXGBE_TDLEN(0), "TDLEN"}, | |
467 | {IXGBE_TDH(0), "TDH"}, | |
468 | {IXGBE_TDT(0), "TDT"}, | |
469 | {IXGBE_TXDCTL(0), "TXDCTL"}, | |
470 | ||
471 | /* List Terminator */ | |
ca8dfe25 | 472 | { .name = NULL } |
dcd79aeb TI |
473 | }; |
474 | ||
475 | ||
476 | /* | |
477 | * ixgbe_regdump - register printout routine | |
478 | */ | |
479 | static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo) | |
480 | { | |
481 | int i = 0, j = 0; | |
482 | char rname[16]; | |
483 | u32 regs[64]; | |
484 | ||
485 | switch (reginfo->ofs) { | |
486 | case IXGBE_SRRCTL(0): | |
487 | for (i = 0; i < 64; i++) | |
488 | regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i)); | |
489 | break; | |
490 | case IXGBE_DCA_RXCTRL(0): | |
491 | for (i = 0; i < 64; i++) | |
492 | regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); | |
493 | break; | |
494 | case IXGBE_RDLEN(0): | |
495 | for (i = 0; i < 64; i++) | |
496 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i)); | |
497 | break; | |
498 | case IXGBE_RDH(0): | |
499 | for (i = 0; i < 64; i++) | |
500 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i)); | |
501 | break; | |
502 | case IXGBE_RDT(0): | |
503 | for (i = 0; i < 64; i++) | |
504 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i)); | |
505 | break; | |
506 | case IXGBE_RXDCTL(0): | |
507 | for (i = 0; i < 64; i++) | |
508 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); | |
509 | break; | |
510 | case IXGBE_RDBAL(0): | |
511 | for (i = 0; i < 64; i++) | |
512 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i)); | |
513 | break; | |
514 | case IXGBE_RDBAH(0): | |
515 | for (i = 0; i < 64; i++) | |
516 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i)); | |
517 | break; | |
518 | case IXGBE_TDBAL(0): | |
519 | for (i = 0; i < 64; i++) | |
520 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i)); | |
521 | break; | |
522 | case IXGBE_TDBAH(0): | |
523 | for (i = 0; i < 64; i++) | |
524 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i)); | |
525 | break; | |
526 | case IXGBE_TDLEN(0): | |
527 | for (i = 0; i < 64; i++) | |
528 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i)); | |
529 | break; | |
530 | case IXGBE_TDH(0): | |
531 | for (i = 0; i < 64; i++) | |
532 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i)); | |
533 | break; | |
534 | case IXGBE_TDT(0): | |
535 | for (i = 0; i < 64; i++) | |
536 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i)); | |
537 | break; | |
538 | case IXGBE_TXDCTL(0): | |
539 | for (i = 0; i < 64; i++) | |
540 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); | |
541 | break; | |
542 | default: | |
c7689578 | 543 | pr_info("%-15s %08x\n", reginfo->name, |
dcd79aeb TI |
544 | IXGBE_READ_REG(hw, reginfo->ofs)); |
545 | return; | |
546 | } | |
547 | ||
548 | for (i = 0; i < 8; i++) { | |
549 | snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7); | |
c7689578 | 550 | pr_err("%-15s", rname); |
dcd79aeb | 551 | for (j = 0; j < 8; j++) |
c7689578 JP |
552 | pr_cont(" %08x", regs[i*8+j]); |
553 | pr_cont("\n"); | |
dcd79aeb TI |
554 | } |
555 | ||
556 | } | |
557 | ||
558 | /* | |
559 | * ixgbe_dump - Print registers, tx-rings and rx-rings | |
560 | */ | |
561 | static void ixgbe_dump(struct ixgbe_adapter *adapter) | |
562 | { | |
563 | struct net_device *netdev = adapter->netdev; | |
564 | struct ixgbe_hw *hw = &adapter->hw; | |
565 | struct ixgbe_reg_info *reginfo; | |
566 | int n = 0; | |
567 | struct ixgbe_ring *tx_ring; | |
729739b7 | 568 | struct ixgbe_tx_buffer *tx_buffer; |
dcd79aeb TI |
569 | union ixgbe_adv_tx_desc *tx_desc; |
570 | struct my_u0 { u64 a; u64 b; } *u0; | |
571 | struct ixgbe_ring *rx_ring; | |
572 | union ixgbe_adv_rx_desc *rx_desc; | |
573 | struct ixgbe_rx_buffer *rx_buffer_info; | |
574 | u32 staterr; | |
575 | int i = 0; | |
576 | ||
577 | if (!netif_msg_hw(adapter)) | |
578 | return; | |
579 | ||
580 | /* Print netdevice Info */ | |
581 | if (netdev) { | |
582 | dev_info(&adapter->pdev->dev, "Net device Info\n"); | |
c7689578 | 583 | pr_info("Device Name state " |
dcd79aeb | 584 | "trans_start last_rx\n"); |
c7689578 JP |
585 | pr_info("%-15s %016lX %016lX %016lX\n", |
586 | netdev->name, | |
587 | netdev->state, | |
588 | netdev->trans_start, | |
589 | netdev->last_rx); | |
dcd79aeb TI |
590 | } |
591 | ||
592 | /* Print Registers */ | |
593 | dev_info(&adapter->pdev->dev, "Register Dump\n"); | |
c7689578 | 594 | pr_info(" Register Name Value\n"); |
dcd79aeb TI |
595 | for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl; |
596 | reginfo->name; reginfo++) { | |
597 | ixgbe_regdump(hw, reginfo); | |
598 | } | |
599 | ||
600 | /* Print TX Ring Summary */ | |
601 | if (!netdev || !netif_running(netdev)) | |
e90dd264 | 602 | return; |
dcd79aeb TI |
603 | |
604 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); | |
8ad88e37 JH |
605 | pr_info(" %s %s %s %s\n", |
606 | "Queue [NTU] [NTC] [bi(ntc)->dma ]", | |
607 | "leng", "ntw", "timestamp"); | |
dcd79aeb TI |
608 | for (n = 0; n < adapter->num_tx_queues; n++) { |
609 | tx_ring = adapter->tx_ring[n]; | |
729739b7 | 610 | tx_buffer = &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; |
8ad88e37 | 611 | pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n", |
dcd79aeb | 612 | n, tx_ring->next_to_use, tx_ring->next_to_clean, |
729739b7 AD |
613 | (u64)dma_unmap_addr(tx_buffer, dma), |
614 | dma_unmap_len(tx_buffer, len), | |
615 | tx_buffer->next_to_watch, | |
616 | (u64)tx_buffer->time_stamp); | |
dcd79aeb TI |
617 | } |
618 | ||
619 | /* Print TX Rings */ | |
620 | if (!netif_msg_tx_done(adapter)) | |
621 | goto rx_ring_summary; | |
622 | ||
623 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); | |
624 | ||
625 | /* Transmit Descriptor Formats | |
626 | * | |
39ac868a | 627 | * 82598 Advanced Transmit Descriptor |
dcd79aeb TI |
628 | * +--------------------------------------------------------------+ |
629 | * 0 | Buffer Address [63:0] | | |
630 | * +--------------------------------------------------------------+ | |
39ac868a | 631 | * 8 | PAYLEN | POPTS | IDX | STA | DCMD |DTYP | RSV | DTALEN | |
dcd79aeb TI |
632 | * +--------------------------------------------------------------+ |
633 | * 63 46 45 40 39 36 35 32 31 24 23 20 19 0 | |
39ac868a JH |
634 | * |
635 | * 82598 Advanced Transmit Descriptor (Write-Back Format) | |
636 | * +--------------------------------------------------------------+ | |
637 | * 0 | RSV [63:0] | | |
638 | * +--------------------------------------------------------------+ | |
639 | * 8 | RSV | STA | NXTSEQ | | |
640 | * +--------------------------------------------------------------+ | |
641 | * 63 36 35 32 31 0 | |
642 | * | |
643 | * 82599+ Advanced Transmit Descriptor | |
644 | * +--------------------------------------------------------------+ | |
645 | * 0 | Buffer Address [63:0] | | |
646 | * +--------------------------------------------------------------+ | |
647 | * 8 |PAYLEN |POPTS|CC|IDX |STA |DCMD |DTYP |MAC |RSV |DTALEN | | |
648 | * +--------------------------------------------------------------+ | |
649 | * 63 46 45 40 39 38 36 35 32 31 24 23 20 19 18 17 16 15 0 | |
650 | * | |
651 | * 82599+ Advanced Transmit Descriptor (Write-Back Format) | |
652 | * +--------------------------------------------------------------+ | |
653 | * 0 | RSV [63:0] | | |
654 | * +--------------------------------------------------------------+ | |
655 | * 8 | RSV | STA | RSV | | |
656 | * +--------------------------------------------------------------+ | |
657 | * 63 36 35 32 31 0 | |
dcd79aeb TI |
658 | */ |
659 | ||
660 | for (n = 0; n < adapter->num_tx_queues; n++) { | |
661 | tx_ring = adapter->tx_ring[n]; | |
c7689578 JP |
662 | pr_info("------------------------------------\n"); |
663 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); | |
664 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
665 | pr_info("%s%s %s %s %s %s\n", |
666 | "T [desc] [address 63:0 ] ", | |
667 | "[PlPOIdStDDt Ln] [bi->dma ] ", | |
668 | "leng", "ntw", "timestamp", "bi->skb"); | |
dcd79aeb TI |
669 | |
670 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { | |
e4f74028 | 671 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 672 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
dcd79aeb | 673 | u0 = (struct my_u0 *)tx_desc; |
8ad88e37 JH |
674 | if (dma_unmap_len(tx_buffer, len) > 0) { |
675 | pr_info("T [0x%03X] %016llX %016llX %016llX %08X %p %016llX %p", | |
676 | i, | |
677 | le64_to_cpu(u0->a), | |
678 | le64_to_cpu(u0->b), | |
679 | (u64)dma_unmap_addr(tx_buffer, dma), | |
729739b7 | 680 | dma_unmap_len(tx_buffer, len), |
8ad88e37 JH |
681 | tx_buffer->next_to_watch, |
682 | (u64)tx_buffer->time_stamp, | |
683 | tx_buffer->skb); | |
684 | if (i == tx_ring->next_to_use && | |
685 | i == tx_ring->next_to_clean) | |
686 | pr_cont(" NTC/U\n"); | |
687 | else if (i == tx_ring->next_to_use) | |
688 | pr_cont(" NTU\n"); | |
689 | else if (i == tx_ring->next_to_clean) | |
690 | pr_cont(" NTC\n"); | |
691 | else | |
692 | pr_cont("\n"); | |
693 | ||
694 | if (netif_msg_pktdata(adapter) && | |
695 | tx_buffer->skb) | |
696 | print_hex_dump(KERN_INFO, "", | |
697 | DUMP_PREFIX_ADDRESS, 16, 1, | |
698 | tx_buffer->skb->data, | |
699 | dma_unmap_len(tx_buffer, len), | |
700 | true); | |
701 | } | |
dcd79aeb TI |
702 | } |
703 | } | |
704 | ||
705 | /* Print RX Rings Summary */ | |
706 | rx_ring_summary: | |
707 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); | |
c7689578 | 708 | pr_info("Queue [NTU] [NTC]\n"); |
dcd79aeb TI |
709 | for (n = 0; n < adapter->num_rx_queues; n++) { |
710 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
711 | pr_info("%5d %5X %5X\n", |
712 | n, rx_ring->next_to_use, rx_ring->next_to_clean); | |
dcd79aeb TI |
713 | } |
714 | ||
715 | /* Print RX Rings */ | |
716 | if (!netif_msg_rx_status(adapter)) | |
e90dd264 | 717 | return; |
dcd79aeb TI |
718 | |
719 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); | |
720 | ||
39ac868a JH |
721 | /* Receive Descriptor Formats |
722 | * | |
723 | * 82598 Advanced Receive Descriptor (Read) Format | |
dcd79aeb TI |
724 | * 63 1 0 |
725 | * +-----------------------------------------------------+ | |
726 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
727 | * +----------------------------------------------+------+ | |
728 | * 8 | Header Buffer Address [63:1] | DD | | |
729 | * +-----------------------------------------------------+ | |
730 | * | |
731 | * | |
39ac868a | 732 | * 82598 Advanced Receive Descriptor (Write-Back) Format |
dcd79aeb TI |
733 | * |
734 | * 63 48 47 32 31 30 21 20 16 15 4 3 0 | |
735 | * +------------------------------------------------------+ | |
39ac868a JH |
736 | * 0 | RSS Hash / |SPH| HDR_LEN | RSV |Packet| RSS | |
737 | * | Packet | IP | | | | Type | Type | | |
738 | * | Checksum | Ident | | | | | | | |
dcd79aeb TI |
739 | * +------------------------------------------------------+ |
740 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | | |
741 | * +------------------------------------------------------+ | |
742 | * 63 48 47 32 31 20 19 0 | |
39ac868a JH |
743 | * |
744 | * 82599+ Advanced Receive Descriptor (Read) Format | |
745 | * 63 1 0 | |
746 | * +-----------------------------------------------------+ | |
747 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
748 | * +----------------------------------------------+------+ | |
749 | * 8 | Header Buffer Address [63:1] | DD | | |
750 | * +-----------------------------------------------------+ | |
751 | * | |
752 | * | |
753 | * 82599+ Advanced Receive Descriptor (Write-Back) Format | |
754 | * | |
755 | * 63 48 47 32 31 30 21 20 17 16 4 3 0 | |
756 | * +------------------------------------------------------+ | |
757 | * 0 |RSS / Frag Checksum|SPH| HDR_LEN |RSC- |Packet| RSS | | |
758 | * |/ RTT / PCoE_PARAM | | | CNT | Type | Type | | |
759 | * |/ Flow Dir Flt ID | | | | | | | |
760 | * +------------------------------------------------------+ | |
761 | * 8 | VLAN Tag | Length |Extended Error| Xtnd Status/NEXTP | | |
762 | * +------------------------------------------------------+ | |
763 | * 63 48 47 32 31 20 19 0 | |
dcd79aeb | 764 | */ |
39ac868a | 765 | |
dcd79aeb TI |
766 | for (n = 0; n < adapter->num_rx_queues; n++) { |
767 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
768 | pr_info("------------------------------------\n"); |
769 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); | |
770 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
771 | pr_info("%s%s%s", |
772 | "R [desc] [ PktBuf A0] ", | |
773 | "[ HeadBuf DD] [bi->dma ] [bi->skb ] ", | |
dcd79aeb | 774 | "<-- Adv Rx Read format\n"); |
8ad88e37 JH |
775 | pr_info("%s%s%s", |
776 | "RWB[desc] [PcsmIpSHl PtRs] ", | |
777 | "[vl er S cks ln] ---------------- [bi->skb ] ", | |
dcd79aeb TI |
778 | "<-- Adv Rx Write-Back format\n"); |
779 | ||
780 | for (i = 0; i < rx_ring->count; i++) { | |
781 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
e4f74028 | 782 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
dcd79aeb TI |
783 | u0 = (struct my_u0 *)rx_desc; |
784 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
785 | if (staterr & IXGBE_RXD_STAT_DD) { | |
786 | /* Descriptor Done */ | |
c7689578 | 787 | pr_info("RWB[0x%03X] %016llX " |
dcd79aeb TI |
788 | "%016llX ---------------- %p", i, |
789 | le64_to_cpu(u0->a), | |
790 | le64_to_cpu(u0->b), | |
791 | rx_buffer_info->skb); | |
792 | } else { | |
c7689578 | 793 | pr_info("R [0x%03X] %016llX " |
dcd79aeb TI |
794 | "%016llX %016llX %p", i, |
795 | le64_to_cpu(u0->a), | |
796 | le64_to_cpu(u0->b), | |
797 | (u64)rx_buffer_info->dma, | |
798 | rx_buffer_info->skb); | |
799 | ||
9c50c035 ET |
800 | if (netif_msg_pktdata(adapter) && |
801 | rx_buffer_info->dma) { | |
dcd79aeb TI |
802 | print_hex_dump(KERN_INFO, "", |
803 | DUMP_PREFIX_ADDRESS, 16, 1, | |
9c50c035 ET |
804 | page_address(rx_buffer_info->page) + |
805 | rx_buffer_info->page_offset, | |
f800326d | 806 | ixgbe_rx_bufsz(rx_ring), true); |
dcd79aeb TI |
807 | } |
808 | } | |
809 | ||
810 | if (i == rx_ring->next_to_use) | |
c7689578 | 811 | pr_cont(" NTU\n"); |
dcd79aeb | 812 | else if (i == rx_ring->next_to_clean) |
c7689578 | 813 | pr_cont(" NTC\n"); |
dcd79aeb | 814 | else |
c7689578 | 815 | pr_cont("\n"); |
dcd79aeb TI |
816 | |
817 | } | |
818 | } | |
dcd79aeb TI |
819 | } |
820 | ||
5eba3699 AV |
821 | static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) |
822 | { | |
823 | u32 ctrl_ext; | |
824 | ||
825 | /* Let firmware take over control of h/w */ | |
826 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
827 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 828 | ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 AV |
829 | } |
830 | ||
831 | static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) | |
832 | { | |
833 | u32 ctrl_ext; | |
834 | ||
835 | /* Let firmware know the driver has taken over */ | |
836 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
837 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 838 | ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 | 839 | } |
9a799d71 | 840 | |
49ce9c2c | 841 | /** |
e8e26350 PW |
842 | * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors |
843 | * @adapter: pointer to adapter struct | |
844 | * @direction: 0 for Rx, 1 for Tx, -1 for other causes | |
845 | * @queue: queue to map the corresponding interrupt to | |
846 | * @msix_vector: the vector to map to the corresponding queue | |
847 | * | |
848 | */ | |
849 | static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, | |
e8e9f696 | 850 | u8 queue, u8 msix_vector) |
9a799d71 AK |
851 | { |
852 | u32 ivar, index; | |
e8e26350 PW |
853 | struct ixgbe_hw *hw = &adapter->hw; |
854 | switch (hw->mac.type) { | |
855 | case ixgbe_mac_82598EB: | |
856 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
857 | if (direction == -1) | |
858 | direction = 0; | |
859 | index = (((direction * 64) + queue) >> 2) & 0x1F; | |
860 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); | |
861 | ivar &= ~(0xFF << (8 * (queue & 0x3))); | |
862 | ivar |= (msix_vector << (8 * (queue & 0x3))); | |
863 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); | |
864 | break; | |
865 | case ixgbe_mac_82599EB: | |
b93a2226 | 866 | case ixgbe_mac_X540: |
9a75a1ac DS |
867 | case ixgbe_mac_X550: |
868 | case ixgbe_mac_X550EM_x: | |
e8e26350 PW |
869 | if (direction == -1) { |
870 | /* other causes */ | |
871 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
872 | index = ((queue & 1) * 8); | |
873 | ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); | |
874 | ivar &= ~(0xFF << index); | |
875 | ivar |= (msix_vector << index); | |
876 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); | |
877 | break; | |
878 | } else { | |
879 | /* tx or rx causes */ | |
880 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
881 | index = ((16 * (queue & 1)) + (8 * direction)); | |
882 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); | |
883 | ivar &= ~(0xFF << index); | |
884 | ivar |= (msix_vector << index); | |
885 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); | |
886 | break; | |
887 | } | |
888 | default: | |
889 | break; | |
890 | } | |
9a799d71 AK |
891 | } |
892 | ||
fe49f04a | 893 | static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, |
e8e9f696 | 894 | u64 qmask) |
fe49f04a AD |
895 | { |
896 | u32 mask; | |
897 | ||
bd508178 AD |
898 | switch (adapter->hw.mac.type) { |
899 | case ixgbe_mac_82598EB: | |
fe49f04a AD |
900 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
901 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask); | |
bd508178 AD |
902 | break; |
903 | case ixgbe_mac_82599EB: | |
b93a2226 | 904 | case ixgbe_mac_X540: |
9a75a1ac DS |
905 | case ixgbe_mac_X550: |
906 | case ixgbe_mac_X550EM_x: | |
fe49f04a AD |
907 | mask = (qmask & 0xFFFFFFFF); |
908 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask); | |
909 | mask = (qmask >> 32); | |
910 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask); | |
bd508178 AD |
911 | break; |
912 | default: | |
913 | break; | |
fe49f04a AD |
914 | } |
915 | } | |
916 | ||
729739b7 AD |
917 | void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *ring, |
918 | struct ixgbe_tx_buffer *tx_buffer) | |
9a799d71 | 919 | { |
729739b7 AD |
920 | if (tx_buffer->skb) { |
921 | dev_kfree_skb_any(tx_buffer->skb); | |
922 | if (dma_unmap_len(tx_buffer, len)) | |
d3d00239 | 923 | dma_unmap_single(ring->dev, |
729739b7 AD |
924 | dma_unmap_addr(tx_buffer, dma), |
925 | dma_unmap_len(tx_buffer, len), | |
926 | DMA_TO_DEVICE); | |
927 | } else if (dma_unmap_len(tx_buffer, len)) { | |
928 | dma_unmap_page(ring->dev, | |
929 | dma_unmap_addr(tx_buffer, dma), | |
930 | dma_unmap_len(tx_buffer, len), | |
931 | DMA_TO_DEVICE); | |
e5a43549 | 932 | } |
729739b7 AD |
933 | tx_buffer->next_to_watch = NULL; |
934 | tx_buffer->skb = NULL; | |
935 | dma_unmap_len_set(tx_buffer, len, 0); | |
936 | /* tx_buffer must be completely set up in the transmit path */ | |
9a799d71 AK |
937 | } |
938 | ||
943561d3 | 939 | static void ixgbe_update_xoff_rx_lfc(struct ixgbe_adapter *adapter) |
c84d324c JF |
940 | { |
941 | struct ixgbe_hw *hw = &adapter->hw; | |
942 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
c84d324c | 943 | int i; |
943561d3 | 944 | u32 data; |
c84d324c | 945 | |
943561d3 AD |
946 | if ((hw->fc.current_mode != ixgbe_fc_full) && |
947 | (hw->fc.current_mode != ixgbe_fc_rx_pause)) | |
948 | return; | |
c84d324c | 949 | |
943561d3 AD |
950 | switch (hw->mac.type) { |
951 | case ixgbe_mac_82598EB: | |
952 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); | |
953 | break; | |
954 | default: | |
955 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); | |
956 | } | |
957 | hwstats->lxoffrxc += data; | |
c84d324c | 958 | |
943561d3 AD |
959 | /* refill credits (no tx hang) if we received xoff */ |
960 | if (!data) | |
c84d324c | 961 | return; |
943561d3 AD |
962 | |
963 | for (i = 0; i < adapter->num_tx_queues; i++) | |
964 | clear_bit(__IXGBE_HANG_CHECK_ARMED, | |
965 | &adapter->tx_ring[i]->state); | |
966 | } | |
967 | ||
968 | static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter) | |
969 | { | |
970 | struct ixgbe_hw *hw = &adapter->hw; | |
971 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
972 | u32 xoff[8] = {0}; | |
2afaa00d | 973 | u8 tc; |
943561d3 AD |
974 | int i; |
975 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
976 | ||
977 | if (adapter->ixgbe_ieee_pfc) | |
978 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
979 | ||
980 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED) || !pfc_en) { | |
981 | ixgbe_update_xoff_rx_lfc(adapter); | |
c84d324c | 982 | return; |
943561d3 | 983 | } |
c84d324c JF |
984 | |
985 | /* update stats for each tc, only valid with PFC enabled */ | |
986 | for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) { | |
2afaa00d PN |
987 | u32 pxoffrxc; |
988 | ||
c84d324c JF |
989 | switch (hw->mac.type) { |
990 | case ixgbe_mac_82598EB: | |
2afaa00d | 991 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); |
bd508178 | 992 | break; |
c84d324c | 993 | default: |
2afaa00d | 994 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); |
26f23d82 | 995 | } |
2afaa00d PN |
996 | hwstats->pxoffrxc[i] += pxoffrxc; |
997 | /* Get the TC for given UP */ | |
998 | tc = netdev_get_prio_tc_map(adapter->netdev, i); | |
999 | xoff[tc] += pxoffrxc; | |
c84d324c JF |
1000 | } |
1001 | ||
1002 | /* disarm tx queues that have received xoff frames */ | |
1003 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
1004 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
c84d324c | 1005 | |
2afaa00d | 1006 | tc = tx_ring->dcb_tc; |
c84d324c JF |
1007 | if (xoff[tc]) |
1008 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
26f23d82 | 1009 | } |
26f23d82 YZ |
1010 | } |
1011 | ||
c84d324c | 1012 | static u64 ixgbe_get_tx_completed(struct ixgbe_ring *ring) |
9a799d71 | 1013 | { |
7d7ce682 | 1014 | return ring->stats.packets; |
c84d324c JF |
1015 | } |
1016 | ||
1017 | static u64 ixgbe_get_tx_pending(struct ixgbe_ring *ring) | |
1018 | { | |
2a47fa45 JF |
1019 | struct ixgbe_adapter *adapter; |
1020 | struct ixgbe_hw *hw; | |
1021 | u32 head, tail; | |
1022 | ||
1023 | if (ring->l2_accel_priv) | |
1024 | adapter = ring->l2_accel_priv->real_adapter; | |
1025 | else | |
1026 | adapter = netdev_priv(ring->netdev); | |
e01c31a5 | 1027 | |
2a47fa45 JF |
1028 | hw = &adapter->hw; |
1029 | head = IXGBE_READ_REG(hw, IXGBE_TDH(ring->reg_idx)); | |
1030 | tail = IXGBE_READ_REG(hw, IXGBE_TDT(ring->reg_idx)); | |
c84d324c JF |
1031 | |
1032 | if (head != tail) | |
1033 | return (head < tail) ? | |
1034 | tail - head : (tail + ring->count - head); | |
1035 | ||
1036 | return 0; | |
1037 | } | |
1038 | ||
1039 | static inline bool ixgbe_check_tx_hang(struct ixgbe_ring *tx_ring) | |
1040 | { | |
1041 | u32 tx_done = ixgbe_get_tx_completed(tx_ring); | |
1042 | u32 tx_done_old = tx_ring->tx_stats.tx_done_old; | |
1043 | u32 tx_pending = ixgbe_get_tx_pending(tx_ring); | |
c84d324c | 1044 | |
7d637bcc | 1045 | clear_check_for_tx_hang(tx_ring); |
c84d324c JF |
1046 | |
1047 | /* | |
1048 | * Check for a hung queue, but be thorough. This verifies | |
1049 | * that a transmit has been completed since the previous | |
1050 | * check AND there is at least one packet pending. The | |
1051 | * ARMED bit is set to indicate a potential hang. The | |
1052 | * bit is cleared if a pause frame is received to remove | |
1053 | * false hang detection due to PFC or 802.3x frames. By | |
1054 | * requiring this to fail twice we avoid races with | |
1055 | * pfc clearing the ARMED bit and conditions where we | |
1056 | * run the check_tx_hang logic with a transmit completion | |
1057 | * pending but without time to complete it yet. | |
1058 | */ | |
e90dd264 | 1059 | if (tx_done_old == tx_done && tx_pending) |
c84d324c | 1060 | /* make sure it is true for two checks in a row */ |
e90dd264 MR |
1061 | return test_and_set_bit(__IXGBE_HANG_CHECK_ARMED, |
1062 | &tx_ring->state); | |
1063 | /* update completed stats and continue */ | |
1064 | tx_ring->tx_stats.tx_done_old = tx_done; | |
1065 | /* reset the countdown */ | |
1066 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
9a799d71 | 1067 | |
e90dd264 | 1068 | return false; |
9a799d71 AK |
1069 | } |
1070 | ||
c83c6cbd AD |
1071 | /** |
1072 | * ixgbe_tx_timeout_reset - initiate reset due to Tx timeout | |
1073 | * @adapter: driver private struct | |
1074 | **/ | |
1075 | static void ixgbe_tx_timeout_reset(struct ixgbe_adapter *adapter) | |
1076 | { | |
1077 | ||
1078 | /* Do the reset outside of interrupt context */ | |
1079 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1080 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
12ff3f3b | 1081 | e_warn(drv, "initiating reset due to tx timeout\n"); |
c83c6cbd AD |
1082 | ixgbe_service_event_schedule(adapter); |
1083 | } | |
1084 | } | |
e01c31a5 | 1085 | |
9a799d71 AK |
1086 | /** |
1087 | * ixgbe_clean_tx_irq - Reclaim resources after transmit completes | |
fe49f04a | 1088 | * @q_vector: structure containing interrupt and ring information |
e01c31a5 | 1089 | * @tx_ring: tx ring to clean |
9a799d71 | 1090 | **/ |
fe49f04a | 1091 | static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 1092 | struct ixgbe_ring *tx_ring) |
9a799d71 | 1093 | { |
fe49f04a | 1094 | struct ixgbe_adapter *adapter = q_vector->adapter; |
d3d00239 AD |
1095 | struct ixgbe_tx_buffer *tx_buffer; |
1096 | union ixgbe_adv_tx_desc *tx_desc; | |
e01c31a5 | 1097 | unsigned int total_bytes = 0, total_packets = 0; |
59224555 | 1098 | unsigned int budget = q_vector->tx.work_limit; |
729739b7 AD |
1099 | unsigned int i = tx_ring->next_to_clean; |
1100 | ||
1101 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
1102 | return true; | |
9a799d71 | 1103 | |
d3d00239 | 1104 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
e4f74028 | 1105 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 1106 | i -= tx_ring->count; |
12207e49 | 1107 | |
729739b7 | 1108 | do { |
d3d00239 AD |
1109 | union ixgbe_adv_tx_desc *eop_desc = tx_buffer->next_to_watch; |
1110 | ||
1111 | /* if next_to_watch is not set then there is no work pending */ | |
1112 | if (!eop_desc) | |
1113 | break; | |
1114 | ||
7f83a9e6 | 1115 | /* prevent any other reads prior to eop_desc */ |
7e63bf49 | 1116 | read_barrier_depends(); |
7f83a9e6 | 1117 | |
d3d00239 AD |
1118 | /* if DD is not set pending work has not been completed */ |
1119 | if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD))) | |
1120 | break; | |
8ad494b0 | 1121 | |
d3d00239 AD |
1122 | /* clear next_to_watch to prevent false hangs */ |
1123 | tx_buffer->next_to_watch = NULL; | |
8ad494b0 | 1124 | |
091a6246 AD |
1125 | /* update the statistics for this packet */ |
1126 | total_bytes += tx_buffer->bytecount; | |
1127 | total_packets += tx_buffer->gso_segs; | |
1128 | ||
fd0db0ed | 1129 | /* free the skb */ |
fe1f2a97 | 1130 | dev_consume_skb_any(tx_buffer->skb); |
fd0db0ed | 1131 | |
729739b7 AD |
1132 | /* unmap skb header data */ |
1133 | dma_unmap_single(tx_ring->dev, | |
1134 | dma_unmap_addr(tx_buffer, dma), | |
1135 | dma_unmap_len(tx_buffer, len), | |
1136 | DMA_TO_DEVICE); | |
1137 | ||
fd0db0ed AD |
1138 | /* clear tx_buffer data */ |
1139 | tx_buffer->skb = NULL; | |
729739b7 | 1140 | dma_unmap_len_set(tx_buffer, len, 0); |
fd0db0ed | 1141 | |
729739b7 AD |
1142 | /* unmap remaining buffers */ |
1143 | while (tx_desc != eop_desc) { | |
d3d00239 AD |
1144 | tx_buffer++; |
1145 | tx_desc++; | |
8ad494b0 | 1146 | i++; |
729739b7 AD |
1147 | if (unlikely(!i)) { |
1148 | i -= tx_ring->count; | |
d3d00239 | 1149 | tx_buffer = tx_ring->tx_buffer_info; |
e4f74028 | 1150 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
e092be60 | 1151 | } |
e01c31a5 | 1152 | |
729739b7 AD |
1153 | /* unmap any remaining paged data */ |
1154 | if (dma_unmap_len(tx_buffer, len)) { | |
1155 | dma_unmap_page(tx_ring->dev, | |
1156 | dma_unmap_addr(tx_buffer, dma), | |
1157 | dma_unmap_len(tx_buffer, len), | |
1158 | DMA_TO_DEVICE); | |
1159 | dma_unmap_len_set(tx_buffer, len, 0); | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | /* move us one more past the eop_desc for start of next pkt */ | |
1164 | tx_buffer++; | |
1165 | tx_desc++; | |
1166 | i++; | |
1167 | if (unlikely(!i)) { | |
1168 | i -= tx_ring->count; | |
1169 | tx_buffer = tx_ring->tx_buffer_info; | |
1170 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
1171 | } | |
1172 | ||
1173 | /* issue prefetch for next Tx descriptor */ | |
1174 | prefetch(tx_desc); | |
12207e49 | 1175 | |
729739b7 AD |
1176 | /* update budget accounting */ |
1177 | budget--; | |
1178 | } while (likely(budget)); | |
1179 | ||
1180 | i += tx_ring->count; | |
9a799d71 | 1181 | tx_ring->next_to_clean = i; |
d3d00239 | 1182 | u64_stats_update_begin(&tx_ring->syncp); |
b953799e | 1183 | tx_ring->stats.bytes += total_bytes; |
bd198058 | 1184 | tx_ring->stats.packets += total_packets; |
d3d00239 | 1185 | u64_stats_update_end(&tx_ring->syncp); |
bd198058 AD |
1186 | q_vector->tx.total_bytes += total_bytes; |
1187 | q_vector->tx.total_packets += total_packets; | |
b953799e | 1188 | |
c84d324c JF |
1189 | if (check_for_tx_hang(tx_ring) && ixgbe_check_tx_hang(tx_ring)) { |
1190 | /* schedule immediate reset if we believe we hung */ | |
1191 | struct ixgbe_hw *hw = &adapter->hw; | |
c84d324c JF |
1192 | e_err(drv, "Detected Tx Unit Hang\n" |
1193 | " Tx Queue <%d>\n" | |
1194 | " TDH, TDT <%x>, <%x>\n" | |
1195 | " next_to_use <%x>\n" | |
1196 | " next_to_clean <%x>\n" | |
1197 | "tx_buffer_info[next_to_clean]\n" | |
1198 | " time_stamp <%lx>\n" | |
1199 | " jiffies <%lx>\n", | |
1200 | tx_ring->queue_index, | |
1201 | IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)), | |
1202 | IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)), | |
d3d00239 AD |
1203 | tx_ring->next_to_use, i, |
1204 | tx_ring->tx_buffer_info[i].time_stamp, jiffies); | |
c84d324c JF |
1205 | |
1206 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
1207 | ||
1208 | e_info(probe, | |
1209 | "tx hang %d detected on queue %d, resetting adapter\n", | |
1210 | adapter->tx_timeout_count + 1, tx_ring->queue_index); | |
1211 | ||
b953799e | 1212 | /* schedule immediate reset if we believe we hung */ |
c83c6cbd | 1213 | ixgbe_tx_timeout_reset(adapter); |
b953799e AD |
1214 | |
1215 | /* the adapter is about to reset, no point in enabling stuff */ | |
59224555 | 1216 | return true; |
b953799e | 1217 | } |
9a799d71 | 1218 | |
b2d96e0a AD |
1219 | netdev_tx_completed_queue(txring_txq(tx_ring), |
1220 | total_packets, total_bytes); | |
1221 | ||
e092be60 | 1222 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
30065e63 | 1223 | if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && |
7d4987de | 1224 | (ixgbe_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) { |
e092be60 AV |
1225 | /* Make sure that anybody stopping the queue after this |
1226 | * sees the new next_to_clean. | |
1227 | */ | |
1228 | smp_mb(); | |
729739b7 AD |
1229 | if (__netif_subqueue_stopped(tx_ring->netdev, |
1230 | tx_ring->queue_index) | |
1231 | && !test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1232 | netif_wake_subqueue(tx_ring->netdev, | |
1233 | tx_ring->queue_index); | |
5b7da515 | 1234 | ++tx_ring->tx_stats.restart_queue; |
30eba97a | 1235 | } |
e092be60 | 1236 | } |
9a799d71 | 1237 | |
59224555 | 1238 | return !!budget; |
9a799d71 AK |
1239 | } |
1240 | ||
5dd2d332 | 1241 | #ifdef CONFIG_IXGBE_DCA |
bdda1a61 AD |
1242 | static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, |
1243 | struct ixgbe_ring *tx_ring, | |
33cf09c9 | 1244 | int cpu) |
bd0362dd | 1245 | { |
33cf09c9 | 1246 | struct ixgbe_hw *hw = &adapter->hw; |
9de7605e | 1247 | u32 txctrl = 0; |
bdda1a61 | 1248 | u16 reg_offset; |
33cf09c9 | 1249 | |
9de7605e MR |
1250 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
1251 | txctrl = dca3_get_tag(tx_ring->dev, cpu); | |
1252 | ||
33cf09c9 AD |
1253 | switch (hw->mac.type) { |
1254 | case ixgbe_mac_82598EB: | |
bdda1a61 | 1255 | reg_offset = IXGBE_DCA_TXCTRL(tx_ring->reg_idx); |
33cf09c9 AD |
1256 | break; |
1257 | case ixgbe_mac_82599EB: | |
b93a2226 | 1258 | case ixgbe_mac_X540: |
bdda1a61 AD |
1259 | reg_offset = IXGBE_DCA_TXCTRL_82599(tx_ring->reg_idx); |
1260 | txctrl <<= IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599; | |
33cf09c9 AD |
1261 | break; |
1262 | default: | |
bdda1a61 AD |
1263 | /* for unknown hardware do not write register */ |
1264 | return; | |
bd0362dd | 1265 | } |
bdda1a61 AD |
1266 | |
1267 | /* | |
1268 | * We can enable relaxed ordering for reads, but not writes when | |
1269 | * DCA is enabled. This is due to a known issue in some chipsets | |
1270 | * which will cause the DCA tag to be cleared. | |
1271 | */ | |
1272 | txctrl |= IXGBE_DCA_TXCTRL_DESC_RRO_EN | | |
1273 | IXGBE_DCA_TXCTRL_DATA_RRO_EN | | |
1274 | IXGBE_DCA_TXCTRL_DESC_DCA_EN; | |
1275 | ||
1276 | IXGBE_WRITE_REG(hw, reg_offset, txctrl); | |
bd0362dd JC |
1277 | } |
1278 | ||
bdda1a61 AD |
1279 | static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, |
1280 | struct ixgbe_ring *rx_ring, | |
33cf09c9 | 1281 | int cpu) |
bd0362dd | 1282 | { |
33cf09c9 | 1283 | struct ixgbe_hw *hw = &adapter->hw; |
9de7605e | 1284 | u32 rxctrl = 0; |
bdda1a61 AD |
1285 | u8 reg_idx = rx_ring->reg_idx; |
1286 | ||
9de7605e MR |
1287 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
1288 | rxctrl = dca3_get_tag(rx_ring->dev, cpu); | |
33cf09c9 AD |
1289 | |
1290 | switch (hw->mac.type) { | |
33cf09c9 | 1291 | case ixgbe_mac_82599EB: |
b93a2226 | 1292 | case ixgbe_mac_X540: |
bdda1a61 | 1293 | rxctrl <<= IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599; |
33cf09c9 AD |
1294 | break; |
1295 | default: | |
1296 | break; | |
1297 | } | |
bdda1a61 AD |
1298 | |
1299 | /* | |
1300 | * We can enable relaxed ordering for reads, but not writes when | |
1301 | * DCA is enabled. This is due to a known issue in some chipsets | |
1302 | * which will cause the DCA tag to be cleared. | |
1303 | */ | |
1304 | rxctrl |= IXGBE_DCA_RXCTRL_DESC_RRO_EN | | |
9de7605e | 1305 | IXGBE_DCA_RXCTRL_DATA_DCA_EN | |
bdda1a61 AD |
1306 | IXGBE_DCA_RXCTRL_DESC_DCA_EN; |
1307 | ||
1308 | IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(reg_idx), rxctrl); | |
33cf09c9 AD |
1309 | } |
1310 | ||
1311 | static void ixgbe_update_dca(struct ixgbe_q_vector *q_vector) | |
1312 | { | |
1313 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
efe3d3c8 | 1314 | struct ixgbe_ring *ring; |
bd0362dd | 1315 | int cpu = get_cpu(); |
bd0362dd | 1316 | |
33cf09c9 AD |
1317 | if (q_vector->cpu == cpu) |
1318 | goto out_no_update; | |
1319 | ||
a557928e | 1320 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 | 1321 | ixgbe_update_tx_dca(adapter, ring, cpu); |
33cf09c9 | 1322 | |
a557928e | 1323 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 | 1324 | ixgbe_update_rx_dca(adapter, ring, cpu); |
33cf09c9 AD |
1325 | |
1326 | q_vector->cpu = cpu; | |
1327 | out_no_update: | |
bd0362dd JC |
1328 | put_cpu(); |
1329 | } | |
1330 | ||
1331 | static void ixgbe_setup_dca(struct ixgbe_adapter *adapter) | |
1332 | { | |
1333 | int i; | |
1334 | ||
e35ec126 | 1335 | /* always use CB2 mode, difference is masked in the CB driver */ |
9de7605e MR |
1336 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
1337 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, | |
1338 | IXGBE_DCA_CTRL_DCA_MODE_CB2); | |
1339 | else | |
1340 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, | |
1341 | IXGBE_DCA_CTRL_DCA_DISABLE); | |
e35ec126 | 1342 | |
49c7ffbe | 1343 | for (i = 0; i < adapter->num_q_vectors; i++) { |
33cf09c9 AD |
1344 | adapter->q_vector[i]->cpu = -1; |
1345 | ixgbe_update_dca(adapter->q_vector[i]); | |
bd0362dd JC |
1346 | } |
1347 | } | |
1348 | ||
1349 | static int __ixgbe_notify_dca(struct device *dev, void *data) | |
1350 | { | |
c60fbb00 | 1351 | struct ixgbe_adapter *adapter = dev_get_drvdata(dev); |
bd0362dd JC |
1352 | unsigned long event = *(unsigned long *)data; |
1353 | ||
2a72c31e | 1354 | if (!(adapter->flags & IXGBE_FLAG_DCA_CAPABLE)) |
33cf09c9 AD |
1355 | return 0; |
1356 | ||
bd0362dd JC |
1357 | switch (event) { |
1358 | case DCA_PROVIDER_ADD: | |
96b0e0f6 JB |
1359 | /* if we're already enabled, don't do it again */ |
1360 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
1361 | break; | |
652f093f | 1362 | if (dca_add_requester(dev) == 0) { |
96b0e0f6 | 1363 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
9de7605e MR |
1364 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, |
1365 | IXGBE_DCA_CTRL_DCA_MODE_CB2); | |
bd0362dd JC |
1366 | break; |
1367 | } | |
1368 | /* Fall Through since DCA is disabled. */ | |
1369 | case DCA_PROVIDER_REMOVE: | |
1370 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { | |
1371 | dca_remove_requester(dev); | |
1372 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
9de7605e MR |
1373 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, |
1374 | IXGBE_DCA_CTRL_DCA_DISABLE); | |
bd0362dd JC |
1375 | } |
1376 | break; | |
1377 | } | |
1378 | ||
652f093f | 1379 | return 0; |
bd0362dd | 1380 | } |
67a74ee2 | 1381 | |
bdda1a61 | 1382 | #endif /* CONFIG_IXGBE_DCA */ |
7edda4b8 FD |
1383 | |
1384 | #define IXGBE_RSS_L4_TYPES_MASK \ | |
1385 | ((1ul << IXGBE_RXDADV_RSSTYPE_IPV4_TCP) | \ | |
1386 | (1ul << IXGBE_RXDADV_RSSTYPE_IPV4_UDP) | \ | |
1387 | (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_TCP) | \ | |
1388 | (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_UDP)) | |
1389 | ||
8a0da21b AD |
1390 | static inline void ixgbe_rx_hash(struct ixgbe_ring *ring, |
1391 | union ixgbe_adv_rx_desc *rx_desc, | |
67a74ee2 ET |
1392 | struct sk_buff *skb) |
1393 | { | |
7edda4b8 FD |
1394 | u16 rss_type; |
1395 | ||
1396 | if (!(ring->netdev->features & NETIF_F_RXHASH)) | |
1397 | return; | |
1398 | ||
1399 | rss_type = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info) & | |
1400 | IXGBE_RXDADV_RSSTYPE_MASK; | |
1401 | ||
1402 | if (!rss_type) | |
1403 | return; | |
1404 | ||
1405 | skb_set_hash(skb, le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), | |
1406 | (IXGBE_RSS_L4_TYPES_MASK & (1ul << rss_type)) ? | |
1407 | PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3); | |
67a74ee2 ET |
1408 | } |
1409 | ||
f800326d | 1410 | #ifdef IXGBE_FCOE |
ff886dfc AD |
1411 | /** |
1412 | * ixgbe_rx_is_fcoe - check the rx desc for incoming pkt type | |
57efd44c | 1413 | * @ring: structure containing ring specific data |
ff886dfc AD |
1414 | * @rx_desc: advanced rx descriptor |
1415 | * | |
1416 | * Returns : true if it is FCoE pkt | |
1417 | */ | |
57efd44c | 1418 | static inline bool ixgbe_rx_is_fcoe(struct ixgbe_ring *ring, |
ff886dfc AD |
1419 | union ixgbe_adv_rx_desc *rx_desc) |
1420 | { | |
1421 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; | |
1422 | ||
57efd44c | 1423 | return test_bit(__IXGBE_RX_FCOE, &ring->state) && |
ff886dfc AD |
1424 | ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_ETQF_MASK)) == |
1425 | (cpu_to_le16(IXGBE_ETQF_FILTER_FCOE << | |
1426 | IXGBE_RXDADV_PKTTYPE_ETQF_SHIFT))); | |
1427 | } | |
1428 | ||
f800326d | 1429 | #endif /* IXGBE_FCOE */ |
e59bd25d AV |
1430 | /** |
1431 | * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum | |
8a0da21b AD |
1432 | * @ring: structure containing ring specific data |
1433 | * @rx_desc: current Rx descriptor being processed | |
e59bd25d AV |
1434 | * @skb: skb currently being received and modified |
1435 | **/ | |
8a0da21b | 1436 | static inline void ixgbe_rx_checksum(struct ixgbe_ring *ring, |
8bae1b2b | 1437 | union ixgbe_adv_rx_desc *rx_desc, |
f56e0cb1 | 1438 | struct sk_buff *skb) |
9a799d71 | 1439 | { |
3f207800 DS |
1440 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
1441 | __le16 hdr_info = rx_desc->wb.lower.lo_dword.hs_rss.hdr_info; | |
1442 | bool encap_pkt = false; | |
1443 | ||
8a0da21b | 1444 | skb_checksum_none_assert(skb); |
9a799d71 | 1445 | |
712744be | 1446 | /* Rx csum disabled */ |
8a0da21b | 1447 | if (!(ring->netdev->features & NETIF_F_RXCSUM)) |
9a799d71 | 1448 | return; |
e59bd25d | 1449 | |
3f207800 DS |
1450 | if ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_VXLAN)) && |
1451 | (hdr_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_TUNNEL >> 16))) { | |
1452 | encap_pkt = true; | |
1453 | skb->encapsulation = 1; | |
3f207800 DS |
1454 | } |
1455 | ||
e59bd25d | 1456 | /* if IP and error */ |
f56e0cb1 AD |
1457 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_IPCS) && |
1458 | ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_IPE)) { | |
8a0da21b | 1459 | ring->rx_stats.csum_err++; |
9a799d71 AK |
1460 | return; |
1461 | } | |
e59bd25d | 1462 | |
f56e0cb1 | 1463 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_L4CS)) |
e59bd25d AV |
1464 | return; |
1465 | ||
f56e0cb1 | 1466 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_TCPE)) { |
8bae1b2b DS |
1467 | /* |
1468 | * 82599 errata, UDP frames with a 0 checksum can be marked as | |
1469 | * checksum errors. | |
1470 | */ | |
8a0da21b AD |
1471 | if ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_UDP)) && |
1472 | test_bit(__IXGBE_RX_CSUM_UDP_ZERO_ERR, &ring->state)) | |
8bae1b2b DS |
1473 | return; |
1474 | ||
8a0da21b | 1475 | ring->rx_stats.csum_err++; |
e59bd25d AV |
1476 | return; |
1477 | } | |
1478 | ||
9a799d71 | 1479 | /* It must be a TCP or UDP packet with a valid checksum */ |
e59bd25d | 1480 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
3f207800 DS |
1481 | if (encap_pkt) { |
1482 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_OUTERIPCS)) | |
1483 | return; | |
1484 | ||
1485 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_OUTERIPER)) { | |
d469251b | 1486 | skb->ip_summed = CHECKSUM_NONE; |
3f207800 DS |
1487 | return; |
1488 | } | |
1489 | /* If we checked the outer header let the stack know */ | |
1490 | skb->csum_level = 1; | |
1491 | } | |
9a799d71 AK |
1492 | } |
1493 | ||
f990b79b AD |
1494 | static bool ixgbe_alloc_mapped_page(struct ixgbe_ring *rx_ring, |
1495 | struct ixgbe_rx_buffer *bi) | |
1496 | { | |
1497 | struct page *page = bi->page; | |
18cb652a | 1498 | dma_addr_t dma; |
f990b79b | 1499 | |
f800326d | 1500 | /* since we are recycling buffers we should seldom need to alloc */ |
18cb652a | 1501 | if (likely(page)) |
f990b79b AD |
1502 | return true; |
1503 | ||
f800326d | 1504 | /* alloc new page for storage */ |
18cb652a AD |
1505 | page = dev_alloc_pages(ixgbe_rx_pg_order(rx_ring)); |
1506 | if (unlikely(!page)) { | |
1507 | rx_ring->rx_stats.alloc_rx_page_failed++; | |
1508 | return false; | |
f990b79b AD |
1509 | } |
1510 | ||
f800326d AD |
1511 | /* map page for use */ |
1512 | dma = dma_map_page(rx_ring->dev, page, 0, | |
1513 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1514 | ||
1515 | /* | |
1516 | * if mapping failed free memory back to system since | |
1517 | * there isn't much point in holding memory we can't use | |
1518 | */ | |
1519 | if (dma_mapping_error(rx_ring->dev, dma)) { | |
dd411ec4 | 1520 | __free_pages(page, ixgbe_rx_pg_order(rx_ring)); |
f990b79b | 1521 | |
f990b79b AD |
1522 | rx_ring->rx_stats.alloc_rx_page_failed++; |
1523 | return false; | |
1524 | } | |
1525 | ||
f800326d | 1526 | bi->dma = dma; |
18cb652a | 1527 | bi->page = page; |
afaa9459 | 1528 | bi->page_offset = 0; |
f800326d | 1529 | |
f990b79b AD |
1530 | return true; |
1531 | } | |
1532 | ||
9a799d71 | 1533 | /** |
f990b79b | 1534 | * ixgbe_alloc_rx_buffers - Replace used receive buffers |
fc77dc3c AD |
1535 | * @rx_ring: ring to place buffers on |
1536 | * @cleaned_count: number of buffers to replace | |
9a799d71 | 1537 | **/ |
fc77dc3c | 1538 | void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count) |
9a799d71 | 1539 | { |
9a799d71 | 1540 | union ixgbe_adv_rx_desc *rx_desc; |
3a581073 | 1541 | struct ixgbe_rx_buffer *bi; |
d5f398ed | 1542 | u16 i = rx_ring->next_to_use; |
9a799d71 | 1543 | |
f800326d AD |
1544 | /* nothing to do */ |
1545 | if (!cleaned_count) | |
fc77dc3c AD |
1546 | return; |
1547 | ||
e4f74028 | 1548 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
f990b79b AD |
1549 | bi = &rx_ring->rx_buffer_info[i]; |
1550 | i -= rx_ring->count; | |
9a799d71 | 1551 | |
f800326d AD |
1552 | do { |
1553 | if (!ixgbe_alloc_mapped_page(rx_ring, bi)) | |
f990b79b | 1554 | break; |
d5f398ed | 1555 | |
f800326d AD |
1556 | /* |
1557 | * Refresh the desc even if buffer_addrs didn't change | |
1558 | * because each write-back erases this info. | |
1559 | */ | |
1560 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset); | |
9a799d71 | 1561 | |
f990b79b AD |
1562 | rx_desc++; |
1563 | bi++; | |
9a799d71 | 1564 | i++; |
f990b79b | 1565 | if (unlikely(!i)) { |
e4f74028 | 1566 | rx_desc = IXGBE_RX_DESC(rx_ring, 0); |
f990b79b AD |
1567 | bi = rx_ring->rx_buffer_info; |
1568 | i -= rx_ring->count; | |
1569 | } | |
1570 | ||
18cb652a AD |
1571 | /* clear the status bits for the next_to_use descriptor */ |
1572 | rx_desc->wb.upper.status_error = 0; | |
f800326d AD |
1573 | |
1574 | cleaned_count--; | |
1575 | } while (cleaned_count); | |
7c6e0a43 | 1576 | |
f990b79b AD |
1577 | i += rx_ring->count; |
1578 | ||
ad435ec6 AD |
1579 | if (rx_ring->next_to_use != i) { |
1580 | rx_ring->next_to_use = i; | |
1581 | ||
1582 | /* update next to alloc since we have filled the ring */ | |
1583 | rx_ring->next_to_alloc = i; | |
1584 | ||
1585 | /* Force memory writes to complete before letting h/w | |
1586 | * know there are new descriptors to fetch. (Only | |
1587 | * applicable for weak-ordered memory model archs, | |
1588 | * such as IA-64). | |
1589 | */ | |
1590 | wmb(); | |
1591 | writel(i, rx_ring->tail); | |
1592 | } | |
9a799d71 AK |
1593 | } |
1594 | ||
1d2024f6 AD |
1595 | static void ixgbe_set_rsc_gso_size(struct ixgbe_ring *ring, |
1596 | struct sk_buff *skb) | |
1597 | { | |
f800326d | 1598 | u16 hdr_len = skb_headlen(skb); |
1d2024f6 AD |
1599 | |
1600 | /* set gso_size to avoid messing up TCP MSS */ | |
1601 | skb_shinfo(skb)->gso_size = DIV_ROUND_UP((skb->len - hdr_len), | |
1602 | IXGBE_CB(skb)->append_cnt); | |
96be80ab | 1603 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; |
1d2024f6 AD |
1604 | } |
1605 | ||
1606 | static void ixgbe_update_rsc_stats(struct ixgbe_ring *rx_ring, | |
1607 | struct sk_buff *skb) | |
1608 | { | |
1609 | /* if append_cnt is 0 then frame is not RSC */ | |
1610 | if (!IXGBE_CB(skb)->append_cnt) | |
1611 | return; | |
1612 | ||
1613 | rx_ring->rx_stats.rsc_count += IXGBE_CB(skb)->append_cnt; | |
1614 | rx_ring->rx_stats.rsc_flush++; | |
1615 | ||
1616 | ixgbe_set_rsc_gso_size(rx_ring, skb); | |
1617 | ||
1618 | /* gso_size is computed using append_cnt so always clear it last */ | |
1619 | IXGBE_CB(skb)->append_cnt = 0; | |
1620 | } | |
1621 | ||
8a0da21b AD |
1622 | /** |
1623 | * ixgbe_process_skb_fields - Populate skb header fields from Rx descriptor | |
1624 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1625 | * @rx_desc: pointer to the EOP Rx descriptor | |
1626 | * @skb: pointer to current skb being populated | |
f8212f97 | 1627 | * |
8a0da21b AD |
1628 | * This function checks the ring, descriptor, and packet information in |
1629 | * order to populate the hash, checksum, VLAN, timestamp, protocol, and | |
1630 | * other fields within the skb. | |
f8212f97 | 1631 | **/ |
8a0da21b AD |
1632 | static void ixgbe_process_skb_fields(struct ixgbe_ring *rx_ring, |
1633 | union ixgbe_adv_rx_desc *rx_desc, | |
1634 | struct sk_buff *skb) | |
f8212f97 | 1635 | { |
43e95f11 | 1636 | struct net_device *dev = rx_ring->netdev; |
a9763f3c | 1637 | u32 flags = rx_ring->q_vector->adapter->flags; |
43e95f11 | 1638 | |
8a0da21b AD |
1639 | ixgbe_update_rsc_stats(rx_ring, skb); |
1640 | ||
1641 | ixgbe_rx_hash(rx_ring, rx_desc, skb); | |
f8212f97 | 1642 | |
8a0da21b AD |
1643 | ixgbe_rx_checksum(rx_ring, rx_desc, skb); |
1644 | ||
a9763f3c MR |
1645 | if (unlikely(flags & IXGBE_FLAG_RX_HWTSTAMP_ENABLED)) |
1646 | ixgbe_ptp_rx_hwtstamp(rx_ring, rx_desc, skb); | |
3a6a4eda | 1647 | |
f646968f | 1648 | if ((dev->features & NETIF_F_HW_VLAN_CTAG_RX) && |
43e95f11 | 1649 | ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_VP)) { |
8a0da21b | 1650 | u16 vid = le16_to_cpu(rx_desc->wb.upper.vlan); |
86a9bad3 | 1651 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
f8212f97 AD |
1652 | } |
1653 | ||
8a0da21b | 1654 | skb_record_rx_queue(skb, rx_ring->queue_index); |
aa80175a | 1655 | |
43e95f11 | 1656 | skb->protocol = eth_type_trans(skb, dev); |
f8212f97 AD |
1657 | } |
1658 | ||
8a0da21b AD |
1659 | static void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector, |
1660 | struct sk_buff *skb) | |
aa80175a | 1661 | { |
93f93a44 | 1662 | skb_mark_napi_id(skb, &q_vector->napi); |
b4640030 | 1663 | if (ixgbe_qv_busy_polling(q_vector)) |
5a85e737 | 1664 | netif_receive_skb(skb); |
8a0da21b | 1665 | else |
856f606e | 1666 | napi_gro_receive(&q_vector->napi, skb); |
aa80175a | 1667 | } |
43634e82 | 1668 | |
f800326d AD |
1669 | /** |
1670 | * ixgbe_is_non_eop - process handling of non-EOP buffers | |
1671 | * @rx_ring: Rx ring being processed | |
1672 | * @rx_desc: Rx descriptor for current buffer | |
1673 | * @skb: Current socket buffer containing buffer in progress | |
1674 | * | |
1675 | * This function updates next to clean. If the buffer is an EOP buffer | |
1676 | * this function exits returning false, otherwise it will place the | |
1677 | * sk_buff in the next buffer to be chained and return true indicating | |
1678 | * that this is in fact a non-EOP buffer. | |
1679 | **/ | |
1680 | static bool ixgbe_is_non_eop(struct ixgbe_ring *rx_ring, | |
1681 | union ixgbe_adv_rx_desc *rx_desc, | |
1682 | struct sk_buff *skb) | |
1683 | { | |
1684 | u32 ntc = rx_ring->next_to_clean + 1; | |
1685 | ||
1686 | /* fetch, update, and store next to clean */ | |
1687 | ntc = (ntc < rx_ring->count) ? ntc : 0; | |
1688 | rx_ring->next_to_clean = ntc; | |
1689 | ||
1690 | prefetch(IXGBE_RX_DESC(rx_ring, ntc)); | |
1691 | ||
5a02cbd1 AD |
1692 | /* update RSC append count if present */ |
1693 | if (ring_is_rsc_enabled(rx_ring)) { | |
1694 | __le32 rsc_enabled = rx_desc->wb.lower.lo_dword.data & | |
1695 | cpu_to_le32(IXGBE_RXDADV_RSCCNT_MASK); | |
1696 | ||
1697 | if (unlikely(rsc_enabled)) { | |
1698 | u32 rsc_cnt = le32_to_cpu(rsc_enabled); | |
1699 | ||
1700 | rsc_cnt >>= IXGBE_RXDADV_RSCCNT_SHIFT; | |
1701 | IXGBE_CB(skb)->append_cnt += rsc_cnt - 1; | |
f800326d | 1702 | |
5a02cbd1 AD |
1703 | /* update ntc based on RSC value */ |
1704 | ntc = le32_to_cpu(rx_desc->wb.upper.status_error); | |
1705 | ntc &= IXGBE_RXDADV_NEXTP_MASK; | |
1706 | ntc >>= IXGBE_RXDADV_NEXTP_SHIFT; | |
1707 | } | |
f800326d AD |
1708 | } |
1709 | ||
5a02cbd1 AD |
1710 | /* if we are the last buffer then there is nothing else to do */ |
1711 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
1712 | return false; | |
1713 | ||
f800326d AD |
1714 | /* place skb in next buffer to be received */ |
1715 | rx_ring->rx_buffer_info[ntc].skb = skb; | |
1716 | rx_ring->rx_stats.non_eop_descs++; | |
1717 | ||
1718 | return true; | |
1719 | } | |
1720 | ||
19861ce2 AD |
1721 | /** |
1722 | * ixgbe_pull_tail - ixgbe specific version of skb_pull_tail | |
1723 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1724 | * @skb: pointer to current skb being adjusted | |
1725 | * | |
1726 | * This function is an ixgbe specific version of __pskb_pull_tail. The | |
1727 | * main difference between this version and the original function is that | |
1728 | * this function can make several assumptions about the state of things | |
1729 | * that allow for significant optimizations versus the standard function. | |
1730 | * As a result we can do things like drop a frag and maintain an accurate | |
1731 | * truesize for the skb. | |
1732 | */ | |
1733 | static void ixgbe_pull_tail(struct ixgbe_ring *rx_ring, | |
1734 | struct sk_buff *skb) | |
1735 | { | |
1736 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1737 | unsigned char *va; | |
1738 | unsigned int pull_len; | |
1739 | ||
1740 | /* | |
1741 | * it is valid to use page_address instead of kmap since we are | |
1742 | * working with pages allocated out of the lomem pool per | |
1743 | * alloc_page(GFP_ATOMIC) | |
1744 | */ | |
1745 | va = skb_frag_address(frag); | |
1746 | ||
1747 | /* | |
1748 | * we need the header to contain the greater of either ETH_HLEN or | |
1749 | * 60 bytes if the skb->len is less than 60 for skb_pad. | |
1750 | */ | |
8496e338 | 1751 | pull_len = eth_get_headlen(va, IXGBE_RX_HDR_SIZE); |
19861ce2 AD |
1752 | |
1753 | /* align pull length to size of long to optimize memcpy performance */ | |
1754 | skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long))); | |
1755 | ||
1756 | /* update all of the pointers */ | |
1757 | skb_frag_size_sub(frag, pull_len); | |
1758 | frag->page_offset += pull_len; | |
1759 | skb->data_len -= pull_len; | |
1760 | skb->tail += pull_len; | |
19861ce2 AD |
1761 | } |
1762 | ||
42073d91 AD |
1763 | /** |
1764 | * ixgbe_dma_sync_frag - perform DMA sync for first frag of SKB | |
1765 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1766 | * @skb: pointer to current skb being updated | |
1767 | * | |
1768 | * This function provides a basic DMA sync up for the first fragment of an | |
1769 | * skb. The reason for doing this is that the first fragment cannot be | |
1770 | * unmapped until we have reached the end of packet descriptor for a buffer | |
1771 | * chain. | |
1772 | */ | |
1773 | static void ixgbe_dma_sync_frag(struct ixgbe_ring *rx_ring, | |
1774 | struct sk_buff *skb) | |
1775 | { | |
1776 | /* if the page was released unmap it, else just sync our portion */ | |
1777 | if (unlikely(IXGBE_CB(skb)->page_released)) { | |
1778 | dma_unmap_page(rx_ring->dev, IXGBE_CB(skb)->dma, | |
1779 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1780 | IXGBE_CB(skb)->page_released = false; | |
1781 | } else { | |
1782 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1783 | ||
1784 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
1785 | IXGBE_CB(skb)->dma, | |
1786 | frag->page_offset, | |
1787 | ixgbe_rx_bufsz(rx_ring), | |
1788 | DMA_FROM_DEVICE); | |
1789 | } | |
1790 | IXGBE_CB(skb)->dma = 0; | |
1791 | } | |
1792 | ||
f800326d AD |
1793 | /** |
1794 | * ixgbe_cleanup_headers - Correct corrupted or empty headers | |
1795 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1796 | * @rx_desc: pointer to the EOP Rx descriptor | |
1797 | * @skb: pointer to current skb being fixed | |
1798 | * | |
1799 | * Check for corrupted packet headers caused by senders on the local L2 | |
1800 | * embedded NIC switch not setting up their Tx Descriptors right. These | |
1801 | * should be very rare. | |
1802 | * | |
1803 | * Also address the case where we are pulling data in on pages only | |
1804 | * and as such no data is present in the skb header. | |
1805 | * | |
1806 | * In addition if skb is not at least 60 bytes we need to pad it so that | |
1807 | * it is large enough to qualify as a valid Ethernet frame. | |
1808 | * | |
1809 | * Returns true if an error was encountered and skb was freed. | |
1810 | **/ | |
1811 | static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring, | |
1812 | union ixgbe_adv_rx_desc *rx_desc, | |
1813 | struct sk_buff *skb) | |
1814 | { | |
f800326d | 1815 | struct net_device *netdev = rx_ring->netdev; |
f800326d AD |
1816 | |
1817 | /* verify that the packet does not have any known errors */ | |
1818 | if (unlikely(ixgbe_test_staterr(rx_desc, | |
1819 | IXGBE_RXDADV_ERR_FRAME_ERR_MASK) && | |
1820 | !(netdev->features & NETIF_F_RXALL))) { | |
1821 | dev_kfree_skb_any(skb); | |
1822 | return true; | |
1823 | } | |
1824 | ||
19861ce2 | 1825 | /* place header in linear portion of buffer */ |
cf3fe7ac AD |
1826 | if (skb_is_nonlinear(skb)) |
1827 | ixgbe_pull_tail(rx_ring, skb); | |
f800326d | 1828 | |
57efd44c AD |
1829 | #ifdef IXGBE_FCOE |
1830 | /* do not attempt to pad FCoE Frames as this will disrupt DDP */ | |
1831 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) | |
1832 | return false; | |
1833 | ||
1834 | #endif | |
a94d9e22 AD |
1835 | /* if eth_skb_pad returns an error the skb was freed */ |
1836 | if (eth_skb_pad(skb)) | |
1837 | return true; | |
f800326d AD |
1838 | |
1839 | return false; | |
1840 | } | |
1841 | ||
f800326d AD |
1842 | /** |
1843 | * ixgbe_reuse_rx_page - page flip buffer and store it back on the ring | |
1844 | * @rx_ring: rx descriptor ring to store buffers on | |
1845 | * @old_buff: donor buffer to have page reused | |
1846 | * | |
0549ae20 | 1847 | * Synchronizes page for reuse by the adapter |
f800326d AD |
1848 | **/ |
1849 | static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring, | |
1850 | struct ixgbe_rx_buffer *old_buff) | |
1851 | { | |
1852 | struct ixgbe_rx_buffer *new_buff; | |
1853 | u16 nta = rx_ring->next_to_alloc; | |
f800326d AD |
1854 | |
1855 | new_buff = &rx_ring->rx_buffer_info[nta]; | |
1856 | ||
1857 | /* update, and store next to alloc */ | |
1858 | nta++; | |
1859 | rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0; | |
1860 | ||
1861 | /* transfer page from old buffer to new buffer */ | |
18cb652a | 1862 | *new_buff = *old_buff; |
f800326d AD |
1863 | |
1864 | /* sync the buffer for use by the device */ | |
1865 | dma_sync_single_range_for_device(rx_ring->dev, new_buff->dma, | |
0549ae20 AD |
1866 | new_buff->page_offset, |
1867 | ixgbe_rx_bufsz(rx_ring), | |
f800326d | 1868 | DMA_FROM_DEVICE); |
f800326d AD |
1869 | } |
1870 | ||
18cb652a AD |
1871 | static inline bool ixgbe_page_is_reserved(struct page *page) |
1872 | { | |
2f064f34 | 1873 | return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); |
18cb652a AD |
1874 | } |
1875 | ||
f800326d AD |
1876 | /** |
1877 | * ixgbe_add_rx_frag - Add contents of Rx buffer to sk_buff | |
1878 | * @rx_ring: rx descriptor ring to transact packets on | |
1879 | * @rx_buffer: buffer containing page to add | |
1880 | * @rx_desc: descriptor containing length of buffer written by hardware | |
1881 | * @skb: sk_buff to place the data into | |
1882 | * | |
0549ae20 AD |
1883 | * This function will add the data contained in rx_buffer->page to the skb. |
1884 | * This is done either through a direct copy if the data in the buffer is | |
1885 | * less than the skb header size, otherwise it will just attach the page as | |
1886 | * a frag to the skb. | |
1887 | * | |
1888 | * The function will then update the page offset if necessary and return | |
1889 | * true if the buffer can be reused by the adapter. | |
f800326d | 1890 | **/ |
0549ae20 | 1891 | static bool ixgbe_add_rx_frag(struct ixgbe_ring *rx_ring, |
f800326d | 1892 | struct ixgbe_rx_buffer *rx_buffer, |
0549ae20 AD |
1893 | union ixgbe_adv_rx_desc *rx_desc, |
1894 | struct sk_buff *skb) | |
f800326d | 1895 | { |
0549ae20 AD |
1896 | struct page *page = rx_buffer->page; |
1897 | unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); | |
09816fbe | 1898 | #if (PAGE_SIZE < 8192) |
0549ae20 | 1899 | unsigned int truesize = ixgbe_rx_bufsz(rx_ring); |
09816fbe AD |
1900 | #else |
1901 | unsigned int truesize = ALIGN(size, L1_CACHE_BYTES); | |
1902 | unsigned int last_offset = ixgbe_rx_pg_size(rx_ring) - | |
1903 | ixgbe_rx_bufsz(rx_ring); | |
1904 | #endif | |
0549ae20 | 1905 | |
cf3fe7ac AD |
1906 | if ((size <= IXGBE_RX_HDR_SIZE) && !skb_is_nonlinear(skb)) { |
1907 | unsigned char *va = page_address(page) + rx_buffer->page_offset; | |
1908 | ||
1909 | memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long))); | |
1910 | ||
18cb652a AD |
1911 | /* page is not reserved, we can reuse buffer as-is */ |
1912 | if (likely(!ixgbe_page_is_reserved(page))) | |
cf3fe7ac AD |
1913 | return true; |
1914 | ||
1915 | /* this page cannot be reused so discard it */ | |
18cb652a | 1916 | __free_pages(page, ixgbe_rx_pg_order(rx_ring)); |
cf3fe7ac AD |
1917 | return false; |
1918 | } | |
1919 | ||
0549ae20 AD |
1920 | skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, |
1921 | rx_buffer->page_offset, size, truesize); | |
1922 | ||
09816fbe | 1923 | /* avoid re-using remote pages */ |
18cb652a | 1924 | if (unlikely(ixgbe_page_is_reserved(page))) |
09816fbe AD |
1925 | return false; |
1926 | ||
1927 | #if (PAGE_SIZE < 8192) | |
1928 | /* if we are only owner of page we can reuse it */ | |
1929 | if (unlikely(page_count(page) != 1)) | |
0549ae20 AD |
1930 | return false; |
1931 | ||
1932 | /* flip page offset to other buffer */ | |
1933 | rx_buffer->page_offset ^= truesize; | |
09816fbe AD |
1934 | #else |
1935 | /* move offset up to the next cache line */ | |
1936 | rx_buffer->page_offset += truesize; | |
1937 | ||
1938 | if (rx_buffer->page_offset > last_offset) | |
1939 | return false; | |
09816fbe | 1940 | #endif |
0549ae20 | 1941 | |
18cb652a AD |
1942 | /* Even if we own the page, we are not allowed to use atomic_set() |
1943 | * This would break get_page_unless_zero() users. | |
1944 | */ | |
fe896d18 | 1945 | page_ref_inc(page); |
18cb652a | 1946 | |
0549ae20 | 1947 | return true; |
f800326d AD |
1948 | } |
1949 | ||
18806c9e AD |
1950 | static struct sk_buff *ixgbe_fetch_rx_buffer(struct ixgbe_ring *rx_ring, |
1951 | union ixgbe_adv_rx_desc *rx_desc) | |
1952 | { | |
1953 | struct ixgbe_rx_buffer *rx_buffer; | |
1954 | struct sk_buff *skb; | |
1955 | struct page *page; | |
1956 | ||
1957 | rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; | |
1958 | page = rx_buffer->page; | |
1959 | prefetchw(page); | |
1960 | ||
1961 | skb = rx_buffer->skb; | |
1962 | ||
1963 | if (likely(!skb)) { | |
1964 | void *page_addr = page_address(page) + | |
1965 | rx_buffer->page_offset; | |
1966 | ||
1967 | /* prefetch first cache line of first page */ | |
1968 | prefetch(page_addr); | |
1969 | #if L1_CACHE_BYTES < 128 | |
1970 | prefetch(page_addr + L1_CACHE_BYTES); | |
1971 | #endif | |
1972 | ||
1973 | /* allocate a skb to store the frags */ | |
67fd893e AD |
1974 | skb = napi_alloc_skb(&rx_ring->q_vector->napi, |
1975 | IXGBE_RX_HDR_SIZE); | |
18806c9e AD |
1976 | if (unlikely(!skb)) { |
1977 | rx_ring->rx_stats.alloc_rx_buff_failed++; | |
1978 | return NULL; | |
1979 | } | |
1980 | ||
1981 | /* | |
1982 | * we will be copying header into skb->data in | |
1983 | * pskb_may_pull so it is in our interest to prefetch | |
1984 | * it now to avoid a possible cache miss | |
1985 | */ | |
1986 | prefetchw(skb->data); | |
1987 | ||
1988 | /* | |
1989 | * Delay unmapping of the first packet. It carries the | |
1990 | * header information, HW may still access the header | |
1991 | * after the writeback. Only unmap it when EOP is | |
1992 | * reached | |
1993 | */ | |
1994 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
1995 | goto dma_sync; | |
1996 | ||
1997 | IXGBE_CB(skb)->dma = rx_buffer->dma; | |
1998 | } else { | |
1999 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP)) | |
2000 | ixgbe_dma_sync_frag(rx_ring, skb); | |
2001 | ||
2002 | dma_sync: | |
2003 | /* we are reusing so sync this buffer for CPU use */ | |
2004 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
2005 | rx_buffer->dma, | |
2006 | rx_buffer->page_offset, | |
2007 | ixgbe_rx_bufsz(rx_ring), | |
2008 | DMA_FROM_DEVICE); | |
18cb652a AD |
2009 | |
2010 | rx_buffer->skb = NULL; | |
18806c9e AD |
2011 | } |
2012 | ||
2013 | /* pull page into skb */ | |
2014 | if (ixgbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { | |
2015 | /* hand second half of page back to the ring */ | |
2016 | ixgbe_reuse_rx_page(rx_ring, rx_buffer); | |
2017 | } else if (IXGBE_CB(skb)->dma == rx_buffer->dma) { | |
2018 | /* the page has been released from the ring */ | |
2019 | IXGBE_CB(skb)->page_released = true; | |
2020 | } else { | |
2021 | /* we are not reusing the buffer so unmap it */ | |
2022 | dma_unmap_page(rx_ring->dev, rx_buffer->dma, | |
2023 | ixgbe_rx_pg_size(rx_ring), | |
2024 | DMA_FROM_DEVICE); | |
2025 | } | |
2026 | ||
2027 | /* clear contents of buffer_info */ | |
18806c9e AD |
2028 | rx_buffer->page = NULL; |
2029 | ||
2030 | return skb; | |
f800326d AD |
2031 | } |
2032 | ||
2033 | /** | |
2034 | * ixgbe_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf | |
2035 | * @q_vector: structure containing interrupt and ring information | |
2036 | * @rx_ring: rx descriptor ring to transact packets on | |
2037 | * @budget: Total limit on number of packets to process | |
2038 | * | |
2039 | * This function provides a "bounce buffer" approach to Rx interrupt | |
2040 | * processing. The advantage to this is that on systems that have | |
2041 | * expensive overhead for IOMMU access this provides a means of avoiding | |
2042 | * it by maintaining the mapping of the page to the syste. | |
2043 | * | |
5a85e737 | 2044 | * Returns amount of work completed |
f800326d | 2045 | **/ |
5a85e737 | 2046 | static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 2047 | struct ixgbe_ring *rx_ring, |
f4de00ed | 2048 | const int budget) |
9a799d71 | 2049 | { |
d2f4fbe2 | 2050 | unsigned int total_rx_bytes = 0, total_rx_packets = 0; |
3f2d1c0f | 2051 | #ifdef IXGBE_FCOE |
f800326d | 2052 | struct ixgbe_adapter *adapter = q_vector->adapter; |
4ffdf91a MR |
2053 | int ddp_bytes; |
2054 | unsigned int mss = 0; | |
3d8fd385 | 2055 | #endif /* IXGBE_FCOE */ |
f800326d | 2056 | u16 cleaned_count = ixgbe_desc_unused(rx_ring); |
9a799d71 | 2057 | |
fdabfc8a | 2058 | while (likely(total_rx_packets < budget)) { |
f800326d AD |
2059 | union ixgbe_adv_rx_desc *rx_desc; |
2060 | struct sk_buff *skb; | |
f800326d AD |
2061 | |
2062 | /* return some buffers to hardware, one at a time is too slow */ | |
2063 | if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) { | |
2064 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); | |
2065 | cleaned_count = 0; | |
2066 | } | |
2067 | ||
18806c9e | 2068 | rx_desc = IXGBE_RX_DESC(rx_ring, rx_ring->next_to_clean); |
f800326d | 2069 | |
124b74c1 | 2070 | if (!rx_desc->wb.upper.status_error) |
f800326d | 2071 | break; |
9a799d71 | 2072 | |
124b74c1 | 2073 | /* This memory barrier is needed to keep us from reading |
f800326d | 2074 | * any other fields out of the rx_desc until we know the |
124b74c1 | 2075 | * descriptor has been written back |
f800326d | 2076 | */ |
124b74c1 | 2077 | dma_rmb(); |
9a799d71 | 2078 | |
18806c9e AD |
2079 | /* retrieve a buffer from the ring */ |
2080 | skb = ixgbe_fetch_rx_buffer(rx_ring, rx_desc); | |
f800326d | 2081 | |
18806c9e AD |
2082 | /* exit if we failed to retrieve a buffer */ |
2083 | if (!skb) | |
2084 | break; | |
9a799d71 | 2085 | |
9a799d71 | 2086 | cleaned_count++; |
f8212f97 | 2087 | |
f800326d AD |
2088 | /* place incomplete frames back on ring for completion */ |
2089 | if (ixgbe_is_non_eop(rx_ring, rx_desc, skb)) | |
2090 | continue; | |
c267fc16 | 2091 | |
f800326d AD |
2092 | /* verify the packet layout is correct */ |
2093 | if (ixgbe_cleanup_headers(rx_ring, rx_desc, skb)) | |
2094 | continue; | |
9a799d71 | 2095 | |
d2f4fbe2 AV |
2096 | /* probably a little skewed due to removing CRC */ |
2097 | total_rx_bytes += skb->len; | |
d2f4fbe2 | 2098 | |
8a0da21b AD |
2099 | /* populate checksum, timestamp, VLAN, and protocol */ |
2100 | ixgbe_process_skb_fields(rx_ring, rx_desc, skb); | |
2101 | ||
332d4a7d YZ |
2102 | #ifdef IXGBE_FCOE |
2103 | /* if ddp, not passing to ULD unless for FCP_RSP or error */ | |
57efd44c | 2104 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) { |
f56e0cb1 | 2105 | ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); |
4ffdf91a MR |
2106 | /* include DDPed FCoE data */ |
2107 | if (ddp_bytes > 0) { | |
2108 | if (!mss) { | |
2109 | mss = rx_ring->netdev->mtu - | |
2110 | sizeof(struct fcoe_hdr) - | |
2111 | sizeof(struct fc_frame_header) - | |
2112 | sizeof(struct fcoe_crc_eof); | |
2113 | if (mss > 512) | |
2114 | mss &= ~511; | |
2115 | } | |
2116 | total_rx_bytes += ddp_bytes; | |
2117 | total_rx_packets += DIV_ROUND_UP(ddp_bytes, | |
2118 | mss); | |
2119 | } | |
63d635b2 AD |
2120 | if (!ddp_bytes) { |
2121 | dev_kfree_skb_any(skb); | |
f800326d | 2122 | continue; |
63d635b2 | 2123 | } |
3d8fd385 | 2124 | } |
f800326d | 2125 | |
332d4a7d | 2126 | #endif /* IXGBE_FCOE */ |
8a0da21b | 2127 | ixgbe_rx_skb(q_vector, skb); |
9a799d71 | 2128 | |
f800326d | 2129 | /* update budget accounting */ |
f4de00ed | 2130 | total_rx_packets++; |
fdabfc8a | 2131 | } |
9a799d71 | 2132 | |
c267fc16 AD |
2133 | u64_stats_update_begin(&rx_ring->syncp); |
2134 | rx_ring->stats.packets += total_rx_packets; | |
2135 | rx_ring->stats.bytes += total_rx_bytes; | |
2136 | u64_stats_update_end(&rx_ring->syncp); | |
bd198058 AD |
2137 | q_vector->rx.total_packets += total_rx_packets; |
2138 | q_vector->rx.total_bytes += total_rx_bytes; | |
4ff7fb12 | 2139 | |
5a85e737 | 2140 | return total_rx_packets; |
9a799d71 AK |
2141 | } |
2142 | ||
e0d1095a | 2143 | #ifdef CONFIG_NET_RX_BUSY_POLL |
5a85e737 ET |
2144 | /* must be called with local_bh_disable()d */ |
2145 | static int ixgbe_low_latency_recv(struct napi_struct *napi) | |
2146 | { | |
2147 | struct ixgbe_q_vector *q_vector = | |
2148 | container_of(napi, struct ixgbe_q_vector, napi); | |
2149 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2150 | struct ixgbe_ring *ring; | |
2151 | int found = 0; | |
2152 | ||
2153 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
2154 | return LL_FLUSH_FAILED; | |
2155 | ||
2156 | if (!ixgbe_qv_lock_poll(q_vector)) | |
2157 | return LL_FLUSH_BUSY; | |
2158 | ||
2159 | ixgbe_for_each_ring(ring, q_vector->rx) { | |
2160 | found = ixgbe_clean_rx_irq(q_vector, ring, 4); | |
b4640030 | 2161 | #ifdef BP_EXTENDED_STATS |
7e15b90f ET |
2162 | if (found) |
2163 | ring->stats.cleaned += found; | |
2164 | else | |
2165 | ring->stats.misses++; | |
2166 | #endif | |
5a85e737 ET |
2167 | if (found) |
2168 | break; | |
2169 | } | |
2170 | ||
2171 | ixgbe_qv_unlock_poll(q_vector); | |
2172 | ||
2173 | return found; | |
2174 | } | |
e0d1095a | 2175 | #endif /* CONFIG_NET_RX_BUSY_POLL */ |
5a85e737 | 2176 | |
9a799d71 AK |
2177 | /** |
2178 | * ixgbe_configure_msix - Configure MSI-X hardware | |
2179 | * @adapter: board private structure | |
2180 | * | |
2181 | * ixgbe_configure_msix sets up the hardware to properly generate MSI-X | |
2182 | * interrupts. | |
2183 | **/ | |
2184 | static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) | |
2185 | { | |
021230d4 | 2186 | struct ixgbe_q_vector *q_vector; |
49c7ffbe | 2187 | int v_idx; |
021230d4 | 2188 | u32 mask; |
9a799d71 | 2189 | |
8e34d1aa AD |
2190 | /* Populate MSIX to EITR Select */ |
2191 | if (adapter->num_vfs > 32) { | |
2192 | u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; | |
2193 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel); | |
2194 | } | |
2195 | ||
4df10466 JB |
2196 | /* |
2197 | * Populate the IVAR table and set the ITR values to the | |
021230d4 AV |
2198 | * corresponding register. |
2199 | */ | |
49c7ffbe | 2200 | for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) { |
efe3d3c8 | 2201 | struct ixgbe_ring *ring; |
7a921c93 | 2202 | q_vector = adapter->q_vector[v_idx]; |
021230d4 | 2203 | |
a557928e | 2204 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 AD |
2205 | ixgbe_set_ivar(adapter, 0, ring->reg_idx, v_idx); |
2206 | ||
a557928e | 2207 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 AD |
2208 | ixgbe_set_ivar(adapter, 1, ring->reg_idx, v_idx); |
2209 | ||
fe49f04a | 2210 | ixgbe_write_eitr(q_vector); |
9a799d71 AK |
2211 | } |
2212 | ||
bd508178 AD |
2213 | switch (adapter->hw.mac.type) { |
2214 | case ixgbe_mac_82598EB: | |
e8e26350 | 2215 | ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, |
e8e9f696 | 2216 | v_idx); |
bd508178 AD |
2217 | break; |
2218 | case ixgbe_mac_82599EB: | |
b93a2226 | 2219 | case ixgbe_mac_X540: |
9a75a1ac DS |
2220 | case ixgbe_mac_X550: |
2221 | case ixgbe_mac_X550EM_x: | |
e8e26350 | 2222 | ixgbe_set_ivar(adapter, -1, 1, v_idx); |
bd508178 | 2223 | break; |
bd508178 AD |
2224 | default: |
2225 | break; | |
2226 | } | |
021230d4 AV |
2227 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); |
2228 | ||
41fb9248 | 2229 | /* set up to autoclear timer, and the vectors */ |
021230d4 | 2230 | mask = IXGBE_EIMS_ENABLE_MASK; |
d5bf4f67 ET |
2231 | mask &= ~(IXGBE_EIMS_OTHER | |
2232 | IXGBE_EIMS_MAILBOX | | |
2233 | IXGBE_EIMS_LSC); | |
2234 | ||
021230d4 | 2235 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, mask); |
9a799d71 AK |
2236 | } |
2237 | ||
f494e8fa AV |
2238 | enum latency_range { |
2239 | lowest_latency = 0, | |
2240 | low_latency = 1, | |
2241 | bulk_latency = 2, | |
2242 | latency_invalid = 255 | |
2243 | }; | |
2244 | ||
2245 | /** | |
2246 | * ixgbe_update_itr - update the dynamic ITR value based on statistics | |
bd198058 AD |
2247 | * @q_vector: structure containing interrupt and ring information |
2248 | * @ring_container: structure containing ring performance data | |
f494e8fa AV |
2249 | * |
2250 | * Stores a new ITR value based on packets and byte | |
2251 | * counts during the last interrupt. The advantage of per interrupt | |
2252 | * computation is faster updates and more accurate ITR for the current | |
2253 | * traffic pattern. Constants in this function were computed | |
2254 | * based on theoretical maximum wire speed and thresholds were set based | |
2255 | * on testing data as well as attempting to minimize response time | |
2256 | * while increasing bulk throughput. | |
2257 | * this functionality is controlled by the InterruptThrottleRate module | |
2258 | * parameter (see ixgbe_param.c) | |
2259 | **/ | |
bd198058 AD |
2260 | static void ixgbe_update_itr(struct ixgbe_q_vector *q_vector, |
2261 | struct ixgbe_ring_container *ring_container) | |
f494e8fa | 2262 | { |
bd198058 AD |
2263 | int bytes = ring_container->total_bytes; |
2264 | int packets = ring_container->total_packets; | |
2265 | u32 timepassed_us; | |
621bd70e | 2266 | u64 bytes_perint; |
bd198058 | 2267 | u8 itr_setting = ring_container->itr; |
f494e8fa AV |
2268 | |
2269 | if (packets == 0) | |
bd198058 | 2270 | return; |
f494e8fa AV |
2271 | |
2272 | /* simple throttlerate management | |
621bd70e AD |
2273 | * 0-10MB/s lowest (100000 ints/s) |
2274 | * 10-20MB/s low (20000 ints/s) | |
8ac34f10 | 2275 | * 20-1249MB/s bulk (12000 ints/s) |
f494e8fa AV |
2276 | */ |
2277 | /* what was last interrupt timeslice? */ | |
d5bf4f67 | 2278 | timepassed_us = q_vector->itr >> 2; |
bdbeefe8 DS |
2279 | if (timepassed_us == 0) |
2280 | return; | |
2281 | ||
f494e8fa AV |
2282 | bytes_perint = bytes / timepassed_us; /* bytes/usec */ |
2283 | ||
2284 | switch (itr_setting) { | |
2285 | case lowest_latency: | |
621bd70e | 2286 | if (bytes_perint > 10) |
bd198058 | 2287 | itr_setting = low_latency; |
f494e8fa AV |
2288 | break; |
2289 | case low_latency: | |
621bd70e | 2290 | if (bytes_perint > 20) |
bd198058 | 2291 | itr_setting = bulk_latency; |
621bd70e | 2292 | else if (bytes_perint <= 10) |
bd198058 | 2293 | itr_setting = lowest_latency; |
f494e8fa AV |
2294 | break; |
2295 | case bulk_latency: | |
621bd70e | 2296 | if (bytes_perint <= 20) |
bd198058 | 2297 | itr_setting = low_latency; |
f494e8fa AV |
2298 | break; |
2299 | } | |
2300 | ||
bd198058 AD |
2301 | /* clear work counters since we have the values we need */ |
2302 | ring_container->total_bytes = 0; | |
2303 | ring_container->total_packets = 0; | |
2304 | ||
2305 | /* write updated itr to ring container */ | |
2306 | ring_container->itr = itr_setting; | |
f494e8fa AV |
2307 | } |
2308 | ||
509ee935 JB |
2309 | /** |
2310 | * ixgbe_write_eitr - write EITR register in hardware specific way | |
fe49f04a | 2311 | * @q_vector: structure containing interrupt and ring information |
509ee935 JB |
2312 | * |
2313 | * This function is made to be called by ethtool and by the driver | |
2314 | * when it needs to update EITR registers at runtime. Hardware | |
2315 | * specific quirks/differences are taken care of here. | |
2316 | */ | |
fe49f04a | 2317 | void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) |
509ee935 | 2318 | { |
fe49f04a | 2319 | struct ixgbe_adapter *adapter = q_vector->adapter; |
509ee935 | 2320 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2321 | int v_idx = q_vector->v_idx; |
5d967eb7 | 2322 | u32 itr_reg = q_vector->itr & IXGBE_MAX_EITR; |
fe49f04a | 2323 | |
bd508178 AD |
2324 | switch (adapter->hw.mac.type) { |
2325 | case ixgbe_mac_82598EB: | |
509ee935 JB |
2326 | /* must write high and low 16 bits to reset counter */ |
2327 | itr_reg |= (itr_reg << 16); | |
bd508178 AD |
2328 | break; |
2329 | case ixgbe_mac_82599EB: | |
b93a2226 | 2330 | case ixgbe_mac_X540: |
9a75a1ac DS |
2331 | case ixgbe_mac_X550: |
2332 | case ixgbe_mac_X550EM_x: | |
509ee935 JB |
2333 | /* |
2334 | * set the WDIS bit to not clear the timer bits and cause an | |
2335 | * immediate assertion of the interrupt | |
2336 | */ | |
2337 | itr_reg |= IXGBE_EITR_CNT_WDIS; | |
bd508178 AD |
2338 | break; |
2339 | default: | |
2340 | break; | |
509ee935 JB |
2341 | } |
2342 | IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); | |
2343 | } | |
2344 | ||
bd198058 | 2345 | static void ixgbe_set_itr(struct ixgbe_q_vector *q_vector) |
f494e8fa | 2346 | { |
d5bf4f67 | 2347 | u32 new_itr = q_vector->itr; |
bd198058 | 2348 | u8 current_itr; |
f494e8fa | 2349 | |
bd198058 AD |
2350 | ixgbe_update_itr(q_vector, &q_vector->tx); |
2351 | ixgbe_update_itr(q_vector, &q_vector->rx); | |
f494e8fa | 2352 | |
08c8833b | 2353 | current_itr = max(q_vector->rx.itr, q_vector->tx.itr); |
f494e8fa AV |
2354 | |
2355 | switch (current_itr) { | |
2356 | /* counts and packets in update_itr are dependent on these numbers */ | |
2357 | case lowest_latency: | |
d5bf4f67 | 2358 | new_itr = IXGBE_100K_ITR; |
f494e8fa AV |
2359 | break; |
2360 | case low_latency: | |
d5bf4f67 | 2361 | new_itr = IXGBE_20K_ITR; |
f494e8fa AV |
2362 | break; |
2363 | case bulk_latency: | |
8ac34f10 | 2364 | new_itr = IXGBE_12K_ITR; |
f494e8fa | 2365 | break; |
bd198058 AD |
2366 | default: |
2367 | break; | |
f494e8fa AV |
2368 | } |
2369 | ||
d5bf4f67 | 2370 | if (new_itr != q_vector->itr) { |
fe49f04a | 2371 | /* do an exponential smoothing */ |
d5bf4f67 ET |
2372 | new_itr = (10 * new_itr * q_vector->itr) / |
2373 | ((9 * new_itr) + q_vector->itr); | |
509ee935 | 2374 | |
bd198058 | 2375 | /* save the algorithm value here */ |
5d967eb7 | 2376 | q_vector->itr = new_itr; |
fe49f04a AD |
2377 | |
2378 | ixgbe_write_eitr(q_vector); | |
f494e8fa | 2379 | } |
f494e8fa AV |
2380 | } |
2381 | ||
119fc60a | 2382 | /** |
de88eeeb | 2383 | * ixgbe_check_overtemp_subtask - check for over temperature |
f0f9778d | 2384 | * @adapter: pointer to adapter |
119fc60a | 2385 | **/ |
f0f9778d | 2386 | static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter) |
119fc60a | 2387 | { |
119fc60a MC |
2388 | struct ixgbe_hw *hw = &adapter->hw; |
2389 | u32 eicr = adapter->interrupt_event; | |
2390 | ||
f0f9778d | 2391 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
7ca647bd JP |
2392 | return; |
2393 | ||
f0f9778d AD |
2394 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
2395 | !(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_EVENT)) | |
2396 | return; | |
2397 | ||
2398 | adapter->flags2 &= ~IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2399 | ||
7ca647bd | 2400 | switch (hw->device_id) { |
f0f9778d AD |
2401 | case IXGBE_DEV_ID_82599_T3_LOM: |
2402 | /* | |
2403 | * Since the warning interrupt is for both ports | |
2404 | * we don't have to check if: | |
2405 | * - This interrupt wasn't for our port. | |
2406 | * - We may have missed the interrupt so always have to | |
2407 | * check if we got a LSC | |
2408 | */ | |
9a900eca | 2409 | if (!(eicr & IXGBE_EICR_GPI_SDP0_8259X) && |
f0f9778d AD |
2410 | !(eicr & IXGBE_EICR_LSC)) |
2411 | return; | |
2412 | ||
2413 | if (!(eicr & IXGBE_EICR_LSC) && hw->mac.ops.check_link) { | |
3d292265 | 2414 | u32 speed; |
f0f9778d | 2415 | bool link_up = false; |
7ca647bd | 2416 | |
3d292265 | 2417 | hw->mac.ops.check_link(hw, &speed, &link_up, false); |
7ca647bd | 2418 | |
f0f9778d AD |
2419 | if (link_up) |
2420 | return; | |
2421 | } | |
2422 | ||
2423 | /* Check if this is not due to overtemp */ | |
2424 | if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP) | |
2425 | return; | |
2426 | ||
2427 | break; | |
7ca647bd | 2428 | default: |
597f22d6 DS |
2429 | if (adapter->hw.mac.type >= ixgbe_mac_X540) |
2430 | return; | |
9a900eca | 2431 | if (!(eicr & IXGBE_EICR_GPI_SDP0(hw))) |
119fc60a | 2432 | return; |
7ca647bd | 2433 | break; |
119fc60a | 2434 | } |
f44e751b | 2435 | e_crit(drv, "%s\n", ixgbe_overheat_msg); |
f0f9778d AD |
2436 | |
2437 | adapter->interrupt_event = 0; | |
119fc60a MC |
2438 | } |
2439 | ||
0befdb3e JB |
2440 | static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) |
2441 | { | |
2442 | struct ixgbe_hw *hw = &adapter->hw; | |
2443 | ||
2444 | if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) && | |
9a900eca | 2445 | (eicr & IXGBE_EICR_GPI_SDP1(hw))) { |
396e799c | 2446 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
0befdb3e | 2447 | /* write to clear the interrupt */ |
9a900eca | 2448 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1(hw)); |
0befdb3e JB |
2449 | } |
2450 | } | |
cf8280ee | 2451 | |
4f51bf70 JK |
2452 | static void ixgbe_check_overtemp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2453 | { | |
9a900eca DS |
2454 | struct ixgbe_hw *hw = &adapter->hw; |
2455 | ||
4f51bf70 JK |
2456 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) |
2457 | return; | |
2458 | ||
2459 | switch (adapter->hw.mac.type) { | |
2460 | case ixgbe_mac_82599EB: | |
2461 | /* | |
2462 | * Need to check link state so complete overtemp check | |
2463 | * on service task | |
2464 | */ | |
9a900eca DS |
2465 | if (((eicr & IXGBE_EICR_GPI_SDP0(hw)) || |
2466 | (eicr & IXGBE_EICR_LSC)) && | |
4f51bf70 JK |
2467 | (!test_bit(__IXGBE_DOWN, &adapter->state))) { |
2468 | adapter->interrupt_event = eicr; | |
2469 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2470 | ixgbe_service_event_schedule(adapter); | |
2471 | return; | |
2472 | } | |
2473 | return; | |
2474 | case ixgbe_mac_X540: | |
2475 | if (!(eicr & IXGBE_EICR_TS)) | |
2476 | return; | |
2477 | break; | |
2478 | default: | |
2479 | return; | |
2480 | } | |
2481 | ||
f44e751b | 2482 | e_crit(drv, "%s\n", ixgbe_overheat_msg); |
4f51bf70 JK |
2483 | } |
2484 | ||
45788d2a DS |
2485 | static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) |
2486 | { | |
2487 | switch (hw->mac.type) { | |
2488 | case ixgbe_mac_82598EB: | |
2489 | if (hw->phy.type == ixgbe_phy_nl) | |
2490 | return true; | |
2491 | return false; | |
2492 | case ixgbe_mac_82599EB: | |
2493 | case ixgbe_mac_X550EM_x: | |
2494 | switch (hw->mac.ops.get_media_type(hw)) { | |
2495 | case ixgbe_media_type_fiber: | |
2496 | case ixgbe_media_type_fiber_qsfp: | |
2497 | return true; | |
2498 | default: | |
2499 | return false; | |
2500 | } | |
2501 | default: | |
2502 | return false; | |
2503 | } | |
2504 | } | |
2505 | ||
e8e26350 PW |
2506 | static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2507 | { | |
2508 | struct ixgbe_hw *hw = &adapter->hw; | |
4ccc650c | 2509 | u32 eicr_mask = IXGBE_EICR_GPI_SDP2(hw); |
e8e26350 | 2510 | |
4ccc650c DS |
2511 | if (!ixgbe_is_sfp(hw)) |
2512 | return; | |
2513 | ||
2514 | /* Later MAC's use different SDP */ | |
2515 | if (hw->mac.type >= ixgbe_mac_X540) | |
2516 | eicr_mask = IXGBE_EICR_GPI_SDP0_X540; | |
2517 | ||
2518 | if (eicr & eicr_mask) { | |
73c4b7cd | 2519 | /* Clear the interrupt */ |
4ccc650c | 2520 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr_mask); |
7086400d AD |
2521 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2522 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
58e7cd24 | 2523 | adapter->sfp_poll_time = 0; |
7086400d AD |
2524 | ixgbe_service_event_schedule(adapter); |
2525 | } | |
73c4b7cd AD |
2526 | } |
2527 | ||
4ccc650c DS |
2528 | if (adapter->hw.mac.type == ixgbe_mac_82599EB && |
2529 | (eicr & IXGBE_EICR_GPI_SDP1(hw))) { | |
e8e26350 | 2530 | /* Clear the interrupt */ |
9a900eca | 2531 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1(hw)); |
7086400d AD |
2532 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2533 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
2534 | ixgbe_service_event_schedule(adapter); | |
2535 | } | |
e8e26350 PW |
2536 | } |
2537 | } | |
2538 | ||
cf8280ee JB |
2539 | static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) |
2540 | { | |
2541 | struct ixgbe_hw *hw = &adapter->hw; | |
2542 | ||
2543 | adapter->lsc_int++; | |
2544 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
2545 | adapter->link_check_timeout = jiffies; | |
2546 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
2547 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC); | |
8a0717f3 | 2548 | IXGBE_WRITE_FLUSH(hw); |
93c52dd0 | 2549 | ixgbe_service_event_schedule(adapter); |
cf8280ee JB |
2550 | } |
2551 | } | |
2552 | ||
fe49f04a AD |
2553 | static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter, |
2554 | u64 qmask) | |
2555 | { | |
2556 | u32 mask; | |
bd508178 | 2557 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2558 | |
bd508178 AD |
2559 | switch (hw->mac.type) { |
2560 | case ixgbe_mac_82598EB: | |
fe49f04a | 2561 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2562 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask); |
2563 | break; | |
2564 | case ixgbe_mac_82599EB: | |
b93a2226 | 2565 | case ixgbe_mac_X540: |
9a75a1ac DS |
2566 | case ixgbe_mac_X550: |
2567 | case ixgbe_mac_X550EM_x: | |
fe49f04a | 2568 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2569 | if (mask) |
2570 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(0), mask); | |
fe49f04a | 2571 | mask = (qmask >> 32); |
bd508178 AD |
2572 | if (mask) |
2573 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(1), mask); | |
2574 | break; | |
2575 | default: | |
2576 | break; | |
fe49f04a AD |
2577 | } |
2578 | /* skip the flush */ | |
2579 | } | |
2580 | ||
2581 | static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter, | |
e8e9f696 | 2582 | u64 qmask) |
fe49f04a AD |
2583 | { |
2584 | u32 mask; | |
bd508178 | 2585 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2586 | |
bd508178 AD |
2587 | switch (hw->mac.type) { |
2588 | case ixgbe_mac_82598EB: | |
fe49f04a | 2589 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2590 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, mask); |
2591 | break; | |
2592 | case ixgbe_mac_82599EB: | |
b93a2226 | 2593 | case ixgbe_mac_X540: |
9a75a1ac DS |
2594 | case ixgbe_mac_X550: |
2595 | case ixgbe_mac_X550EM_x: | |
fe49f04a | 2596 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2597 | if (mask) |
2598 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(0), mask); | |
fe49f04a | 2599 | mask = (qmask >> 32); |
bd508178 AD |
2600 | if (mask) |
2601 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(1), mask); | |
2602 | break; | |
2603 | default: | |
2604 | break; | |
fe49f04a AD |
2605 | } |
2606 | /* skip the flush */ | |
2607 | } | |
2608 | ||
021230d4 | 2609 | /** |
2c4af694 AD |
2610 | * ixgbe_irq_enable - Enable default interrupt generation settings |
2611 | * @adapter: board private structure | |
021230d4 | 2612 | **/ |
2c4af694 AD |
2613 | static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues, |
2614 | bool flush) | |
9a799d71 | 2615 | { |
9a900eca | 2616 | struct ixgbe_hw *hw = &adapter->hw; |
2c4af694 | 2617 | u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); |
9a799d71 | 2618 | |
2c4af694 AD |
2619 | /* don't reenable LSC while waiting for link */ |
2620 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
2621 | mask &= ~IXGBE_EIMS_LSC; | |
9a799d71 | 2622 | |
2c4af694 | 2623 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
4f51bf70 JK |
2624 | switch (adapter->hw.mac.type) { |
2625 | case ixgbe_mac_82599EB: | |
9a900eca | 2626 | mask |= IXGBE_EIMS_GPI_SDP0(hw); |
4f51bf70 JK |
2627 | break; |
2628 | case ixgbe_mac_X540: | |
9a75a1ac DS |
2629 | case ixgbe_mac_X550: |
2630 | case ixgbe_mac_X550EM_x: | |
4f51bf70 JK |
2631 | mask |= IXGBE_EIMS_TS; |
2632 | break; | |
2633 | default: | |
2634 | break; | |
2635 | } | |
2c4af694 | 2636 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
9a900eca | 2637 | mask |= IXGBE_EIMS_GPI_SDP1(hw); |
2c4af694 AD |
2638 | switch (adapter->hw.mac.type) { |
2639 | case ixgbe_mac_82599EB: | |
9a900eca DS |
2640 | mask |= IXGBE_EIMS_GPI_SDP1(hw); |
2641 | mask |= IXGBE_EIMS_GPI_SDP2(hw); | |
9a75a1ac | 2642 | /* fall through */ |
858bc081 | 2643 | case ixgbe_mac_X540: |
9a75a1ac DS |
2644 | case ixgbe_mac_X550: |
2645 | case ixgbe_mac_X550EM_x: | |
cbd45ec7 MR |
2646 | if (adapter->hw.device_id == IXGBE_DEV_ID_X550EM_X_SFP) |
2647 | mask |= IXGBE_EIMS_GPI_SDP0(&adapter->hw); | |
597f22d6 DS |
2648 | if (adapter->hw.phy.type == ixgbe_phy_x550em_ext_t) |
2649 | mask |= IXGBE_EICR_GPI_SDP0_X540; | |
858bc081 | 2650 | mask |= IXGBE_EIMS_ECC; |
2c4af694 AD |
2651 | mask |= IXGBE_EIMS_MAILBOX; |
2652 | break; | |
2653 | default: | |
2654 | break; | |
9a799d71 | 2655 | } |
db0677fa | 2656 | |
2c4af694 AD |
2657 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) && |
2658 | !(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) | |
2659 | mask |= IXGBE_EIMS_FLOW_DIR; | |
9a799d71 | 2660 | |
2c4af694 AD |
2661 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
2662 | if (queues) | |
2663 | ixgbe_irq_enable_queues(adapter, ~0); | |
2664 | if (flush) | |
2665 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
9a799d71 AK |
2666 | } |
2667 | ||
2c4af694 | 2668 | static irqreturn_t ixgbe_msix_other(int irq, void *data) |
f0848276 | 2669 | { |
a65151ba | 2670 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2671 | struct ixgbe_hw *hw = &adapter->hw; |
54037505 | 2672 | u32 eicr; |
91281fd3 | 2673 | |
54037505 DS |
2674 | /* |
2675 | * Workaround for Silicon errata. Use clear-by-write instead | |
2676 | * of clear-by-read. Reading with EICS will return the | |
2677 | * interrupt causes without clearing, which later be done | |
2678 | * with the write to EICR. | |
2679 | */ | |
2680 | eicr = IXGBE_READ_REG(hw, IXGBE_EICS); | |
d87d8307 JK |
2681 | |
2682 | /* The lower 16bits of the EICR register are for the queue interrupts | |
dbedd44e | 2683 | * which should be masked here in order to not accidentally clear them if |
d87d8307 JK |
2684 | * the bits are high when ixgbe_msix_other is called. There is a race |
2685 | * condition otherwise which results in possible performance loss | |
2686 | * especially if the ixgbe_msix_other interrupt is triggering | |
2687 | * consistently (as it would when PPS is turned on for the X540 device) | |
2688 | */ | |
2689 | eicr &= 0xFFFF0000; | |
2690 | ||
54037505 | 2691 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); |
33cf09c9 | 2692 | |
cf8280ee JB |
2693 | if (eicr & IXGBE_EICR_LSC) |
2694 | ixgbe_check_lsc(adapter); | |
f0848276 | 2695 | |
1cdd1ec8 GR |
2696 | if (eicr & IXGBE_EICR_MAILBOX) |
2697 | ixgbe_msg_task(adapter); | |
efe3d3c8 | 2698 | |
bd508178 AD |
2699 | switch (hw->mac.type) { |
2700 | case ixgbe_mac_82599EB: | |
b93a2226 | 2701 | case ixgbe_mac_X540: |
9a75a1ac DS |
2702 | case ixgbe_mac_X550: |
2703 | case ixgbe_mac_X550EM_x: | |
597f22d6 DS |
2704 | if (hw->phy.type == ixgbe_phy_x550em_ext_t && |
2705 | (eicr & IXGBE_EICR_GPI_SDP0_X540)) { | |
2706 | adapter->flags2 |= IXGBE_FLAG2_PHY_INTERRUPT; | |
2707 | ixgbe_service_event_schedule(adapter); | |
2708 | IXGBE_WRITE_REG(hw, IXGBE_EICR, | |
2709 | IXGBE_EICR_GPI_SDP0_X540); | |
2710 | } | |
d773ce2d DS |
2711 | if (eicr & IXGBE_EICR_ECC) { |
2712 | e_info(link, "Received ECC Err, initiating reset\n"); | |
2713 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
2714 | ixgbe_service_event_schedule(adapter); | |
2715 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_ECC); | |
2716 | } | |
c4cf55e5 PWJ |
2717 | /* Handle Flow Director Full threshold interrupt */ |
2718 | if (eicr & IXGBE_EICR_FLOW_DIR) { | |
d034acf1 | 2719 | int reinit_count = 0; |
c4cf55e5 | 2720 | int i; |
c4cf55e5 | 2721 | for (i = 0; i < adapter->num_tx_queues; i++) { |
d034acf1 | 2722 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
7d637bcc | 2723 | if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE, |
d034acf1 AD |
2724 | &ring->state)) |
2725 | reinit_count++; | |
2726 | } | |
2727 | if (reinit_count) { | |
2728 | /* no more flow director interrupts until after init */ | |
2729 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_FLOW_DIR); | |
d034acf1 AD |
2730 | adapter->flags2 |= IXGBE_FLAG2_FDIR_REQUIRES_REINIT; |
2731 | ixgbe_service_event_schedule(adapter); | |
c4cf55e5 PWJ |
2732 | } |
2733 | } | |
f0f9778d | 2734 | ixgbe_check_sfp_event(adapter, eicr); |
4f51bf70 | 2735 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2736 | break; |
2737 | default: | |
2738 | break; | |
c4cf55e5 | 2739 | } |
f0848276 | 2740 | |
bd508178 | 2741 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa | 2742 | |
db0677fa | 2743 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
a9763f3c | 2744 | ixgbe_ptp_check_pps_event(adapter); |
efe3d3c8 | 2745 | |
7086400d | 2746 | /* re-enable the original interrupt state, no lsc, no queues */ |
d4f80882 | 2747 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2c4af694 | 2748 | ixgbe_irq_enable(adapter, false, false); |
f0848276 | 2749 | |
9a799d71 | 2750 | return IRQ_HANDLED; |
f0848276 | 2751 | } |
91281fd3 | 2752 | |
4ff7fb12 | 2753 | static irqreturn_t ixgbe_msix_clean_rings(int irq, void *data) |
91281fd3 | 2754 | { |
021230d4 | 2755 | struct ixgbe_q_vector *q_vector = data; |
91281fd3 | 2756 | |
9b471446 | 2757 | /* EIAM disabled interrupts (on this vector) for us */ |
91281fd3 | 2758 | |
4ff7fb12 | 2759 | if (q_vector->rx.ring || q_vector->tx.ring) |
ef2662b2 | 2760 | napi_schedule_irqoff(&q_vector->napi); |
91281fd3 | 2761 | |
9a799d71 | 2762 | return IRQ_HANDLED; |
91281fd3 AD |
2763 | } |
2764 | ||
eb01b975 AD |
2765 | /** |
2766 | * ixgbe_poll - NAPI Rx polling callback | |
2767 | * @napi: structure for representing this polling device | |
2768 | * @budget: how many packets driver is allowed to clean | |
2769 | * | |
2770 | * This function is used for legacy and MSI, NAPI mode | |
2771 | **/ | |
8af3c33f | 2772 | int ixgbe_poll(struct napi_struct *napi, int budget) |
eb01b975 AD |
2773 | { |
2774 | struct ixgbe_q_vector *q_vector = | |
2775 | container_of(napi, struct ixgbe_q_vector, napi); | |
2776 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2777 | struct ixgbe_ring *ring; | |
32b3e08f | 2778 | int per_ring_budget, work_done = 0; |
eb01b975 AD |
2779 | bool clean_complete = true; |
2780 | ||
2781 | #ifdef CONFIG_IXGBE_DCA | |
2782 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
2783 | ixgbe_update_dca(q_vector); | |
2784 | #endif | |
2785 | ||
2786 | ixgbe_for_each_ring(ring, q_vector->tx) | |
2787 | clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring); | |
2788 | ||
5d6002b7 AD |
2789 | /* Exit if we are called by netpoll or busy polling is active */ |
2790 | if ((budget <= 0) || !ixgbe_qv_lock_napi(q_vector)) | |
5a85e737 ET |
2791 | return budget; |
2792 | ||
eb01b975 AD |
2793 | /* attempt to distribute budget to each queue fairly, but don't allow |
2794 | * the budget to go below 1 because we'll exit polling */ | |
2795 | if (q_vector->rx.count > 1) | |
2796 | per_ring_budget = max(budget/q_vector->rx.count, 1); | |
2797 | else | |
2798 | per_ring_budget = budget; | |
2799 | ||
32b3e08f JB |
2800 | ixgbe_for_each_ring(ring, q_vector->rx) { |
2801 | int cleaned = ixgbe_clean_rx_irq(q_vector, ring, | |
2802 | per_ring_budget); | |
2803 | ||
2804 | work_done += cleaned; | |
2805 | clean_complete &= (cleaned < per_ring_budget); | |
2806 | } | |
eb01b975 | 2807 | |
5a85e737 | 2808 | ixgbe_qv_unlock_napi(q_vector); |
eb01b975 AD |
2809 | /* If all work not completed, return budget and keep polling */ |
2810 | if (!clean_complete) | |
2811 | return budget; | |
2812 | ||
2813 | /* all work done, exit the polling mode */ | |
32b3e08f | 2814 | napi_complete_done(napi, work_done); |
eb01b975 AD |
2815 | if (adapter->rx_itr_setting & 1) |
2816 | ixgbe_set_itr(q_vector); | |
2817 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2818 | ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx)); | |
2819 | ||
2820 | return 0; | |
2821 | } | |
2822 | ||
021230d4 AV |
2823 | /** |
2824 | * ixgbe_request_msix_irqs - Initialize MSI-X interrupts | |
2825 | * @adapter: board private structure | |
2826 | * | |
2827 | * ixgbe_request_msix_irqs allocates MSI-X vectors and requests | |
2828 | * interrupts from the kernel. | |
2829 | **/ | |
2830 | static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter) | |
2831 | { | |
2832 | struct net_device *netdev = adapter->netdev; | |
207867f5 | 2833 | int vector, err; |
e8e9f696 | 2834 | int ri = 0, ti = 0; |
021230d4 | 2835 | |
49c7ffbe | 2836 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
d0759ebb | 2837 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; |
207867f5 | 2838 | struct msix_entry *entry = &adapter->msix_entries[vector]; |
cb13fc20 | 2839 | |
4ff7fb12 | 2840 | if (q_vector->tx.ring && q_vector->rx.ring) { |
9fe93afd | 2841 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2842 | "%s-%s-%d", netdev->name, "TxRx", ri++); |
2843 | ti++; | |
2844 | } else if (q_vector->rx.ring) { | |
9fe93afd | 2845 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2846 | "%s-%s-%d", netdev->name, "rx", ri++); |
2847 | } else if (q_vector->tx.ring) { | |
9fe93afd | 2848 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 | 2849 | "%s-%s-%d", netdev->name, "tx", ti++); |
d0759ebb AD |
2850 | } else { |
2851 | /* skip this unused q_vector */ | |
2852 | continue; | |
32aa77a4 | 2853 | } |
207867f5 AD |
2854 | err = request_irq(entry->vector, &ixgbe_msix_clean_rings, 0, |
2855 | q_vector->name, q_vector); | |
9a799d71 | 2856 | if (err) { |
396e799c | 2857 | e_err(probe, "request_irq failed for MSIX interrupt " |
849c4542 | 2858 | "Error: %d\n", err); |
021230d4 | 2859 | goto free_queue_irqs; |
9a799d71 | 2860 | } |
207867f5 AD |
2861 | /* If Flow Director is enabled, set interrupt affinity */ |
2862 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { | |
2863 | /* assign the mask for this irq */ | |
2864 | irq_set_affinity_hint(entry->vector, | |
de88eeeb | 2865 | &q_vector->affinity_mask); |
207867f5 | 2866 | } |
9a799d71 AK |
2867 | } |
2868 | ||
021230d4 | 2869 | err = request_irq(adapter->msix_entries[vector].vector, |
2c4af694 | 2870 | ixgbe_msix_other, 0, netdev->name, adapter); |
9a799d71 | 2871 | if (err) { |
de88eeeb | 2872 | e_err(probe, "request_irq for msix_other failed: %d\n", err); |
021230d4 | 2873 | goto free_queue_irqs; |
9a799d71 AK |
2874 | } |
2875 | ||
9a799d71 AK |
2876 | return 0; |
2877 | ||
021230d4 | 2878 | free_queue_irqs: |
207867f5 AD |
2879 | while (vector) { |
2880 | vector--; | |
2881 | irq_set_affinity_hint(adapter->msix_entries[vector].vector, | |
2882 | NULL); | |
2883 | free_irq(adapter->msix_entries[vector].vector, | |
2884 | adapter->q_vector[vector]); | |
2885 | } | |
021230d4 AV |
2886 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
2887 | pci_disable_msix(adapter->pdev); | |
9a799d71 AK |
2888 | kfree(adapter->msix_entries); |
2889 | adapter->msix_entries = NULL; | |
9a799d71 AK |
2890 | return err; |
2891 | } | |
2892 | ||
2893 | /** | |
021230d4 | 2894 | * ixgbe_intr - legacy mode Interrupt Handler |
9a799d71 AK |
2895 | * @irq: interrupt number |
2896 | * @data: pointer to a network interface device structure | |
9a799d71 AK |
2897 | **/ |
2898 | static irqreturn_t ixgbe_intr(int irq, void *data) | |
2899 | { | |
a65151ba | 2900 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2901 | struct ixgbe_hw *hw = &adapter->hw; |
7a921c93 | 2902 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 AK |
2903 | u32 eicr; |
2904 | ||
54037505 | 2905 | /* |
24ddd967 | 2906 | * Workaround for silicon errata #26 on 82598. Mask the interrupt |
54037505 DS |
2907 | * before the read of EICR. |
2908 | */ | |
2909 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); | |
2910 | ||
021230d4 | 2911 | /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read |
52f33af8 | 2912 | * therefore no explicit interrupt disable is necessary */ |
021230d4 | 2913 | eicr = IXGBE_READ_REG(hw, IXGBE_EICR); |
f47cf66e | 2914 | if (!eicr) { |
6af3b9eb ET |
2915 | /* |
2916 | * shared interrupt alert! | |
f47cf66e | 2917 | * make sure interrupts are enabled because the read will |
6af3b9eb ET |
2918 | * have disabled interrupts due to EIAM |
2919 | * finish the workaround of silicon errata on 82598. Unmask | |
2920 | * the interrupt that we masked before the EICR read. | |
2921 | */ | |
2922 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2923 | ixgbe_irq_enable(adapter, true, true); | |
9a799d71 | 2924 | return IRQ_NONE; /* Not our interrupt */ |
f47cf66e | 2925 | } |
9a799d71 | 2926 | |
cf8280ee JB |
2927 | if (eicr & IXGBE_EICR_LSC) |
2928 | ixgbe_check_lsc(adapter); | |
021230d4 | 2929 | |
bd508178 AD |
2930 | switch (hw->mac.type) { |
2931 | case ixgbe_mac_82599EB: | |
e8e26350 | 2932 | ixgbe_check_sfp_event(adapter, eicr); |
0ccb974d DS |
2933 | /* Fall through */ |
2934 | case ixgbe_mac_X540: | |
9a75a1ac DS |
2935 | case ixgbe_mac_X550: |
2936 | case ixgbe_mac_X550EM_x: | |
d773ce2d DS |
2937 | if (eicr & IXGBE_EICR_ECC) { |
2938 | e_info(link, "Received ECC Err, initiating reset\n"); | |
2939 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
2940 | ixgbe_service_event_schedule(adapter); | |
2941 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_ECC); | |
2942 | } | |
4f51bf70 | 2943 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2944 | break; |
2945 | default: | |
2946 | break; | |
2947 | } | |
e8e26350 | 2948 | |
0befdb3e | 2949 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa | 2950 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
a9763f3c | 2951 | ixgbe_ptp_check_pps_event(adapter); |
0befdb3e | 2952 | |
b9f6ed2b | 2953 | /* would disable interrupts here but EIAM disabled it */ |
ef2662b2 | 2954 | napi_schedule_irqoff(&q_vector->napi); |
9a799d71 | 2955 | |
6af3b9eb ET |
2956 | /* |
2957 | * re-enable link(maybe) and non-queue interrupts, no flush. | |
2958 | * ixgbe_poll will re-enable the queue interrupts | |
2959 | */ | |
6af3b9eb ET |
2960 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2961 | ixgbe_irq_enable(adapter, false, false); | |
2962 | ||
9a799d71 AK |
2963 | return IRQ_HANDLED; |
2964 | } | |
2965 | ||
2966 | /** | |
2967 | * ixgbe_request_irq - initialize interrupts | |
2968 | * @adapter: board private structure | |
2969 | * | |
2970 | * Attempts to configure interrupts using the best available | |
2971 | * capabilities of the hardware and kernel. | |
2972 | **/ | |
021230d4 | 2973 | static int ixgbe_request_irq(struct ixgbe_adapter *adapter) |
9a799d71 AK |
2974 | { |
2975 | struct net_device *netdev = adapter->netdev; | |
021230d4 | 2976 | int err; |
9a799d71 | 2977 | |
4cc6df29 | 2978 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
021230d4 | 2979 | err = ixgbe_request_msix_irqs(adapter); |
4cc6df29 | 2980 | else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) |
a0607fd3 | 2981 | err = request_irq(adapter->pdev->irq, ixgbe_intr, 0, |
a65151ba | 2982 | netdev->name, adapter); |
4cc6df29 | 2983 | else |
a0607fd3 | 2984 | err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED, |
a65151ba | 2985 | netdev->name, adapter); |
9a799d71 | 2986 | |
de88eeeb | 2987 | if (err) |
396e799c | 2988 | e_err(probe, "request_irq failed, Error %d\n", err); |
9a799d71 | 2989 | |
9a799d71 AK |
2990 | return err; |
2991 | } | |
2992 | ||
2993 | static void ixgbe_free_irq(struct ixgbe_adapter *adapter) | |
2994 | { | |
49c7ffbe | 2995 | int vector; |
9a799d71 | 2996 | |
49c7ffbe AD |
2997 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
2998 | free_irq(adapter->pdev->irq, adapter); | |
2999 | return; | |
3000 | } | |
4cc6df29 | 3001 | |
49c7ffbe AD |
3002 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
3003 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; | |
3004 | struct msix_entry *entry = &adapter->msix_entries[vector]; | |
894ff7cf | 3005 | |
49c7ffbe AD |
3006 | /* free only the irqs that were actually requested */ |
3007 | if (!q_vector->rx.ring && !q_vector->tx.ring) | |
3008 | continue; | |
207867f5 | 3009 | |
49c7ffbe AD |
3010 | /* clear the affinity_mask in the IRQ descriptor */ |
3011 | irq_set_affinity_hint(entry->vector, NULL); | |
3012 | ||
3013 | free_irq(entry->vector, q_vector); | |
9a799d71 | 3014 | } |
49c7ffbe AD |
3015 | |
3016 | free_irq(adapter->msix_entries[vector++].vector, adapter); | |
9a799d71 AK |
3017 | } |
3018 | ||
22d5a71b JB |
3019 | /** |
3020 | * ixgbe_irq_disable - Mask off interrupt generation on the NIC | |
3021 | * @adapter: board private structure | |
3022 | **/ | |
3023 | static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) | |
3024 | { | |
bd508178 AD |
3025 | switch (adapter->hw.mac.type) { |
3026 | case ixgbe_mac_82598EB: | |
835462fc | 3027 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); |
bd508178 AD |
3028 | break; |
3029 | case ixgbe_mac_82599EB: | |
b93a2226 | 3030 | case ixgbe_mac_X540: |
9a75a1ac DS |
3031 | case ixgbe_mac_X550: |
3032 | case ixgbe_mac_X550EM_x: | |
835462fc NS |
3033 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000); |
3034 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0); | |
22d5a71b | 3035 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); |
bd508178 AD |
3036 | break; |
3037 | default: | |
3038 | break; | |
22d5a71b JB |
3039 | } |
3040 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
3041 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
49c7ffbe AD |
3042 | int vector; |
3043 | ||
3044 | for (vector = 0; vector < adapter->num_q_vectors; vector++) | |
3045 | synchronize_irq(adapter->msix_entries[vector].vector); | |
3046 | ||
3047 | synchronize_irq(adapter->msix_entries[vector++].vector); | |
22d5a71b JB |
3048 | } else { |
3049 | synchronize_irq(adapter->pdev->irq); | |
3050 | } | |
3051 | } | |
3052 | ||
9a799d71 AK |
3053 | /** |
3054 | * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts | |
3055 | * | |
3056 | **/ | |
3057 | static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) | |
3058 | { | |
d5bf4f67 | 3059 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 | 3060 | |
d5bf4f67 | 3061 | ixgbe_write_eitr(q_vector); |
9a799d71 | 3062 | |
e8e26350 PW |
3063 | ixgbe_set_ivar(adapter, 0, 0, 0); |
3064 | ixgbe_set_ivar(adapter, 1, 0, 0); | |
021230d4 | 3065 | |
396e799c | 3066 | e_info(hw, "Legacy interrupt IVAR setup done\n"); |
9a799d71 AK |
3067 | } |
3068 | ||
43e69bf0 AD |
3069 | /** |
3070 | * ixgbe_configure_tx_ring - Configure 8259x Tx ring after Reset | |
3071 | * @adapter: board private structure | |
3072 | * @ring: structure containing ring specific data | |
3073 | * | |
3074 | * Configure the Tx descriptor ring after a reset. | |
3075 | **/ | |
84418e3b AD |
3076 | void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter, |
3077 | struct ixgbe_ring *ring) | |
43e69bf0 AD |
3078 | { |
3079 | struct ixgbe_hw *hw = &adapter->hw; | |
3080 | u64 tdba = ring->dma; | |
2f1860b8 | 3081 | int wait_loop = 10; |
b88c6de2 | 3082 | u32 txdctl = IXGBE_TXDCTL_ENABLE; |
bf29ee6c | 3083 | u8 reg_idx = ring->reg_idx; |
43e69bf0 | 3084 | |
2f1860b8 | 3085 | /* disable queue to avoid issues while updating state */ |
b88c6de2 | 3086 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), 0); |
2f1860b8 AD |
3087 | IXGBE_WRITE_FLUSH(hw); |
3088 | ||
43e69bf0 | 3089 | IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx), |
e8e9f696 | 3090 | (tdba & DMA_BIT_MASK(32))); |
43e69bf0 AD |
3091 | IXGBE_WRITE_REG(hw, IXGBE_TDBAH(reg_idx), (tdba >> 32)); |
3092 | IXGBE_WRITE_REG(hw, IXGBE_TDLEN(reg_idx), | |
3093 | ring->count * sizeof(union ixgbe_adv_tx_desc)); | |
3094 | IXGBE_WRITE_REG(hw, IXGBE_TDH(reg_idx), 0); | |
3095 | IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0); | |
2a1a091c | 3096 | ring->tail = adapter->io_addr + IXGBE_TDT(reg_idx); |
43e69bf0 | 3097 | |
b88c6de2 AD |
3098 | /* |
3099 | * set WTHRESH to encourage burst writeback, it should not be set | |
67da097e ET |
3100 | * higher than 1 when: |
3101 | * - ITR is 0 as it could cause false TX hangs | |
3102 | * - ITR is set to > 100k int/sec and BQL is enabled | |
b88c6de2 AD |
3103 | * |
3104 | * In order to avoid issues WTHRESH + PTHRESH should always be equal | |
3105 | * to or less than the number of on chip descriptors, which is | |
3106 | * currently 40. | |
3107 | */ | |
67da097e | 3108 | if (!ring->q_vector || (ring->q_vector->itr < IXGBE_100K_ITR)) |
b88c6de2 AD |
3109 | txdctl |= (1 << 16); /* WTHRESH = 1 */ |
3110 | else | |
3111 | txdctl |= (8 << 16); /* WTHRESH = 8 */ | |
3112 | ||
e954b374 AD |
3113 | /* |
3114 | * Setting PTHRESH to 32 both improves performance | |
3115 | * and avoids a TX hang with DFP enabled | |
3116 | */ | |
b88c6de2 AD |
3117 | txdctl |= (1 << 8) | /* HTHRESH = 1 */ |
3118 | 32; /* PTHRESH = 32 */ | |
2f1860b8 AD |
3119 | |
3120 | /* reinitialize flowdirector state */ | |
39cb681b | 3121 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
ee9e0f0b AD |
3122 | ring->atr_sample_rate = adapter->atr_sample_rate; |
3123 | ring->atr_count = 0; | |
3124 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, &ring->state); | |
3125 | } else { | |
3126 | ring->atr_sample_rate = 0; | |
3127 | } | |
2f1860b8 | 3128 | |
fd786b7b AD |
3129 | /* initialize XPS */ |
3130 | if (!test_and_set_bit(__IXGBE_TX_XPS_INIT_DONE, &ring->state)) { | |
3131 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
3132 | ||
3133 | if (q_vector) | |
2a47fa45 | 3134 | netif_set_xps_queue(ring->netdev, |
fd786b7b AD |
3135 | &q_vector->affinity_mask, |
3136 | ring->queue_index); | |
3137 | } | |
3138 | ||
c84d324c JF |
3139 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &ring->state); |
3140 | ||
2f1860b8 | 3141 | /* enable queue */ |
2f1860b8 AD |
3142 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl); |
3143 | ||
3144 | /* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */ | |
3145 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3146 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3147 | return; | |
3148 | ||
3149 | /* poll to verify queue is enabled */ | |
3150 | do { | |
032b4325 | 3151 | usleep_range(1000, 2000); |
2f1860b8 AD |
3152 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
3153 | } while (--wait_loop && !(txdctl & IXGBE_TXDCTL_ENABLE)); | |
3154 | if (!wait_loop) | |
3155 | e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); | |
43e69bf0 AD |
3156 | } |
3157 | ||
120ff942 AD |
3158 | static void ixgbe_setup_mtqc(struct ixgbe_adapter *adapter) |
3159 | { | |
3160 | struct ixgbe_hw *hw = &adapter->hw; | |
671c0adb | 3161 | u32 rttdcs, mtqc; |
8b1c0b24 | 3162 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
120ff942 AD |
3163 | |
3164 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3165 | return; | |
3166 | ||
3167 | /* disable the arbiter while setting MTQC */ | |
3168 | rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS); | |
3169 | rttdcs |= IXGBE_RTTDCS_ARBDIS; | |
3170 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
3171 | ||
3172 | /* set transmit pool layout */ | |
671c0adb AD |
3173 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
3174 | mtqc = IXGBE_MTQC_VT_ENA; | |
3175 | if (tcs > 4) | |
3176 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
3177 | else if (tcs > 1) | |
3178 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
3179 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
3180 | mtqc |= IXGBE_MTQC_32VF; | |
3181 | else | |
3182 | mtqc |= IXGBE_MTQC_64VF; | |
3183 | } else { | |
3184 | if (tcs > 4) | |
3185 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
3186 | else if (tcs > 1) | |
3187 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
8b1c0b24 | 3188 | else |
671c0adb AD |
3189 | mtqc = IXGBE_MTQC_64Q_1PB; |
3190 | } | |
120ff942 | 3191 | |
671c0adb | 3192 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc); |
120ff942 | 3193 | |
671c0adb AD |
3194 | /* Enable Security TX Buffer IFG for multiple pb */ |
3195 | if (tcs) { | |
3196 | u32 sectx = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG); | |
3197 | sectx |= IXGBE_SECTX_DCB; | |
3198 | IXGBE_WRITE_REG(hw, IXGBE_SECTXMINIFG, sectx); | |
120ff942 AD |
3199 | } |
3200 | ||
3201 | /* re-enable the arbiter */ | |
3202 | rttdcs &= ~IXGBE_RTTDCS_ARBDIS; | |
3203 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
3204 | } | |
3205 | ||
9a799d71 | 3206 | /** |
3a581073 | 3207 | * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset |
9a799d71 AK |
3208 | * @adapter: board private structure |
3209 | * | |
3210 | * Configure the Tx unit of the MAC after a reset. | |
3211 | **/ | |
3212 | static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) | |
3213 | { | |
2f1860b8 AD |
3214 | struct ixgbe_hw *hw = &adapter->hw; |
3215 | u32 dmatxctl; | |
43e69bf0 | 3216 | u32 i; |
9a799d71 | 3217 | |
2f1860b8 AD |
3218 | ixgbe_setup_mtqc(adapter); |
3219 | ||
3220 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
3221 | /* DMATXCTL.EN must be before Tx queues are enabled */ | |
3222 | dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); | |
3223 | dmatxctl |= IXGBE_DMATXCTL_TE; | |
3224 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); | |
3225 | } | |
3226 | ||
9a799d71 | 3227 | /* Setup the HW Tx Head and Tail descriptor pointers */ |
43e69bf0 AD |
3228 | for (i = 0; i < adapter->num_tx_queues; i++) |
3229 | ixgbe_configure_tx_ring(adapter, adapter->tx_ring[i]); | |
9a799d71 AK |
3230 | } |
3231 | ||
3ebe8fde AD |
3232 | static void ixgbe_enable_rx_drop(struct ixgbe_adapter *adapter, |
3233 | struct ixgbe_ring *ring) | |
3234 | { | |
3235 | struct ixgbe_hw *hw = &adapter->hw; | |
3236 | u8 reg_idx = ring->reg_idx; | |
3237 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
3238 | ||
3239 | srrctl |= IXGBE_SRRCTL_DROP_EN; | |
3240 | ||
3241 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
3242 | } | |
3243 | ||
3244 | static void ixgbe_disable_rx_drop(struct ixgbe_adapter *adapter, | |
3245 | struct ixgbe_ring *ring) | |
3246 | { | |
3247 | struct ixgbe_hw *hw = &adapter->hw; | |
3248 | u8 reg_idx = ring->reg_idx; | |
3249 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
3250 | ||
3251 | srrctl &= ~IXGBE_SRRCTL_DROP_EN; | |
3252 | ||
3253 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
3254 | } | |
3255 | ||
3256 | #ifdef CONFIG_IXGBE_DCB | |
3257 | void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
3258 | #else | |
3259 | static void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
3260 | #endif | |
3261 | { | |
3262 | int i; | |
3263 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
3264 | ||
3265 | if (adapter->ixgbe_ieee_pfc) | |
3266 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
3267 | ||
3268 | /* | |
3269 | * We should set the drop enable bit if: | |
3270 | * SR-IOV is enabled | |
3271 | * or | |
3272 | * Number of Rx queues > 1 and flow control is disabled | |
3273 | * | |
3274 | * This allows us to avoid head of line blocking for security | |
3275 | * and performance reasons. | |
3276 | */ | |
3277 | if (adapter->num_vfs || (adapter->num_rx_queues > 1 && | |
3278 | !(adapter->hw.fc.current_mode & ixgbe_fc_tx_pause) && !pfc_en)) { | |
3279 | for (i = 0; i < adapter->num_rx_queues; i++) | |
3280 | ixgbe_enable_rx_drop(adapter, adapter->rx_ring[i]); | |
3281 | } else { | |
3282 | for (i = 0; i < adapter->num_rx_queues; i++) | |
3283 | ixgbe_disable_rx_drop(adapter, adapter->rx_ring[i]); | |
3284 | } | |
3285 | } | |
3286 | ||
e8e26350 | 3287 | #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 |
cc41ac7c | 3288 | |
a6616b42 | 3289 | static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, |
e8e9f696 | 3290 | struct ixgbe_ring *rx_ring) |
cc41ac7c | 3291 | { |
45e9baa5 | 3292 | struct ixgbe_hw *hw = &adapter->hw; |
cc41ac7c | 3293 | u32 srrctl; |
bf29ee6c | 3294 | u8 reg_idx = rx_ring->reg_idx; |
3be1adfb | 3295 | |
45e9baa5 AD |
3296 | if (hw->mac.type == ixgbe_mac_82598EB) { |
3297 | u16 mask = adapter->ring_feature[RING_F_RSS].mask; | |
cc41ac7c | 3298 | |
45e9baa5 AD |
3299 | /* |
3300 | * if VMDq is not active we must program one srrctl register | |
3301 | * per RSS queue since we have enabled RDRXCTL.MVMEN | |
3302 | */ | |
3303 | reg_idx &= mask; | |
3304 | } | |
cc41ac7c | 3305 | |
45e9baa5 AD |
3306 | /* configure header buffer length, needed for RSC */ |
3307 | srrctl = IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT; | |
afafd5b0 | 3308 | |
45e9baa5 | 3309 | /* configure the packet buffer length */ |
f800326d | 3310 | srrctl |= ixgbe_rx_bufsz(rx_ring) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
45e9baa5 AD |
3311 | |
3312 | /* configure descriptor type */ | |
f800326d | 3313 | srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; |
e8e26350 | 3314 | |
45e9baa5 | 3315 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); |
cc41ac7c | 3316 | } |
9a799d71 | 3317 | |
dfaf891d | 3318 | /** |
a897a2ad | 3319 | * ixgbe_rss_indir_tbl_entries - Return RSS indirection table entries |
dfaf891d VZ |
3320 | * @adapter: device handle |
3321 | * | |
3322 | * - 82598/82599/X540: 128 | |
3323 | * - X550(non-SRIOV mode): 512 | |
3324 | * - X550(SRIOV mode): 64 | |
3325 | */ | |
7f276efb | 3326 | u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter) |
dfaf891d VZ |
3327 | { |
3328 | if (adapter->hw.mac.type < ixgbe_mac_X550) | |
3329 | return 128; | |
3330 | else if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
3331 | return 64; | |
3332 | else | |
3333 | return 512; | |
3334 | } | |
3335 | ||
3336 | /** | |
a897a2ad | 3337 | * ixgbe_store_reta - Write the RETA table to HW |
dfaf891d VZ |
3338 | * @adapter: device handle |
3339 | * | |
3340 | * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW. | |
3341 | */ | |
1c7cf078 | 3342 | void ixgbe_store_reta(struct ixgbe_adapter *adapter) |
0cefafad | 3343 | { |
dfaf891d | 3344 | u32 i, reta_entries = ixgbe_rss_indir_tbl_entries(adapter); |
05abb126 | 3345 | struct ixgbe_hw *hw = &adapter->hw; |
d1b849b9 | 3346 | u32 reta = 0; |
dfaf891d VZ |
3347 | u32 indices_multi; |
3348 | u8 *indir_tbl = adapter->rss_indir_tbl; | |
05abb126 | 3349 | |
0f9b232b | 3350 | /* Fill out the redirection table as follows: |
dfaf891d VZ |
3351 | * - 82598: 8 bit wide entries containing pair of 4 bit RSS |
3352 | * indices. | |
3353 | * - 82599/X540: 8 bit wide entries containing 4 bit RSS index | |
3354 | * - X550: 8 bit wide entries containing 6 bit RSS index | |
0f9b232b DS |
3355 | */ |
3356 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
3357 | indices_multi = 0x11; | |
3358 | else | |
3359 | indices_multi = 0x1; | |
3360 | ||
dfaf891d VZ |
3361 | /* Write redirection table to HW */ |
3362 | for (i = 0; i < reta_entries; i++) { | |
3363 | reta |= indices_multi * indir_tbl[i] << (i & 0x3) * 8; | |
0f9b232b DS |
3364 | if ((i & 3) == 3) { |
3365 | if (i < 128) | |
3366 | IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); | |
3367 | else | |
3368 | IXGBE_WRITE_REG(hw, IXGBE_ERETA((i >> 2) - 32), | |
3369 | reta); | |
dfaf891d | 3370 | reta = 0; |
0f9b232b DS |
3371 | } |
3372 | } | |
3373 | } | |
3374 | ||
dfaf891d | 3375 | /** |
a897a2ad | 3376 | * ixgbe_store_vfreta - Write the RETA table to HW (x550 devices in SRIOV mode) |
dfaf891d VZ |
3377 | * @adapter: device handle |
3378 | * | |
3379 | * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW. | |
3380 | */ | |
3381 | static void ixgbe_store_vfreta(struct ixgbe_adapter *adapter) | |
0f9b232b | 3382 | { |
dfaf891d | 3383 | u32 i, reta_entries = ixgbe_rss_indir_tbl_entries(adapter); |
0f9b232b DS |
3384 | struct ixgbe_hw *hw = &adapter->hw; |
3385 | u32 vfreta = 0; | |
dfaf891d VZ |
3386 | unsigned int pf_pool = adapter->num_vfs; |
3387 | ||
3388 | /* Write redirection table to HW */ | |
3389 | for (i = 0; i < reta_entries; i++) { | |
3390 | vfreta |= (u32)adapter->rss_indir_tbl[i] << (i & 0x3) * 8; | |
3391 | if ((i & 3) == 3) { | |
3392 | IXGBE_WRITE_REG(hw, IXGBE_PFVFRETA(i >> 2, pf_pool), | |
3393 | vfreta); | |
3394 | vfreta = 0; | |
3395 | } | |
3396 | } | |
3397 | } | |
3398 | ||
3399 | static void ixgbe_setup_reta(struct ixgbe_adapter *adapter) | |
3400 | { | |
3401 | struct ixgbe_hw *hw = &adapter->hw; | |
3402 | u32 i, j; | |
3403 | u32 reta_entries = ixgbe_rss_indir_tbl_entries(adapter); | |
3404 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; | |
3405 | ||
3406 | /* Program table for at least 2 queues w/ SR-IOV so that VFs can | |
3407 | * make full use of any rings they may have. We will use the | |
3408 | * PSRTYPE register to control how many rings we use within the PF. | |
3409 | */ | |
3410 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && (rss_i < 2)) | |
3411 | rss_i = 2; | |
3412 | ||
3413 | /* Fill out hash function seeds */ | |
3414 | for (i = 0; i < 10; i++) | |
3415 | IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), adapter->rss_key[i]); | |
3416 | ||
3417 | /* Fill out redirection table */ | |
3418 | memset(adapter->rss_indir_tbl, 0, sizeof(adapter->rss_indir_tbl)); | |
3419 | ||
3420 | for (i = 0, j = 0; i < reta_entries; i++, j++) { | |
3421 | if (j == rss_i) | |
3422 | j = 0; | |
3423 | ||
3424 | adapter->rss_indir_tbl[i] = j; | |
3425 | } | |
3426 | ||
3427 | ixgbe_store_reta(adapter); | |
3428 | } | |
3429 | ||
3430 | static void ixgbe_setup_vfreta(struct ixgbe_adapter *adapter) | |
3431 | { | |
3432 | struct ixgbe_hw *hw = &adapter->hw; | |
0f9b232b DS |
3433 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; |
3434 | unsigned int pf_pool = adapter->num_vfs; | |
3435 | int i, j; | |
3436 | ||
3437 | /* Fill out hash function seeds */ | |
3438 | for (i = 0; i < 10; i++) | |
dfaf891d VZ |
3439 | IXGBE_WRITE_REG(hw, IXGBE_PFVFRSSRK(i, pf_pool), |
3440 | adapter->rss_key[i]); | |
0f9b232b DS |
3441 | |
3442 | /* Fill out the redirection table */ | |
3443 | for (i = 0, j = 0; i < 64; i++, j++) { | |
671c0adb | 3444 | if (j == rss_i) |
05abb126 | 3445 | j = 0; |
dfaf891d VZ |
3446 | |
3447 | adapter->rss_indir_tbl[i] = j; | |
05abb126 | 3448 | } |
dfaf891d VZ |
3449 | |
3450 | ixgbe_store_vfreta(adapter); | |
d1b849b9 DS |
3451 | } |
3452 | ||
3453 | static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) | |
3454 | { | |
3455 | struct ixgbe_hw *hw = &adapter->hw; | |
0f9b232b | 3456 | u32 mrqc = 0, rss_field = 0, vfmrqc = 0; |
d1b849b9 | 3457 | u32 rxcsum; |
0cefafad | 3458 | |
05abb126 AD |
3459 | /* Disable indicating checksum in descriptor, enables RSS hash */ |
3460 | rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); | |
3461 | rxcsum |= IXGBE_RXCSUM_PCSD; | |
3462 | IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); | |
3463 | ||
671c0adb | 3464 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
fbe7ca7f | 3465 | if (adapter->ring_feature[RING_F_RSS].mask) |
671c0adb | 3466 | mrqc = IXGBE_MRQC_RSSEN; |
8b1c0b24 | 3467 | } else { |
671c0adb AD |
3468 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
3469 | ||
3470 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
3471 | if (tcs > 4) | |
3472 | mrqc = IXGBE_MRQC_VMDQRT8TCEN; /* 8 TCs */ | |
3473 | else if (tcs > 1) | |
3474 | mrqc = IXGBE_MRQC_VMDQRT4TCEN; /* 4 TCs */ | |
3475 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
3476 | mrqc = IXGBE_MRQC_VMDQRSS32EN; | |
8b1c0b24 | 3477 | else |
671c0adb AD |
3478 | mrqc = IXGBE_MRQC_VMDQRSS64EN; |
3479 | } else { | |
3480 | if (tcs > 4) | |
8b1c0b24 | 3481 | mrqc = IXGBE_MRQC_RTRSS8TCEN; |
671c0adb AD |
3482 | else if (tcs > 1) |
3483 | mrqc = IXGBE_MRQC_RTRSS4TCEN; | |
3484 | else | |
3485 | mrqc = IXGBE_MRQC_RSSEN; | |
8b1c0b24 | 3486 | } |
0cefafad JB |
3487 | } |
3488 | ||
05abb126 | 3489 | /* Perform hash on these packet types */ |
d1b849b9 DS |
3490 | rss_field |= IXGBE_MRQC_RSS_FIELD_IPV4 | |
3491 | IXGBE_MRQC_RSS_FIELD_IPV4_TCP | | |
3492 | IXGBE_MRQC_RSS_FIELD_IPV6 | | |
3493 | IXGBE_MRQC_RSS_FIELD_IPV6_TCP; | |
05abb126 | 3494 | |
ef6afc0c | 3495 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP) |
d1b849b9 | 3496 | rss_field |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; |
ef6afc0c | 3497 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP) |
d1b849b9 | 3498 | rss_field |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; |
ef6afc0c | 3499 | |
dfaf891d | 3500 | netdev_rss_key_fill(adapter->rss_key, sizeof(adapter->rss_key)); |
0f9b232b DS |
3501 | if ((hw->mac.type >= ixgbe_mac_X550) && |
3502 | (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) { | |
3503 | unsigned int pf_pool = adapter->num_vfs; | |
3504 | ||
3505 | /* Enable VF RSS mode */ | |
3506 | mrqc |= IXGBE_MRQC_MULTIPLE_RSS; | |
3507 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); | |
3508 | ||
3509 | /* Setup RSS through the VF registers */ | |
dfaf891d | 3510 | ixgbe_setup_vfreta(adapter); |
0f9b232b DS |
3511 | vfmrqc = IXGBE_MRQC_RSSEN; |
3512 | vfmrqc |= rss_field; | |
3513 | IXGBE_WRITE_REG(hw, IXGBE_PFVFMRQC(pf_pool), vfmrqc); | |
3514 | } else { | |
dfaf891d | 3515 | ixgbe_setup_reta(adapter); |
0f9b232b DS |
3516 | mrqc |= rss_field; |
3517 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); | |
3518 | } | |
0cefafad JB |
3519 | } |
3520 | ||
bb5a9ad2 NS |
3521 | /** |
3522 | * ixgbe_configure_rscctl - enable RSC for the indicated ring | |
3523 | * @adapter: address of board private structure | |
3524 | * @index: index of ring to set | |
bb5a9ad2 | 3525 | **/ |
082757af | 3526 | static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, |
7367096a | 3527 | struct ixgbe_ring *ring) |
bb5a9ad2 | 3528 | { |
bb5a9ad2 | 3529 | struct ixgbe_hw *hw = &adapter->hw; |
bb5a9ad2 | 3530 | u32 rscctrl; |
bf29ee6c | 3531 | u8 reg_idx = ring->reg_idx; |
7367096a | 3532 | |
7d637bcc | 3533 | if (!ring_is_rsc_enabled(ring)) |
7367096a | 3534 | return; |
bb5a9ad2 | 3535 | |
7367096a | 3536 | rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(reg_idx)); |
bb5a9ad2 NS |
3537 | rscctrl |= IXGBE_RSCCTL_RSCEN; |
3538 | /* | |
3539 | * we must limit the number of descriptors so that the | |
3540 | * total size of max desc * buf_len is not greater | |
642c680e | 3541 | * than 65536 |
bb5a9ad2 | 3542 | */ |
f800326d | 3543 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
7367096a | 3544 | IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl); |
bb5a9ad2 NS |
3545 | } |
3546 | ||
9e10e045 AD |
3547 | #define IXGBE_MAX_RX_DESC_POLL 10 |
3548 | static void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, | |
3549 | struct ixgbe_ring *ring) | |
3550 | { | |
3551 | struct ixgbe_hw *hw = &adapter->hw; | |
9e10e045 AD |
3552 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; |
3553 | u32 rxdctl; | |
bf29ee6c | 3554 | u8 reg_idx = ring->reg_idx; |
9e10e045 | 3555 | |
b0483c8f MR |
3556 | if (ixgbe_removed(hw->hw_addr)) |
3557 | return; | |
9e10e045 AD |
3558 | /* RXDCTL.EN will return 0 on 82598 if link is down, so skip it */ |
3559 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3560 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3561 | return; | |
3562 | ||
3563 | do { | |
032b4325 | 3564 | usleep_range(1000, 2000); |
9e10e045 AD |
3565 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
3566 | } while (--wait_loop && !(rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3567 | ||
3568 | if (!wait_loop) { | |
3569 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not set within " | |
3570 | "the polling period\n", reg_idx); | |
3571 | } | |
3572 | } | |
3573 | ||
2d39d576 YZ |
3574 | void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter, |
3575 | struct ixgbe_ring *ring) | |
3576 | { | |
3577 | struct ixgbe_hw *hw = &adapter->hw; | |
3578 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; | |
3579 | u32 rxdctl; | |
3580 | u8 reg_idx = ring->reg_idx; | |
3581 | ||
b0483c8f MR |
3582 | if (ixgbe_removed(hw->hw_addr)) |
3583 | return; | |
2d39d576 YZ |
3584 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
3585 | rxdctl &= ~IXGBE_RXDCTL_ENABLE; | |
3586 | ||
3587 | /* write value back with RXDCTL.ENABLE bit cleared */ | |
3588 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3589 | ||
3590 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3591 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3592 | return; | |
3593 | ||
3594 | /* the hardware may take up to 100us to really disable the rx queue */ | |
3595 | do { | |
3596 | udelay(10); | |
3597 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
3598 | } while (--wait_loop && (rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3599 | ||
3600 | if (!wait_loop) { | |
3601 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not cleared within " | |
3602 | "the polling period\n", reg_idx); | |
3603 | } | |
3604 | } | |
3605 | ||
84418e3b AD |
3606 | void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter, |
3607 | struct ixgbe_ring *ring) | |
acd37177 AD |
3608 | { |
3609 | struct ixgbe_hw *hw = &adapter->hw; | |
3610 | u64 rdba = ring->dma; | |
9e10e045 | 3611 | u32 rxdctl; |
bf29ee6c | 3612 | u8 reg_idx = ring->reg_idx; |
acd37177 | 3613 | |
9e10e045 AD |
3614 | /* disable queue to avoid issues while updating state */ |
3615 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
2d39d576 | 3616 | ixgbe_disable_rx_queue(adapter, ring); |
9e10e045 | 3617 | |
acd37177 AD |
3618 | IXGBE_WRITE_REG(hw, IXGBE_RDBAL(reg_idx), (rdba & DMA_BIT_MASK(32))); |
3619 | IXGBE_WRITE_REG(hw, IXGBE_RDBAH(reg_idx), (rdba >> 32)); | |
3620 | IXGBE_WRITE_REG(hw, IXGBE_RDLEN(reg_idx), | |
3621 | ring->count * sizeof(union ixgbe_adv_rx_desc)); | |
8b75451b NP |
3622 | /* Force flushing of IXGBE_RDLEN to prevent MDD */ |
3623 | IXGBE_WRITE_FLUSH(hw); | |
3624 | ||
acd37177 AD |
3625 | IXGBE_WRITE_REG(hw, IXGBE_RDH(reg_idx), 0); |
3626 | IXGBE_WRITE_REG(hw, IXGBE_RDT(reg_idx), 0); | |
2a1a091c | 3627 | ring->tail = adapter->io_addr + IXGBE_RDT(reg_idx); |
9e10e045 AD |
3628 | |
3629 | ixgbe_configure_srrctl(adapter, ring); | |
3630 | ixgbe_configure_rscctl(adapter, ring); | |
3631 | ||
3632 | if (hw->mac.type == ixgbe_mac_82598EB) { | |
3633 | /* | |
3634 | * enable cache line friendly hardware writes: | |
3635 | * PTHRESH=32 descriptors (half the internal cache), | |
3636 | * this also removes ugly rx_no_buffer_count increment | |
3637 | * HTHRESH=4 descriptors (to minimize latency on fetch) | |
3638 | * WTHRESH=8 burst writeback up to two cache lines | |
3639 | */ | |
3640 | rxdctl &= ~0x3FFFFF; | |
3641 | rxdctl |= 0x080420; | |
3642 | } | |
3643 | ||
3644 | /* enable receive descriptor ring */ | |
3645 | rxdctl |= IXGBE_RXDCTL_ENABLE; | |
3646 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3647 | ||
3648 | ixgbe_rx_desc_queue_enable(adapter, ring); | |
7d4987de | 3649 | ixgbe_alloc_rx_buffers(ring, ixgbe_desc_unused(ring)); |
acd37177 AD |
3650 | } |
3651 | ||
48654521 AD |
3652 | static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) |
3653 | { | |
3654 | struct ixgbe_hw *hw = &adapter->hw; | |
fbe7ca7f | 3655 | int rss_i = adapter->ring_feature[RING_F_RSS].indices; |
2a47fa45 | 3656 | u16 pool; |
48654521 AD |
3657 | |
3658 | /* PSRTYPE must be initialized in non 82598 adapters */ | |
3659 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
e8e9f696 JP |
3660 | IXGBE_PSRTYPE_UDPHDR | |
3661 | IXGBE_PSRTYPE_IPV4HDR | | |
48654521 | 3662 | IXGBE_PSRTYPE_L2HDR | |
e8e9f696 | 3663 | IXGBE_PSRTYPE_IPV6HDR; |
48654521 AD |
3664 | |
3665 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3666 | return; | |
3667 | ||
fbe7ca7f AD |
3668 | if (rss_i > 3) |
3669 | psrtype |= 2 << 29; | |
3670 | else if (rss_i > 1) | |
3671 | psrtype |= 1 << 29; | |
48654521 | 3672 | |
2a47fa45 JF |
3673 | for_each_set_bit(pool, &adapter->fwd_bitmask, 32) |
3674 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype); | |
48654521 AD |
3675 | } |
3676 | ||
f5b4a52e AD |
3677 | static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter) |
3678 | { | |
3679 | struct ixgbe_hw *hw = &adapter->hw; | |
f5b4a52e | 3680 | u32 reg_offset, vf_shift; |
435b19f6 | 3681 | u32 gcr_ext, vmdctl; |
de4c7f65 | 3682 | int i; |
f5b4a52e AD |
3683 | |
3684 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
3685 | return; | |
3686 | ||
3687 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
435b19f6 AD |
3688 | vmdctl |= IXGBE_VMD_CTL_VMDQ_EN; |
3689 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
1d9c0bfd | 3690 | vmdctl |= VMDQ_P(0) << IXGBE_VT_CTL_POOL_SHIFT; |
435b19f6 AD |
3691 | vmdctl |= IXGBE_VT_CTL_REPLEN; |
3692 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
f5b4a52e | 3693 | |
1d9c0bfd AD |
3694 | vf_shift = VMDQ_P(0) % 32; |
3695 | reg_offset = (VMDQ_P(0) >= 32) ? 1 : 0; | |
f5b4a52e AD |
3696 | |
3697 | /* Enable only the PF's pool for Tx/Rx */ | |
435b19f6 AD |
3698 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (~0) << vf_shift); |
3699 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset ^ 1), reg_offset - 1); | |
3700 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (~0) << vf_shift); | |
3701 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset ^ 1), reg_offset - 1); | |
aa2bacb6 | 3702 | if (adapter->bridge_mode == BRIDGE_MODE_VEB) |
9b735984 | 3703 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); |
f5b4a52e AD |
3704 | |
3705 | /* Map PF MAC address in RAR Entry 0 to first pool following VFs */ | |
1d9c0bfd | 3706 | hw->mac.ops.set_vmdq(hw, 0, VMDQ_P(0)); |
f5b4a52e | 3707 | |
16369564 AD |
3708 | /* clear VLAN promisc flag so VFTA will be updated if necessary */ |
3709 | adapter->flags2 &= ~IXGBE_FLAG2_VLAN_PROMISC; | |
3710 | ||
f5b4a52e AD |
3711 | /* |
3712 | * Set up VF register offsets for selected VT Mode, | |
3713 | * i.e. 32 or 64 VFs for SR-IOV | |
3714 | */ | |
73079ea0 AD |
3715 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { |
3716 | case IXGBE_82599_VMDQ_8Q_MASK: | |
3717 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_16; | |
3718 | break; | |
3719 | case IXGBE_82599_VMDQ_4Q_MASK: | |
3720 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_32; | |
3721 | break; | |
3722 | default: | |
3723 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_64; | |
3724 | break; | |
3725 | } | |
3726 | ||
f5b4a52e AD |
3727 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); |
3728 | ||
435b19f6 | 3729 | |
a985b6c3 | 3730 | /* Enable MAC Anti-Spoofing */ |
435b19f6 | 3731 | hw->mac.ops.set_mac_anti_spoofing(hw, (adapter->num_vfs != 0), |
a985b6c3 | 3732 | adapter->num_vfs); |
5b7f000f | 3733 | |
f079fa00 | 3734 | /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be |
5b7f000f DS |
3735 | * calling set_ethertype_anti_spoofing for each VF in loop below |
3736 | */ | |
f079fa00 | 3737 | if (hw->mac.ops.set_ethertype_anti_spoofing) { |
5b7f000f | 3738 | IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP), |
f079fa00 ET |
3739 | (IXGBE_ETQF_FILTER_EN | |
3740 | IXGBE_ETQF_TX_ANTISPOOF | | |
3741 | IXGBE_ETH_P_LLDP)); | |
3742 | ||
3743 | IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC), | |
3744 | (IXGBE_ETQF_FILTER_EN | | |
3745 | IXGBE_ETQF_TX_ANTISPOOF | | |
3746 | ETH_P_PAUSE)); | |
3747 | } | |
5b7f000f | 3748 | |
de4c7f65 GR |
3749 | /* For VFs that have spoof checking turned off */ |
3750 | for (i = 0; i < adapter->num_vfs; i++) { | |
3751 | if (!adapter->vfinfo[i].spoofchk_enabled) | |
3752 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, i, false); | |
5b7f000f DS |
3753 | |
3754 | /* enable ethertype anti spoofing if hw supports it */ | |
3755 | if (hw->mac.ops.set_ethertype_anti_spoofing) | |
3756 | hw->mac.ops.set_ethertype_anti_spoofing(hw, true, i); | |
e65ce0d3 VZ |
3757 | |
3758 | /* Enable/Disable RSS query feature */ | |
3759 | ixgbe_ndo_set_vf_rss_query_en(adapter->netdev, i, | |
3760 | adapter->vfinfo[i].rss_query_enabled); | |
de4c7f65 | 3761 | } |
f5b4a52e AD |
3762 | } |
3763 | ||
477de6ed | 3764 | static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) |
9a799d71 | 3765 | { |
9a799d71 AK |
3766 | struct ixgbe_hw *hw = &adapter->hw; |
3767 | struct net_device *netdev = adapter->netdev; | |
3768 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
477de6ed AD |
3769 | struct ixgbe_ring *rx_ring; |
3770 | int i; | |
3771 | u32 mhadd, hlreg0; | |
48654521 | 3772 | |
63f39bd1 | 3773 | #ifdef IXGBE_FCOE |
477de6ed AD |
3774 | /* adjust max frame to be able to do baby jumbo for FCoE */ |
3775 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && | |
3776 | (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE)) | |
3777 | max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9a799d71 | 3778 | |
477de6ed | 3779 | #endif /* IXGBE_FCOE */ |
872844dd AD |
3780 | |
3781 | /* adjust max frame to be at least the size of a standard frame */ | |
3782 | if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN)) | |
3783 | max_frame = (ETH_FRAME_LEN + ETH_FCS_LEN); | |
3784 | ||
477de6ed AD |
3785 | mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); |
3786 | if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { | |
3787 | mhadd &= ~IXGBE_MHADD_MFS_MASK; | |
3788 | mhadd |= max_frame << IXGBE_MHADD_MFS_SHIFT; | |
3789 | ||
3790 | IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd); | |
3791 | } | |
3792 | ||
3793 | hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); | |
3794 | /* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */ | |
3795 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; | |
3796 | IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); | |
9a799d71 | 3797 | |
0cefafad JB |
3798 | /* |
3799 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3800 | * the Base and Length of the Rx Descriptor Ring | |
3801 | */ | |
9a799d71 | 3802 | for (i = 0; i < adapter->num_rx_queues; i++) { |
4a0b9ca0 | 3803 | rx_ring = adapter->rx_ring[i]; |
7d637bcc AD |
3804 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
3805 | set_ring_rsc_enabled(rx_ring); | |
1b3ff02e | 3806 | else |
7d637bcc | 3807 | clear_ring_rsc_enabled(rx_ring); |
477de6ed | 3808 | } |
477de6ed AD |
3809 | } |
3810 | ||
7367096a AD |
3811 | static void ixgbe_setup_rdrxctl(struct ixgbe_adapter *adapter) |
3812 | { | |
3813 | struct ixgbe_hw *hw = &adapter->hw; | |
3814 | u32 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); | |
3815 | ||
3816 | switch (hw->mac.type) { | |
3817 | case ixgbe_mac_82598EB: | |
3818 | /* | |
3819 | * For VMDq support of different descriptor types or | |
3820 | * buffer sizes through the use of multiple SRRCTL | |
3821 | * registers, RDRXCTL.MVMEN must be set to 1 | |
3822 | * | |
3823 | * also, the manual doesn't mention it clearly but DCA hints | |
3824 | * will only use queue 0's tags unless this bit is set. Side | |
3825 | * effects of setting this bit are only that SRRCTL must be | |
3826 | * fully programmed [0..15] | |
3827 | */ | |
3828 | rdrxctl |= IXGBE_RDRXCTL_MVMEN; | |
3829 | break; | |
052a1a72 MR |
3830 | case ixgbe_mac_X550: |
3831 | case ixgbe_mac_X550EM_x: | |
f961ddae MR |
3832 | if (adapter->num_vfs) |
3833 | rdrxctl |= IXGBE_RDRXCTL_PSP; | |
3834 | /* fall through for older HW */ | |
7367096a | 3835 | case ixgbe_mac_82599EB: |
b93a2226 | 3836 | case ixgbe_mac_X540: |
7367096a AD |
3837 | /* Disable RSC for ACK packets */ |
3838 | IXGBE_WRITE_REG(hw, IXGBE_RSCDBU, | |
3839 | (IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU))); | |
3840 | rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE; | |
3841 | /* hardware requires some bits to be set by default */ | |
3842 | rdrxctl |= (IXGBE_RDRXCTL_RSCACKC | IXGBE_RDRXCTL_FCOE_WRFIX); | |
3843 | rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; | |
3844 | break; | |
3845 | default: | |
3846 | /* We should do nothing since we don't know this hardware */ | |
3847 | return; | |
3848 | } | |
3849 | ||
3850 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); | |
3851 | } | |
3852 | ||
477de6ed AD |
3853 | /** |
3854 | * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset | |
3855 | * @adapter: board private structure | |
3856 | * | |
3857 | * Configure the Rx unit of the MAC after a reset. | |
3858 | **/ | |
3859 | static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) | |
3860 | { | |
3861 | struct ixgbe_hw *hw = &adapter->hw; | |
477de6ed | 3862 | int i; |
6dcc28b9 | 3863 | u32 rxctrl, rfctl; |
477de6ed AD |
3864 | |
3865 | /* disable receives while setting up the descriptors */ | |
1f9ac57c | 3866 | hw->mac.ops.disable_rx(hw); |
477de6ed AD |
3867 | |
3868 | ixgbe_setup_psrtype(adapter); | |
7367096a | 3869 | ixgbe_setup_rdrxctl(adapter); |
477de6ed | 3870 | |
6dcc28b9 JK |
3871 | /* RSC Setup */ |
3872 | rfctl = IXGBE_READ_REG(hw, IXGBE_RFCTL); | |
3873 | rfctl &= ~IXGBE_RFCTL_RSC_DIS; | |
3874 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) | |
3875 | rfctl |= IXGBE_RFCTL_RSC_DIS; | |
3876 | IXGBE_WRITE_REG(hw, IXGBE_RFCTL, rfctl); | |
3877 | ||
9e10e045 | 3878 | /* Program registers for the distribution of queues */ |
f5b4a52e | 3879 | ixgbe_setup_mrqc(adapter); |
f5b4a52e | 3880 | |
477de6ed AD |
3881 | /* set_rx_buffer_len must be called before ring initialization */ |
3882 | ixgbe_set_rx_buffer_len(adapter); | |
3883 | ||
3884 | /* | |
3885 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3886 | * the Base and Length of the Rx Descriptor Ring | |
3887 | */ | |
9e10e045 AD |
3888 | for (i = 0; i < adapter->num_rx_queues; i++) |
3889 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[i]); | |
177db6ff | 3890 | |
1f9ac57c | 3891 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
9e10e045 AD |
3892 | /* disable drop enable for 82598 parts */ |
3893 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3894 | rxctrl |= IXGBE_RXCTRL_DMBYPS; | |
3895 | ||
3896 | /* enable all receives */ | |
3897 | rxctrl |= IXGBE_RXCTRL_RXEN; | |
3898 | hw->mac.ops.enable_rx_dma(hw, rxctrl); | |
9a799d71 AK |
3899 | } |
3900 | ||
80d5c368 PM |
3901 | static int ixgbe_vlan_rx_add_vid(struct net_device *netdev, |
3902 | __be16 proto, u16 vid) | |
068c89b0 DS |
3903 | { |
3904 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3905 | struct ixgbe_hw *hw = &adapter->hw; | |
3906 | ||
3907 | /* add VID to filter table */ | |
b6488b66 | 3908 | hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), true, true); |
f62bbb5e | 3909 | set_bit(vid, adapter->active_vlans); |
8e586137 JP |
3910 | |
3911 | return 0; | |
068c89b0 DS |
3912 | } |
3913 | ||
e1d0a2af AD |
3914 | static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan) |
3915 | { | |
3916 | u32 vlvf; | |
3917 | int idx; | |
3918 | ||
3919 | /* short cut the special case */ | |
3920 | if (vlan == 0) | |
3921 | return 0; | |
3922 | ||
3923 | /* Search for the vlan id in the VLVF entries */ | |
3924 | for (idx = IXGBE_VLVF_ENTRIES; --idx;) { | |
3925 | vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(idx)); | |
3926 | if ((vlvf & VLAN_VID_MASK) == vlan) | |
3927 | break; | |
3928 | } | |
3929 | ||
3930 | return idx; | |
3931 | } | |
3932 | ||
3933 | void ixgbe_update_pf_promisc_vlvf(struct ixgbe_adapter *adapter, u32 vid) | |
3934 | { | |
3935 | struct ixgbe_hw *hw = &adapter->hw; | |
3936 | u32 bits, word; | |
3937 | int idx; | |
3938 | ||
3939 | idx = ixgbe_find_vlvf_entry(hw, vid); | |
3940 | if (!idx) | |
3941 | return; | |
3942 | ||
3943 | /* See if any other pools are set for this VLAN filter | |
3944 | * entry other than the PF. | |
3945 | */ | |
3946 | word = idx * 2 + (VMDQ_P(0) / 32); | |
3947 | bits = ~(1 << (VMDQ_P(0)) % 32); | |
3948 | bits &= IXGBE_READ_REG(hw, IXGBE_VLVFB(word)); | |
3949 | ||
3950 | /* Disable the filter so this falls into the default pool. */ | |
3951 | if (!bits && !IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1))) { | |
3952 | if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC)) | |
3953 | IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), 0); | |
3954 | IXGBE_WRITE_REG(hw, IXGBE_VLVF(idx), 0); | |
3955 | } | |
3956 | } | |
3957 | ||
80d5c368 PM |
3958 | static int ixgbe_vlan_rx_kill_vid(struct net_device *netdev, |
3959 | __be16 proto, u16 vid) | |
068c89b0 DS |
3960 | { |
3961 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3962 | struct ixgbe_hw *hw = &adapter->hw; | |
3963 | ||
068c89b0 | 3964 | /* remove VID from filter table */ |
e1d0a2af AD |
3965 | if (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC) |
3966 | ixgbe_update_pf_promisc_vlvf(adapter, vid); | |
3967 | else | |
3968 | hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), false, true); | |
3969 | ||
f62bbb5e | 3970 | clear_bit(vid, adapter->active_vlans); |
8e586137 JP |
3971 | |
3972 | return 0; | |
068c89b0 DS |
3973 | } |
3974 | ||
f62bbb5e JG |
3975 | /** |
3976 | * ixgbe_vlan_strip_disable - helper to disable hw vlan stripping | |
3977 | * @adapter: driver data | |
3978 | */ | |
3979 | static void ixgbe_vlan_strip_disable(struct ixgbe_adapter *adapter) | |
3980 | { | |
3981 | struct ixgbe_hw *hw = &adapter->hw; | |
3982 | u32 vlnctrl; | |
5f6c0181 JB |
3983 | int i, j; |
3984 | ||
3985 | switch (hw->mac.type) { | |
3986 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3987 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3988 | vlnctrl &= ~IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3989 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3990 | break; | |
3991 | case ixgbe_mac_82599EB: | |
b93a2226 | 3992 | case ixgbe_mac_X540: |
9a75a1ac DS |
3993 | case ixgbe_mac_X550: |
3994 | case ixgbe_mac_X550EM_x: | |
5f6c0181 | 3995 | for (i = 0; i < adapter->num_rx_queues; i++) { |
2a47fa45 JF |
3996 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
3997 | ||
3998 | if (ring->l2_accel_priv) | |
3999 | continue; | |
4000 | j = ring->reg_idx; | |
5f6c0181 JB |
4001 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
4002 | vlnctrl &= ~IXGBE_RXDCTL_VME; | |
4003 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
4004 | } | |
4005 | break; | |
4006 | default: | |
4007 | break; | |
4008 | } | |
4009 | } | |
4010 | ||
4011 | /** | |
f62bbb5e | 4012 | * ixgbe_vlan_strip_enable - helper to enable hw vlan stripping |
5f6c0181 JB |
4013 | * @adapter: driver data |
4014 | */ | |
f62bbb5e | 4015 | static void ixgbe_vlan_strip_enable(struct ixgbe_adapter *adapter) |
5f6c0181 JB |
4016 | { |
4017 | struct ixgbe_hw *hw = &adapter->hw; | |
f62bbb5e | 4018 | u32 vlnctrl; |
5f6c0181 JB |
4019 | int i, j; |
4020 | ||
4021 | switch (hw->mac.type) { | |
4022 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
4023 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
4024 | vlnctrl |= IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
4025 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
4026 | break; | |
4027 | case ixgbe_mac_82599EB: | |
b93a2226 | 4028 | case ixgbe_mac_X540: |
9a75a1ac DS |
4029 | case ixgbe_mac_X550: |
4030 | case ixgbe_mac_X550EM_x: | |
5f6c0181 | 4031 | for (i = 0; i < adapter->num_rx_queues; i++) { |
2a47fa45 JF |
4032 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
4033 | ||
4034 | if (ring->l2_accel_priv) | |
4035 | continue; | |
4036 | j = ring->reg_idx; | |
5f6c0181 JB |
4037 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
4038 | vlnctrl |= IXGBE_RXDCTL_VME; | |
4039 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
4040 | } | |
4041 | break; | |
4042 | default: | |
4043 | break; | |
4044 | } | |
4045 | } | |
4046 | ||
16369564 AD |
4047 | static void ixgbe_vlan_promisc_enable(struct ixgbe_adapter *adapter) |
4048 | { | |
4049 | struct ixgbe_hw *hw = &adapter->hw; | |
4050 | u32 vlnctrl, i; | |
4051 | ||
4052 | switch (hw->mac.type) { | |
4053 | case ixgbe_mac_82599EB: | |
4054 | case ixgbe_mac_X540: | |
4055 | case ixgbe_mac_X550: | |
4056 | case ixgbe_mac_X550EM_x: | |
4057 | default: | |
4058 | if (adapter->flags & IXGBE_FLAG_VMDQ_ENABLED) | |
4059 | break; | |
4060 | /* fall through */ | |
4061 | case ixgbe_mac_82598EB: | |
4062 | /* legacy case, we can just disable VLAN filtering */ | |
4063 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
4064 | vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); | |
4065 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
4066 | return; | |
4067 | } | |
4068 | ||
4069 | /* We are already in VLAN promisc, nothing to do */ | |
4070 | if (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC) | |
4071 | return; | |
4072 | ||
4073 | /* Set flag so we don't redo unnecessary work */ | |
4074 | adapter->flags2 |= IXGBE_FLAG2_VLAN_PROMISC; | |
4075 | ||
4076 | /* Add PF to all active pools */ | |
4077 | for (i = IXGBE_VLVF_ENTRIES; --i;) { | |
4078 | u32 reg_offset = IXGBE_VLVFB(i * 2 + VMDQ_P(0) / 32); | |
4079 | u32 vlvfb = IXGBE_READ_REG(hw, reg_offset); | |
4080 | ||
4081 | vlvfb |= 1 << (VMDQ_P(0) % 32); | |
4082 | IXGBE_WRITE_REG(hw, reg_offset, vlvfb); | |
4083 | } | |
4084 | ||
4085 | /* Set all bits in the VLAN filter table array */ | |
4086 | for (i = hw->mac.vft_size; i--;) | |
4087 | IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), ~0U); | |
4088 | } | |
4089 | ||
4090 | #define VFTA_BLOCK_SIZE 8 | |
4091 | static void ixgbe_scrub_vfta(struct ixgbe_adapter *adapter, u32 vfta_offset) | |
4092 | { | |
4093 | struct ixgbe_hw *hw = &adapter->hw; | |
4094 | u32 vfta[VFTA_BLOCK_SIZE] = { 0 }; | |
4095 | u32 vid_start = vfta_offset * 32; | |
4096 | u32 vid_end = vid_start + (VFTA_BLOCK_SIZE * 32); | |
4097 | u32 i, vid, word, bits; | |
4098 | ||
4099 | for (i = IXGBE_VLVF_ENTRIES; --i;) { | |
4100 | u32 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i)); | |
4101 | ||
4102 | /* pull VLAN ID from VLVF */ | |
4103 | vid = vlvf & VLAN_VID_MASK; | |
4104 | ||
4105 | /* only concern outselves with a certain range */ | |
4106 | if (vid < vid_start || vid >= vid_end) | |
4107 | continue; | |
4108 | ||
4109 | if (vlvf) { | |
4110 | /* record VLAN ID in VFTA */ | |
4111 | vfta[(vid - vid_start) / 32] |= 1 << (vid % 32); | |
4112 | ||
4113 | /* if PF is part of this then continue */ | |
4114 | if (test_bit(vid, adapter->active_vlans)) | |
4115 | continue; | |
4116 | } | |
4117 | ||
4118 | /* remove PF from the pool */ | |
4119 | word = i * 2 + VMDQ_P(0) / 32; | |
4120 | bits = ~(1 << (VMDQ_P(0) % 32)); | |
4121 | bits &= IXGBE_READ_REG(hw, IXGBE_VLVFB(word)); | |
4122 | IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), bits); | |
4123 | } | |
4124 | ||
4125 | /* extract values from active_vlans and write back to VFTA */ | |
4126 | for (i = VFTA_BLOCK_SIZE; i--;) { | |
4127 | vid = (vfta_offset + i) * 32; | |
4128 | word = vid / BITS_PER_LONG; | |
4129 | bits = vid % BITS_PER_LONG; | |
4130 | ||
4131 | vfta[i] |= adapter->active_vlans[word] >> bits; | |
4132 | ||
4133 | IXGBE_WRITE_REG(hw, IXGBE_VFTA(vfta_offset + i), vfta[i]); | |
4134 | } | |
4135 | } | |
4136 | ||
4137 | static void ixgbe_vlan_promisc_disable(struct ixgbe_adapter *adapter) | |
4138 | { | |
4139 | struct ixgbe_hw *hw = &adapter->hw; | |
4140 | u32 vlnctrl, i; | |
4141 | ||
4142 | switch (hw->mac.type) { | |
4143 | case ixgbe_mac_82599EB: | |
4144 | case ixgbe_mac_X540: | |
4145 | case ixgbe_mac_X550: | |
4146 | case ixgbe_mac_X550EM_x: | |
4147 | default: | |
4148 | if (adapter->flags & IXGBE_FLAG_VMDQ_ENABLED) | |
4149 | break; | |
4150 | /* fall through */ | |
4151 | case ixgbe_mac_82598EB: | |
4152 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
4153 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; | |
4154 | vlnctrl |= IXGBE_VLNCTRL_VFE; | |
4155 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
4156 | return; | |
4157 | } | |
4158 | ||
4159 | /* We are not in VLAN promisc, nothing to do */ | |
4160 | if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC)) | |
4161 | return; | |
4162 | ||
4163 | /* Set flag so we don't redo unnecessary work */ | |
4164 | adapter->flags2 &= ~IXGBE_FLAG2_VLAN_PROMISC; | |
4165 | ||
4166 | for (i = 0; i < hw->mac.vft_size; i += VFTA_BLOCK_SIZE) | |
4167 | ixgbe_scrub_vfta(adapter, i); | |
4168 | } | |
4169 | ||
9a799d71 AK |
4170 | static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter) |
4171 | { | |
f62bbb5e | 4172 | u16 vid; |
9a799d71 | 4173 | |
80d5c368 | 4174 | ixgbe_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), 0); |
f62bbb5e JG |
4175 | |
4176 | for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) | |
80d5c368 | 4177 | ixgbe_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid); |
9a799d71 AK |
4178 | } |
4179 | ||
b335e75b JK |
4180 | /** |
4181 | * ixgbe_write_mc_addr_list - write multicast addresses to MTA | |
4182 | * @netdev: network interface device structure | |
4183 | * | |
4184 | * Writes multicast address list to the MTA hash table. | |
4185 | * Returns: -ENOMEM on failure | |
4186 | * 0 on no addresses written | |
4187 | * X on writing X addresses to MTA | |
4188 | **/ | |
4189 | static int ixgbe_write_mc_addr_list(struct net_device *netdev) | |
4190 | { | |
4191 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4192 | struct ixgbe_hw *hw = &adapter->hw; | |
4193 | ||
4194 | if (!netif_running(netdev)) | |
4195 | return 0; | |
4196 | ||
4197 | if (hw->mac.ops.update_mc_addr_list) | |
4198 | hw->mac.ops.update_mc_addr_list(hw, netdev); | |
4199 | else | |
4200 | return -ENOMEM; | |
4201 | ||
4202 | #ifdef CONFIG_PCI_IOV | |
5d7daa35 | 4203 | ixgbe_restore_vf_multicasts(adapter); |
b335e75b JK |
4204 | #endif |
4205 | ||
4206 | return netdev_mc_count(netdev); | |
4207 | } | |
4208 | ||
5d7daa35 JK |
4209 | #ifdef CONFIG_PCI_IOV |
4210 | void ixgbe_full_sync_mac_table(struct ixgbe_adapter *adapter) | |
4211 | { | |
c9f53e63 | 4212 | struct ixgbe_mac_addr *mac_table = &adapter->mac_table[0]; |
5d7daa35 JK |
4213 | struct ixgbe_hw *hw = &adapter->hw; |
4214 | int i; | |
c9f53e63 AD |
4215 | |
4216 | for (i = 0; i < hw->mac.num_rar_entries; i++, mac_table++) { | |
4217 | mac_table->state &= ~IXGBE_MAC_STATE_MODIFIED; | |
4218 | ||
4219 | if (mac_table->state & IXGBE_MAC_STATE_IN_USE) | |
4220 | hw->mac.ops.set_rar(hw, i, | |
4221 | mac_table->addr, | |
4222 | mac_table->pool, | |
5d7daa35 JK |
4223 | IXGBE_RAH_AV); |
4224 | else | |
4225 | hw->mac.ops.clear_rar(hw, i); | |
5d7daa35 JK |
4226 | } |
4227 | } | |
5d7daa35 | 4228 | |
c9f53e63 | 4229 | #endif |
5d7daa35 JK |
4230 | static void ixgbe_sync_mac_table(struct ixgbe_adapter *adapter) |
4231 | { | |
c9f53e63 | 4232 | struct ixgbe_mac_addr *mac_table = &adapter->mac_table[0]; |
5d7daa35 JK |
4233 | struct ixgbe_hw *hw = &adapter->hw; |
4234 | int i; | |
5d7daa35 | 4235 | |
c9f53e63 AD |
4236 | for (i = 0; i < hw->mac.num_rar_entries; i++, mac_table++) { |
4237 | if (!(mac_table->state & IXGBE_MAC_STATE_MODIFIED)) | |
4238 | continue; | |
4239 | ||
4240 | mac_table->state &= ~IXGBE_MAC_STATE_MODIFIED; | |
4241 | ||
4242 | if (mac_table->state & IXGBE_MAC_STATE_IN_USE) | |
4243 | hw->mac.ops.set_rar(hw, i, | |
4244 | mac_table->addr, | |
4245 | mac_table->pool, | |
4246 | IXGBE_RAH_AV); | |
4247 | else | |
4248 | hw->mac.ops.clear_rar(hw, i); | |
5d7daa35 JK |
4249 | } |
4250 | } | |
4251 | ||
4252 | static void ixgbe_flush_sw_mac_table(struct ixgbe_adapter *adapter) | |
4253 | { | |
c9f53e63 | 4254 | struct ixgbe_mac_addr *mac_table = &adapter->mac_table[0]; |
5d7daa35 | 4255 | struct ixgbe_hw *hw = &adapter->hw; |
c9f53e63 | 4256 | int i; |
5d7daa35 | 4257 | |
c9f53e63 AD |
4258 | for (i = 0; i < hw->mac.num_rar_entries; i++, mac_table++) { |
4259 | mac_table->state |= IXGBE_MAC_STATE_MODIFIED; | |
4260 | mac_table->state &= ~IXGBE_MAC_STATE_IN_USE; | |
5d7daa35 | 4261 | } |
c9f53e63 | 4262 | |
5d7daa35 JK |
4263 | ixgbe_sync_mac_table(adapter); |
4264 | } | |
4265 | ||
c9f53e63 | 4266 | static int ixgbe_available_rars(struct ixgbe_adapter *adapter, u16 pool) |
5d7daa35 | 4267 | { |
c9f53e63 | 4268 | struct ixgbe_mac_addr *mac_table = &adapter->mac_table[0]; |
5d7daa35 JK |
4269 | struct ixgbe_hw *hw = &adapter->hw; |
4270 | int i, count = 0; | |
4271 | ||
c9f53e63 AD |
4272 | for (i = 0; i < hw->mac.num_rar_entries; i++, mac_table++) { |
4273 | /* do not count default RAR as available */ | |
4274 | if (mac_table->state & IXGBE_MAC_STATE_DEFAULT) | |
4275 | continue; | |
4276 | ||
4277 | /* only count unused and addresses that belong to us */ | |
4278 | if (mac_table->state & IXGBE_MAC_STATE_IN_USE) { | |
4279 | if (mac_table->pool != pool) | |
4280 | continue; | |
4281 | } | |
4282 | ||
4283 | count++; | |
5d7daa35 | 4284 | } |
c9f53e63 | 4285 | |
5d7daa35 JK |
4286 | return count; |
4287 | } | |
4288 | ||
4289 | /* this function destroys the first RAR entry */ | |
c9f53e63 | 4290 | static void ixgbe_mac_set_default_filter(struct ixgbe_adapter *adapter) |
5d7daa35 | 4291 | { |
c9f53e63 | 4292 | struct ixgbe_mac_addr *mac_table = &adapter->mac_table[0]; |
5d7daa35 JK |
4293 | struct ixgbe_hw *hw = &adapter->hw; |
4294 | ||
c9f53e63 AD |
4295 | memcpy(&mac_table->addr, hw->mac.addr, ETH_ALEN); |
4296 | mac_table->pool = VMDQ_P(0); | |
4297 | ||
4298 | mac_table->state = IXGBE_MAC_STATE_DEFAULT | IXGBE_MAC_STATE_IN_USE; | |
4299 | ||
4300 | hw->mac.ops.set_rar(hw, 0, mac_table->addr, mac_table->pool, | |
5d7daa35 JK |
4301 | IXGBE_RAH_AV); |
4302 | } | |
4303 | ||
c9f53e63 AD |
4304 | int ixgbe_add_mac_filter(struct ixgbe_adapter *adapter, |
4305 | const u8 *addr, u16 pool) | |
5d7daa35 | 4306 | { |
c9f53e63 | 4307 | struct ixgbe_mac_addr *mac_table = &adapter->mac_table[0]; |
5d7daa35 JK |
4308 | struct ixgbe_hw *hw = &adapter->hw; |
4309 | int i; | |
4310 | ||
4311 | if (is_zero_ether_addr(addr)) | |
4312 | return -EINVAL; | |
4313 | ||
c9f53e63 AD |
4314 | for (i = 0; i < hw->mac.num_rar_entries; i++, mac_table++) { |
4315 | if (mac_table->state & IXGBE_MAC_STATE_IN_USE) | |
5d7daa35 | 4316 | continue; |
c9f53e63 AD |
4317 | |
4318 | ether_addr_copy(mac_table->addr, addr); | |
4319 | mac_table->pool = pool; | |
4320 | ||
4321 | mac_table->state |= IXGBE_MAC_STATE_MODIFIED | | |
4322 | IXGBE_MAC_STATE_IN_USE; | |
4323 | ||
5d7daa35 | 4324 | ixgbe_sync_mac_table(adapter); |
c9f53e63 | 4325 | |
5d7daa35 JK |
4326 | return i; |
4327 | } | |
c9f53e63 | 4328 | |
5d7daa35 JK |
4329 | return -ENOMEM; |
4330 | } | |
4331 | ||
c9f53e63 AD |
4332 | int ixgbe_del_mac_filter(struct ixgbe_adapter *adapter, |
4333 | const u8 *addr, u16 pool) | |
5d7daa35 | 4334 | { |
c9f53e63 | 4335 | struct ixgbe_mac_addr *mac_table = &adapter->mac_table[0]; |
5d7daa35 | 4336 | struct ixgbe_hw *hw = &adapter->hw; |
c9f53e63 | 4337 | int i; |
5d7daa35 JK |
4338 | |
4339 | if (is_zero_ether_addr(addr)) | |
4340 | return -EINVAL; | |
4341 | ||
c9f53e63 AD |
4342 | /* search table for addr, if found clear IN_USE flag and sync */ |
4343 | for (i = 0; i < hw->mac.num_rar_entries; i++, mac_table++) { | |
4344 | /* we can only delete an entry if it is in use */ | |
4345 | if (!(mac_table->state & IXGBE_MAC_STATE_IN_USE)) | |
4346 | continue; | |
4347 | /* we only care about entries that belong to the given pool */ | |
4348 | if (mac_table->pool != pool) | |
4349 | continue; | |
4350 | /* we only care about a specific MAC address */ | |
4351 | if (!ether_addr_equal(addr, mac_table->addr)) | |
4352 | continue; | |
4353 | ||
4354 | mac_table->state |= IXGBE_MAC_STATE_MODIFIED; | |
4355 | mac_table->state &= ~IXGBE_MAC_STATE_IN_USE; | |
4356 | ||
4357 | ixgbe_sync_mac_table(adapter); | |
4358 | ||
4359 | return 0; | |
5d7daa35 | 4360 | } |
c9f53e63 | 4361 | |
5d7daa35 JK |
4362 | return -ENOMEM; |
4363 | } | |
2850062a AD |
4364 | /** |
4365 | * ixgbe_write_uc_addr_list - write unicast addresses to RAR table | |
4366 | * @netdev: network interface device structure | |
4367 | * | |
4368 | * Writes unicast address list to the RAR table. | |
4369 | * Returns: -ENOMEM on failure/insufficient address space | |
4370 | * 0 on no addresses written | |
4371 | * X on writing X addresses to the RAR table | |
4372 | **/ | |
5d7daa35 | 4373 | static int ixgbe_write_uc_addr_list(struct net_device *netdev, int vfn) |
2850062a AD |
4374 | { |
4375 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
2850062a AD |
4376 | int count = 0; |
4377 | ||
4378 | /* return ENOMEM indicating insufficient memory for addresses */ | |
c9f53e63 | 4379 | if (netdev_uc_count(netdev) > ixgbe_available_rars(adapter, vfn)) |
2850062a AD |
4380 | return -ENOMEM; |
4381 | ||
95447461 | 4382 | if (!netdev_uc_empty(netdev)) { |
2850062a | 4383 | struct netdev_hw_addr *ha; |
2850062a | 4384 | netdev_for_each_uc_addr(ha, netdev) { |
5d7daa35 JK |
4385 | ixgbe_del_mac_filter(adapter, ha->addr, vfn); |
4386 | ixgbe_add_mac_filter(adapter, ha->addr, vfn); | |
2850062a AD |
4387 | count++; |
4388 | } | |
4389 | } | |
2850062a AD |
4390 | return count; |
4391 | } | |
4392 | ||
0f079d22 AD |
4393 | static int ixgbe_uc_sync(struct net_device *netdev, const unsigned char *addr) |
4394 | { | |
4395 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4396 | int ret; | |
4397 | ||
4398 | ret = ixgbe_add_mac_filter(adapter, addr, VMDQ_P(0)); | |
4399 | ||
4400 | return min_t(int, ret, 0); | |
4401 | } | |
4402 | ||
4403 | static int ixgbe_uc_unsync(struct net_device *netdev, const unsigned char *addr) | |
4404 | { | |
4405 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4406 | ||
4407 | ixgbe_del_mac_filter(adapter, addr, VMDQ_P(0)); | |
4408 | ||
4409 | return 0; | |
4410 | } | |
4411 | ||
9a799d71 | 4412 | /** |
2c5645cf | 4413 | * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set |
9a799d71 AK |
4414 | * @netdev: network interface device structure |
4415 | * | |
2c5645cf CL |
4416 | * The set_rx_method entry point is called whenever the unicast/multicast |
4417 | * address list or the network interface flags are updated. This routine is | |
4418 | * responsible for configuring the hardware for proper unicast, multicast and | |
4419 | * promiscuous mode. | |
9a799d71 | 4420 | **/ |
7f870475 | 4421 | void ixgbe_set_rx_mode(struct net_device *netdev) |
9a799d71 AK |
4422 | { |
4423 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4424 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a AD |
4425 | u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; |
4426 | int count; | |
9a799d71 AK |
4427 | |
4428 | /* Check for Promiscuous and All Multicast modes */ | |
9a799d71 AK |
4429 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); |
4430 | ||
f5dc442b | 4431 | /* set all bits that we expect to always be set */ |
3f2d1c0f | 4432 | fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */ |
f5dc442b AD |
4433 | fctrl |= IXGBE_FCTRL_BAM; |
4434 | fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ | |
4435 | fctrl |= IXGBE_FCTRL_PMCF; | |
4436 | ||
2850062a AD |
4437 | /* clear the bits we are changing the status of */ |
4438 | fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); | |
9a799d71 | 4439 | if (netdev->flags & IFF_PROMISC) { |
e433ea1f | 4440 | hw->addr_ctrl.user_set_promisc = true; |
9a799d71 | 4441 | fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
b335e75b | 4442 | vmolr |= IXGBE_VMOLR_MPE; |
16369564 | 4443 | ixgbe_vlan_promisc_enable(adapter); |
9a799d71 | 4444 | } else { |
746b9f02 PM |
4445 | if (netdev->flags & IFF_ALLMULTI) { |
4446 | fctrl |= IXGBE_FCTRL_MPE; | |
2850062a | 4447 | vmolr |= IXGBE_VMOLR_MPE; |
746b9f02 | 4448 | } |
e433ea1f | 4449 | hw->addr_ctrl.user_set_promisc = false; |
16369564 | 4450 | ixgbe_vlan_promisc_disable(adapter); |
9dcb373c JF |
4451 | } |
4452 | ||
4453 | /* | |
4454 | * Write addresses to available RAR registers, if there is not | |
4455 | * sufficient space to store all the addresses then enable | |
4456 | * unicast promiscuous mode | |
4457 | */ | |
0f079d22 | 4458 | if (__dev_uc_sync(netdev, ixgbe_uc_sync, ixgbe_uc_unsync)) { |
9dcb373c JF |
4459 | fctrl |= IXGBE_FCTRL_UPE; |
4460 | vmolr |= IXGBE_VMOLR_ROPE; | |
9a799d71 AK |
4461 | } |
4462 | ||
cf78959c ET |
4463 | /* Write addresses to the MTA, if the attempt fails |
4464 | * then we should just turn on promiscuous mode so | |
4465 | * that we can at least receive multicast traffic | |
4466 | */ | |
b335e75b JK |
4467 | count = ixgbe_write_mc_addr_list(netdev); |
4468 | if (count < 0) { | |
4469 | fctrl |= IXGBE_FCTRL_MPE; | |
4470 | vmolr |= IXGBE_VMOLR_MPE; | |
4471 | } else if (count) { | |
4472 | vmolr |= IXGBE_VMOLR_ROMPE; | |
4473 | } | |
1d9c0bfd AD |
4474 | |
4475 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
4476 | vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(VMDQ_P(0))) & | |
2850062a AD |
4477 | ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | |
4478 | IXGBE_VMOLR_ROPE); | |
1d9c0bfd | 4479 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(VMDQ_P(0)), vmolr); |
2850062a AD |
4480 | } |
4481 | ||
3f2d1c0f BG |
4482 | /* This is useful for sniffing bad packets. */ |
4483 | if (adapter->netdev->features & NETIF_F_RXALL) { | |
4484 | /* UPE and MPE will be handled by normal PROMISC logic | |
4485 | * in e1000e_set_rx_mode */ | |
4486 | fctrl |= (IXGBE_FCTRL_SBP | /* Receive bad packets */ | |
4487 | IXGBE_FCTRL_BAM | /* RX All Bcast Pkts */ | |
4488 | IXGBE_FCTRL_PMCF); /* RX All MAC Ctrl Pkts */ | |
4489 | ||
4490 | fctrl &= ~(IXGBE_FCTRL_DPF); | |
4491 | /* NOTE: VLAN filtering is disabled by setting PROMISC */ | |
4492 | } | |
4493 | ||
2850062a | 4494 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); |
f62bbb5e | 4495 | |
f646968f | 4496 | if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) |
f62bbb5e JG |
4497 | ixgbe_vlan_strip_enable(adapter); |
4498 | else | |
4499 | ixgbe_vlan_strip_disable(adapter); | |
9a799d71 AK |
4500 | } |
4501 | ||
021230d4 AV |
4502 | static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter) |
4503 | { | |
4504 | int q_idx; | |
021230d4 | 4505 | |
5a85e737 ET |
4506 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { |
4507 | ixgbe_qv_init_lock(adapter->q_vector[q_idx]); | |
49c7ffbe | 4508 | napi_enable(&adapter->q_vector[q_idx]->napi); |
5a85e737 | 4509 | } |
021230d4 AV |
4510 | } |
4511 | ||
4512 | static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter) | |
4513 | { | |
4514 | int q_idx; | |
021230d4 | 4515 | |
5a85e737 | 4516 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { |
49c7ffbe | 4517 | napi_disable(&adapter->q_vector[q_idx]->napi); |
27d9ce4f | 4518 | while (!ixgbe_qv_disable(adapter->q_vector[q_idx])) { |
5a85e737 | 4519 | pr_info("QV %d locked\n", q_idx); |
27d9ce4f | 4520 | usleep_range(1000, 20000); |
5a85e737 ET |
4521 | } |
4522 | } | |
021230d4 AV |
4523 | } |
4524 | ||
67359c3c MR |
4525 | static void ixgbe_clear_vxlan_port(struct ixgbe_adapter *adapter) |
4526 | { | |
4527 | switch (adapter->hw.mac.type) { | |
4528 | case ixgbe_mac_X550: | |
4529 | case ixgbe_mac_X550EM_x: | |
4530 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_VXLANCTRL, 0); | |
4531 | #ifdef CONFIG_IXGBE_VXLAN | |
4532 | adapter->vxlan_port = 0; | |
4533 | #endif | |
4534 | break; | |
4535 | default: | |
4536 | break; | |
4537 | } | |
4538 | } | |
4539 | ||
7a6b6f51 | 4540 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c | 4541 | /** |
2f90b865 AD |
4542 | * ixgbe_configure_dcb - Configure DCB hardware |
4543 | * @adapter: ixgbe adapter struct | |
4544 | * | |
4545 | * This is called by the driver on open to configure the DCB hardware. | |
4546 | * This is also called by the gennetlink interface when reconfiguring | |
4547 | * the DCB state. | |
4548 | */ | |
4549 | static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) | |
4550 | { | |
4551 | struct ixgbe_hw *hw = &adapter->hw; | |
9806307a | 4552 | int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
2f90b865 | 4553 | |
67ebd791 AD |
4554 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) { |
4555 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4556 | netif_set_gso_max_size(adapter->netdev, 65536); | |
4557 | return; | |
4558 | } | |
4559 | ||
4560 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4561 | netif_set_gso_max_size(adapter->netdev, 32768); | |
4562 | ||
971060b1 | 4563 | #ifdef IXGBE_FCOE |
b120818e JF |
4564 | if (adapter->netdev->features & NETIF_F_FCOE_MTU) |
4565 | max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
c27931da | 4566 | #endif |
b120818e JF |
4567 | |
4568 | /* reconfigure the hardware */ | |
4569 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) { | |
c27931da JF |
4570 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, |
4571 | DCB_TX_CONFIG); | |
4572 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, | |
4573 | DCB_RX_CONFIG); | |
4574 | ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg); | |
b120818e JF |
4575 | } else if (adapter->ixgbe_ieee_ets && adapter->ixgbe_ieee_pfc) { |
4576 | ixgbe_dcb_hw_ets(&adapter->hw, | |
4577 | adapter->ixgbe_ieee_ets, | |
4578 | max_frame); | |
4579 | ixgbe_dcb_hw_pfc_config(&adapter->hw, | |
4580 | adapter->ixgbe_ieee_pfc->pfc_en, | |
4581 | adapter->ixgbe_ieee_ets->prio_tc); | |
c27931da | 4582 | } |
8187cd48 JF |
4583 | |
4584 | /* Enable RSS Hash per TC */ | |
4585 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
4ae63730 AD |
4586 | u32 msb = 0; |
4587 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices - 1; | |
8187cd48 | 4588 | |
d411a936 AD |
4589 | while (rss_i) { |
4590 | msb++; | |
4591 | rss_i >>= 1; | |
4592 | } | |
8187cd48 | 4593 | |
4ae63730 AD |
4594 | /* write msb to all 8 TCs in one write */ |
4595 | IXGBE_WRITE_REG(hw, IXGBE_RQTC, msb * 0x11111111); | |
8187cd48 | 4596 | } |
2f90b865 | 4597 | } |
9da712d2 JF |
4598 | #endif |
4599 | ||
4600 | /* Additional bittime to account for IXGBE framing */ | |
4601 | #define IXGBE_ETH_FRAMING 20 | |
4602 | ||
49ce9c2c | 4603 | /** |
9da712d2 JF |
4604 | * ixgbe_hpbthresh - calculate high water mark for flow control |
4605 | * | |
4606 | * @adapter: board private structure to calculate for | |
49ce9c2c | 4607 | * @pb: packet buffer to calculate |
9da712d2 JF |
4608 | */ |
4609 | static int ixgbe_hpbthresh(struct ixgbe_adapter *adapter, int pb) | |
4610 | { | |
4611 | struct ixgbe_hw *hw = &adapter->hw; | |
4612 | struct net_device *dev = adapter->netdev; | |
4613 | int link, tc, kb, marker; | |
4614 | u32 dv_id, rx_pba; | |
4615 | ||
4616 | /* Calculate max LAN frame size */ | |
4617 | tc = link = dev->mtu + ETH_HLEN + ETH_FCS_LEN + IXGBE_ETH_FRAMING; | |
4618 | ||
4619 | #ifdef IXGBE_FCOE | |
4620 | /* FCoE traffic class uses FCOE jumbo frames */ | |
800bd607 AD |
4621 | if ((dev->features & NETIF_F_FCOE_MTU) && |
4622 | (tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) && | |
4623 | (pb == ixgbe_fcoe_get_tc(adapter))) | |
4624 | tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9da712d2 | 4625 | #endif |
e5776620 | 4626 | |
9da712d2 JF |
4627 | /* Calculate delay value for device */ |
4628 | switch (hw->mac.type) { | |
4629 | case ixgbe_mac_X540: | |
9a75a1ac DS |
4630 | case ixgbe_mac_X550: |
4631 | case ixgbe_mac_X550EM_x: | |
9da712d2 JF |
4632 | dv_id = IXGBE_DV_X540(link, tc); |
4633 | break; | |
4634 | default: | |
4635 | dv_id = IXGBE_DV(link, tc); | |
4636 | break; | |
4637 | } | |
4638 | ||
4639 | /* Loopback switch introduces additional latency */ | |
4640 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
4641 | dv_id += IXGBE_B2BT(tc); | |
4642 | ||
4643 | /* Delay value is calculated in bit times convert to KB */ | |
4644 | kb = IXGBE_BT2KB(dv_id); | |
4645 | rx_pba = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(pb)) >> 10; | |
4646 | ||
4647 | marker = rx_pba - kb; | |
4648 | ||
4649 | /* It is possible that the packet buffer is not large enough | |
4650 | * to provide required headroom. In this case throw an error | |
4651 | * to user and a do the best we can. | |
4652 | */ | |
4653 | if (marker < 0) { | |
4654 | e_warn(drv, "Packet Buffer(%i) can not provide enough" | |
4655 | "headroom to support flow control." | |
4656 | "Decrease MTU or number of traffic classes\n", pb); | |
4657 | marker = tc + 1; | |
4658 | } | |
4659 | ||
4660 | return marker; | |
4661 | } | |
4662 | ||
49ce9c2c | 4663 | /** |
9da712d2 JF |
4664 | * ixgbe_lpbthresh - calculate low water mark for for flow control |
4665 | * | |
4666 | * @adapter: board private structure to calculate for | |
49ce9c2c | 4667 | * @pb: packet buffer to calculate |
9da712d2 | 4668 | */ |
e5776620 | 4669 | static int ixgbe_lpbthresh(struct ixgbe_adapter *adapter, int pb) |
9da712d2 JF |
4670 | { |
4671 | struct ixgbe_hw *hw = &adapter->hw; | |
4672 | struct net_device *dev = adapter->netdev; | |
4673 | int tc; | |
4674 | u32 dv_id; | |
4675 | ||
4676 | /* Calculate max LAN frame size */ | |
4677 | tc = dev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
4678 | ||
e5776620 JK |
4679 | #ifdef IXGBE_FCOE |
4680 | /* FCoE traffic class uses FCOE jumbo frames */ | |
4681 | if ((dev->features & NETIF_F_FCOE_MTU) && | |
4682 | (tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) && | |
4683 | (pb == netdev_get_prio_tc_map(dev, adapter->fcoe.up))) | |
4684 | tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
4685 | #endif | |
4686 | ||
9da712d2 JF |
4687 | /* Calculate delay value for device */ |
4688 | switch (hw->mac.type) { | |
4689 | case ixgbe_mac_X540: | |
9a75a1ac DS |
4690 | case ixgbe_mac_X550: |
4691 | case ixgbe_mac_X550EM_x: | |
9da712d2 JF |
4692 | dv_id = IXGBE_LOW_DV_X540(tc); |
4693 | break; | |
4694 | default: | |
4695 | dv_id = IXGBE_LOW_DV(tc); | |
4696 | break; | |
4697 | } | |
4698 | ||
4699 | /* Delay value is calculated in bit times convert to KB */ | |
4700 | return IXGBE_BT2KB(dv_id); | |
4701 | } | |
4702 | ||
4703 | /* | |
4704 | * ixgbe_pbthresh_setup - calculate and setup high low water marks | |
4705 | */ | |
4706 | static void ixgbe_pbthresh_setup(struct ixgbe_adapter *adapter) | |
4707 | { | |
4708 | struct ixgbe_hw *hw = &adapter->hw; | |
4709 | int num_tc = netdev_get_num_tc(adapter->netdev); | |
4710 | int i; | |
4711 | ||
4712 | if (!num_tc) | |
4713 | num_tc = 1; | |
4714 | ||
9da712d2 JF |
4715 | for (i = 0; i < num_tc; i++) { |
4716 | hw->fc.high_water[i] = ixgbe_hpbthresh(adapter, i); | |
e5776620 | 4717 | hw->fc.low_water[i] = ixgbe_lpbthresh(adapter, i); |
9da712d2 JF |
4718 | |
4719 | /* Low water marks must not be larger than high water marks */ | |
e5776620 JK |
4720 | if (hw->fc.low_water[i] > hw->fc.high_water[i]) |
4721 | hw->fc.low_water[i] = 0; | |
9da712d2 | 4722 | } |
e5776620 JK |
4723 | |
4724 | for (; i < MAX_TRAFFIC_CLASS; i++) | |
4725 | hw->fc.high_water[i] = 0; | |
9da712d2 JF |
4726 | } |
4727 | ||
80605c65 JF |
4728 | static void ixgbe_configure_pb(struct ixgbe_adapter *adapter) |
4729 | { | |
80605c65 | 4730 | struct ixgbe_hw *hw = &adapter->hw; |
f7e1027f AD |
4731 | int hdrm; |
4732 | u8 tc = netdev_get_num_tc(adapter->netdev); | |
80605c65 JF |
4733 | |
4734 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || | |
4735 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
f7e1027f AD |
4736 | hdrm = 32 << adapter->fdir_pballoc; |
4737 | else | |
4738 | hdrm = 0; | |
80605c65 | 4739 | |
f7e1027f | 4740 | hw->mac.ops.set_rxpba(hw, tc, hdrm, PBA_STRATEGY_EQUAL); |
9da712d2 | 4741 | ixgbe_pbthresh_setup(adapter); |
80605c65 JF |
4742 | } |
4743 | ||
e4911d57 AD |
4744 | static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter) |
4745 | { | |
4746 | struct ixgbe_hw *hw = &adapter->hw; | |
b67bfe0d | 4747 | struct hlist_node *node2; |
e4911d57 AD |
4748 | struct ixgbe_fdir_filter *filter; |
4749 | ||
4750 | spin_lock(&adapter->fdir_perfect_lock); | |
4751 | ||
4752 | if (!hlist_empty(&adapter->fdir_filter_list)) | |
4753 | ixgbe_fdir_set_input_mask_82599(hw, &adapter->fdir_mask); | |
4754 | ||
b67bfe0d | 4755 | hlist_for_each_entry_safe(filter, node2, |
e4911d57 AD |
4756 | &adapter->fdir_filter_list, fdir_node) { |
4757 | ixgbe_fdir_write_perfect_filter_82599(hw, | |
1f4d5183 AD |
4758 | &filter->filter, |
4759 | filter->sw_idx, | |
4760 | (filter->action == IXGBE_FDIR_DROP_QUEUE) ? | |
4761 | IXGBE_FDIR_DROP_QUEUE : | |
4762 | adapter->rx_ring[filter->action]->reg_idx); | |
e4911d57 AD |
4763 | } |
4764 | ||
4765 | spin_unlock(&adapter->fdir_perfect_lock); | |
4766 | } | |
4767 | ||
2a47fa45 JF |
4768 | static void ixgbe_macvlan_set_rx_mode(struct net_device *dev, unsigned int pool, |
4769 | struct ixgbe_adapter *adapter) | |
4770 | { | |
4771 | struct ixgbe_hw *hw = &adapter->hw; | |
4772 | u32 vmolr; | |
4773 | ||
4774 | /* No unicast promiscuous support for VMDQ devices. */ | |
4775 | vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(pool)); | |
4776 | vmolr |= (IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE); | |
4777 | ||
4778 | /* clear the affected bit */ | |
4779 | vmolr &= ~IXGBE_VMOLR_MPE; | |
4780 | ||
4781 | if (dev->flags & IFF_ALLMULTI) { | |
4782 | vmolr |= IXGBE_VMOLR_MPE; | |
4783 | } else { | |
4784 | vmolr |= IXGBE_VMOLR_ROMPE; | |
4785 | hw->mac.ops.update_mc_addr_list(hw, dev); | |
4786 | } | |
5d7daa35 | 4787 | ixgbe_write_uc_addr_list(adapter->netdev, pool); |
2a47fa45 JF |
4788 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(pool), vmolr); |
4789 | } | |
4790 | ||
2a47fa45 JF |
4791 | static void ixgbe_fwd_psrtype(struct ixgbe_fwd_adapter *vadapter) |
4792 | { | |
4793 | struct ixgbe_adapter *adapter = vadapter->real_adapter; | |
219354d4 | 4794 | int rss_i = adapter->num_rx_queues_per_pool; |
2a47fa45 JF |
4795 | struct ixgbe_hw *hw = &adapter->hw; |
4796 | u16 pool = vadapter->pool; | |
4797 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
4798 | IXGBE_PSRTYPE_UDPHDR | | |
4799 | IXGBE_PSRTYPE_IPV4HDR | | |
4800 | IXGBE_PSRTYPE_L2HDR | | |
4801 | IXGBE_PSRTYPE_IPV6HDR; | |
4802 | ||
4803 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4804 | return; | |
4805 | ||
4806 | if (rss_i > 3) | |
4807 | psrtype |= 2 << 29; | |
4808 | else if (rss_i > 1) | |
4809 | psrtype |= 1 << 29; | |
4810 | ||
4811 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype); | |
4812 | } | |
4813 | ||
4814 | /** | |
4815 | * ixgbe_clean_rx_ring - Free Rx Buffers per Queue | |
4816 | * @rx_ring: ring to free buffers from | |
4817 | **/ | |
4818 | static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring) | |
4819 | { | |
4820 | struct device *dev = rx_ring->dev; | |
4821 | unsigned long size; | |
4822 | u16 i; | |
4823 | ||
4824 | /* ring already cleared, nothing to do */ | |
4825 | if (!rx_ring->rx_buffer_info) | |
4826 | return; | |
4827 | ||
4828 | /* Free all the Rx ring sk_buffs */ | |
4829 | for (i = 0; i < rx_ring->count; i++) { | |
18cb652a | 4830 | struct ixgbe_rx_buffer *rx_buffer = &rx_ring->rx_buffer_info[i]; |
2a47fa45 | 4831 | |
2a47fa45 JF |
4832 | if (rx_buffer->skb) { |
4833 | struct sk_buff *skb = rx_buffer->skb; | |
18cb652a | 4834 | if (IXGBE_CB(skb)->page_released) |
2a47fa45 JF |
4835 | dma_unmap_page(dev, |
4836 | IXGBE_CB(skb)->dma, | |
4837 | ixgbe_rx_bufsz(rx_ring), | |
4838 | DMA_FROM_DEVICE); | |
2a47fa45 | 4839 | dev_kfree_skb(skb); |
4d2fcfbc | 4840 | rx_buffer->skb = NULL; |
2a47fa45 | 4841 | } |
18cb652a AD |
4842 | |
4843 | if (!rx_buffer->page) | |
4844 | continue; | |
4845 | ||
4846 | dma_unmap_page(dev, rx_buffer->dma, | |
4847 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
4848 | __free_pages(rx_buffer->page, ixgbe_rx_pg_order(rx_ring)); | |
4849 | ||
2a47fa45 JF |
4850 | rx_buffer->page = NULL; |
4851 | } | |
4852 | ||
4853 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; | |
4854 | memset(rx_ring->rx_buffer_info, 0, size); | |
4855 | ||
4856 | /* Zero out the descriptor ring */ | |
4857 | memset(rx_ring->desc, 0, rx_ring->size); | |
4858 | ||
4859 | rx_ring->next_to_alloc = 0; | |
4860 | rx_ring->next_to_clean = 0; | |
4861 | rx_ring->next_to_use = 0; | |
4862 | } | |
4863 | ||
4864 | static void ixgbe_disable_fwd_ring(struct ixgbe_fwd_adapter *vadapter, | |
4865 | struct ixgbe_ring *rx_ring) | |
4866 | { | |
4867 | struct ixgbe_adapter *adapter = vadapter->real_adapter; | |
4868 | int index = rx_ring->queue_index + vadapter->rx_base_queue; | |
4869 | ||
4870 | /* shutdown specific queue receive and wait for dma to settle */ | |
4871 | ixgbe_disable_rx_queue(adapter, rx_ring); | |
4872 | usleep_range(10000, 20000); | |
4873 | ixgbe_irq_disable_queues(adapter, ((u64)1 << index)); | |
4874 | ixgbe_clean_rx_ring(rx_ring); | |
4875 | rx_ring->l2_accel_priv = NULL; | |
4876 | } | |
4877 | ||
ae72c8d0 JF |
4878 | static int ixgbe_fwd_ring_down(struct net_device *vdev, |
4879 | struct ixgbe_fwd_adapter *accel) | |
2a47fa45 JF |
4880 | { |
4881 | struct ixgbe_adapter *adapter = accel->real_adapter; | |
4882 | unsigned int rxbase = accel->rx_base_queue; | |
4883 | unsigned int txbase = accel->tx_base_queue; | |
4884 | int i; | |
4885 | ||
4886 | netif_tx_stop_all_queues(vdev); | |
4887 | ||
4888 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4889 | ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]); | |
4890 | adapter->rx_ring[rxbase + i]->netdev = adapter->netdev; | |
4891 | } | |
4892 | ||
4893 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4894 | adapter->tx_ring[txbase + i]->l2_accel_priv = NULL; | |
4895 | adapter->tx_ring[txbase + i]->netdev = adapter->netdev; | |
4896 | } | |
4897 | ||
4898 | ||
4899 | return 0; | |
4900 | } | |
4901 | ||
4902 | static int ixgbe_fwd_ring_up(struct net_device *vdev, | |
4903 | struct ixgbe_fwd_adapter *accel) | |
4904 | { | |
4905 | struct ixgbe_adapter *adapter = accel->real_adapter; | |
4906 | unsigned int rxbase, txbase, queues; | |
4907 | int i, baseq, err = 0; | |
4908 | ||
4909 | if (!test_bit(accel->pool, &adapter->fwd_bitmask)) | |
4910 | return 0; | |
4911 | ||
4912 | baseq = accel->pool * adapter->num_rx_queues_per_pool; | |
4913 | netdev_dbg(vdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n", | |
4914 | accel->pool, adapter->num_rx_pools, | |
4915 | baseq, baseq + adapter->num_rx_queues_per_pool, | |
4916 | adapter->fwd_bitmask); | |
4917 | ||
4918 | accel->netdev = vdev; | |
4919 | accel->rx_base_queue = rxbase = baseq; | |
4920 | accel->tx_base_queue = txbase = baseq; | |
4921 | ||
4922 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) | |
4923 | ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]); | |
4924 | ||
4925 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4926 | adapter->rx_ring[rxbase + i]->netdev = vdev; | |
4927 | adapter->rx_ring[rxbase + i]->l2_accel_priv = accel; | |
4928 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[rxbase + i]); | |
4929 | } | |
4930 | ||
4931 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4932 | adapter->tx_ring[txbase + i]->netdev = vdev; | |
4933 | adapter->tx_ring[txbase + i]->l2_accel_priv = accel; | |
4934 | } | |
4935 | ||
4936 | queues = min_t(unsigned int, | |
4937 | adapter->num_rx_queues_per_pool, vdev->num_tx_queues); | |
4938 | err = netif_set_real_num_tx_queues(vdev, queues); | |
4939 | if (err) | |
4940 | goto fwd_queue_err; | |
4941 | ||
2a47fa45 JF |
4942 | err = netif_set_real_num_rx_queues(vdev, queues); |
4943 | if (err) | |
4944 | goto fwd_queue_err; | |
4945 | ||
4946 | if (is_valid_ether_addr(vdev->dev_addr)) | |
4947 | ixgbe_add_mac_filter(adapter, vdev->dev_addr, accel->pool); | |
4948 | ||
4949 | ixgbe_fwd_psrtype(accel); | |
4950 | ixgbe_macvlan_set_rx_mode(vdev, accel->pool, adapter); | |
4951 | return err; | |
4952 | fwd_queue_err: | |
4953 | ixgbe_fwd_ring_down(vdev, accel); | |
4954 | return err; | |
4955 | } | |
4956 | ||
4957 | static void ixgbe_configure_dfwd(struct ixgbe_adapter *adapter) | |
4958 | { | |
4959 | struct net_device *upper; | |
4960 | struct list_head *iter; | |
4961 | int err; | |
4962 | ||
4963 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
4964 | if (netif_is_macvlan(upper)) { | |
4965 | struct macvlan_dev *dfwd = netdev_priv(upper); | |
4966 | struct ixgbe_fwd_adapter *vadapter = dfwd->fwd_priv; | |
4967 | ||
4968 | if (dfwd->fwd_priv) { | |
4969 | err = ixgbe_fwd_ring_up(upper, vadapter); | |
4970 | if (err) | |
4971 | continue; | |
4972 | } | |
4973 | } | |
4974 | } | |
4975 | } | |
4976 | ||
9a799d71 AK |
4977 | static void ixgbe_configure(struct ixgbe_adapter *adapter) |
4978 | { | |
d2f5e7f3 AS |
4979 | struct ixgbe_hw *hw = &adapter->hw; |
4980 | ||
80605c65 | 4981 | ixgbe_configure_pb(adapter); |
7a6b6f51 | 4982 | #ifdef CONFIG_IXGBE_DCB |
67ebd791 | 4983 | ixgbe_configure_dcb(adapter); |
2f90b865 | 4984 | #endif |
b35d4d42 AD |
4985 | /* |
4986 | * We must restore virtualization before VLANs or else | |
4987 | * the VLVF registers will not be populated | |
4988 | */ | |
4989 | ixgbe_configure_virtualization(adapter); | |
9a799d71 | 4990 | |
4c1d7b4b | 4991 | ixgbe_set_rx_mode(adapter->netdev); |
f62bbb5e JG |
4992 | ixgbe_restore_vlan(adapter); |
4993 | ||
d2f5e7f3 AS |
4994 | switch (hw->mac.type) { |
4995 | case ixgbe_mac_82599EB: | |
4996 | case ixgbe_mac_X540: | |
4997 | hw->mac.ops.disable_rx_buff(hw); | |
4998 | break; | |
4999 | default: | |
5000 | break; | |
5001 | } | |
5002 | ||
c4cf55e5 | 5003 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
4c1d7b4b AD |
5004 | ixgbe_init_fdir_signature_82599(&adapter->hw, |
5005 | adapter->fdir_pballoc); | |
e4911d57 AD |
5006 | } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { |
5007 | ixgbe_init_fdir_perfect_82599(&adapter->hw, | |
5008 | adapter->fdir_pballoc); | |
5009 | ixgbe_fdir_filter_restore(adapter); | |
c4cf55e5 | 5010 | } |
4c1d7b4b | 5011 | |
d2f5e7f3 AS |
5012 | switch (hw->mac.type) { |
5013 | case ixgbe_mac_82599EB: | |
5014 | case ixgbe_mac_X540: | |
5015 | hw->mac.ops.enable_rx_buff(hw); | |
5016 | break; | |
5017 | default: | |
5018 | break; | |
5019 | } | |
5020 | ||
9de7605e MR |
5021 | #ifdef CONFIG_IXGBE_DCA |
5022 | /* configure DCA */ | |
5023 | if (adapter->flags & IXGBE_FLAG_DCA_CAPABLE) | |
5024 | ixgbe_setup_dca(adapter); | |
5025 | #endif /* CONFIG_IXGBE_DCA */ | |
5026 | ||
7c8ae65a AD |
5027 | #ifdef IXGBE_FCOE |
5028 | /* configure FCoE L2 filters, redirection table, and Rx control */ | |
5029 | ixgbe_configure_fcoe(adapter); | |
5030 | ||
5031 | #endif /* IXGBE_FCOE */ | |
9a799d71 AK |
5032 | ixgbe_configure_tx(adapter); |
5033 | ixgbe_configure_rx(adapter); | |
2a47fa45 | 5034 | ixgbe_configure_dfwd(adapter); |
9a799d71 AK |
5035 | } |
5036 | ||
0ecc061d | 5037 | /** |
e8e26350 PW |
5038 | * ixgbe_sfp_link_config - set up SFP+ link |
5039 | * @adapter: pointer to private adapter struct | |
5040 | **/ | |
5041 | static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) | |
5042 | { | |
7086400d | 5043 | /* |
52f33af8 | 5044 | * We are assuming the worst case scenario here, and that |
7086400d AD |
5045 | * is that an SFP was inserted/removed after the reset |
5046 | * but before SFP detection was enabled. As such the best | |
5047 | * solution is to just start searching as soon as we start | |
5048 | */ | |
5049 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
5050 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
e8e26350 | 5051 | |
7086400d | 5052 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; |
58e7cd24 | 5053 | adapter->sfp_poll_time = 0; |
e8e26350 PW |
5054 | } |
5055 | ||
5056 | /** | |
5057 | * ixgbe_non_sfp_link_config - set up non-SFP+ link | |
0ecc061d PWJ |
5058 | * @hw: pointer to private hardware struct |
5059 | * | |
5060 | * Returns 0 on success, negative on failure | |
5061 | **/ | |
e8e26350 | 5062 | static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) |
0ecc061d | 5063 | { |
3d292265 JH |
5064 | u32 speed; |
5065 | bool autoneg, link_up = false; | |
a1e869de | 5066 | int ret = IXGBE_ERR_LINK_SETUP; |
0ecc061d PWJ |
5067 | |
5068 | if (hw->mac.ops.check_link) | |
3d292265 | 5069 | ret = hw->mac.ops.check_link(hw, &speed, &link_up, false); |
0ecc061d PWJ |
5070 | |
5071 | if (ret) | |
e90dd264 | 5072 | return ret; |
0ecc061d | 5073 | |
3d292265 JH |
5074 | speed = hw->phy.autoneg_advertised; |
5075 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) | |
5076 | ret = hw->mac.ops.get_link_capabilities(hw, &speed, | |
5077 | &autoneg); | |
0ecc061d | 5078 | if (ret) |
e90dd264 | 5079 | return ret; |
0ecc061d | 5080 | |
8620a103 | 5081 | if (hw->mac.ops.setup_link) |
fd0326f2 | 5082 | ret = hw->mac.ops.setup_link(hw, speed, link_up); |
e90dd264 | 5083 | |
0ecc061d PWJ |
5084 | return ret; |
5085 | } | |
5086 | ||
a34bcfff | 5087 | static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter) |
9a799d71 | 5088 | { |
9a799d71 | 5089 | struct ixgbe_hw *hw = &adapter->hw; |
a34bcfff | 5090 | u32 gpie = 0; |
9a799d71 | 5091 | |
9b471446 | 5092 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
a34bcfff AD |
5093 | gpie = IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT | |
5094 | IXGBE_GPIE_OCD; | |
5095 | gpie |= IXGBE_GPIE_EIAME; | |
9b471446 JB |
5096 | /* |
5097 | * use EIAM to auto-mask when MSI-X interrupt is asserted | |
5098 | * this saves a register write for every interrupt | |
5099 | */ | |
5100 | switch (hw->mac.type) { | |
5101 | case ixgbe_mac_82598EB: | |
5102 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
5103 | break; | |
9b471446 | 5104 | case ixgbe_mac_82599EB: |
b93a2226 | 5105 | case ixgbe_mac_X540: |
9a75a1ac DS |
5106 | case ixgbe_mac_X550: |
5107 | case ixgbe_mac_X550EM_x: | |
b93a2226 | 5108 | default: |
9b471446 JB |
5109 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF); |
5110 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF); | |
5111 | break; | |
5112 | } | |
5113 | } else { | |
021230d4 AV |
5114 | /* legacy interrupts, use EIAM to auto-mask when reading EICR, |
5115 | * specifically only auto mask tx and rx interrupts */ | |
5116 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
5117 | } | |
9a799d71 | 5118 | |
a34bcfff AD |
5119 | /* XXX: to interrupt immediately for EICS writes, enable this */ |
5120 | /* gpie |= IXGBE_GPIE_EIMEN; */ | |
5121 | ||
5122 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
5123 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
73079ea0 AD |
5124 | |
5125 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { | |
5126 | case IXGBE_82599_VMDQ_8Q_MASK: | |
5127 | gpie |= IXGBE_GPIE_VTMODE_16; | |
5128 | break; | |
5129 | case IXGBE_82599_VMDQ_4Q_MASK: | |
5130 | gpie |= IXGBE_GPIE_VTMODE_32; | |
5131 | break; | |
5132 | default: | |
5133 | gpie |= IXGBE_GPIE_VTMODE_64; | |
5134 | break; | |
5135 | } | |
119fc60a MC |
5136 | } |
5137 | ||
5fdd31f9 | 5138 | /* Enable Thermal over heat sensor interrupt */ |
f3df98ec DS |
5139 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { |
5140 | switch (adapter->hw.mac.type) { | |
5141 | case ixgbe_mac_82599EB: | |
9a900eca | 5142 | gpie |= IXGBE_SDP0_GPIEN_8259X; |
f3df98ec | 5143 | break; |
f3df98ec DS |
5144 | default: |
5145 | break; | |
5146 | } | |
5147 | } | |
5fdd31f9 | 5148 | |
a34bcfff AD |
5149 | /* Enable fan failure interrupt */ |
5150 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) | |
9a900eca | 5151 | gpie |= IXGBE_SDP1_GPIEN(hw); |
0befdb3e | 5152 | |
a023bbd0 DS |
5153 | switch (hw->mac.type) { |
5154 | case ixgbe_mac_82599EB: | |
5155 | gpie |= IXGBE_SDP1_GPIEN_8259X | IXGBE_SDP2_GPIEN_8259X; | |
5156 | break; | |
5157 | case ixgbe_mac_X550EM_x: | |
5158 | gpie |= IXGBE_SDP0_GPIEN_X540; | |
5159 | break; | |
5160 | default: | |
5161 | break; | |
2698b208 | 5162 | } |
a34bcfff AD |
5163 | |
5164 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
5165 | } | |
5166 | ||
c7ccde0f | 5167 | static void ixgbe_up_complete(struct ixgbe_adapter *adapter) |
a34bcfff AD |
5168 | { |
5169 | struct ixgbe_hw *hw = &adapter->hw; | |
a34bcfff | 5170 | int err; |
a34bcfff AD |
5171 | u32 ctrl_ext; |
5172 | ||
5173 | ixgbe_get_hw_control(adapter); | |
5174 | ixgbe_setup_gpie(adapter); | |
e8e26350 | 5175 | |
9a799d71 AK |
5176 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
5177 | ixgbe_configure_msix(adapter); | |
5178 | else | |
5179 | ixgbe_configure_msi_and_legacy(adapter); | |
5180 | ||
ec74a471 ET |
5181 | /* enable the optics for 82599 SFP+ fiber */ |
5182 | if (hw->mac.ops.enable_tx_laser) | |
61fac744 PW |
5183 | hw->mac.ops.enable_tx_laser(hw); |
5184 | ||
961fac88 DS |
5185 | if (hw->phy.ops.set_phy_power) |
5186 | hw->phy.ops.set_phy_power(hw, true); | |
5187 | ||
4e857c58 | 5188 | smp_mb__before_atomic(); |
9a799d71 | 5189 | clear_bit(__IXGBE_DOWN, &adapter->state); |
021230d4 AV |
5190 | ixgbe_napi_enable_all(adapter); |
5191 | ||
73c4b7cd AD |
5192 | if (ixgbe_is_sfp(hw)) { |
5193 | ixgbe_sfp_link_config(adapter); | |
5194 | } else { | |
5195 | err = ixgbe_non_sfp_link_config(hw); | |
5196 | if (err) | |
5197 | e_err(probe, "link_config FAILED %d\n", err); | |
5198 | } | |
5199 | ||
021230d4 AV |
5200 | /* clear any pending interrupts, may auto mask */ |
5201 | IXGBE_READ_REG(hw, IXGBE_EICR); | |
6af3b9eb | 5202 | ixgbe_irq_enable(adapter, true, true); |
9a799d71 | 5203 | |
bf069c97 DS |
5204 | /* |
5205 | * If this adapter has a fan, check to see if we had a failure | |
5206 | * before we enabled the interrupt. | |
5207 | */ | |
5208 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
5209 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
5210 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 5211 | e_crit(drv, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
5212 | } |
5213 | ||
9a799d71 AK |
5214 | /* bring the link up in the watchdog, this could race with our first |
5215 | * link up interrupt but shouldn't be a problem */ | |
cf8280ee JB |
5216 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
5217 | adapter->link_check_timeout = jiffies; | |
7086400d | 5218 | mod_timer(&adapter->service_timer, jiffies); |
c9205697 GR |
5219 | |
5220 | /* Set PF Reset Done bit so PF/VF Mail Ops can work */ | |
5221 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); | |
5222 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; | |
5223 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); | |
9a799d71 AK |
5224 | } |
5225 | ||
d4f80882 AV |
5226 | void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) |
5227 | { | |
5228 | WARN_ON(in_interrupt()); | |
7086400d AD |
5229 | /* put off any impending NetWatchDogTimeout */ |
5230 | adapter->netdev->trans_start = jiffies; | |
5231 | ||
d4f80882 | 5232 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
032b4325 | 5233 | usleep_range(1000, 2000); |
d4f80882 | 5234 | ixgbe_down(adapter); |
5809a1ae GR |
5235 | /* |
5236 | * If SR-IOV enabled then wait a bit before bringing the adapter | |
5237 | * back up to give the VFs time to respond to the reset. The | |
5238 | * two second wait is based upon the watchdog timer cycle in | |
5239 | * the VF driver. | |
5240 | */ | |
5241 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
5242 | msleep(2000); | |
d4f80882 AV |
5243 | ixgbe_up(adapter); |
5244 | clear_bit(__IXGBE_RESETTING, &adapter->state); | |
5245 | } | |
5246 | ||
c7ccde0f | 5247 | void ixgbe_up(struct ixgbe_adapter *adapter) |
9a799d71 AK |
5248 | { |
5249 | /* hardware has been reset, we need to reload some things */ | |
5250 | ixgbe_configure(adapter); | |
5251 | ||
c7ccde0f | 5252 | ixgbe_up_complete(adapter); |
9a799d71 AK |
5253 | } |
5254 | ||
5255 | void ixgbe_reset(struct ixgbe_adapter *adapter) | |
5256 | { | |
c44ade9e | 5257 | struct ixgbe_hw *hw = &adapter->hw; |
5d7daa35 | 5258 | struct net_device *netdev = adapter->netdev; |
8ca783ab DS |
5259 | int err; |
5260 | ||
b0483c8f MR |
5261 | if (ixgbe_removed(hw->hw_addr)) |
5262 | return; | |
7086400d AD |
5263 | /* lock SFP init bit to prevent race conditions with the watchdog */ |
5264 | while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
5265 | usleep_range(1000, 2000); | |
5266 | ||
5267 | /* clear all SFP and link config related flags while holding SFP_INIT */ | |
5268 | adapter->flags2 &= ~(IXGBE_FLAG2_SEARCH_FOR_SFP | | |
5269 | IXGBE_FLAG2_SFP_NEEDS_RESET); | |
5270 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
5271 | ||
8ca783ab | 5272 | err = hw->mac.ops.init_hw(hw); |
da4dd0f7 PWJ |
5273 | switch (err) { |
5274 | case 0: | |
5275 | case IXGBE_ERR_SFP_NOT_PRESENT: | |
7086400d | 5276 | case IXGBE_ERR_SFP_NOT_SUPPORTED: |
da4dd0f7 PWJ |
5277 | break; |
5278 | case IXGBE_ERR_MASTER_REQUESTS_PENDING: | |
849c4542 | 5279 | e_dev_err("master disable timed out\n"); |
da4dd0f7 | 5280 | break; |
794caeb2 PWJ |
5281 | case IXGBE_ERR_EEPROM_VERSION: |
5282 | /* We are running on a pre-production device, log a warning */ | |
849c4542 | 5283 | e_dev_warn("This device is a pre-production adapter/LOM. " |
52f33af8 | 5284 | "Please be aware there may be issues associated with " |
849c4542 ET |
5285 | "your hardware. If you are experiencing problems " |
5286 | "please contact your Intel or hardware " | |
5287 | "representative who provided you with this " | |
5288 | "hardware.\n"); | |
794caeb2 | 5289 | break; |
da4dd0f7 | 5290 | default: |
849c4542 | 5291 | e_dev_err("Hardware Error: %d\n", err); |
da4dd0f7 | 5292 | } |
9a799d71 | 5293 | |
7086400d | 5294 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); |
0f079d22 AD |
5295 | |
5296 | /* flush entries out of MAC table */ | |
5d7daa35 | 5297 | ixgbe_flush_sw_mac_table(adapter); |
0f079d22 AD |
5298 | __dev_uc_unsync(netdev, NULL); |
5299 | ||
5300 | /* do not flush user set addresses */ | |
c9f53e63 | 5301 | ixgbe_mac_set_default_filter(adapter); |
7fa7c9dc AD |
5302 | |
5303 | /* update SAN MAC vmdq pool selection */ | |
5304 | if (hw->mac.san_mac_rar_index) | |
5305 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
1a71ab24 | 5306 | |
8fecf67c | 5307 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 5308 | ixgbe_ptp_reset(adapter); |
961fac88 DS |
5309 | |
5310 | if (hw->phy.ops.set_phy_power) { | |
5311 | if (!netif_running(adapter->netdev) && !adapter->wol) | |
5312 | hw->phy.ops.set_phy_power(hw, false); | |
5313 | else | |
5314 | hw->phy.ops.set_phy_power(hw, true); | |
5315 | } | |
9a799d71 AK |
5316 | } |
5317 | ||
9a799d71 AK |
5318 | /** |
5319 | * ixgbe_clean_tx_ring - Free Tx Buffers | |
9a799d71 AK |
5320 | * @tx_ring: ring to be cleaned |
5321 | **/ | |
b6ec895e | 5322 | static void ixgbe_clean_tx_ring(struct ixgbe_ring *tx_ring) |
9a799d71 AK |
5323 | { |
5324 | struct ixgbe_tx_buffer *tx_buffer_info; | |
5325 | unsigned long size; | |
b6ec895e | 5326 | u16 i; |
9a799d71 | 5327 | |
84418e3b AD |
5328 | /* ring already cleared, nothing to do */ |
5329 | if (!tx_ring->tx_buffer_info) | |
5330 | return; | |
9a799d71 | 5331 | |
84418e3b | 5332 | /* Free all the Tx ring sk_buffs */ |
9a799d71 AK |
5333 | for (i = 0; i < tx_ring->count; i++) { |
5334 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
b6ec895e | 5335 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); |
9a799d71 AK |
5336 | } |
5337 | ||
dad8a3b3 JF |
5338 | netdev_tx_reset_queue(txring_txq(tx_ring)); |
5339 | ||
9a799d71 AK |
5340 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
5341 | memset(tx_ring->tx_buffer_info, 0, size); | |
5342 | ||
5343 | /* Zero out the descriptor ring */ | |
5344 | memset(tx_ring->desc, 0, tx_ring->size); | |
5345 | ||
5346 | tx_ring->next_to_use = 0; | |
5347 | tx_ring->next_to_clean = 0; | |
9a799d71 AK |
5348 | } |
5349 | ||
5350 | /** | |
021230d4 | 5351 | * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues |
9a799d71 AK |
5352 | * @adapter: board private structure |
5353 | **/ | |
021230d4 | 5354 | static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
5355 | { |
5356 | int i; | |
5357 | ||
021230d4 | 5358 | for (i = 0; i < adapter->num_rx_queues; i++) |
b6ec895e | 5359 | ixgbe_clean_rx_ring(adapter->rx_ring[i]); |
9a799d71 AK |
5360 | } |
5361 | ||
5362 | /** | |
021230d4 | 5363 | * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues |
9a799d71 AK |
5364 | * @adapter: board private structure |
5365 | **/ | |
021230d4 | 5366 | static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
5367 | { |
5368 | int i; | |
5369 | ||
021230d4 | 5370 | for (i = 0; i < adapter->num_tx_queues; i++) |
b6ec895e | 5371 | ixgbe_clean_tx_ring(adapter->tx_ring[i]); |
9a799d71 AK |
5372 | } |
5373 | ||
e4911d57 AD |
5374 | static void ixgbe_fdir_filter_exit(struct ixgbe_adapter *adapter) |
5375 | { | |
b67bfe0d | 5376 | struct hlist_node *node2; |
e4911d57 AD |
5377 | struct ixgbe_fdir_filter *filter; |
5378 | ||
5379 | spin_lock(&adapter->fdir_perfect_lock); | |
5380 | ||
b67bfe0d | 5381 | hlist_for_each_entry_safe(filter, node2, |
e4911d57 AD |
5382 | &adapter->fdir_filter_list, fdir_node) { |
5383 | hlist_del(&filter->fdir_node); | |
5384 | kfree(filter); | |
5385 | } | |
5386 | adapter->fdir_filter_count = 0; | |
5387 | ||
5388 | spin_unlock(&adapter->fdir_perfect_lock); | |
5389 | } | |
5390 | ||
9a799d71 AK |
5391 | void ixgbe_down(struct ixgbe_adapter *adapter) |
5392 | { | |
5393 | struct net_device *netdev = adapter->netdev; | |
7f821875 | 5394 | struct ixgbe_hw *hw = &adapter->hw; |
2a47fa45 JF |
5395 | struct net_device *upper; |
5396 | struct list_head *iter; | |
bf29ee6c | 5397 | int i; |
9a799d71 AK |
5398 | |
5399 | /* signal that we are down to the interrupt handler */ | |
c3049c8f MR |
5400 | if (test_and_set_bit(__IXGBE_DOWN, &adapter->state)) |
5401 | return; /* do nothing if already down */ | |
9a799d71 AK |
5402 | |
5403 | /* disable receives */ | |
1f9ac57c | 5404 | hw->mac.ops.disable_rx(hw); |
9a799d71 | 5405 | |
2d39d576 YZ |
5406 | /* disable all enabled rx queues */ |
5407 | for (i = 0; i < adapter->num_rx_queues; i++) | |
5408 | /* this call also flushes the previous write */ | |
5409 | ixgbe_disable_rx_queue(adapter, adapter->rx_ring[i]); | |
5410 | ||
032b4325 | 5411 | usleep_range(10000, 20000); |
9a799d71 | 5412 | |
7f821875 JB |
5413 | netif_tx_stop_all_queues(netdev); |
5414 | ||
7086400d | 5415 | /* call carrier off first to avoid false dev_watchdog timeouts */ |
c0dfb90e JF |
5416 | netif_carrier_off(netdev); |
5417 | netif_tx_disable(netdev); | |
5418 | ||
2a47fa45 JF |
5419 | /* disable any upper devices */ |
5420 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
5421 | if (netif_is_macvlan(upper)) { | |
5422 | struct macvlan_dev *vlan = netdev_priv(upper); | |
5423 | ||
5424 | if (vlan->fwd_priv) { | |
5425 | netif_tx_stop_all_queues(upper); | |
5426 | netif_carrier_off(upper); | |
5427 | netif_tx_disable(upper); | |
5428 | } | |
5429 | } | |
5430 | } | |
5431 | ||
c0dfb90e JF |
5432 | ixgbe_irq_disable(adapter); |
5433 | ||
5434 | ixgbe_napi_disable_all(adapter); | |
5435 | ||
d034acf1 AD |
5436 | adapter->flags2 &= ~(IXGBE_FLAG2_FDIR_REQUIRES_REINIT | |
5437 | IXGBE_FLAG2_RESET_REQUESTED); | |
7086400d AD |
5438 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; |
5439 | ||
5440 | del_timer_sync(&adapter->service_timer); | |
5441 | ||
34cecbbf | 5442 | if (adapter->num_vfs) { |
8e34d1aa AD |
5443 | /* Clear EITR Select mapping */ |
5444 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0); | |
34cecbbf AD |
5445 | |
5446 | /* Mark all the VFs as inactive */ | |
5447 | for (i = 0 ; i < adapter->num_vfs; i++) | |
3db1cd5c | 5448 | adapter->vfinfo[i].clear_to_send = false; |
34cecbbf | 5449 | |
34cecbbf AD |
5450 | /* ping all the active vfs to let them know we are going down */ |
5451 | ixgbe_ping_all_vfs(adapter); | |
5452 | ||
5453 | /* Disable all VFTE/VFRE TX/RX */ | |
5454 | ixgbe_disable_tx_rx(adapter); | |
b25ebfd2 PW |
5455 | } |
5456 | ||
7f821875 JB |
5457 | /* disable transmits in the hardware now that interrupts are off */ |
5458 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
bf29ee6c | 5459 | u8 reg_idx = adapter->tx_ring[i]->reg_idx; |
34cecbbf | 5460 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH); |
7f821875 | 5461 | } |
34cecbbf | 5462 | |
9a75a1ac | 5463 | /* Disable the Tx DMA engine on 82599 and later MAC */ |
bd508178 AD |
5464 | switch (hw->mac.type) { |
5465 | case ixgbe_mac_82599EB: | |
b93a2226 | 5466 | case ixgbe_mac_X540: |
9a75a1ac DS |
5467 | case ixgbe_mac_X550: |
5468 | case ixgbe_mac_X550EM_x: | |
88512539 | 5469 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, |
e8e9f696 JP |
5470 | (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & |
5471 | ~IXGBE_DMATXCTL_TE)); | |
bd508178 AD |
5472 | break; |
5473 | default: | |
5474 | break; | |
5475 | } | |
7f821875 | 5476 | |
6f4a0e45 PL |
5477 | if (!pci_channel_offline(adapter->pdev)) |
5478 | ixgbe_reset(adapter); | |
c6ecf39a | 5479 | |
ec74a471 ET |
5480 | /* power down the optics for 82599 SFP+ fiber */ |
5481 | if (hw->mac.ops.disable_tx_laser) | |
c6ecf39a DS |
5482 | hw->mac.ops.disable_tx_laser(hw); |
5483 | ||
9a799d71 AK |
5484 | ixgbe_clean_all_tx_rings(adapter); |
5485 | ixgbe_clean_all_rx_rings(adapter); | |
9a799d71 AK |
5486 | } |
5487 | ||
9a799d71 AK |
5488 | /** |
5489 | * ixgbe_tx_timeout - Respond to a Tx Hang | |
5490 | * @netdev: network interface device structure | |
5491 | **/ | |
5492 | static void ixgbe_tx_timeout(struct net_device *netdev) | |
5493 | { | |
5494 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5495 | ||
5496 | /* Do the reset outside of interrupt context */ | |
c83c6cbd | 5497 | ixgbe_tx_timeout_reset(adapter); |
9a799d71 AK |
5498 | } |
5499 | ||
9a799d71 AK |
5500 | /** |
5501 | * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter) | |
5502 | * @adapter: board private structure to initialize | |
5503 | * | |
5504 | * ixgbe_sw_init initializes the Adapter private data structure. | |
5505 | * Fields are initialized based on PCI device information and | |
5506 | * OS network device settings (MTU size). | |
5507 | **/ | |
9f9a12f8 | 5508 | static int ixgbe_sw_init(struct ixgbe_adapter *adapter) |
9a799d71 AK |
5509 | { |
5510 | struct ixgbe_hw *hw = &adapter->hw; | |
5511 | struct pci_dev *pdev = adapter->pdev; | |
d3cb9869 | 5512 | unsigned int rss, fdir; |
cb6d0f5e | 5513 | u32 fwsm; |
7a6b6f51 | 5514 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
5515 | int j; |
5516 | struct tc_configuration *tc; | |
5517 | #endif | |
021230d4 | 5518 | |
c44ade9e JB |
5519 | /* PCI config space info */ |
5520 | ||
5521 | hw->vendor_id = pdev->vendor; | |
5522 | hw->device_id = pdev->device; | |
5523 | hw->revision_id = pdev->revision; | |
5524 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
5525 | hw->subsystem_device_id = pdev->subsystem_device; | |
5526 | ||
8fc3bb6d | 5527 | /* Set common capability flags and settings */ |
0f9b232b | 5528 | rss = min_t(int, ixgbe_max_rss_indices(adapter), num_online_cpus()); |
c087663e | 5529 | adapter->ring_feature[RING_F_RSS].limit = rss; |
8fc3bb6d | 5530 | adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; |
8fc3bb6d ET |
5531 | adapter->max_q_vectors = MAX_Q_VECTORS_82599; |
5532 | adapter->atr_sample_rate = 20; | |
d3cb9869 AD |
5533 | fdir = min_t(int, IXGBE_MAX_FDIR_INDICES, num_online_cpus()); |
5534 | adapter->ring_feature[RING_F_FDIR].limit = fdir; | |
8fc3bb6d ET |
5535 | adapter->fdir_pballoc = IXGBE_FDIR_PBALLOC_64K; |
5536 | #ifdef CONFIG_IXGBE_DCA | |
5537 | adapter->flags |= IXGBE_FLAG_DCA_CAPABLE; | |
5538 | #endif | |
5539 | #ifdef IXGBE_FCOE | |
5540 | adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE; | |
5541 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
5542 | #ifdef CONFIG_IXGBE_DCB | |
5543 | /* Default traffic class to use for FCoE */ | |
5544 | adapter->fcoe.up = IXGBE_FCOE_DEFTC; | |
5545 | #endif /* CONFIG_IXGBE_DCB */ | |
5546 | #endif /* IXGBE_FCOE */ | |
5547 | ||
5d7daa35 JK |
5548 | adapter->mac_table = kzalloc(sizeof(struct ixgbe_mac_addr) * |
5549 | hw->mac.num_rar_entries, | |
5550 | GFP_ATOMIC); | |
530fd82a AD |
5551 | if (!adapter->mac_table) |
5552 | return -ENOMEM; | |
5d7daa35 | 5553 | |
8fc3bb6d | 5554 | /* Set MAC specific capability flags and exceptions */ |
bd508178 AD |
5555 | switch (hw->mac.type) { |
5556 | case ixgbe_mac_82598EB: | |
8fc3bb6d | 5557 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_CAPABLE; |
8fc3bb6d | 5558 | |
bf069c97 DS |
5559 | if (hw->device_id == IXGBE_DEV_ID_82598AT) |
5560 | adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; | |
8fc3bb6d | 5561 | |
49c7ffbe | 5562 | adapter->max_q_vectors = MAX_Q_VECTORS_82598; |
8fc3bb6d ET |
5563 | adapter->ring_feature[RING_F_FDIR].limit = 0; |
5564 | adapter->atr_sample_rate = 0; | |
5565 | adapter->fdir_pballoc = 0; | |
5566 | #ifdef IXGBE_FCOE | |
5567 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
5568 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
5569 | #ifdef CONFIG_IXGBE_DCB | |
5570 | adapter->fcoe.up = 0; | |
5571 | #endif /* IXGBE_DCB */ | |
5572 | #endif /* IXGBE_FCOE */ | |
5573 | break; | |
5574 | case ixgbe_mac_82599EB: | |
5575 | if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) | |
5576 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
bd508178 | 5577 | break; |
b93a2226 | 5578 | case ixgbe_mac_X540: |
9a900eca | 5579 | fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw)); |
cb6d0f5e JK |
5580 | if (fwsm & IXGBE_FWSM_TS_ENABLED) |
5581 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
bd508178 | 5582 | break; |
9a75a1ac DS |
5583 | case ixgbe_mac_X550EM_x: |
5584 | case ixgbe_mac_X550: | |
5585 | #ifdef CONFIG_IXGBE_DCA | |
5586 | adapter->flags &= ~IXGBE_FLAG_DCA_CAPABLE; | |
67359c3c MR |
5587 | #endif |
5588 | #ifdef CONFIG_IXGBE_VXLAN | |
5589 | adapter->flags |= IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE; | |
9a75a1ac DS |
5590 | #endif |
5591 | break; | |
bd508178 AD |
5592 | default: |
5593 | break; | |
f8212f97 | 5594 | } |
2f90b865 | 5595 | |
7c8ae65a AD |
5596 | #ifdef IXGBE_FCOE |
5597 | /* FCoE support exists, always init the FCoE lock */ | |
5598 | spin_lock_init(&adapter->fcoe.lock); | |
5599 | ||
5600 | #endif | |
1fc5f038 AD |
5601 | /* n-tuple support exists, always init our spinlock */ |
5602 | spin_lock_init(&adapter->fdir_perfect_lock); | |
5603 | ||
7a6b6f51 | 5604 | #ifdef CONFIG_IXGBE_DCB |
4de2a022 JF |
5605 | switch (hw->mac.type) { |
5606 | case ixgbe_mac_X540: | |
9a75a1ac DS |
5607 | case ixgbe_mac_X550: |
5608 | case ixgbe_mac_X550EM_x: | |
4de2a022 JF |
5609 | adapter->dcb_cfg.num_tcs.pg_tcs = X540_TRAFFIC_CLASS; |
5610 | adapter->dcb_cfg.num_tcs.pfc_tcs = X540_TRAFFIC_CLASS; | |
5611 | break; | |
5612 | default: | |
5613 | adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; | |
5614 | adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; | |
5615 | break; | |
5616 | } | |
5617 | ||
2f90b865 AD |
5618 | /* Configure DCB traffic classes */ |
5619 | for (j = 0; j < MAX_TRAFFIC_CLASS; j++) { | |
5620 | tc = &adapter->dcb_cfg.tc_config[j]; | |
5621 | tc->path[DCB_TX_CONFIG].bwg_id = 0; | |
5622 | tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1); | |
5623 | tc->path[DCB_RX_CONFIG].bwg_id = 0; | |
5624 | tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1); | |
5625 | tc->dcb_pfc = pfc_disabled; | |
5626 | } | |
4de2a022 JF |
5627 | |
5628 | /* Initialize default user to priority mapping, UPx->TC0 */ | |
5629 | tc = &adapter->dcb_cfg.tc_config[0]; | |
5630 | tc->path[DCB_TX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5631 | tc->path[DCB_RX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5632 | ||
2f90b865 AD |
5633 | adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100; |
5634 | adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100; | |
264857b8 | 5635 | adapter->dcb_cfg.pfc_mode_enable = false; |
2f90b865 | 5636 | adapter->dcb_set_bitmap = 0x00; |
3032309b | 5637 | adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE; |
f525c6d2 JF |
5638 | memcpy(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, |
5639 | sizeof(adapter->temp_dcb_cfg)); | |
2f90b865 AD |
5640 | |
5641 | #endif | |
9a799d71 AK |
5642 | |
5643 | /* default flow control settings */ | |
cd7664f6 | 5644 | hw->fc.requested_mode = ixgbe_fc_full; |
71fd570b | 5645 | hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ |
9da712d2 | 5646 | ixgbe_pbthresh_setup(adapter); |
2b9ade93 JB |
5647 | hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; |
5648 | hw->fc.send_xon = true; | |
73d80953 | 5649 | hw->fc.disable_fc_autoneg = ixgbe_device_supports_autoneg_fc(hw); |
9a799d71 | 5650 | |
99d74487 | 5651 | #ifdef CONFIG_PCI_IOV |
170e8543 JK |
5652 | if (max_vfs > 0) |
5653 | e_dev_warn("Enabling SR-IOV VFs using the max_vfs module parameter is deprecated - please use the pci sysfs interface instead.\n"); | |
5654 | ||
99d74487 | 5655 | /* assign number of SR-IOV VFs */ |
170e8543 | 5656 | if (hw->mac.type != ixgbe_mac_82598EB) { |
dcc23e3a | 5657 | if (max_vfs > IXGBE_MAX_VFS_DRV_LIMIT) { |
170e8543 JK |
5658 | adapter->num_vfs = 0; |
5659 | e_dev_warn("max_vfs parameter out of range. Not assigning any SR-IOV VFs\n"); | |
5660 | } else { | |
5661 | adapter->num_vfs = max_vfs; | |
5662 | } | |
5663 | } | |
5664 | #endif /* CONFIG_PCI_IOV */ | |
99d74487 | 5665 | |
30efa5a3 | 5666 | /* enable itr by default in dynamic mode */ |
f7554a2b | 5667 | adapter->rx_itr_setting = 1; |
f7554a2b | 5668 | adapter->tx_itr_setting = 1; |
30efa5a3 | 5669 | |
30efa5a3 JB |
5670 | /* set default ring sizes */ |
5671 | adapter->tx_ring_count = IXGBE_DEFAULT_TXD; | |
5672 | adapter->rx_ring_count = IXGBE_DEFAULT_RXD; | |
5673 | ||
bd198058 | 5674 | /* set default work limits */ |
59224555 | 5675 | adapter->tx_work_limit = IXGBE_DEFAULT_TX_WORK; |
bd198058 | 5676 | |
9a799d71 | 5677 | /* initialize eeprom parameters */ |
c44ade9e | 5678 | if (ixgbe_init_eeprom_params_generic(hw)) { |
849c4542 | 5679 | e_dev_err("EEPROM initialization failed\n"); |
9a799d71 AK |
5680 | return -EIO; |
5681 | } | |
5682 | ||
2a47fa45 JF |
5683 | /* PF holds first pool slot */ |
5684 | set_bit(0, &adapter->fwd_bitmask); | |
9a799d71 AK |
5685 | set_bit(__IXGBE_DOWN, &adapter->state); |
5686 | ||
5687 | return 0; | |
5688 | } | |
5689 | ||
5690 | /** | |
5691 | * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors) | |
3a581073 | 5692 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5693 | * |
5694 | * Return 0 on success, negative on failure | |
5695 | **/ | |
b6ec895e | 5696 | int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5697 | { |
b6ec895e | 5698 | struct device *dev = tx_ring->dev; |
de88eeeb | 5699 | int orig_node = dev_to_node(dev); |
ca8dfe25 | 5700 | int ring_node = -1; |
9a799d71 AK |
5701 | int size; |
5702 | ||
3a581073 | 5703 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
de88eeeb AD |
5704 | |
5705 | if (tx_ring->q_vector) | |
ca8dfe25 | 5706 | ring_node = tx_ring->q_vector->numa_node; |
de88eeeb | 5707 | |
ca8dfe25 | 5708 | tx_ring->tx_buffer_info = vzalloc_node(size, ring_node); |
1a6c14a2 | 5709 | if (!tx_ring->tx_buffer_info) |
89bf67f1 | 5710 | tx_ring->tx_buffer_info = vzalloc(size); |
e01c31a5 JB |
5711 | if (!tx_ring->tx_buffer_info) |
5712 | goto err; | |
9a799d71 | 5713 | |
827da44c JS |
5714 | u64_stats_init(&tx_ring->syncp); |
5715 | ||
9a799d71 | 5716 | /* round up to nearest 4K */ |
12207e49 | 5717 | tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); |
3a581073 | 5718 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
9a799d71 | 5719 | |
ca8dfe25 | 5720 | set_dev_node(dev, ring_node); |
de88eeeb AD |
5721 | tx_ring->desc = dma_alloc_coherent(dev, |
5722 | tx_ring->size, | |
5723 | &tx_ring->dma, | |
5724 | GFP_KERNEL); | |
5725 | set_dev_node(dev, orig_node); | |
5726 | if (!tx_ring->desc) | |
5727 | tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, | |
5728 | &tx_ring->dma, GFP_KERNEL); | |
e01c31a5 JB |
5729 | if (!tx_ring->desc) |
5730 | goto err; | |
9a799d71 | 5731 | |
3a581073 JB |
5732 | tx_ring->next_to_use = 0; |
5733 | tx_ring->next_to_clean = 0; | |
9a799d71 | 5734 | return 0; |
e01c31a5 JB |
5735 | |
5736 | err: | |
5737 | vfree(tx_ring->tx_buffer_info); | |
5738 | tx_ring->tx_buffer_info = NULL; | |
b6ec895e | 5739 | dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); |
e01c31a5 | 5740 | return -ENOMEM; |
9a799d71 AK |
5741 | } |
5742 | ||
69888674 AD |
5743 | /** |
5744 | * ixgbe_setup_all_tx_resources - allocate all queues Tx resources | |
5745 | * @adapter: board private structure | |
5746 | * | |
5747 | * If this function returns with an error, then it's possible one or | |
5748 | * more of the rings is populated (while the rest are not). It is the | |
5749 | * callers duty to clean those orphaned rings. | |
5750 | * | |
5751 | * Return 0 on success, negative on failure | |
5752 | **/ | |
5753 | static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter) | |
5754 | { | |
5755 | int i, err = 0; | |
5756 | ||
5757 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
b6ec895e | 5758 | err = ixgbe_setup_tx_resources(adapter->tx_ring[i]); |
69888674 AD |
5759 | if (!err) |
5760 | continue; | |
de3d5b94 | 5761 | |
396e799c | 5762 | e_err(probe, "Allocation for Tx Queue %u failed\n", i); |
de3d5b94 | 5763 | goto err_setup_tx; |
69888674 AD |
5764 | } |
5765 | ||
de3d5b94 AD |
5766 | return 0; |
5767 | err_setup_tx: | |
5768 | /* rewind the index freeing the rings as we go */ | |
5769 | while (i--) | |
5770 | ixgbe_free_tx_resources(adapter->tx_ring[i]); | |
69888674 AD |
5771 | return err; |
5772 | } | |
5773 | ||
9a799d71 AK |
5774 | /** |
5775 | * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors) | |
3a581073 | 5776 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5777 | * |
5778 | * Returns 0 on success, negative on failure | |
5779 | **/ | |
b6ec895e | 5780 | int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5781 | { |
b6ec895e | 5782 | struct device *dev = rx_ring->dev; |
de88eeeb | 5783 | int orig_node = dev_to_node(dev); |
ca8dfe25 | 5784 | int ring_node = -1; |
021230d4 | 5785 | int size; |
9a799d71 | 5786 | |
3a581073 | 5787 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
de88eeeb AD |
5788 | |
5789 | if (rx_ring->q_vector) | |
ca8dfe25 | 5790 | ring_node = rx_ring->q_vector->numa_node; |
de88eeeb | 5791 | |
ca8dfe25 | 5792 | rx_ring->rx_buffer_info = vzalloc_node(size, ring_node); |
1a6c14a2 | 5793 | if (!rx_ring->rx_buffer_info) |
89bf67f1 | 5794 | rx_ring->rx_buffer_info = vzalloc(size); |
b6ec895e AD |
5795 | if (!rx_ring->rx_buffer_info) |
5796 | goto err; | |
9a799d71 | 5797 | |
827da44c JS |
5798 | u64_stats_init(&rx_ring->syncp); |
5799 | ||
9a799d71 | 5800 | /* Round up to nearest 4K */ |
3a581073 JB |
5801 | rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc); |
5802 | rx_ring->size = ALIGN(rx_ring->size, 4096); | |
9a799d71 | 5803 | |
ca8dfe25 | 5804 | set_dev_node(dev, ring_node); |
de88eeeb AD |
5805 | rx_ring->desc = dma_alloc_coherent(dev, |
5806 | rx_ring->size, | |
5807 | &rx_ring->dma, | |
5808 | GFP_KERNEL); | |
5809 | set_dev_node(dev, orig_node); | |
5810 | if (!rx_ring->desc) | |
5811 | rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, | |
5812 | &rx_ring->dma, GFP_KERNEL); | |
b6ec895e AD |
5813 | if (!rx_ring->desc) |
5814 | goto err; | |
9a799d71 | 5815 | |
3a581073 JB |
5816 | rx_ring->next_to_clean = 0; |
5817 | rx_ring->next_to_use = 0; | |
9a799d71 AK |
5818 | |
5819 | return 0; | |
b6ec895e AD |
5820 | err: |
5821 | vfree(rx_ring->rx_buffer_info); | |
5822 | rx_ring->rx_buffer_info = NULL; | |
5823 | dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); | |
177db6ff | 5824 | return -ENOMEM; |
9a799d71 AK |
5825 | } |
5826 | ||
69888674 AD |
5827 | /** |
5828 | * ixgbe_setup_all_rx_resources - allocate all queues Rx resources | |
5829 | * @adapter: board private structure | |
5830 | * | |
5831 | * If this function returns with an error, then it's possible one or | |
5832 | * more of the rings is populated (while the rest are not). It is the | |
5833 | * callers duty to clean those orphaned rings. | |
5834 | * | |
5835 | * Return 0 on success, negative on failure | |
5836 | **/ | |
69888674 AD |
5837 | static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter) |
5838 | { | |
5839 | int i, err = 0; | |
5840 | ||
5841 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
b6ec895e | 5842 | err = ixgbe_setup_rx_resources(adapter->rx_ring[i]); |
69888674 AD |
5843 | if (!err) |
5844 | continue; | |
de3d5b94 | 5845 | |
396e799c | 5846 | e_err(probe, "Allocation for Rx Queue %u failed\n", i); |
de3d5b94 | 5847 | goto err_setup_rx; |
69888674 AD |
5848 | } |
5849 | ||
7c8ae65a AD |
5850 | #ifdef IXGBE_FCOE |
5851 | err = ixgbe_setup_fcoe_ddp_resources(adapter); | |
5852 | if (!err) | |
5853 | #endif | |
5854 | return 0; | |
de3d5b94 AD |
5855 | err_setup_rx: |
5856 | /* rewind the index freeing the rings as we go */ | |
5857 | while (i--) | |
5858 | ixgbe_free_rx_resources(adapter->rx_ring[i]); | |
69888674 AD |
5859 | return err; |
5860 | } | |
5861 | ||
9a799d71 AK |
5862 | /** |
5863 | * ixgbe_free_tx_resources - Free Tx Resources per Queue | |
9a799d71 AK |
5864 | * @tx_ring: Tx descriptor ring for a specific queue |
5865 | * | |
5866 | * Free all transmit software resources | |
5867 | **/ | |
b6ec895e | 5868 | void ixgbe_free_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5869 | { |
b6ec895e | 5870 | ixgbe_clean_tx_ring(tx_ring); |
9a799d71 AK |
5871 | |
5872 | vfree(tx_ring->tx_buffer_info); | |
5873 | tx_ring->tx_buffer_info = NULL; | |
5874 | ||
b6ec895e AD |
5875 | /* if not set, then don't free */ |
5876 | if (!tx_ring->desc) | |
5877 | return; | |
5878 | ||
5879 | dma_free_coherent(tx_ring->dev, tx_ring->size, | |
5880 | tx_ring->desc, tx_ring->dma); | |
9a799d71 AK |
5881 | |
5882 | tx_ring->desc = NULL; | |
5883 | } | |
5884 | ||
5885 | /** | |
5886 | * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues | |
5887 | * @adapter: board private structure | |
5888 | * | |
5889 | * Free all transmit software resources | |
5890 | **/ | |
5891 | static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) | |
5892 | { | |
5893 | int i; | |
5894 | ||
5895 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4a0b9ca0 | 5896 | if (adapter->tx_ring[i]->desc) |
b6ec895e | 5897 | ixgbe_free_tx_resources(adapter->tx_ring[i]); |
9a799d71 AK |
5898 | } |
5899 | ||
5900 | /** | |
b4617240 | 5901 | * ixgbe_free_rx_resources - Free Rx Resources |
9a799d71 AK |
5902 | * @rx_ring: ring to clean the resources from |
5903 | * | |
5904 | * Free all receive software resources | |
5905 | **/ | |
b6ec895e | 5906 | void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5907 | { |
b6ec895e | 5908 | ixgbe_clean_rx_ring(rx_ring); |
9a799d71 AK |
5909 | |
5910 | vfree(rx_ring->rx_buffer_info); | |
5911 | rx_ring->rx_buffer_info = NULL; | |
5912 | ||
b6ec895e AD |
5913 | /* if not set, then don't free */ |
5914 | if (!rx_ring->desc) | |
5915 | return; | |
5916 | ||
5917 | dma_free_coherent(rx_ring->dev, rx_ring->size, | |
5918 | rx_ring->desc, rx_ring->dma); | |
9a799d71 AK |
5919 | |
5920 | rx_ring->desc = NULL; | |
5921 | } | |
5922 | ||
5923 | /** | |
5924 | * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues | |
5925 | * @adapter: board private structure | |
5926 | * | |
5927 | * Free all receive software resources | |
5928 | **/ | |
5929 | static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) | |
5930 | { | |
5931 | int i; | |
5932 | ||
7c8ae65a AD |
5933 | #ifdef IXGBE_FCOE |
5934 | ixgbe_free_fcoe_ddp_resources(adapter); | |
5935 | ||
5936 | #endif | |
9a799d71 | 5937 | for (i = 0; i < adapter->num_rx_queues; i++) |
4a0b9ca0 | 5938 | if (adapter->rx_ring[i]->desc) |
b6ec895e | 5939 | ixgbe_free_rx_resources(adapter->rx_ring[i]); |
9a799d71 AK |
5940 | } |
5941 | ||
9a799d71 AK |
5942 | /** |
5943 | * ixgbe_change_mtu - Change the Maximum Transfer Unit | |
5944 | * @netdev: network interface device structure | |
5945 | * @new_mtu: new value for maximum frame size | |
5946 | * | |
5947 | * Returns 0 on success, negative on failure | |
5948 | **/ | |
5949 | static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) | |
5950 | { | |
5951 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5952 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
5953 | ||
42c783c5 | 5954 | /* MTU < 68 is an error and causes problems on some kernels */ |
655309e9 AD |
5955 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) |
5956 | return -EINVAL; | |
5957 | ||
5958 | /* | |
872844dd AD |
5959 | * For 82599EB we cannot allow legacy VFs to enable their receive |
5960 | * paths when MTU greater than 1500 is configured. So display a | |
5961 | * warning that legacy VFs will be disabled. | |
655309e9 AD |
5962 | */ |
5963 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && | |
5964 | (adapter->hw.mac.type == ixgbe_mac_82599EB) && | |
c560451c | 5965 | (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) |
872844dd | 5966 | e_warn(probe, "Setting MTU > 1500 will disable legacy VFs\n"); |
9a799d71 | 5967 | |
396e799c | 5968 | e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); |
655309e9 | 5969 | |
021230d4 | 5970 | /* must set new MTU before calling down or up */ |
9a799d71 AK |
5971 | netdev->mtu = new_mtu; |
5972 | ||
d4f80882 AV |
5973 | if (netif_running(netdev)) |
5974 | ixgbe_reinit_locked(adapter); | |
9a799d71 AK |
5975 | |
5976 | return 0; | |
5977 | } | |
5978 | ||
5979 | /** | |
5980 | * ixgbe_open - Called when a network interface is made active | |
5981 | * @netdev: network interface device structure | |
5982 | * | |
5983 | * Returns 0 on success, negative value on failure | |
5984 | * | |
5985 | * The open entry point is called when a network interface is made | |
5986 | * active by the system (IFF_UP). At this point all resources needed | |
5987 | * for transmit and receive operations are allocated, the interrupt | |
5988 | * handler is registered with the OS, the watchdog timer is started, | |
5989 | * and the stack is notified that the interface is ready. | |
5990 | **/ | |
5991 | static int ixgbe_open(struct net_device *netdev) | |
5992 | { | |
5993 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
961fac88 | 5994 | struct ixgbe_hw *hw = &adapter->hw; |
2a47fa45 | 5995 | int err, queues; |
4bebfaa5 AK |
5996 | |
5997 | /* disallow open during test */ | |
5998 | if (test_bit(__IXGBE_TESTING, &adapter->state)) | |
5999 | return -EBUSY; | |
9a799d71 | 6000 | |
54386467 JB |
6001 | netif_carrier_off(netdev); |
6002 | ||
9a799d71 AK |
6003 | /* allocate transmit descriptors */ |
6004 | err = ixgbe_setup_all_tx_resources(adapter); | |
6005 | if (err) | |
6006 | goto err_setup_tx; | |
6007 | ||
9a799d71 AK |
6008 | /* allocate receive descriptors */ |
6009 | err = ixgbe_setup_all_rx_resources(adapter); | |
6010 | if (err) | |
6011 | goto err_setup_rx; | |
6012 | ||
6013 | ixgbe_configure(adapter); | |
6014 | ||
021230d4 | 6015 | err = ixgbe_request_irq(adapter); |
9a799d71 AK |
6016 | if (err) |
6017 | goto err_req_irq; | |
6018 | ||
ac802f5d | 6019 | /* Notify the stack of the actual queue counts. */ |
2a47fa45 JF |
6020 | if (adapter->num_rx_pools > 1) |
6021 | queues = adapter->num_rx_queues_per_pool; | |
6022 | else | |
6023 | queues = adapter->num_tx_queues; | |
6024 | ||
6025 | err = netif_set_real_num_tx_queues(netdev, queues); | |
ac802f5d AD |
6026 | if (err) |
6027 | goto err_set_queues; | |
6028 | ||
2a47fa45 JF |
6029 | if (adapter->num_rx_pools > 1 && |
6030 | adapter->num_rx_queues > IXGBE_MAX_L2A_QUEUES) | |
6031 | queues = IXGBE_MAX_L2A_QUEUES; | |
6032 | else | |
6033 | queues = adapter->num_rx_queues; | |
6034 | err = netif_set_real_num_rx_queues(netdev, queues); | |
ac802f5d AD |
6035 | if (err) |
6036 | goto err_set_queues; | |
6037 | ||
1a71ab24 | 6038 | ixgbe_ptp_init(adapter); |
1a71ab24 | 6039 | |
c7ccde0f | 6040 | ixgbe_up_complete(adapter); |
9a799d71 | 6041 | |
67359c3c MR |
6042 | ixgbe_clear_vxlan_port(adapter); |
6043 | #ifdef CONFIG_IXGBE_VXLAN | |
3f207800 | 6044 | vxlan_get_rx_port(netdev); |
3f207800 | 6045 | #endif |
67359c3c | 6046 | |
9a799d71 AK |
6047 | return 0; |
6048 | ||
ac802f5d AD |
6049 | err_set_queues: |
6050 | ixgbe_free_irq(adapter); | |
9a799d71 | 6051 | err_req_irq: |
a20a1199 | 6052 | ixgbe_free_all_rx_resources(adapter); |
961fac88 DS |
6053 | if (hw->phy.ops.set_phy_power && !adapter->wol) |
6054 | hw->phy.ops.set_phy_power(&adapter->hw, false); | |
de3d5b94 | 6055 | err_setup_rx: |
a20a1199 | 6056 | ixgbe_free_all_tx_resources(adapter); |
de3d5b94 | 6057 | err_setup_tx: |
9a799d71 AK |
6058 | ixgbe_reset(adapter); |
6059 | ||
6060 | return err; | |
6061 | } | |
6062 | ||
a0cccce2 JK |
6063 | static void ixgbe_close_suspend(struct ixgbe_adapter *adapter) |
6064 | { | |
6065 | ixgbe_ptp_suspend(adapter); | |
6066 | ||
6ac74394 DS |
6067 | if (adapter->hw.phy.ops.enter_lplu) { |
6068 | adapter->hw.phy.reset_disable = true; | |
6069 | ixgbe_down(adapter); | |
6070 | adapter->hw.phy.ops.enter_lplu(&adapter->hw); | |
6071 | adapter->hw.phy.reset_disable = false; | |
6072 | } else { | |
6073 | ixgbe_down(adapter); | |
6074 | } | |
6075 | ||
a0cccce2 JK |
6076 | ixgbe_free_irq(adapter); |
6077 | ||
6078 | ixgbe_free_all_tx_resources(adapter); | |
6079 | ixgbe_free_all_rx_resources(adapter); | |
6080 | } | |
6081 | ||
9a799d71 AK |
6082 | /** |
6083 | * ixgbe_close - Disables a network interface | |
6084 | * @netdev: network interface device structure | |
6085 | * | |
6086 | * Returns 0, this is not allowed to fail | |
6087 | * | |
6088 | * The close entry point is called when an interface is de-activated | |
6089 | * by the OS. The hardware is still under the drivers control, but | |
6090 | * needs to be disabled. A global MAC reset is issued to stop the | |
6091 | * hardware, and all transmit and receive resources are freed. | |
6092 | **/ | |
6093 | static int ixgbe_close(struct net_device *netdev) | |
6094 | { | |
6095 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
9a799d71 | 6096 | |
1a71ab24 | 6097 | ixgbe_ptp_stop(adapter); |
1a71ab24 | 6098 | |
a0cccce2 | 6099 | ixgbe_close_suspend(adapter); |
9a799d71 | 6100 | |
e4911d57 AD |
6101 | ixgbe_fdir_filter_exit(adapter); |
6102 | ||
5eba3699 | 6103 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
6104 | |
6105 | return 0; | |
6106 | } | |
6107 | ||
b3c8b4ba AD |
6108 | #ifdef CONFIG_PM |
6109 | static int ixgbe_resume(struct pci_dev *pdev) | |
6110 | { | |
c60fbb00 AD |
6111 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
6112 | struct net_device *netdev = adapter->netdev; | |
b3c8b4ba AD |
6113 | u32 err; |
6114 | ||
0391bbe3 | 6115 | adapter->hw.hw_addr = adapter->io_addr; |
b3c8b4ba AD |
6116 | pci_set_power_state(pdev, PCI_D0); |
6117 | pci_restore_state(pdev); | |
656ab817 DS |
6118 | /* |
6119 | * pci_restore_state clears dev->state_saved so call | |
6120 | * pci_save_state to restore it. | |
6121 | */ | |
6122 | pci_save_state(pdev); | |
9ce77666 | 6123 | |
6124 | err = pci_enable_device_mem(pdev); | |
b3c8b4ba | 6125 | if (err) { |
849c4542 | 6126 | e_dev_err("Cannot enable PCI device from suspend\n"); |
b3c8b4ba AD |
6127 | return err; |
6128 | } | |
4e857c58 | 6129 | smp_mb__before_atomic(); |
41c62843 | 6130 | clear_bit(__IXGBE_DISABLED, &adapter->state); |
b3c8b4ba AD |
6131 | pci_set_master(pdev); |
6132 | ||
dd4d8ca6 | 6133 | pci_wake_from_d3(pdev, false); |
b3c8b4ba | 6134 | |
b3c8b4ba AD |
6135 | ixgbe_reset(adapter); |
6136 | ||
495dce12 WJP |
6137 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
6138 | ||
ac802f5d AD |
6139 | rtnl_lock(); |
6140 | err = ixgbe_init_interrupt_scheme(adapter); | |
6141 | if (!err && netif_running(netdev)) | |
c60fbb00 | 6142 | err = ixgbe_open(netdev); |
ac802f5d AD |
6143 | |
6144 | rtnl_unlock(); | |
6145 | ||
6146 | if (err) | |
6147 | return err; | |
b3c8b4ba AD |
6148 | |
6149 | netif_device_attach(netdev); | |
6150 | ||
6151 | return 0; | |
6152 | } | |
b3c8b4ba | 6153 | #endif /* CONFIG_PM */ |
9d8d05ae RW |
6154 | |
6155 | static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) | |
b3c8b4ba | 6156 | { |
c60fbb00 AD |
6157 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
6158 | struct net_device *netdev = adapter->netdev; | |
e8e26350 PW |
6159 | struct ixgbe_hw *hw = &adapter->hw; |
6160 | u32 ctrl, fctrl; | |
6161 | u32 wufc = adapter->wol; | |
b3c8b4ba AD |
6162 | #ifdef CONFIG_PM |
6163 | int retval = 0; | |
6164 | #endif | |
6165 | ||
6166 | netif_device_detach(netdev); | |
6167 | ||
499ab5cc | 6168 | rtnl_lock(); |
a0cccce2 JK |
6169 | if (netif_running(netdev)) |
6170 | ixgbe_close_suspend(adapter); | |
499ab5cc | 6171 | rtnl_unlock(); |
b3c8b4ba | 6172 | |
5f5ae6fc AD |
6173 | ixgbe_clear_interrupt_scheme(adapter); |
6174 | ||
b3c8b4ba AD |
6175 | #ifdef CONFIG_PM |
6176 | retval = pci_save_state(pdev); | |
6177 | if (retval) | |
6178 | return retval; | |
4df10466 | 6179 | |
b3c8b4ba | 6180 | #endif |
f4f1040a JK |
6181 | if (hw->mac.ops.stop_link_on_d3) |
6182 | hw->mac.ops.stop_link_on_d3(hw); | |
6183 | ||
e8e26350 PW |
6184 | if (wufc) { |
6185 | ixgbe_set_rx_mode(netdev); | |
b3c8b4ba | 6186 | |
ec74a471 ET |
6187 | /* enable the optics for 82599 SFP+ fiber as we can WoL */ |
6188 | if (hw->mac.ops.enable_tx_laser) | |
c509e754 DS |
6189 | hw->mac.ops.enable_tx_laser(hw); |
6190 | ||
e8e26350 PW |
6191 | /* turn on all-multi mode if wake on multicast is enabled */ |
6192 | if (wufc & IXGBE_WUFC_MC) { | |
6193 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
6194 | fctrl |= IXGBE_FCTRL_MPE; | |
6195 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); | |
6196 | } | |
6197 | ||
6198 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
6199 | ctrl |= IXGBE_CTRL_GIO_DIS; | |
6200 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); | |
6201 | ||
6202 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); | |
6203 | } else { | |
6204 | IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); | |
6205 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); | |
6206 | } | |
6207 | ||
bd508178 AD |
6208 | switch (hw->mac.type) { |
6209 | case ixgbe_mac_82598EB: | |
dd4d8ca6 | 6210 | pci_wake_from_d3(pdev, false); |
bd508178 AD |
6211 | break; |
6212 | case ixgbe_mac_82599EB: | |
b93a2226 | 6213 | case ixgbe_mac_X540: |
9a75a1ac DS |
6214 | case ixgbe_mac_X550: |
6215 | case ixgbe_mac_X550EM_x: | |
bd508178 AD |
6216 | pci_wake_from_d3(pdev, !!wufc); |
6217 | break; | |
6218 | default: | |
6219 | break; | |
6220 | } | |
b3c8b4ba | 6221 | |
9d8d05ae | 6222 | *enable_wake = !!wufc; |
961fac88 DS |
6223 | if (hw->phy.ops.set_phy_power && !*enable_wake) |
6224 | hw->phy.ops.set_phy_power(hw, false); | |
9d8d05ae | 6225 | |
b3c8b4ba AD |
6226 | ixgbe_release_hw_control(adapter); |
6227 | ||
41c62843 MR |
6228 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) |
6229 | pci_disable_device(pdev); | |
b3c8b4ba | 6230 | |
9d8d05ae RW |
6231 | return 0; |
6232 | } | |
6233 | ||
6234 | #ifdef CONFIG_PM | |
6235 | static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) | |
6236 | { | |
6237 | int retval; | |
6238 | bool wake; | |
6239 | ||
6240 | retval = __ixgbe_shutdown(pdev, &wake); | |
6241 | if (retval) | |
6242 | return retval; | |
6243 | ||
6244 | if (wake) { | |
6245 | pci_prepare_to_sleep(pdev); | |
6246 | } else { | |
6247 | pci_wake_from_d3(pdev, false); | |
6248 | pci_set_power_state(pdev, PCI_D3hot); | |
6249 | } | |
b3c8b4ba AD |
6250 | |
6251 | return 0; | |
6252 | } | |
9d8d05ae | 6253 | #endif /* CONFIG_PM */ |
b3c8b4ba AD |
6254 | |
6255 | static void ixgbe_shutdown(struct pci_dev *pdev) | |
6256 | { | |
9d8d05ae RW |
6257 | bool wake; |
6258 | ||
6259 | __ixgbe_shutdown(pdev, &wake); | |
6260 | ||
6261 | if (system_state == SYSTEM_POWER_OFF) { | |
6262 | pci_wake_from_d3(pdev, wake); | |
6263 | pci_set_power_state(pdev, PCI_D3hot); | |
6264 | } | |
b3c8b4ba AD |
6265 | } |
6266 | ||
9a799d71 AK |
6267 | /** |
6268 | * ixgbe_update_stats - Update the board statistics counters. | |
6269 | * @adapter: board private structure | |
6270 | **/ | |
6271 | void ixgbe_update_stats(struct ixgbe_adapter *adapter) | |
6272 | { | |
2d86f139 | 6273 | struct net_device *netdev = adapter->netdev; |
9a799d71 | 6274 | struct ixgbe_hw *hw = &adapter->hw; |
5b7da515 | 6275 | struct ixgbe_hw_stats *hwstats = &adapter->stats; |
6f11eef7 AV |
6276 | u64 total_mpc = 0; |
6277 | u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; | |
5b7da515 AD |
6278 | u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0; |
6279 | u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0; | |
8a0da21b | 6280 | u64 bytes = 0, packets = 0, hw_csum_rx_error = 0; |
9a799d71 | 6281 | |
d08935c2 DS |
6282 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
6283 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
6284 | return; | |
6285 | ||
94b982b2 | 6286 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
f8212f97 | 6287 | u64 rsc_count = 0; |
94b982b2 | 6288 | u64 rsc_flush = 0; |
94b982b2 | 6289 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5b7da515 AD |
6290 | rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count; |
6291 | rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush; | |
94b982b2 MC |
6292 | } |
6293 | adapter->rsc_total_count = rsc_count; | |
6294 | adapter->rsc_total_flush = rsc_flush; | |
d51019a4 PW |
6295 | } |
6296 | ||
5b7da515 AD |
6297 | for (i = 0; i < adapter->num_rx_queues; i++) { |
6298 | struct ixgbe_ring *rx_ring = adapter->rx_ring[i]; | |
6299 | non_eop_descs += rx_ring->rx_stats.non_eop_descs; | |
6300 | alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed; | |
6301 | alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed; | |
8a0da21b | 6302 | hw_csum_rx_error += rx_ring->rx_stats.csum_err; |
5b7da515 AD |
6303 | bytes += rx_ring->stats.bytes; |
6304 | packets += rx_ring->stats.packets; | |
6305 | } | |
6306 | adapter->non_eop_descs = non_eop_descs; | |
6307 | adapter->alloc_rx_page_failed = alloc_rx_page_failed; | |
6308 | adapter->alloc_rx_buff_failed = alloc_rx_buff_failed; | |
8a0da21b | 6309 | adapter->hw_csum_rx_error = hw_csum_rx_error; |
5b7da515 AD |
6310 | netdev->stats.rx_bytes = bytes; |
6311 | netdev->stats.rx_packets = packets; | |
6312 | ||
6313 | bytes = 0; | |
6314 | packets = 0; | |
7ca3bc58 | 6315 | /* gather some stats to the adapter struct that are per queue */ |
5b7da515 AD |
6316 | for (i = 0; i < adapter->num_tx_queues; i++) { |
6317 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
6318 | restart_queue += tx_ring->tx_stats.restart_queue; | |
6319 | tx_busy += tx_ring->tx_stats.tx_busy; | |
6320 | bytes += tx_ring->stats.bytes; | |
6321 | packets += tx_ring->stats.packets; | |
6322 | } | |
eb985f09 | 6323 | adapter->restart_queue = restart_queue; |
5b7da515 AD |
6324 | adapter->tx_busy = tx_busy; |
6325 | netdev->stats.tx_bytes = bytes; | |
6326 | netdev->stats.tx_packets = packets; | |
7ca3bc58 | 6327 | |
7ca647bd | 6328 | hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); |
1a70db4b ET |
6329 | |
6330 | /* 8 register reads */ | |
6f11eef7 AV |
6331 | for (i = 0; i < 8; i++) { |
6332 | /* for packet buffers not used, the register should read 0 */ | |
6333 | mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i)); | |
6334 | missed_rx += mpc; | |
7ca647bd JP |
6335 | hwstats->mpc[i] += mpc; |
6336 | total_mpc += hwstats->mpc[i]; | |
1a70db4b ET |
6337 | hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); |
6338 | hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); | |
bd508178 AD |
6339 | switch (hw->mac.type) { |
6340 | case ixgbe_mac_82598EB: | |
1a70db4b ET |
6341 | hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); |
6342 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); | |
6343 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); | |
7ca647bd JP |
6344 | hwstats->pxonrxc[i] += |
6345 | IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); | |
bd508178 AD |
6346 | break; |
6347 | case ixgbe_mac_82599EB: | |
b93a2226 | 6348 | case ixgbe_mac_X540: |
9a75a1ac DS |
6349 | case ixgbe_mac_X550: |
6350 | case ixgbe_mac_X550EM_x: | |
bd508178 AD |
6351 | hwstats->pxonrxc[i] += |
6352 | IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); | |
bd508178 AD |
6353 | break; |
6354 | default: | |
6355 | break; | |
e8e26350 | 6356 | } |
6f11eef7 | 6357 | } |
1a70db4b ET |
6358 | |
6359 | /*16 register reads */ | |
6360 | for (i = 0; i < 16; i++) { | |
6361 | hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); | |
6362 | hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); | |
6363 | if ((hw->mac.type == ixgbe_mac_82599EB) || | |
9a75a1ac DS |
6364 | (hw->mac.type == ixgbe_mac_X540) || |
6365 | (hw->mac.type == ixgbe_mac_X550) || | |
6366 | (hw->mac.type == ixgbe_mac_X550EM_x)) { | |
1a70db4b ET |
6367 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC_L(i)); |
6368 | IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)); /* to clear */ | |
6369 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC_L(i)); | |
6370 | IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)); /* to clear */ | |
6371 | } | |
6372 | } | |
6373 | ||
7ca647bd | 6374 | hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); |
6f11eef7 | 6375 | /* work around hardware counting issue */ |
7ca647bd | 6376 | hwstats->gprc -= missed_rx; |
6f11eef7 | 6377 | |
c84d324c JF |
6378 | ixgbe_update_xoff_received(adapter); |
6379 | ||
6f11eef7 | 6380 | /* 82598 hardware only has a 32 bit counter in the high register */ |
bd508178 AD |
6381 | switch (hw->mac.type) { |
6382 | case ixgbe_mac_82598EB: | |
6383 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); | |
bd508178 AD |
6384 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); |
6385 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); | |
6386 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH); | |
6387 | break; | |
b93a2226 | 6388 | case ixgbe_mac_X540: |
9a75a1ac DS |
6389 | case ixgbe_mac_X550: |
6390 | case ixgbe_mac_X550EM_x: | |
6391 | /* OS2BMC stats are X540 and later */ | |
58f6bcf9 ET |
6392 | hwstats->o2bgptc += IXGBE_READ_REG(hw, IXGBE_O2BGPTC); |
6393 | hwstats->o2bspc += IXGBE_READ_REG(hw, IXGBE_O2BSPC); | |
6394 | hwstats->b2ospc += IXGBE_READ_REG(hw, IXGBE_B2OSPC); | |
6395 | hwstats->b2ogprc += IXGBE_READ_REG(hw, IXGBE_B2OGPRC); | |
6396 | case ixgbe_mac_82599EB: | |
a4d4f629 AD |
6397 | for (i = 0; i < 16; i++) |
6398 | adapter->hw_rx_no_dma_resources += | |
6399 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); | |
7ca647bd | 6400 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); |
bd508178 | 6401 | IXGBE_READ_REG(hw, IXGBE_GORCH); /* to clear */ |
7ca647bd | 6402 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); |
bd508178 | 6403 | IXGBE_READ_REG(hw, IXGBE_GOTCH); /* to clear */ |
7ca647bd | 6404 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL); |
bd508178 | 6405 | IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ |
7ca647bd | 6406 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); |
7ca647bd JP |
6407 | hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
6408 | hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS); | |
6d45522c | 6409 | #ifdef IXGBE_FCOE |
7ca647bd JP |
6410 | hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC); |
6411 | hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC); | |
6412 | hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC); | |
6413 | hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC); | |
6414 | hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC); | |
6415 | hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC); | |
7b859ebc | 6416 | /* Add up per cpu counters for total ddp aloc fail */ |
5a1ee270 AD |
6417 | if (adapter->fcoe.ddp_pool) { |
6418 | struct ixgbe_fcoe *fcoe = &adapter->fcoe; | |
6419 | struct ixgbe_fcoe_ddp_pool *ddp_pool; | |
6420 | unsigned int cpu; | |
6421 | u64 noddp = 0, noddp_ext_buff = 0; | |
7b859ebc | 6422 | for_each_possible_cpu(cpu) { |
5a1ee270 AD |
6423 | ddp_pool = per_cpu_ptr(fcoe->ddp_pool, cpu); |
6424 | noddp += ddp_pool->noddp; | |
6425 | noddp_ext_buff += ddp_pool->noddp_ext_buff; | |
7b859ebc | 6426 | } |
5a1ee270 AD |
6427 | hwstats->fcoe_noddp = noddp; |
6428 | hwstats->fcoe_noddp_ext_buff = noddp_ext_buff; | |
7b859ebc | 6429 | } |
6d45522c | 6430 | #endif /* IXGBE_FCOE */ |
bd508178 AD |
6431 | break; |
6432 | default: | |
6433 | break; | |
e8e26350 | 6434 | } |
9a799d71 | 6435 | bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); |
7ca647bd JP |
6436 | hwstats->bprc += bprc; |
6437 | hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); | |
e8e26350 | 6438 | if (hw->mac.type == ixgbe_mac_82598EB) |
7ca647bd JP |
6439 | hwstats->mprc -= bprc; |
6440 | hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC); | |
6441 | hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); | |
6442 | hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); | |
6443 | hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255); | |
6444 | hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511); | |
6445 | hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); | |
6446 | hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); | |
6447 | hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); | |
6f11eef7 | 6448 | lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); |
7ca647bd | 6449 | hwstats->lxontxc += lxon; |
6f11eef7 | 6450 | lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); |
7ca647bd | 6451 | hwstats->lxofftxc += lxoff; |
7ca647bd JP |
6452 | hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC); |
6453 | hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC); | |
6f11eef7 AV |
6454 | /* |
6455 | * 82598 errata - tx of flow control packets is included in tx counters | |
6456 | */ | |
6457 | xon_off_tot = lxon + lxoff; | |
7ca647bd JP |
6458 | hwstats->gptc -= xon_off_tot; |
6459 | hwstats->mptc -= xon_off_tot; | |
6460 | hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN)); | |
6461 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); | |
6462 | hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC); | |
6463 | hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC); | |
6464 | hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR); | |
6465 | hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64); | |
6466 | hwstats->ptc64 -= xon_off_tot; | |
6467 | hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127); | |
6468 | hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255); | |
6469 | hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511); | |
6470 | hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023); | |
6471 | hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522); | |
6472 | hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC); | |
9a799d71 AK |
6473 | |
6474 | /* Fill out the OS statistics structure */ | |
7ca647bd | 6475 | netdev->stats.multicast = hwstats->mprc; |
9a799d71 AK |
6476 | |
6477 | /* Rx Errors */ | |
7ca647bd | 6478 | netdev->stats.rx_errors = hwstats->crcerrs + hwstats->rlec; |
2d86f139 | 6479 | netdev->stats.rx_dropped = 0; |
7ca647bd JP |
6480 | netdev->stats.rx_length_errors = hwstats->rlec; |
6481 | netdev->stats.rx_crc_errors = hwstats->crcerrs; | |
2d86f139 | 6482 | netdev->stats.rx_missed_errors = total_mpc; |
9a799d71 AK |
6483 | } |
6484 | ||
6485 | /** | |
d034acf1 | 6486 | * ixgbe_fdir_reinit_subtask - worker thread to reinit FDIR filter table |
49ce9c2c | 6487 | * @adapter: pointer to the device adapter structure |
9a799d71 | 6488 | **/ |
d034acf1 | 6489 | static void ixgbe_fdir_reinit_subtask(struct ixgbe_adapter *adapter) |
9a799d71 | 6490 | { |
cf8280ee | 6491 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 6492 | int i; |
cf8280ee | 6493 | |
d034acf1 AD |
6494 | if (!(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) |
6495 | return; | |
6496 | ||
6497 | adapter->flags2 &= ~IXGBE_FLAG2_FDIR_REQUIRES_REINIT; | |
22d5a71b | 6498 | |
d034acf1 | 6499 | /* if interface is down do nothing */ |
fe49f04a | 6500 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
d034acf1 AD |
6501 | return; |
6502 | ||
6503 | /* do nothing if we are not using signature filters */ | |
6504 | if (!(adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) | |
6505 | return; | |
6506 | ||
6507 | adapter->fdir_overflow++; | |
6508 | ||
93c52dd0 AD |
6509 | if (ixgbe_reinit_fdir_tables_82599(hw) == 0) { |
6510 | for (i = 0; i < adapter->num_tx_queues; i++) | |
6511 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, | |
e7cf745b | 6512 | &(adapter->tx_ring[i]->state)); |
d034acf1 AD |
6513 | /* re-enable flow director interrupts */ |
6514 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_FLOW_DIR); | |
93c52dd0 AD |
6515 | } else { |
6516 | e_err(probe, "failed to finish FDIR re-initialization, " | |
6517 | "ignored adding FDIR ATR filters\n"); | |
6518 | } | |
93c52dd0 AD |
6519 | } |
6520 | ||
6521 | /** | |
6522 | * ixgbe_check_hang_subtask - check for hung queues and dropped interrupts | |
49ce9c2c | 6523 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6524 | * |
6525 | * This function serves two purposes. First it strobes the interrupt lines | |
52f33af8 | 6526 | * in order to make certain interrupts are occurring. Secondly it sets the |
93c52dd0 | 6527 | * bits needed to check for TX hangs. As a result we should immediately |
52f33af8 | 6528 | * determine if a hang has occurred. |
93c52dd0 AD |
6529 | */ |
6530 | static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter) | |
9a799d71 | 6531 | { |
cf8280ee | 6532 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a AD |
6533 | u64 eics = 0; |
6534 | int i; | |
cf8280ee | 6535 | |
09f40aed | 6536 | /* If we're down, removing or resetting, just bail */ |
93c52dd0 | 6537 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 6538 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
93c52dd0 AD |
6539 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
6540 | return; | |
22d5a71b | 6541 | |
93c52dd0 AD |
6542 | /* Force detection of hung controller */ |
6543 | if (netif_carrier_ok(adapter->netdev)) { | |
6544 | for (i = 0; i < adapter->num_tx_queues; i++) | |
6545 | set_check_for_tx_hang(adapter->tx_ring[i]); | |
6546 | } | |
22d5a71b | 6547 | |
fe49f04a AD |
6548 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
6549 | /* | |
6550 | * for legacy and MSI interrupts don't set any bits | |
6551 | * that are enabled for EIAM, because this operation | |
6552 | * would set *both* EIMS and EICS for any bit in EIAM | |
6553 | */ | |
6554 | IXGBE_WRITE_REG(hw, IXGBE_EICS, | |
6555 | (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); | |
93c52dd0 AD |
6556 | } else { |
6557 | /* get one bit for every active tx/rx interrupt vector */ | |
49c7ffbe | 6558 | for (i = 0; i < adapter->num_q_vectors; i++) { |
93c52dd0 | 6559 | struct ixgbe_q_vector *qv = adapter->q_vector[i]; |
efe3d3c8 | 6560 | if (qv->rx.ring || qv->tx.ring) |
93c52dd0 AD |
6561 | eics |= ((u64)1 << i); |
6562 | } | |
cf8280ee | 6563 | } |
9a799d71 | 6564 | |
93c52dd0 | 6565 | /* Cause software interrupt to ensure rings are cleaned */ |
fe49f04a | 6566 | ixgbe_irq_rearm_queues(adapter, eics); |
cf8280ee JB |
6567 | } |
6568 | ||
e8e26350 | 6569 | /** |
93c52dd0 | 6570 | * ixgbe_watchdog_update_link - update the link status |
49ce9c2c BH |
6571 | * @adapter: pointer to the device adapter structure |
6572 | * @link_speed: pointer to a u32 to store the link_speed | |
e8e26350 | 6573 | **/ |
93c52dd0 | 6574 | static void ixgbe_watchdog_update_link(struct ixgbe_adapter *adapter) |
e8e26350 | 6575 | { |
e8e26350 | 6576 | struct ixgbe_hw *hw = &adapter->hw; |
93c52dd0 AD |
6577 | u32 link_speed = adapter->link_speed; |
6578 | bool link_up = adapter->link_up; | |
041441d0 | 6579 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; |
e8e26350 | 6580 | |
93c52dd0 AD |
6581 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) |
6582 | return; | |
6583 | ||
6584 | if (hw->mac.ops.check_link) { | |
6585 | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); | |
c4cf55e5 | 6586 | } else { |
93c52dd0 AD |
6587 | /* always assume link is up, if no check link function */ |
6588 | link_speed = IXGBE_LINK_SPEED_10GB_FULL; | |
6589 | link_up = true; | |
c4cf55e5 | 6590 | } |
041441d0 AD |
6591 | |
6592 | if (adapter->ixgbe_ieee_pfc) | |
6593 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
6594 | ||
3ebe8fde | 6595 | if (link_up && !((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && pfc_en)) { |
041441d0 | 6596 | hw->mac.ops.fc_enable(hw); |
3ebe8fde AD |
6597 | ixgbe_set_rx_drop_en(adapter); |
6598 | } | |
93c52dd0 AD |
6599 | |
6600 | if (link_up || | |
6601 | time_after(jiffies, (adapter->link_check_timeout + | |
6602 | IXGBE_TRY_LINK_TIMEOUT))) { | |
6603 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; | |
6604 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC); | |
6605 | IXGBE_WRITE_FLUSH(hw); | |
6606 | } | |
6607 | ||
6608 | adapter->link_up = link_up; | |
6609 | adapter->link_speed = link_speed; | |
e8e26350 PW |
6610 | } |
6611 | ||
107d3018 AD |
6612 | static void ixgbe_update_default_up(struct ixgbe_adapter *adapter) |
6613 | { | |
6614 | #ifdef CONFIG_IXGBE_DCB | |
6615 | struct net_device *netdev = adapter->netdev; | |
6616 | struct dcb_app app = { | |
6617 | .selector = IEEE_8021QAZ_APP_SEL_ETHERTYPE, | |
6618 | .protocol = 0, | |
6619 | }; | |
6620 | u8 up = 0; | |
6621 | ||
6622 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) | |
6623 | up = dcb_ieee_getapp_mask(netdev, &app); | |
6624 | ||
6625 | adapter->default_up = (up > 1) ? (ffs(up) - 1) : 0; | |
6626 | #endif | |
6627 | } | |
6628 | ||
e8e26350 | 6629 | /** |
93c52dd0 AD |
6630 | * ixgbe_watchdog_link_is_up - update netif_carrier status and |
6631 | * print link up message | |
49ce9c2c | 6632 | * @adapter: pointer to the device adapter structure |
e8e26350 | 6633 | **/ |
93c52dd0 | 6634 | static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter) |
e8e26350 | 6635 | { |
93c52dd0 | 6636 | struct net_device *netdev = adapter->netdev; |
e8e26350 | 6637 | struct ixgbe_hw *hw = &adapter->hw; |
cdc04dcc ET |
6638 | struct net_device *upper; |
6639 | struct list_head *iter; | |
93c52dd0 | 6640 | u32 link_speed = adapter->link_speed; |
454adb00 | 6641 | const char *speed_str; |
93c52dd0 | 6642 | bool flow_rx, flow_tx; |
e8e26350 | 6643 | |
93c52dd0 AD |
6644 | /* only continue if link was previously down */ |
6645 | if (netif_carrier_ok(netdev)) | |
a985b6c3 | 6646 | return; |
63d6e1d8 | 6647 | |
93c52dd0 | 6648 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
63d6e1d8 | 6649 | |
93c52dd0 AD |
6650 | switch (hw->mac.type) { |
6651 | case ixgbe_mac_82598EB: { | |
6652 | u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
6653 | u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); | |
6654 | flow_rx = !!(frctl & IXGBE_FCTRL_RFCE); | |
6655 | flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X); | |
6656 | } | |
6657 | break; | |
6658 | case ixgbe_mac_X540: | |
9a75a1ac DS |
6659 | case ixgbe_mac_X550: |
6660 | case ixgbe_mac_X550EM_x: | |
93c52dd0 AD |
6661 | case ixgbe_mac_82599EB: { |
6662 | u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); | |
6663 | u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); | |
6664 | flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE); | |
6665 | flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X); | |
6666 | } | |
6667 | break; | |
6668 | default: | |
6669 | flow_tx = false; | |
6670 | flow_rx = false; | |
6671 | break; | |
e8e26350 | 6672 | } |
3a6a4eda | 6673 | |
6cb562d6 JK |
6674 | adapter->last_rx_ptp_check = jiffies; |
6675 | ||
8fecf67c | 6676 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 6677 | ixgbe_ptp_start_cyclecounter(adapter); |
3a6a4eda | 6678 | |
454adb00 MR |
6679 | switch (link_speed) { |
6680 | case IXGBE_LINK_SPEED_10GB_FULL: | |
6681 | speed_str = "10 Gbps"; | |
6682 | break; | |
6683 | case IXGBE_LINK_SPEED_2_5GB_FULL: | |
6684 | speed_str = "2.5 Gbps"; | |
6685 | break; | |
6686 | case IXGBE_LINK_SPEED_1GB_FULL: | |
6687 | speed_str = "1 Gbps"; | |
6688 | break; | |
6689 | case IXGBE_LINK_SPEED_100_FULL: | |
6690 | speed_str = "100 Mbps"; | |
6691 | break; | |
6692 | default: | |
6693 | speed_str = "unknown speed"; | |
6694 | break; | |
6695 | } | |
6696 | e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", speed_str, | |
93c52dd0 AD |
6697 | ((flow_rx && flow_tx) ? "RX/TX" : |
6698 | (flow_rx ? "RX" : | |
6699 | (flow_tx ? "TX" : "None")))); | |
e8e26350 | 6700 | |
93c52dd0 | 6701 | netif_carrier_on(netdev); |
93c52dd0 | 6702 | ixgbe_check_vf_rate_limit(adapter); |
befa2af7 | 6703 | |
cdc04dcc ET |
6704 | /* enable transmits */ |
6705 | netif_tx_wake_all_queues(adapter->netdev); | |
6706 | ||
6707 | /* enable any upper devices */ | |
6708 | rtnl_lock(); | |
6709 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
6710 | if (netif_is_macvlan(upper)) { | |
6711 | struct macvlan_dev *vlan = netdev_priv(upper); | |
6712 | ||
6713 | if (vlan->fwd_priv) | |
6714 | netif_tx_wake_all_queues(upper); | |
6715 | } | |
6716 | } | |
6717 | rtnl_unlock(); | |
6718 | ||
107d3018 AD |
6719 | /* update the default user priority for VFs */ |
6720 | ixgbe_update_default_up(adapter); | |
6721 | ||
befa2af7 AD |
6722 | /* ping all the active vfs to let them know link has changed */ |
6723 | ixgbe_ping_all_vfs(adapter); | |
e8e26350 PW |
6724 | } |
6725 | ||
c4cf55e5 | 6726 | /** |
93c52dd0 AD |
6727 | * ixgbe_watchdog_link_is_down - update netif_carrier status and |
6728 | * print link down message | |
49ce9c2c | 6729 | * @adapter: pointer to the adapter structure |
c4cf55e5 | 6730 | **/ |
581330ba | 6731 | static void ixgbe_watchdog_link_is_down(struct ixgbe_adapter *adapter) |
c4cf55e5 | 6732 | { |
cf8280ee | 6733 | struct net_device *netdev = adapter->netdev; |
c4cf55e5 | 6734 | struct ixgbe_hw *hw = &adapter->hw; |
10eec955 | 6735 | |
93c52dd0 AD |
6736 | adapter->link_up = false; |
6737 | adapter->link_speed = 0; | |
cf8280ee | 6738 | |
93c52dd0 AD |
6739 | /* only continue if link was up previously */ |
6740 | if (!netif_carrier_ok(netdev)) | |
6741 | return; | |
264857b8 | 6742 | |
93c52dd0 AD |
6743 | /* poll for SFP+ cable when link is down */ |
6744 | if (ixgbe_is_sfp(hw) && hw->mac.type == ixgbe_mac_82598EB) | |
6745 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
9a799d71 | 6746 | |
8fecf67c | 6747 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 6748 | ixgbe_ptp_start_cyclecounter(adapter); |
3a6a4eda | 6749 | |
93c52dd0 AD |
6750 | e_info(drv, "NIC Link is Down\n"); |
6751 | netif_carrier_off(netdev); | |
befa2af7 AD |
6752 | |
6753 | /* ping all the active vfs to let them know link has changed */ | |
6754 | ixgbe_ping_all_vfs(adapter); | |
93c52dd0 | 6755 | } |
e8e26350 | 6756 | |
07923c17 ET |
6757 | static bool ixgbe_ring_tx_pending(struct ixgbe_adapter *adapter) |
6758 | { | |
6759 | int i; | |
6760 | ||
6761 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
6762 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
6763 | ||
6764 | if (tx_ring->next_to_use != tx_ring->next_to_clean) | |
6765 | return true; | |
6766 | } | |
6767 | ||
6768 | return false; | |
6769 | } | |
6770 | ||
6771 | static bool ixgbe_vf_tx_pending(struct ixgbe_adapter *adapter) | |
6772 | { | |
6773 | struct ixgbe_hw *hw = &adapter->hw; | |
6774 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; | |
6775 | u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); | |
6776 | ||
6777 | int i, j; | |
6778 | ||
6779 | if (!adapter->num_vfs) | |
6780 | return false; | |
6781 | ||
9a75a1ac DS |
6782 | /* resetting the PF is only needed for MAC before X550 */ |
6783 | if (hw->mac.type >= ixgbe_mac_X550) | |
6784 | return false; | |
6785 | ||
07923c17 ET |
6786 | for (i = 0; i < adapter->num_vfs; i++) { |
6787 | for (j = 0; j < q_per_pool; j++) { | |
6788 | u32 h, t; | |
6789 | ||
6790 | h = IXGBE_READ_REG(hw, IXGBE_PVFTDHN(q_per_pool, i, j)); | |
6791 | t = IXGBE_READ_REG(hw, IXGBE_PVFTDTN(q_per_pool, i, j)); | |
6792 | ||
6793 | if (h != t) | |
6794 | return true; | |
6795 | } | |
6796 | } | |
6797 | ||
6798 | return false; | |
6799 | } | |
6800 | ||
93c52dd0 AD |
6801 | /** |
6802 | * ixgbe_watchdog_flush_tx - flush queues on link down | |
49ce9c2c | 6803 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6804 | **/ |
6805 | static void ixgbe_watchdog_flush_tx(struct ixgbe_adapter *adapter) | |
6806 | { | |
93c52dd0 | 6807 | if (!netif_carrier_ok(adapter->netdev)) { |
07923c17 ET |
6808 | if (ixgbe_ring_tx_pending(adapter) || |
6809 | ixgbe_vf_tx_pending(adapter)) { | |
bc59fcda NS |
6810 | /* We've lost link, so the controller stops DMA, |
6811 | * but we've got queued Tx work that's never going | |
6812 | * to get done, so reset controller to flush Tx. | |
6813 | * (Do the reset outside of interrupt context). | |
6814 | */ | |
12ff3f3b | 6815 | e_warn(drv, "initiating reset to clear Tx work after link loss\n"); |
c83c6cbd | 6816 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; |
bc59fcda | 6817 | } |
c4cf55e5 | 6818 | } |
c4cf55e5 PWJ |
6819 | } |
6820 | ||
9079e416 ET |
6821 | #ifdef CONFIG_PCI_IOV |
6822 | static inline void ixgbe_issue_vf_flr(struct ixgbe_adapter *adapter, | |
6823 | struct pci_dev *vfdev) | |
6824 | { | |
6825 | if (!pci_wait_for_pending_transaction(vfdev)) | |
6826 | e_dev_warn("Issuing VFLR with pending transactions\n"); | |
6827 | ||
6828 | e_dev_err("Issuing VFLR for VF %s\n", pci_name(vfdev)); | |
6829 | pcie_capability_set_word(vfdev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR); | |
6830 | ||
6831 | msleep(100); | |
6832 | } | |
6833 | ||
6834 | static void ixgbe_check_for_bad_vf(struct ixgbe_adapter *adapter) | |
6835 | { | |
6836 | struct ixgbe_hw *hw = &adapter->hw; | |
6837 | struct pci_dev *pdev = adapter->pdev; | |
988d1307 | 6838 | unsigned int vf; |
9079e416 | 6839 | u32 gpc; |
9079e416 ET |
6840 | |
6841 | if (!(netif_carrier_ok(adapter->netdev))) | |
6842 | return; | |
6843 | ||
6844 | gpc = IXGBE_READ_REG(hw, IXGBE_TXDGPC); | |
6845 | if (gpc) /* If incrementing then no need for the check below */ | |
6846 | return; | |
6847 | /* Check to see if a bad DMA write target from an errant or | |
6848 | * malicious VF has caused a PCIe error. If so then we can | |
6849 | * issue a VFLR to the offending VF(s) and then resume without | |
6850 | * requesting a full slot reset. | |
6851 | */ | |
6852 | ||
6853 | if (!pdev) | |
6854 | return; | |
6855 | ||
9079e416 | 6856 | /* check status reg for all VFs owned by this PF */ |
988d1307 MR |
6857 | for (vf = 0; vf < adapter->num_vfs; ++vf) { |
6858 | struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev; | |
6859 | u16 status_reg; | |
9079e416 | 6860 | |
988d1307 MR |
6861 | if (!vfdev) |
6862 | continue; | |
6863 | pci_read_config_word(vfdev, PCI_STATUS, &status_reg); | |
6864 | if (status_reg != IXGBE_FAILED_READ_CFG_WORD && | |
6865 | status_reg & PCI_STATUS_REC_MASTER_ABORT) | |
6866 | ixgbe_issue_vf_flr(adapter, vfdev); | |
9079e416 ET |
6867 | } |
6868 | } | |
6869 | ||
a985b6c3 GR |
6870 | static void ixgbe_spoof_check(struct ixgbe_adapter *adapter) |
6871 | { | |
6872 | u32 ssvpc; | |
6873 | ||
0584d999 GR |
6874 | /* Do not perform spoof check for 82598 or if not in IOV mode */ |
6875 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
6876 | adapter->num_vfs == 0) | |
a985b6c3 GR |
6877 | return; |
6878 | ||
6879 | ssvpc = IXGBE_READ_REG(&adapter->hw, IXGBE_SSVPC); | |
6880 | ||
6881 | /* | |
6882 | * ssvpc register is cleared on read, if zero then no | |
6883 | * spoofed packets in the last interval. | |
6884 | */ | |
6885 | if (!ssvpc) | |
6886 | return; | |
6887 | ||
d6ea0754 | 6888 | e_warn(drv, "%u Spoofed packets detected\n", ssvpc); |
a985b6c3 | 6889 | } |
9079e416 ET |
6890 | #else |
6891 | static void ixgbe_spoof_check(struct ixgbe_adapter __always_unused *adapter) | |
6892 | { | |
6893 | } | |
6894 | ||
6895 | static void | |
6896 | ixgbe_check_for_bad_vf(struct ixgbe_adapter __always_unused *adapter) | |
6897 | { | |
6898 | } | |
6899 | #endif /* CONFIG_PCI_IOV */ | |
6900 | ||
a985b6c3 | 6901 | |
93c52dd0 AD |
6902 | /** |
6903 | * ixgbe_watchdog_subtask - check and bring link up | |
49ce9c2c | 6904 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6905 | **/ |
6906 | static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter) | |
6907 | { | |
09f40aed | 6908 | /* if interface is down, removing or resetting, do nothing */ |
7edebf9a | 6909 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 6910 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
7edebf9a | 6911 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
93c52dd0 AD |
6912 | return; |
6913 | ||
6914 | ixgbe_watchdog_update_link(adapter); | |
6915 | ||
6916 | if (adapter->link_up) | |
6917 | ixgbe_watchdog_link_is_up(adapter); | |
6918 | else | |
6919 | ixgbe_watchdog_link_is_down(adapter); | |
bc59fcda | 6920 | |
9079e416 | 6921 | ixgbe_check_for_bad_vf(adapter); |
a985b6c3 | 6922 | ixgbe_spoof_check(adapter); |
9a799d71 | 6923 | ixgbe_update_stats(adapter); |
93c52dd0 AD |
6924 | |
6925 | ixgbe_watchdog_flush_tx(adapter); | |
9a799d71 | 6926 | } |
10eec955 | 6927 | |
cf8280ee | 6928 | /** |
7086400d | 6929 | * ixgbe_sfp_detection_subtask - poll for SFP+ cable |
49ce9c2c | 6930 | * @adapter: the ixgbe adapter structure |
cf8280ee | 6931 | **/ |
7086400d | 6932 | static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter) |
cf8280ee | 6933 | { |
cf8280ee | 6934 | struct ixgbe_hw *hw = &adapter->hw; |
7086400d | 6935 | s32 err; |
cf8280ee | 6936 | |
7086400d AD |
6937 | /* not searching for SFP so there is nothing to do here */ |
6938 | if (!(adapter->flags2 & IXGBE_FLAG2_SEARCH_FOR_SFP) && | |
6939 | !(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6940 | return; | |
10eec955 | 6941 | |
58e7cd24 MR |
6942 | if (adapter->sfp_poll_time && |
6943 | time_after(adapter->sfp_poll_time, jiffies)) | |
6944 | return; /* If not yet time to poll for SFP */ | |
6945 | ||
7086400d AD |
6946 | /* someone else is in init, wait until next service event */ |
6947 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
6948 | return; | |
cf8280ee | 6949 | |
58e7cd24 MR |
6950 | adapter->sfp_poll_time = jiffies + IXGBE_SFP_POLL_JIFFIES - 1; |
6951 | ||
7086400d AD |
6952 | err = hw->phy.ops.identify_sfp(hw); |
6953 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6954 | goto sfp_out; | |
264857b8 | 6955 | |
7086400d AD |
6956 | if (err == IXGBE_ERR_SFP_NOT_PRESENT) { |
6957 | /* If no cable is present, then we need to reset | |
6958 | * the next time we find a good cable. */ | |
6959 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
cf8280ee | 6960 | } |
9a799d71 | 6961 | |
7086400d AD |
6962 | /* exit on error */ |
6963 | if (err) | |
6964 | goto sfp_out; | |
e8e26350 | 6965 | |
7086400d AD |
6966 | /* exit if reset not needed */ |
6967 | if (!(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6968 | goto sfp_out; | |
9a799d71 | 6969 | |
7086400d | 6970 | adapter->flags2 &= ~IXGBE_FLAG2_SFP_NEEDS_RESET; |
bc59fcda | 6971 | |
7086400d AD |
6972 | /* |
6973 | * A module may be identified correctly, but the EEPROM may not have | |
6974 | * support for that module. setup_sfp() will fail in that case, so | |
6975 | * we should not allow that module to load. | |
6976 | */ | |
6977 | if (hw->mac.type == ixgbe_mac_82598EB) | |
6978 | err = hw->phy.ops.reset(hw); | |
6979 | else | |
6980 | err = hw->mac.ops.setup_sfp(hw); | |
6981 | ||
6982 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6983 | goto sfp_out; | |
6984 | ||
6985 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
6986 | e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); | |
6987 | ||
6988 | sfp_out: | |
6989 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
6990 | ||
6991 | if ((err == IXGBE_ERR_SFP_NOT_SUPPORTED) && | |
6992 | (adapter->netdev->reg_state == NETREG_REGISTERED)) { | |
6993 | e_dev_err("failed to initialize because an unsupported " | |
6994 | "SFP+ module type was detected.\n"); | |
6995 | e_dev_err("Reload the driver after installing a " | |
6996 | "supported module.\n"); | |
6997 | unregister_netdev(adapter->netdev); | |
bc59fcda | 6998 | } |
7086400d | 6999 | } |
bc59fcda | 7000 | |
7086400d AD |
7001 | /** |
7002 | * ixgbe_sfp_link_config_subtask - set up link SFP after module install | |
49ce9c2c | 7003 | * @adapter: the ixgbe adapter structure |
7086400d AD |
7004 | **/ |
7005 | static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter *adapter) | |
7006 | { | |
7007 | struct ixgbe_hw *hw = &adapter->hw; | |
3d292265 JH |
7008 | u32 speed; |
7009 | bool autoneg = false; | |
7086400d AD |
7010 | |
7011 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_CONFIG)) | |
7012 | return; | |
7013 | ||
7014 | /* someone else is in init, wait until next service event */ | |
7015 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
7016 | return; | |
7017 | ||
7018 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
7019 | ||
3d292265 | 7020 | speed = hw->phy.autoneg_advertised; |
ed33ff66 | 7021 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) { |
3d292265 | 7022 | hw->mac.ops.get_link_capabilities(hw, &speed, &autoneg); |
ed33ff66 ET |
7023 | |
7024 | /* setup the highest link when no autoneg */ | |
7025 | if (!autoneg) { | |
7026 | if (speed & IXGBE_LINK_SPEED_10GB_FULL) | |
7027 | speed = IXGBE_LINK_SPEED_10GB_FULL; | |
7028 | } | |
7029 | } | |
7030 | ||
7086400d | 7031 | if (hw->mac.ops.setup_link) |
fd0326f2 | 7032 | hw->mac.ops.setup_link(hw, speed, true); |
7086400d AD |
7033 | |
7034 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
7035 | adapter->link_check_timeout = jiffies; | |
7036 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
7037 | } | |
7038 | ||
7039 | /** | |
7040 | * ixgbe_service_timer - Timer Call-back | |
7041 | * @data: pointer to adapter cast into an unsigned long | |
7042 | **/ | |
7043 | static void ixgbe_service_timer(unsigned long data) | |
7044 | { | |
7045 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; | |
7046 | unsigned long next_event_offset; | |
7047 | ||
6bb78cfb AD |
7048 | /* poll faster when waiting for link */ |
7049 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
7050 | next_event_offset = HZ / 10; | |
7051 | else | |
7052 | next_event_offset = HZ * 2; | |
83c61fa9 | 7053 | |
7086400d AD |
7054 | /* Reset the timer */ |
7055 | mod_timer(&adapter->service_timer, next_event_offset + jiffies); | |
7056 | ||
9079e416 | 7057 | ixgbe_service_event_schedule(adapter); |
7086400d AD |
7058 | } |
7059 | ||
597f22d6 DS |
7060 | static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter) |
7061 | { | |
7062 | struct ixgbe_hw *hw = &adapter->hw; | |
7063 | u32 status; | |
7064 | ||
7065 | if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT)) | |
7066 | return; | |
7067 | ||
7068 | adapter->flags2 &= ~IXGBE_FLAG2_PHY_INTERRUPT; | |
7069 | ||
7070 | if (!hw->phy.ops.handle_lasi) | |
7071 | return; | |
7072 | ||
7073 | status = hw->phy.ops.handle_lasi(&adapter->hw); | |
7074 | if (status != IXGBE_ERR_OVERTEMP) | |
7075 | return; | |
7076 | ||
7077 | e_crit(drv, "%s\n", ixgbe_overheat_msg); | |
7078 | } | |
7079 | ||
c83c6cbd AD |
7080 | static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter) |
7081 | { | |
7082 | if (!(adapter->flags2 & IXGBE_FLAG2_RESET_REQUESTED)) | |
7083 | return; | |
7084 | ||
7085 | adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED; | |
7086 | ||
09f40aed | 7087 | /* If we're already down, removing or resetting, just bail */ |
c83c6cbd | 7088 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 7089 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
c83c6cbd AD |
7090 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
7091 | return; | |
7092 | ||
7093 | ixgbe_dump(adapter); | |
7094 | netdev_err(adapter->netdev, "Reset adapter\n"); | |
7095 | adapter->tx_timeout_count++; | |
7096 | ||
8f4c5c9f | 7097 | rtnl_lock(); |
c83c6cbd | 7098 | ixgbe_reinit_locked(adapter); |
8f4c5c9f | 7099 | rtnl_unlock(); |
c83c6cbd AD |
7100 | } |
7101 | ||
7086400d AD |
7102 | /** |
7103 | * ixgbe_service_task - manages and runs subtasks | |
7104 | * @work: pointer to work_struct containing our data | |
7105 | **/ | |
7106 | static void ixgbe_service_task(struct work_struct *work) | |
7107 | { | |
7108 | struct ixgbe_adapter *adapter = container_of(work, | |
7109 | struct ixgbe_adapter, | |
7110 | service_task); | |
b0483c8f MR |
7111 | if (ixgbe_removed(adapter->hw.hw_addr)) { |
7112 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
7113 | rtnl_lock(); | |
7114 | ixgbe_down(adapter); | |
7115 | rtnl_unlock(); | |
7116 | } | |
7117 | ixgbe_service_event_complete(adapter); | |
7118 | return; | |
7119 | } | |
67359c3c MR |
7120 | #ifdef CONFIG_IXGBE_VXLAN |
7121 | if (adapter->flags2 & IXGBE_FLAG2_VXLAN_REREG_NEEDED) { | |
7122 | adapter->flags2 &= ~IXGBE_FLAG2_VXLAN_REREG_NEEDED; | |
7123 | vxlan_get_rx_port(adapter->netdev); | |
7124 | } | |
7125 | #endif /* CONFIG_IXGBE_VXLAN */ | |
c83c6cbd | 7126 | ixgbe_reset_subtask(adapter); |
597f22d6 | 7127 | ixgbe_phy_interrupt_subtask(adapter); |
7086400d AD |
7128 | ixgbe_sfp_detection_subtask(adapter); |
7129 | ixgbe_sfp_link_config_subtask(adapter); | |
f0f9778d | 7130 | ixgbe_check_overtemp_subtask(adapter); |
93c52dd0 | 7131 | ixgbe_watchdog_subtask(adapter); |
d034acf1 | 7132 | ixgbe_fdir_reinit_subtask(adapter); |
93c52dd0 | 7133 | ixgbe_check_hang_subtask(adapter); |
891dc082 | 7134 | |
8fecf67c | 7135 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) { |
891dc082 JK |
7136 | ixgbe_ptp_overflow_check(adapter); |
7137 | ixgbe_ptp_rx_hang(adapter); | |
7138 | } | |
7086400d AD |
7139 | |
7140 | ixgbe_service_event_complete(adapter); | |
9a799d71 AK |
7141 | } |
7142 | ||
fd0db0ed AD |
7143 | static int ixgbe_tso(struct ixgbe_ring *tx_ring, |
7144 | struct ixgbe_tx_buffer *first, | |
244e27ad | 7145 | u8 *hdr_len) |
897ab156 | 7146 | { |
fd0db0ed | 7147 | struct sk_buff *skb = first->skb; |
897ab156 AD |
7148 | u32 vlan_macip_lens, type_tucmd; |
7149 | u32 mss_l4len_idx, l4len; | |
2049e1f6 | 7150 | int err; |
9a799d71 | 7151 | |
8f4fbb9b AD |
7152 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
7153 | return 0; | |
7154 | ||
897ab156 AD |
7155 | if (!skb_is_gso(skb)) |
7156 | return 0; | |
9a799d71 | 7157 | |
2049e1f6 FR |
7158 | err = skb_cow_head(skb, 0); |
7159 | if (err < 0) | |
7160 | return err; | |
9a799d71 | 7161 | |
897ab156 AD |
7162 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
7163 | type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP; | |
7164 | ||
a1108ffd | 7165 | if (first->protocol == htons(ETH_P_IP)) { |
897ab156 AD |
7166 | struct iphdr *iph = ip_hdr(skb); |
7167 | iph->tot_len = 0; | |
7168 | iph->check = 0; | |
7169 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
7170 | iph->daddr, 0, | |
7171 | IPPROTO_TCP, | |
7172 | 0); | |
7173 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
244e27ad AD |
7174 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
7175 | IXGBE_TX_FLAGS_CSUM | | |
7176 | IXGBE_TX_FLAGS_IPV4; | |
897ab156 AD |
7177 | } else if (skb_is_gso_v6(skb)) { |
7178 | ipv6_hdr(skb)->payload_len = 0; | |
7179 | tcp_hdr(skb)->check = | |
7180 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, | |
7181 | &ipv6_hdr(skb)->daddr, | |
7182 | 0, IPPROTO_TCP, 0); | |
244e27ad AD |
7183 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
7184 | IXGBE_TX_FLAGS_CSUM; | |
897ab156 AD |
7185 | } |
7186 | ||
091a6246 | 7187 | /* compute header lengths */ |
897ab156 AD |
7188 | l4len = tcp_hdrlen(skb); |
7189 | *hdr_len = skb_transport_offset(skb) + l4len; | |
7190 | ||
091a6246 AD |
7191 | /* update gso size and bytecount with header size */ |
7192 | first->gso_segs = skb_shinfo(skb)->gso_segs; | |
7193 | first->bytecount += (first->gso_segs - 1) * *hdr_len; | |
7194 | ||
c44f5f51 | 7195 | /* mss_l4len_id: use 0 as index for TSO */ |
897ab156 AD |
7196 | mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT; |
7197 | mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT; | |
897ab156 AD |
7198 | |
7199 | /* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */ | |
7200 | vlan_macip_lens = skb_network_header_len(skb); | |
7201 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; | |
244e27ad | 7202 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
897ab156 AD |
7203 | |
7204 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, type_tucmd, | |
244e27ad | 7205 | mss_l4len_idx); |
897ab156 AD |
7206 | |
7207 | return 1; | |
7208 | } | |
7209 | ||
244e27ad AD |
7210 | static void ixgbe_tx_csum(struct ixgbe_ring *tx_ring, |
7211 | struct ixgbe_tx_buffer *first) | |
7ca647bd | 7212 | { |
fd0db0ed | 7213 | struct sk_buff *skb = first->skb; |
897ab156 AD |
7214 | u32 vlan_macip_lens = 0; |
7215 | u32 mss_l4len_idx = 0; | |
7216 | u32 type_tucmd = 0; | |
7ca647bd | 7217 | |
897ab156 | 7218 | if (skb->ip_summed != CHECKSUM_PARTIAL) { |
472148c3 AD |
7219 | if (!(first->tx_flags & IXGBE_TX_FLAGS_HW_VLAN) && |
7220 | !(first->tx_flags & IXGBE_TX_FLAGS_CC)) | |
7221 | return; | |
f467bc06 MR |
7222 | vlan_macip_lens = skb_network_offset(skb) << |
7223 | IXGBE_ADVTXD_MACLEN_SHIFT; | |
897ab156 AD |
7224 | } else { |
7225 | u8 l4_hdr = 0; | |
f467bc06 MR |
7226 | union { |
7227 | struct iphdr *ipv4; | |
7228 | struct ipv6hdr *ipv6; | |
7229 | u8 *raw; | |
7230 | } network_hdr; | |
7231 | union { | |
7232 | struct tcphdr *tcphdr; | |
7233 | u8 *raw; | |
7234 | } transport_hdr; | |
36a92d71 | 7235 | __be16 frag_off; |
f467bc06 MR |
7236 | |
7237 | if (skb->encapsulation) { | |
7238 | network_hdr.raw = skb_inner_network_header(skb); | |
7239 | transport_hdr.raw = skb_inner_transport_header(skb); | |
7240 | vlan_macip_lens = skb_inner_network_offset(skb) << | |
7241 | IXGBE_ADVTXD_MACLEN_SHIFT; | |
7242 | } else { | |
7243 | network_hdr.raw = skb_network_header(skb); | |
7244 | transport_hdr.raw = skb_transport_header(skb); | |
7245 | vlan_macip_lens = skb_network_offset(skb) << | |
7246 | IXGBE_ADVTXD_MACLEN_SHIFT; | |
7247 | } | |
7248 | ||
7249 | /* use first 4 bits to determine IP version */ | |
7250 | switch (network_hdr.ipv4->version) { | |
7251 | case IPVERSION: | |
7252 | vlan_macip_lens |= transport_hdr.raw - network_hdr.raw; | |
897ab156 | 7253 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; |
f467bc06 | 7254 | l4_hdr = network_hdr.ipv4->protocol; |
7ca647bd | 7255 | break; |
f467bc06 MR |
7256 | case 6: |
7257 | vlan_macip_lens |= transport_hdr.raw - network_hdr.raw; | |
7258 | l4_hdr = network_hdr.ipv6->nexthdr; | |
36a92d71 MR |
7259 | if (likely((transport_hdr.raw - network_hdr.raw) == |
7260 | sizeof(struct ipv6hdr))) | |
7261 | break; | |
7262 | ipv6_skip_exthdr(skb, network_hdr.raw - skb->data + | |
7263 | sizeof(struct ipv6hdr), | |
7264 | &l4_hdr, &frag_off); | |
7265 | if (unlikely(frag_off)) | |
7266 | l4_hdr = NEXTHDR_FRAGMENT; | |
897ab156 AD |
7267 | break; |
7268 | default: | |
36a92d71 | 7269 | break; |
7ca647bd | 7270 | } |
897ab156 AD |
7271 | |
7272 | switch (l4_hdr) { | |
7ca647bd | 7273 | case IPPROTO_TCP: |
897ab156 | 7274 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
f467bc06 | 7275 | mss_l4len_idx = (transport_hdr.tcphdr->doff * 4) << |
897ab156 | 7276 | IXGBE_ADVTXD_L4LEN_SHIFT; |
7ca647bd JP |
7277 | break; |
7278 | case IPPROTO_SCTP: | |
897ab156 AD |
7279 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
7280 | mss_l4len_idx = sizeof(struct sctphdr) << | |
7281 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
7282 | break; | |
7283 | case IPPROTO_UDP: | |
7284 | mss_l4len_idx = sizeof(struct udphdr) << | |
7285 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
7286 | break; | |
7287 | default: | |
7288 | if (unlikely(net_ratelimit())) { | |
7289 | dev_warn(tx_ring->dev, | |
36a92d71 MR |
7290 | "partial checksum, version=%d, l4 proto=%x\n", |
7291 | network_hdr.ipv4->version, l4_hdr); | |
897ab156 | 7292 | } |
36a92d71 MR |
7293 | skb_checksum_help(skb); |
7294 | goto no_csum; | |
7ca647bd | 7295 | } |
244e27ad AD |
7296 | |
7297 | /* update TX checksum flag */ | |
7298 | first->tx_flags |= IXGBE_TX_FLAGS_CSUM; | |
7ca647bd JP |
7299 | } |
7300 | ||
36a92d71 | 7301 | no_csum: |
244e27ad | 7302 | /* vlan_macip_lens: MACLEN, VLAN tag */ |
244e27ad | 7303 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
9a799d71 | 7304 | |
897ab156 AD |
7305 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, |
7306 | type_tucmd, mss_l4len_idx); | |
9a799d71 AK |
7307 | } |
7308 | ||
472148c3 AD |
7309 | #define IXGBE_SET_FLAG(_input, _flag, _result) \ |
7310 | ((_flag <= _result) ? \ | |
7311 | ((u32)(_input & _flag) * (_result / _flag)) : \ | |
7312 | ((u32)(_input & _flag) / (_flag / _result))) | |
7313 | ||
7314 | static u32 ixgbe_tx_cmd_type(struct sk_buff *skb, u32 tx_flags) | |
9a799d71 | 7315 | { |
d3d00239 | 7316 | /* set type for advanced descriptor with frame checksum insertion */ |
472148c3 AD |
7317 | u32 cmd_type = IXGBE_ADVTXD_DTYP_DATA | |
7318 | IXGBE_ADVTXD_DCMD_DEXT | | |
7319 | IXGBE_ADVTXD_DCMD_IFCS; | |
9a799d71 | 7320 | |
d3d00239 | 7321 | /* set HW vlan bit if vlan is present */ |
472148c3 AD |
7322 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_HW_VLAN, |
7323 | IXGBE_ADVTXD_DCMD_VLE); | |
3a6a4eda | 7324 | |
d3d00239 | 7325 | /* set segmentation enable bits for TSO/FSO */ |
472148c3 AD |
7326 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSO, |
7327 | IXGBE_ADVTXD_DCMD_TSE); | |
7328 | ||
7329 | /* set timestamp bit if present */ | |
7330 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSTAMP, | |
7331 | IXGBE_ADVTXD_MAC_TSTAMP); | |
eacd73f7 | 7332 | |
62748b7b | 7333 | /* insert frame checksum */ |
472148c3 | 7334 | cmd_type ^= IXGBE_SET_FLAG(skb->no_fcs, 1, IXGBE_ADVTXD_DCMD_IFCS); |
62748b7b | 7335 | |
d3d00239 AD |
7336 | return cmd_type; |
7337 | } | |
9a799d71 | 7338 | |
729739b7 AD |
7339 | static void ixgbe_tx_olinfo_status(union ixgbe_adv_tx_desc *tx_desc, |
7340 | u32 tx_flags, unsigned int paylen) | |
d3d00239 | 7341 | { |
472148c3 | 7342 | u32 olinfo_status = paylen << IXGBE_ADVTXD_PAYLEN_SHIFT; |
9a799d71 | 7343 | |
d3d00239 | 7344 | /* enable L4 checksum for TSO and TX checksum offload */ |
472148c3 AD |
7345 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
7346 | IXGBE_TX_FLAGS_CSUM, | |
7347 | IXGBE_ADVTXD_POPTS_TXSM); | |
9a799d71 | 7348 | |
93f5b3c1 | 7349 | /* enble IPv4 checksum for TSO */ |
472148c3 AD |
7350 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
7351 | IXGBE_TX_FLAGS_IPV4, | |
7352 | IXGBE_ADVTXD_POPTS_IXSM); | |
9a799d71 | 7353 | |
7f9643fd AD |
7354 | /* |
7355 | * Check Context must be set if Tx switch is enabled, which it | |
7356 | * always is for case where virtual functions are running | |
7357 | */ | |
472148c3 AD |
7358 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
7359 | IXGBE_TX_FLAGS_CC, | |
7360 | IXGBE_ADVTXD_CC); | |
7f9643fd | 7361 | |
472148c3 | 7362 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
d3d00239 | 7363 | } |
44df32c5 | 7364 | |
2367a173 DB |
7365 | static int __ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) |
7366 | { | |
7367 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
7368 | ||
7369 | /* Herbert's original patch had: | |
7370 | * smp_mb__after_netif_stop_queue(); | |
7371 | * but since that doesn't exist yet, just open code it. | |
7372 | */ | |
7373 | smp_mb(); | |
7374 | ||
7375 | /* We need to check again in a case another CPU has just | |
7376 | * made room available. | |
7377 | */ | |
7378 | if (likely(ixgbe_desc_unused(tx_ring) < size)) | |
7379 | return -EBUSY; | |
7380 | ||
7381 | /* A reprieve! - use start_queue because it doesn't call schedule */ | |
7382 | netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
7383 | ++tx_ring->tx_stats.restart_queue; | |
7384 | return 0; | |
7385 | } | |
7386 | ||
7387 | static inline int ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) | |
7388 | { | |
7389 | if (likely(ixgbe_desc_unused(tx_ring) >= size)) | |
7390 | return 0; | |
7391 | ||
7392 | return __ixgbe_maybe_stop_tx(tx_ring, size); | |
7393 | } | |
7394 | ||
d3d00239 AD |
7395 | #define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \ |
7396 | IXGBE_TXD_CMD_RS) | |
7397 | ||
7398 | static void ixgbe_tx_map(struct ixgbe_ring *tx_ring, | |
d3d00239 | 7399 | struct ixgbe_tx_buffer *first, |
d3d00239 AD |
7400 | const u8 hdr_len) |
7401 | { | |
fd0db0ed | 7402 | struct sk_buff *skb = first->skb; |
729739b7 | 7403 | struct ixgbe_tx_buffer *tx_buffer; |
d3d00239 | 7404 | union ixgbe_adv_tx_desc *tx_desc; |
ec718254 AD |
7405 | struct skb_frag_struct *frag; |
7406 | dma_addr_t dma; | |
7407 | unsigned int data_len, size; | |
244e27ad | 7408 | u32 tx_flags = first->tx_flags; |
472148c3 | 7409 | u32 cmd_type = ixgbe_tx_cmd_type(skb, tx_flags); |
d3d00239 | 7410 | u16 i = tx_ring->next_to_use; |
d3d00239 | 7411 | |
729739b7 AD |
7412 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
7413 | ||
ec718254 AD |
7414 | ixgbe_tx_olinfo_status(tx_desc, tx_flags, skb->len - hdr_len); |
7415 | ||
7416 | size = skb_headlen(skb); | |
7417 | data_len = skb->data_len; | |
729739b7 | 7418 | |
d3d00239 AD |
7419 | #ifdef IXGBE_FCOE |
7420 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { | |
729739b7 | 7421 | if (data_len < sizeof(struct fcoe_crc_eof)) { |
d3d00239 AD |
7422 | size -= sizeof(struct fcoe_crc_eof) - data_len; |
7423 | data_len = 0; | |
729739b7 AD |
7424 | } else { |
7425 | data_len -= sizeof(struct fcoe_crc_eof); | |
9a799d71 AK |
7426 | } |
7427 | } | |
44df32c5 | 7428 | |
d3d00239 | 7429 | #endif |
729739b7 | 7430 | dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE); |
8ad494b0 | 7431 | |
ec718254 | 7432 | tx_buffer = first; |
9a799d71 | 7433 | |
ec718254 AD |
7434 | for (frag = &skb_shinfo(skb)->frags[0];; frag++) { |
7435 | if (dma_mapping_error(tx_ring->dev, dma)) | |
7436 | goto dma_error; | |
7437 | ||
7438 | /* record length, and DMA address */ | |
7439 | dma_unmap_len_set(tx_buffer, len, size); | |
7440 | dma_unmap_addr_set(tx_buffer, dma, dma); | |
7441 | ||
7442 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
e5a43549 | 7443 | |
729739b7 | 7444 | while (unlikely(size > IXGBE_MAX_DATA_PER_TXD)) { |
d3d00239 | 7445 | tx_desc->read.cmd_type_len = |
472148c3 | 7446 | cpu_to_le32(cmd_type ^ IXGBE_MAX_DATA_PER_TXD); |
e5a43549 | 7447 | |
d3d00239 | 7448 | i++; |
729739b7 | 7449 | tx_desc++; |
d3d00239 | 7450 | if (i == tx_ring->count) { |
e4f74028 | 7451 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
d3d00239 AD |
7452 | i = 0; |
7453 | } | |
ec718254 | 7454 | tx_desc->read.olinfo_status = 0; |
729739b7 AD |
7455 | |
7456 | dma += IXGBE_MAX_DATA_PER_TXD; | |
7457 | size -= IXGBE_MAX_DATA_PER_TXD; | |
7458 | ||
7459 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
d3d00239 | 7460 | } |
e5a43549 | 7461 | |
729739b7 AD |
7462 | if (likely(!data_len)) |
7463 | break; | |
9a799d71 | 7464 | |
472148c3 | 7465 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size); |
9a799d71 | 7466 | |
729739b7 AD |
7467 | i++; |
7468 | tx_desc++; | |
7469 | if (i == tx_ring->count) { | |
7470 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
7471 | i = 0; | |
7472 | } | |
ec718254 | 7473 | tx_desc->read.olinfo_status = 0; |
9a799d71 | 7474 | |
d3d00239 | 7475 | #ifdef IXGBE_FCOE |
9e903e08 | 7476 | size = min_t(unsigned int, data_len, skb_frag_size(frag)); |
d3d00239 | 7477 | #else |
9e903e08 | 7478 | size = skb_frag_size(frag); |
d3d00239 AD |
7479 | #endif |
7480 | data_len -= size; | |
9a799d71 | 7481 | |
729739b7 AD |
7482 | dma = skb_frag_dma_map(tx_ring->dev, frag, 0, size, |
7483 | DMA_TO_DEVICE); | |
9a799d71 | 7484 | |
729739b7 | 7485 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
729739b7 | 7486 | } |
9a799d71 | 7487 | |
729739b7 | 7488 | /* write last descriptor with RS and EOP bits */ |
472148c3 AD |
7489 | cmd_type |= size | IXGBE_TXD_CMD; |
7490 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type); | |
eacd73f7 | 7491 | |
091a6246 | 7492 | netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); |
b2d96e0a | 7493 | |
d3d00239 AD |
7494 | /* set the timestamp */ |
7495 | first->time_stamp = jiffies; | |
9a799d71 AK |
7496 | |
7497 | /* | |
729739b7 AD |
7498 | * Force memory writes to complete before letting h/w know there |
7499 | * are new descriptors to fetch. (Only applicable for weak-ordered | |
7500 | * memory model archs, such as IA-64). | |
7501 | * | |
7502 | * We also need this memory barrier to make certain all of the | |
7503 | * status bits have been updated before next_to_watch is written. | |
9a799d71 AK |
7504 | */ |
7505 | wmb(); | |
7506 | ||
d3d00239 AD |
7507 | /* set next_to_watch value indicating a packet is present */ |
7508 | first->next_to_watch = tx_desc; | |
7509 | ||
729739b7 AD |
7510 | i++; |
7511 | if (i == tx_ring->count) | |
7512 | i = 0; | |
7513 | ||
7514 | tx_ring->next_to_use = i; | |
7515 | ||
2367a173 DB |
7516 | ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED); |
7517 | ||
7518 | if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) { | |
ad435ec6 AD |
7519 | writel(i, tx_ring->tail); |
7520 | ||
7521 | /* we need this if more than one processor can write to our tail | |
7522 | * at a time, it synchronizes IO on IA64/Altix systems | |
7523 | */ | |
7524 | mmiowb(); | |
9c938cdd | 7525 | } |
2367a173 | 7526 | |
d3d00239 AD |
7527 | return; |
7528 | dma_error: | |
729739b7 | 7529 | dev_err(tx_ring->dev, "TX DMA map failed\n"); |
d3d00239 AD |
7530 | |
7531 | /* clear dma mappings for failed tx_buffer_info map */ | |
7532 | for (;;) { | |
729739b7 AD |
7533 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
7534 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer); | |
7535 | if (tx_buffer == first) | |
d3d00239 AD |
7536 | break; |
7537 | if (i == 0) | |
7538 | i = tx_ring->count; | |
7539 | i--; | |
7540 | } | |
7541 | ||
d3d00239 | 7542 | tx_ring->next_to_use = i; |
9a799d71 AK |
7543 | } |
7544 | ||
fd0db0ed | 7545 | static void ixgbe_atr(struct ixgbe_ring *ring, |
244e27ad | 7546 | struct ixgbe_tx_buffer *first) |
69830529 AD |
7547 | { |
7548 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
7549 | union ixgbe_atr_hash_dword input = { .dword = 0 }; | |
7550 | union ixgbe_atr_hash_dword common = { .dword = 0 }; | |
7551 | union { | |
7552 | unsigned char *network; | |
7553 | struct iphdr *ipv4; | |
7554 | struct ipv6hdr *ipv6; | |
7555 | } hdr; | |
ee9e0f0b | 7556 | struct tcphdr *th; |
67359c3c MR |
7557 | struct sk_buff *skb; |
7558 | #ifdef CONFIG_IXGBE_VXLAN | |
7559 | u8 encap = false; | |
7560 | #endif /* CONFIG_IXGBE_VXLAN */ | |
905e4a41 | 7561 | __be16 vlan_id; |
c4cf55e5 | 7562 | |
69830529 AD |
7563 | /* if ring doesn't have a interrupt vector, cannot perform ATR */ |
7564 | if (!q_vector) | |
7565 | return; | |
7566 | ||
7567 | /* do nothing if sampling is disabled */ | |
7568 | if (!ring->atr_sample_rate) | |
d3ead241 | 7569 | return; |
c4cf55e5 | 7570 | |
69830529 | 7571 | ring->atr_count++; |
c4cf55e5 | 7572 | |
69830529 | 7573 | /* snag network header to get L4 type and address */ |
67359c3c MR |
7574 | skb = first->skb; |
7575 | hdr.network = skb_network_header(skb); | |
e19dcdeb MR |
7576 | if (!skb->encapsulation) { |
7577 | th = tcp_hdr(skb); | |
7578 | } else { | |
67359c3c MR |
7579 | #ifdef CONFIG_IXGBE_VXLAN |
7580 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
69830529 | 7581 | |
67359c3c MR |
7582 | if (!adapter->vxlan_port) |
7583 | return; | |
7584 | if (first->protocol != htons(ETH_P_IP) || | |
7585 | hdr.ipv4->version != IPVERSION || | |
7586 | hdr.ipv4->protocol != IPPROTO_UDP) { | |
7587 | return; | |
7588 | } | |
7589 | if (ntohs(udp_hdr(skb)->dest) != adapter->vxlan_port) | |
7590 | return; | |
7591 | encap = true; | |
7592 | hdr.network = skb_inner_network_header(skb); | |
7593 | th = inner_tcp_hdr(skb); | |
7594 | #else | |
69830529 | 7595 | return; |
67359c3c | 7596 | #endif /* CONFIG_IXGBE_VXLAN */ |
e19dcdeb MR |
7597 | } |
7598 | ||
7599 | /* Currently only IPv4/IPv6 with TCP is supported */ | |
7600 | switch (hdr.ipv4->version) { | |
7601 | case IPVERSION: | |
7602 | if (hdr.ipv4->protocol != IPPROTO_TCP) | |
67359c3c | 7603 | return; |
e19dcdeb MR |
7604 | break; |
7605 | case 6: | |
7606 | if (likely((unsigned char *)th - hdr.network == | |
7607 | sizeof(struct ipv6hdr))) { | |
7608 | if (hdr.ipv6->nexthdr != IPPROTO_TCP) | |
7609 | return; | |
7610 | } else { | |
7611 | __be16 frag_off; | |
7612 | u8 l4_hdr; | |
7613 | ||
7614 | ipv6_skip_exthdr(skb, hdr.network - skb->data + | |
7615 | sizeof(struct ipv6hdr), | |
7616 | &l4_hdr, &frag_off); | |
7617 | if (unlikely(frag_off)) | |
7618 | return; | |
7619 | if (l4_hdr != IPPROTO_TCP) | |
7620 | return; | |
7621 | } | |
7622 | break; | |
7623 | default: | |
7624 | return; | |
67359c3c | 7625 | } |
c4cf55e5 | 7626 | |
66f32a8b AD |
7627 | /* skip this packet since it is invalid or the socket is closing */ |
7628 | if (!th || th->fin) | |
69830529 AD |
7629 | return; |
7630 | ||
7631 | /* sample on all syn packets or once every atr sample count */ | |
7632 | if (!th->syn && (ring->atr_count < ring->atr_sample_rate)) | |
7633 | return; | |
7634 | ||
7635 | /* reset sample count */ | |
7636 | ring->atr_count = 0; | |
7637 | ||
244e27ad | 7638 | vlan_id = htons(first->tx_flags >> IXGBE_TX_FLAGS_VLAN_SHIFT); |
69830529 AD |
7639 | |
7640 | /* | |
7641 | * src and dst are inverted, think how the receiver sees them | |
7642 | * | |
7643 | * The input is broken into two sections, a non-compressed section | |
7644 | * containing vm_pool, vlan_id, and flow_type. The rest of the data | |
7645 | * is XORed together and stored in the compressed dword. | |
7646 | */ | |
7647 | input.formatted.vlan_id = vlan_id; | |
7648 | ||
7649 | /* | |
7650 | * since src port and flex bytes occupy the same word XOR them together | |
7651 | * and write the value to source port portion of compressed dword | |
7652 | */ | |
244e27ad | 7653 | if (first->tx_flags & (IXGBE_TX_FLAGS_SW_VLAN | IXGBE_TX_FLAGS_HW_VLAN)) |
a1108ffd | 7654 | common.port.src ^= th->dest ^ htons(ETH_P_8021Q); |
69830529 | 7655 | else |
244e27ad | 7656 | common.port.src ^= th->dest ^ first->protocol; |
69830529 AD |
7657 | common.port.dst ^= th->source; |
7658 | ||
e19dcdeb MR |
7659 | switch (hdr.ipv4->version) { |
7660 | case IPVERSION: | |
69830529 AD |
7661 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4; |
7662 | common.ip ^= hdr.ipv4->saddr ^ hdr.ipv4->daddr; | |
e19dcdeb MR |
7663 | break; |
7664 | case 6: | |
69830529 AD |
7665 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV6; |
7666 | common.ip ^= hdr.ipv6->saddr.s6_addr32[0] ^ | |
7667 | hdr.ipv6->saddr.s6_addr32[1] ^ | |
7668 | hdr.ipv6->saddr.s6_addr32[2] ^ | |
7669 | hdr.ipv6->saddr.s6_addr32[3] ^ | |
7670 | hdr.ipv6->daddr.s6_addr32[0] ^ | |
7671 | hdr.ipv6->daddr.s6_addr32[1] ^ | |
7672 | hdr.ipv6->daddr.s6_addr32[2] ^ | |
7673 | hdr.ipv6->daddr.s6_addr32[3]; | |
e19dcdeb MR |
7674 | break; |
7675 | default: | |
7676 | break; | |
69830529 | 7677 | } |
c4cf55e5 | 7678 | |
67359c3c MR |
7679 | #ifdef CONFIG_IXGBE_VXLAN |
7680 | if (encap) | |
7681 | input.formatted.flow_type |= IXGBE_ATR_L4TYPE_TUNNEL_MASK; | |
7682 | #endif /* CONFIG_IXGBE_VXLAN */ | |
7683 | ||
c4cf55e5 | 7684 | /* This assumes the Rx queue and Tx queue are bound to the same CPU */ |
69830529 AD |
7685 | ixgbe_fdir_add_signature_filter_82599(&q_vector->adapter->hw, |
7686 | input, common, ring->queue_index); | |
c4cf55e5 PWJ |
7687 | } |
7688 | ||
f663dd9a | 7689 | static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 7690 | void *accel_priv, select_queue_fallback_t fallback) |
09a3b1f8 | 7691 | { |
f663dd9a JW |
7692 | struct ixgbe_fwd_adapter *fwd_adapter = accel_priv; |
7693 | #ifdef IXGBE_FCOE | |
97488bd1 AD |
7694 | struct ixgbe_adapter *adapter; |
7695 | struct ixgbe_ring_feature *f; | |
7696 | int txq; | |
f663dd9a JW |
7697 | #endif |
7698 | ||
7699 | if (fwd_adapter) | |
7700 | return skb->queue_mapping + fwd_adapter->tx_base_queue; | |
7701 | ||
7702 | #ifdef IXGBE_FCOE | |
5e09a105 | 7703 | |
97488bd1 AD |
7704 | /* |
7705 | * only execute the code below if protocol is FCoE | |
7706 | * or FIP and we have FCoE enabled on the adapter | |
7707 | */ | |
7708 | switch (vlan_get_protocol(skb)) { | |
a1108ffd JP |
7709 | case htons(ETH_P_FCOE): |
7710 | case htons(ETH_P_FIP): | |
97488bd1 | 7711 | adapter = netdev_priv(dev); |
c087663e | 7712 | |
97488bd1 AD |
7713 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) |
7714 | break; | |
7715 | default: | |
99932d4f | 7716 | return fallback(dev, skb); |
97488bd1 | 7717 | } |
c087663e | 7718 | |
97488bd1 | 7719 | f = &adapter->ring_feature[RING_F_FCOE]; |
c087663e | 7720 | |
97488bd1 AD |
7721 | txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : |
7722 | smp_processor_id(); | |
56075a98 | 7723 | |
97488bd1 AD |
7724 | while (txq >= f->indices) |
7725 | txq -= f->indices; | |
c4cf55e5 | 7726 | |
97488bd1 | 7727 | return txq + f->offset; |
f663dd9a | 7728 | #else |
99932d4f | 7729 | return fallback(dev, skb); |
f663dd9a | 7730 | #endif |
09a3b1f8 SH |
7731 | } |
7732 | ||
fc77dc3c | 7733 | netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, |
84418e3b AD |
7734 | struct ixgbe_adapter *adapter, |
7735 | struct ixgbe_ring *tx_ring) | |
9a799d71 | 7736 | { |
d3d00239 | 7737 | struct ixgbe_tx_buffer *first; |
5f715823 | 7738 | int tso; |
d3d00239 | 7739 | u32 tx_flags = 0; |
a535c30e | 7740 | unsigned short f; |
a535c30e | 7741 | u16 count = TXD_USE_COUNT(skb_headlen(skb)); |
66f32a8b | 7742 | __be16 protocol = skb->protocol; |
63544e9c | 7743 | u8 hdr_len = 0; |
5e09a105 | 7744 | |
a535c30e AD |
7745 | /* |
7746 | * need: 1 descriptor per page * PAGE_SIZE/IXGBE_MAX_DATA_PER_TXD, | |
24ddd967 | 7747 | * + 1 desc for skb_headlen/IXGBE_MAX_DATA_PER_TXD, |
a535c30e AD |
7748 | * + 2 desc gap to keep tail from touching head, |
7749 | * + 1 desc for context descriptor, | |
7750 | * otherwise try next time | |
7751 | */ | |
a535c30e AD |
7752 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) |
7753 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); | |
7f66162b | 7754 | |
a535c30e AD |
7755 | if (ixgbe_maybe_stop_tx(tx_ring, count + 3)) { |
7756 | tx_ring->tx_stats.tx_busy++; | |
7757 | return NETDEV_TX_BUSY; | |
7758 | } | |
7759 | ||
fd0db0ed AD |
7760 | /* record the location of the first descriptor for this packet */ |
7761 | first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; | |
7762 | first->skb = skb; | |
091a6246 AD |
7763 | first->bytecount = skb->len; |
7764 | first->gso_segs = 1; | |
fd0db0ed | 7765 | |
66f32a8b | 7766 | /* if we have a HW VLAN tag being added default to the HW one */ |
df8a39de JP |
7767 | if (skb_vlan_tag_present(skb)) { |
7768 | tx_flags |= skb_vlan_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT; | |
66f32a8b AD |
7769 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; |
7770 | /* else if it is a SW VLAN check the next protocol and store the tag */ | |
a1108ffd | 7771 | } else if (protocol == htons(ETH_P_8021Q)) { |
66f32a8b AD |
7772 | struct vlan_hdr *vhdr, _vhdr; |
7773 | vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(_vhdr), &_vhdr); | |
7774 | if (!vhdr) | |
7775 | goto out_drop; | |
7776 | ||
9e0c5648 AD |
7777 | tx_flags |= ntohs(vhdr->h_vlan_TCI) << |
7778 | IXGBE_TX_FLAGS_VLAN_SHIFT; | |
66f32a8b AD |
7779 | tx_flags |= IXGBE_TX_FLAGS_SW_VLAN; |
7780 | } | |
0213668f | 7781 | protocol = vlan_get_protocol(skb); |
66f32a8b | 7782 | |
d5234933 MR |
7783 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && |
7784 | adapter->ptp_clock && | |
7785 | !test_and_set_bit_lock(__IXGBE_PTP_TX_IN_PROGRESS, | |
7786 | &adapter->state)) { | |
3a6a4eda JK |
7787 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; |
7788 | tx_flags |= IXGBE_TX_FLAGS_TSTAMP; | |
891dc082 JK |
7789 | |
7790 | /* schedule check for Tx timestamp */ | |
7791 | adapter->ptp_tx_skb = skb_get(skb); | |
7792 | adapter->ptp_tx_start = jiffies; | |
7793 | schedule_work(&adapter->ptp_tx_work); | |
3a6a4eda | 7794 | } |
3a6a4eda | 7795 | |
ff29a86e JK |
7796 | skb_tx_timestamp(skb); |
7797 | ||
9e0c5648 AD |
7798 | #ifdef CONFIG_PCI_IOV |
7799 | /* | |
7800 | * Use the l2switch_enable flag - would be false if the DMA | |
7801 | * Tx switch had been disabled. | |
7802 | */ | |
7803 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
472148c3 | 7804 | tx_flags |= IXGBE_TX_FLAGS_CC; |
9e0c5648 AD |
7805 | |
7806 | #endif | |
32701dc2 | 7807 | /* DCB maps skb priorities 0-7 onto 3 bit PCP of VLAN tag. */ |
66f32a8b | 7808 | if ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && |
09dca476 AD |
7809 | ((tx_flags & (IXGBE_TX_FLAGS_HW_VLAN | IXGBE_TX_FLAGS_SW_VLAN)) || |
7810 | (skb->priority != TC_PRIO_CONTROL))) { | |
66f32a8b | 7811 | tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK; |
32701dc2 JF |
7812 | tx_flags |= (skb->priority & 0x7) << |
7813 | IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT; | |
66f32a8b AD |
7814 | if (tx_flags & IXGBE_TX_FLAGS_SW_VLAN) { |
7815 | struct vlan_ethhdr *vhdr; | |
2049e1f6 FR |
7816 | |
7817 | if (skb_cow_head(skb, 0)) | |
66f32a8b AD |
7818 | goto out_drop; |
7819 | vhdr = (struct vlan_ethhdr *)skb->data; | |
7820 | vhdr->h_vlan_TCI = htons(tx_flags >> | |
7821 | IXGBE_TX_FLAGS_VLAN_SHIFT); | |
7822 | } else { | |
7823 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
2f90b865 | 7824 | } |
9a799d71 | 7825 | } |
eacd73f7 | 7826 | |
244e27ad AD |
7827 | /* record initial flags and protocol */ |
7828 | first->tx_flags = tx_flags; | |
7829 | first->protocol = protocol; | |
7830 | ||
eacd73f7 | 7831 | #ifdef IXGBE_FCOE |
66f32a8b | 7832 | /* setup tx offload for FCoE */ |
a1108ffd | 7833 | if ((protocol == htons(ETH_P_FCOE)) && |
a58915c7 | 7834 | (tx_ring->netdev->features & (NETIF_F_FSO | NETIF_F_FCOE_CRC))) { |
244e27ad | 7835 | tso = ixgbe_fso(tx_ring, first, &hdr_len); |
897ab156 AD |
7836 | if (tso < 0) |
7837 | goto out_drop; | |
9a799d71 | 7838 | |
66f32a8b | 7839 | goto xmit_fcoe; |
eacd73f7 | 7840 | } |
9a799d71 | 7841 | |
66f32a8b | 7842 | #endif /* IXGBE_FCOE */ |
244e27ad | 7843 | tso = ixgbe_tso(tx_ring, first, &hdr_len); |
66f32a8b | 7844 | if (tso < 0) |
897ab156 | 7845 | goto out_drop; |
244e27ad AD |
7846 | else if (!tso) |
7847 | ixgbe_tx_csum(tx_ring, first); | |
66f32a8b AD |
7848 | |
7849 | /* add the ATR filter if ATR is on */ | |
7850 | if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state)) | |
244e27ad | 7851 | ixgbe_atr(tx_ring, first); |
66f32a8b AD |
7852 | |
7853 | #ifdef IXGBE_FCOE | |
7854 | xmit_fcoe: | |
7855 | #endif /* IXGBE_FCOE */ | |
244e27ad | 7856 | ixgbe_tx_map(tx_ring, first, hdr_len); |
d3d00239 | 7857 | |
9a799d71 | 7858 | return NETDEV_TX_OK; |
897ab156 AD |
7859 | |
7860 | out_drop: | |
fd0db0ed AD |
7861 | dev_kfree_skb_any(first->skb); |
7862 | first->skb = NULL; | |
7863 | ||
897ab156 | 7864 | return NETDEV_TX_OK; |
9a799d71 AK |
7865 | } |
7866 | ||
2a47fa45 JF |
7867 | static netdev_tx_t __ixgbe_xmit_frame(struct sk_buff *skb, |
7868 | struct net_device *netdev, | |
7869 | struct ixgbe_ring *ring) | |
84418e3b AD |
7870 | { |
7871 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7872 | struct ixgbe_ring *tx_ring; | |
7873 | ||
a50c29dd AD |
7874 | /* |
7875 | * The minimum packet size for olinfo paylen is 17 so pad the skb | |
7876 | * in order to meet this minimum size requirement. | |
7877 | */ | |
a94d9e22 AD |
7878 | if (skb_put_padto(skb, 17)) |
7879 | return NETDEV_TX_OK; | |
a50c29dd | 7880 | |
2a47fa45 JF |
7881 | tx_ring = ring ? ring : adapter->tx_ring[skb->queue_mapping]; |
7882 | ||
fc77dc3c | 7883 | return ixgbe_xmit_frame_ring(skb, adapter, tx_ring); |
84418e3b AD |
7884 | } |
7885 | ||
2a47fa45 JF |
7886 | static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, |
7887 | struct net_device *netdev) | |
7888 | { | |
7889 | return __ixgbe_xmit_frame(skb, netdev, NULL); | |
7890 | } | |
7891 | ||
9a799d71 AK |
7892 | /** |
7893 | * ixgbe_set_mac - Change the Ethernet Address of the NIC | |
7894 | * @netdev: network interface device structure | |
7895 | * @p: pointer to an address structure | |
7896 | * | |
7897 | * Returns 0 on success, negative on failure | |
7898 | **/ | |
7899 | static int ixgbe_set_mac(struct net_device *netdev, void *p) | |
7900 | { | |
7901 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
b4617240 | 7902 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 AK |
7903 | struct sockaddr *addr = p; |
7904 | ||
7905 | if (!is_valid_ether_addr(addr->sa_data)) | |
7906 | return -EADDRNOTAVAIL; | |
7907 | ||
7908 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
b4617240 | 7909 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
9a799d71 | 7910 | |
c9f53e63 AD |
7911 | ixgbe_mac_set_default_filter(adapter); |
7912 | ||
7913 | return 0; | |
9a799d71 AK |
7914 | } |
7915 | ||
6b73e10d BH |
7916 | static int |
7917 | ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr) | |
7918 | { | |
7919 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7920 | struct ixgbe_hw *hw = &adapter->hw; | |
7921 | u16 value; | |
7922 | int rc; | |
7923 | ||
7924 | if (prtad != hw->phy.mdio.prtad) | |
7925 | return -EINVAL; | |
7926 | rc = hw->phy.ops.read_reg(hw, addr, devad, &value); | |
7927 | if (!rc) | |
7928 | rc = value; | |
7929 | return rc; | |
7930 | } | |
7931 | ||
7932 | static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad, | |
7933 | u16 addr, u16 value) | |
7934 | { | |
7935 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7936 | struct ixgbe_hw *hw = &adapter->hw; | |
7937 | ||
7938 | if (prtad != hw->phy.mdio.prtad) | |
7939 | return -EINVAL; | |
7940 | return hw->phy.ops.write_reg(hw, addr, devad, value); | |
7941 | } | |
7942 | ||
7943 | static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) | |
7944 | { | |
7945 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7946 | ||
3a6a4eda | 7947 | switch (cmd) { |
3a6a4eda | 7948 | case SIOCSHWTSTAMP: |
93501d48 JK |
7949 | return ixgbe_ptp_set_ts_config(adapter, req); |
7950 | case SIOCGHWTSTAMP: | |
7951 | return ixgbe_ptp_get_ts_config(adapter, req); | |
3a6a4eda JK |
7952 | default: |
7953 | return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd); | |
7954 | } | |
6b73e10d BH |
7955 | } |
7956 | ||
0365e6e4 PW |
7957 | /** |
7958 | * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding | |
31278e71 | 7959 | * netdev->dev_addrs |
0365e6e4 PW |
7960 | * @netdev: network interface device structure |
7961 | * | |
7962 | * Returns non-zero on failure | |
7963 | **/ | |
7964 | static int ixgbe_add_sanmac_netdev(struct net_device *dev) | |
7965 | { | |
7966 | int err = 0; | |
7967 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7fa7c9dc | 7968 | struct ixgbe_hw *hw = &adapter->hw; |
0365e6e4 | 7969 | |
7fa7c9dc | 7970 | if (is_valid_ether_addr(hw->mac.san_addr)) { |
0365e6e4 | 7971 | rtnl_lock(); |
7fa7c9dc | 7972 | err = dev_addr_add(dev, hw->mac.san_addr, NETDEV_HW_ADDR_T_SAN); |
0365e6e4 | 7973 | rtnl_unlock(); |
7fa7c9dc AD |
7974 | |
7975 | /* update SAN MAC vmdq pool selection */ | |
7976 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
0365e6e4 PW |
7977 | } |
7978 | return err; | |
7979 | } | |
7980 | ||
7981 | /** | |
7982 | * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding | |
31278e71 | 7983 | * netdev->dev_addrs |
0365e6e4 PW |
7984 | * @netdev: network interface device structure |
7985 | * | |
7986 | * Returns non-zero on failure | |
7987 | **/ | |
7988 | static int ixgbe_del_sanmac_netdev(struct net_device *dev) | |
7989 | { | |
7990 | int err = 0; | |
7991 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7992 | struct ixgbe_mac_info *mac = &adapter->hw.mac; | |
7993 | ||
7994 | if (is_valid_ether_addr(mac->san_addr)) { | |
7995 | rtnl_lock(); | |
7996 | err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); | |
7997 | rtnl_unlock(); | |
7998 | } | |
7999 | return err; | |
8000 | } | |
8001 | ||
9a799d71 AK |
8002 | #ifdef CONFIG_NET_POLL_CONTROLLER |
8003 | /* | |
8004 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
8005 | * without having to re-enable interrupts. It's not called while | |
8006 | * the interrupt routine is executing. | |
8007 | */ | |
8008 | static void ixgbe_netpoll(struct net_device *netdev) | |
8009 | { | |
8010 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8f9a7167 | 8011 | int i; |
9a799d71 | 8012 | |
1a647bd2 AD |
8013 | /* if interface is down do nothing */ |
8014 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
8015 | return; | |
8016 | ||
856f606e AD |
8017 | /* loop through and schedule all active queues */ |
8018 | for (i = 0; i < adapter->num_q_vectors; i++) | |
8019 | ixgbe_msix_clean_rings(0, adapter->q_vector[i]); | |
9a799d71 | 8020 | } |
9a799d71 | 8021 | |
581330ba | 8022 | #endif |
de1036b1 ED |
8023 | static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev, |
8024 | struct rtnl_link_stats64 *stats) | |
8025 | { | |
8026 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8027 | int i; | |
8028 | ||
1a51502b | 8029 | rcu_read_lock(); |
de1036b1 | 8030 | for (i = 0; i < adapter->num_rx_queues; i++) { |
1a51502b | 8031 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->rx_ring[i]); |
de1036b1 ED |
8032 | u64 bytes, packets; |
8033 | unsigned int start; | |
8034 | ||
1a51502b ED |
8035 | if (ring) { |
8036 | do { | |
57a7744e | 8037 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
1a51502b ED |
8038 | packets = ring->stats.packets; |
8039 | bytes = ring->stats.bytes; | |
57a7744e | 8040 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1a51502b ED |
8041 | stats->rx_packets += packets; |
8042 | stats->rx_bytes += bytes; | |
8043 | } | |
de1036b1 | 8044 | } |
1ac9ad13 ED |
8045 | |
8046 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
8047 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->tx_ring[i]); | |
8048 | u64 bytes, packets; | |
8049 | unsigned int start; | |
8050 | ||
8051 | if (ring) { | |
8052 | do { | |
57a7744e | 8053 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
1ac9ad13 ED |
8054 | packets = ring->stats.packets; |
8055 | bytes = ring->stats.bytes; | |
57a7744e | 8056 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1ac9ad13 ED |
8057 | stats->tx_packets += packets; |
8058 | stats->tx_bytes += bytes; | |
8059 | } | |
8060 | } | |
1a51502b | 8061 | rcu_read_unlock(); |
de1036b1 ED |
8062 | /* following stats updated by ixgbe_watchdog_task() */ |
8063 | stats->multicast = netdev->stats.multicast; | |
8064 | stats->rx_errors = netdev->stats.rx_errors; | |
8065 | stats->rx_length_errors = netdev->stats.rx_length_errors; | |
8066 | stats->rx_crc_errors = netdev->stats.rx_crc_errors; | |
8067 | stats->rx_missed_errors = netdev->stats.rx_missed_errors; | |
8068 | return stats; | |
8069 | } | |
8070 | ||
8af3c33f | 8071 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c BH |
8072 | /** |
8073 | * ixgbe_validate_rtr - verify 802.1Qp to Rx packet buffer mapping is valid. | |
8074 | * @adapter: pointer to ixgbe_adapter | |
8b1c0b24 JF |
8075 | * @tc: number of traffic classes currently enabled |
8076 | * | |
8077 | * Configure a valid 802.1Qp to Rx packet buffer mapping ie confirm | |
8078 | * 802.1Q priority maps to a packet buffer that exists. | |
8079 | */ | |
8080 | static void ixgbe_validate_rtr(struct ixgbe_adapter *adapter, u8 tc) | |
8081 | { | |
8082 | struct ixgbe_hw *hw = &adapter->hw; | |
8083 | u32 reg, rsave; | |
8084 | int i; | |
8085 | ||
8086 | /* 82598 have a static priority to TC mapping that can not | |
8087 | * be changed so no validation is needed. | |
8088 | */ | |
8089 | if (hw->mac.type == ixgbe_mac_82598EB) | |
8090 | return; | |
8091 | ||
8092 | reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC); | |
8093 | rsave = reg; | |
8094 | ||
8095 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { | |
8096 | u8 up2tc = reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT); | |
8097 | ||
8098 | /* If up2tc is out of bounds default to zero */ | |
8099 | if (up2tc > tc) | |
8100 | reg &= ~(0x7 << IXGBE_RTRUP2TC_UP_SHIFT); | |
8101 | } | |
8102 | ||
8103 | if (reg != rsave) | |
8104 | IXGBE_WRITE_REG(hw, IXGBE_RTRUP2TC, reg); | |
8105 | ||
8106 | return; | |
8107 | } | |
8108 | ||
02debdc9 AD |
8109 | /** |
8110 | * ixgbe_set_prio_tc_map - Configure netdev prio tc map | |
8111 | * @adapter: Pointer to adapter struct | |
8112 | * | |
8113 | * Populate the netdev user priority to tc map | |
8114 | */ | |
8115 | static void ixgbe_set_prio_tc_map(struct ixgbe_adapter *adapter) | |
8116 | { | |
8117 | struct net_device *dev = adapter->netdev; | |
8118 | struct ixgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg; | |
8119 | struct ieee_ets *ets = adapter->ixgbe_ieee_ets; | |
8120 | u8 prio; | |
8121 | ||
8122 | for (prio = 0; prio < MAX_USER_PRIORITY; prio++) { | |
8123 | u8 tc = 0; | |
8124 | ||
8125 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) | |
8126 | tc = ixgbe_dcb_get_tc_from_up(dcb_cfg, 0, prio); | |
8127 | else if (ets) | |
8128 | tc = ets->prio_tc[prio]; | |
8129 | ||
8130 | netdev_set_prio_tc_map(dev, prio, tc); | |
8131 | } | |
8132 | } | |
8133 | ||
cca73c59 | 8134 | #endif /* CONFIG_IXGBE_DCB */ |
49ce9c2c BH |
8135 | /** |
8136 | * ixgbe_setup_tc - configure net_device for multiple traffic classes | |
8b1c0b24 JF |
8137 | * |
8138 | * @netdev: net device to configure | |
8139 | * @tc: number of traffic classes to enable | |
8140 | */ | |
8141 | int ixgbe_setup_tc(struct net_device *dev, u8 tc) | |
8142 | { | |
8b1c0b24 JF |
8143 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
8144 | struct ixgbe_hw *hw = &adapter->hw; | |
2a47fa45 | 8145 | bool pools; |
8b1c0b24 | 8146 | |
8b1c0b24 | 8147 | /* Hardware supports up to 8 traffic classes */ |
7e3f5c88 ET |
8148 | if (tc > adapter->dcb_cfg.num_tcs.pg_tcs) |
8149 | return -EINVAL; | |
8150 | ||
8151 | if (hw->mac.type == ixgbe_mac_82598EB && tc && tc < MAX_TRAFFIC_CLASS) | |
8b1c0b24 JF |
8152 | return -EINVAL; |
8153 | ||
2a47fa45 JF |
8154 | pools = (find_first_zero_bit(&adapter->fwd_bitmask, 32) > 1); |
8155 | if (tc && pools && adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS) | |
8156 | return -EBUSY; | |
8157 | ||
8b1c0b24 | 8158 | /* Hardware has to reinitialize queues and interrupts to |
52f33af8 | 8159 | * match packet buffer alignment. Unfortunately, the |
8b1c0b24 JF |
8160 | * hardware is not flexible enough to do this dynamically. |
8161 | */ | |
8162 | if (netif_running(dev)) | |
8163 | ixgbe_close(dev); | |
bf4d67d9 AD |
8164 | else |
8165 | ixgbe_reset(adapter); | |
8166 | ||
8b1c0b24 JF |
8167 | ixgbe_clear_interrupt_scheme(adapter); |
8168 | ||
cca73c59 | 8169 | #ifdef CONFIG_IXGBE_DCB |
e7589eab | 8170 | if (tc) { |
8b1c0b24 | 8171 | netdev_set_num_tc(dev, tc); |
02debdc9 AD |
8172 | ixgbe_set_prio_tc_map(adapter); |
8173 | ||
e7589eab | 8174 | adapter->flags |= IXGBE_FLAG_DCB_ENABLED; |
e7589eab | 8175 | |
943561d3 AD |
8176 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
8177 | adapter->last_lfc_mode = adapter->hw.fc.requested_mode; | |
e7589eab | 8178 | adapter->hw.fc.requested_mode = ixgbe_fc_none; |
943561d3 | 8179 | } |
e7589eab | 8180 | } else { |
8b1c0b24 | 8181 | netdev_reset_tc(dev); |
02debdc9 | 8182 | |
943561d3 AD |
8183 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
8184 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; | |
e7589eab JF |
8185 | |
8186 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; | |
e7589eab JF |
8187 | |
8188 | adapter->temp_dcb_cfg.pfc_mode_enable = false; | |
8189 | adapter->dcb_cfg.pfc_mode_enable = false; | |
8190 | } | |
8191 | ||
8b1c0b24 | 8192 | ixgbe_validate_rtr(adapter, tc); |
cca73c59 AD |
8193 | |
8194 | #endif /* CONFIG_IXGBE_DCB */ | |
8195 | ixgbe_init_interrupt_scheme(adapter); | |
8196 | ||
8b1c0b24 | 8197 | if (netif_running(dev)) |
cca73c59 | 8198 | return ixgbe_open(dev); |
8b1c0b24 JF |
8199 | |
8200 | return 0; | |
8201 | } | |
de1036b1 | 8202 | |
da36b647 GR |
8203 | #ifdef CONFIG_PCI_IOV |
8204 | void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter) | |
8205 | { | |
8206 | struct net_device *netdev = adapter->netdev; | |
8207 | ||
8208 | rtnl_lock(); | |
da36b647 | 8209 | ixgbe_setup_tc(netdev, netdev_get_num_tc(netdev)); |
da36b647 GR |
8210 | rtnl_unlock(); |
8211 | } | |
8212 | ||
8213 | #endif | |
082757af DS |
8214 | void ixgbe_do_reset(struct net_device *netdev) |
8215 | { | |
8216 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8217 | ||
8218 | if (netif_running(netdev)) | |
8219 | ixgbe_reinit_locked(adapter); | |
8220 | else | |
8221 | ixgbe_reset(adapter); | |
8222 | } | |
8223 | ||
c8f44aff | 8224 | static netdev_features_t ixgbe_fix_features(struct net_device *netdev, |
567d2de2 | 8225 | netdev_features_t features) |
082757af DS |
8226 | { |
8227 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8228 | ||
082757af | 8229 | /* If Rx checksum is disabled, then RSC/LRO should also be disabled */ |
567d2de2 AD |
8230 | if (!(features & NETIF_F_RXCSUM)) |
8231 | features &= ~NETIF_F_LRO; | |
082757af | 8232 | |
567d2de2 AD |
8233 | /* Turn off LRO if not RSC capable */ |
8234 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)) | |
8235 | features &= ~NETIF_F_LRO; | |
8e2813f5 | 8236 | |
567d2de2 | 8237 | return features; |
082757af DS |
8238 | } |
8239 | ||
c8f44aff | 8240 | static int ixgbe_set_features(struct net_device *netdev, |
567d2de2 | 8241 | netdev_features_t features) |
082757af DS |
8242 | { |
8243 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
567d2de2 | 8244 | netdev_features_t changed = netdev->features ^ features; |
082757af DS |
8245 | bool need_reset = false; |
8246 | ||
082757af | 8247 | /* Make sure RSC matches LRO, reset if change */ |
567d2de2 AD |
8248 | if (!(features & NETIF_F_LRO)) { |
8249 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) | |
082757af | 8250 | need_reset = true; |
567d2de2 AD |
8251 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED; |
8252 | } else if ((adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) && | |
8253 | !(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) { | |
8254 | if (adapter->rx_itr_setting == 1 || | |
8255 | adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR) { | |
8256 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
8257 | need_reset = true; | |
8258 | } else if ((changed ^ features) & NETIF_F_LRO) { | |
8259 | e_info(probe, "rx-usecs set too low, " | |
8260 | "disabling RSC\n"); | |
082757af DS |
8261 | } |
8262 | } | |
8263 | ||
8264 | /* | |
8265 | * Check if Flow Director n-tuple support was enabled or disabled. If | |
8266 | * the state changed, we need to reset. | |
8267 | */ | |
39cb681b AD |
8268 | switch (features & NETIF_F_NTUPLE) { |
8269 | case NETIF_F_NTUPLE: | |
567d2de2 | 8270 | /* turn off ATR, enable perfect filters and reset */ |
39cb681b AD |
8271 | if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) |
8272 | need_reset = true; | |
8273 | ||
567d2de2 AD |
8274 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
8275 | adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
39cb681b AD |
8276 | break; |
8277 | default: | |
8278 | /* turn off perfect filters, enable ATR and reset */ | |
8279 | if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
8280 | need_reset = true; | |
8281 | ||
8282 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
8283 | ||
8284 | /* We cannot enable ATR if SR-IOV is enabled */ | |
8285 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
8286 | break; | |
8287 | ||
8288 | /* We cannot enable ATR if we have 2 or more traffic classes */ | |
8289 | if (netdev_get_num_tc(netdev) > 1) | |
8290 | break; | |
8291 | ||
8292 | /* We cannot enable ATR if RSS is disabled */ | |
8293 | if (adapter->ring_feature[RING_F_RSS].limit <= 1) | |
8294 | break; | |
8295 | ||
8296 | /* A sample rate of 0 indicates ATR disabled */ | |
8297 | if (!adapter->atr_sample_rate) | |
8298 | break; | |
8299 | ||
8300 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
8301 | break; | |
082757af DS |
8302 | } |
8303 | ||
f646968f | 8304 | if (features & NETIF_F_HW_VLAN_CTAG_RX) |
146d4cc9 JF |
8305 | ixgbe_vlan_strip_enable(adapter); |
8306 | else | |
8307 | ixgbe_vlan_strip_disable(adapter); | |
8308 | ||
3f2d1c0f BG |
8309 | if (changed & NETIF_F_RXALL) |
8310 | need_reset = true; | |
8311 | ||
567d2de2 | 8312 | netdev->features = features; |
67359c3c MR |
8313 | |
8314 | #ifdef CONFIG_IXGBE_VXLAN | |
8315 | if ((adapter->flags & IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) { | |
8316 | if (features & NETIF_F_RXCSUM) | |
8317 | adapter->flags2 |= IXGBE_FLAG2_VXLAN_REREG_NEEDED; | |
8318 | else | |
8319 | ixgbe_clear_vxlan_port(adapter); | |
8320 | } | |
8321 | #endif /* CONFIG_IXGBE_VXLAN */ | |
8322 | ||
082757af DS |
8323 | if (need_reset) |
8324 | ixgbe_do_reset(netdev); | |
8325 | ||
8326 | return 0; | |
082757af DS |
8327 | } |
8328 | ||
67359c3c | 8329 | #ifdef CONFIG_IXGBE_VXLAN |
3f207800 DS |
8330 | /** |
8331 | * ixgbe_add_vxlan_port - Get notifications about VXLAN ports that come up | |
8332 | * @dev: The port's netdev | |
8333 | * @sa_family: Socket Family that VXLAN is notifiying us about | |
8334 | * @port: New UDP port number that VXLAN started listening to | |
8335 | **/ | |
8336 | static void ixgbe_add_vxlan_port(struct net_device *dev, sa_family_t sa_family, | |
8337 | __be16 port) | |
8338 | { | |
8339 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
8340 | struct ixgbe_hw *hw = &adapter->hw; | |
8341 | u16 new_port = ntohs(port); | |
8342 | ||
67359c3c MR |
8343 | if (!(adapter->flags & IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) |
8344 | return; | |
8345 | ||
3f207800 DS |
8346 | if (sa_family == AF_INET6) |
8347 | return; | |
8348 | ||
67359c3c | 8349 | if (adapter->vxlan_port == new_port) |
3f207800 | 8350 | return; |
3f207800 DS |
8351 | |
8352 | if (adapter->vxlan_port) { | |
8353 | netdev_info(dev, | |
67359c3c | 8354 | "Hit Max num of VXLAN ports, not adding port %d\n", |
3f207800 DS |
8355 | new_port); |
8356 | return; | |
8357 | } | |
8358 | ||
8359 | adapter->vxlan_port = new_port; | |
8360 | IXGBE_WRITE_REG(hw, IXGBE_VXLANCTRL, new_port); | |
8361 | } | |
8362 | ||
8363 | /** | |
8364 | * ixgbe_del_vxlan_port - Get notifications about VXLAN ports that go away | |
8365 | * @dev: The port's netdev | |
8366 | * @sa_family: Socket Family that VXLAN is notifying us about | |
8367 | * @port: UDP port number that VXLAN stopped listening to | |
8368 | **/ | |
8369 | static void ixgbe_del_vxlan_port(struct net_device *dev, sa_family_t sa_family, | |
8370 | __be16 port) | |
8371 | { | |
8372 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
3f207800 DS |
8373 | u16 new_port = ntohs(port); |
8374 | ||
67359c3c MR |
8375 | if (!(adapter->flags & IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) |
8376 | return; | |
8377 | ||
3f207800 DS |
8378 | if (sa_family == AF_INET6) |
8379 | return; | |
8380 | ||
8381 | if (adapter->vxlan_port != new_port) { | |
8382 | netdev_info(dev, "Port %d was not found, not deleting\n", | |
8383 | new_port); | |
8384 | return; | |
8385 | } | |
8386 | ||
67359c3c MR |
8387 | ixgbe_clear_vxlan_port(adapter); |
8388 | adapter->flags2 |= IXGBE_FLAG2_VXLAN_REREG_NEEDED; | |
3f207800 | 8389 | } |
67359c3c | 8390 | #endif /* CONFIG_IXGBE_VXLAN */ |
3f207800 | 8391 | |
edc7d573 | 8392 | static int ixgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
0f4b0add | 8393 | struct net_device *dev, |
f6f6424b | 8394 | const unsigned char *addr, u16 vid, |
0f4b0add JF |
8395 | u16 flags) |
8396 | { | |
bcfd3432 | 8397 | /* guarantee we can provide a unique filter for the unicast address */ |
46acc460 | 8398 | if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) { |
2f9be166 AD |
8399 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
8400 | u16 pool = VMDQ_P(0); | |
8401 | ||
8402 | if (netdev_uc_count(dev) >= ixgbe_available_rars(adapter, pool)) | |
bcfd3432 | 8403 | return -ENOMEM; |
0f4b0add JF |
8404 | } |
8405 | ||
f6f6424b | 8406 | return ndo_dflt_fdb_add(ndm, tb, dev, addr, vid, flags); |
0f4b0add JF |
8407 | } |
8408 | ||
219efe97 DS |
8409 | /** |
8410 | * ixgbe_configure_bridge_mode - set various bridge modes | |
8411 | * @adapter - the private structure | |
8412 | * @mode - requested bridge mode | |
8413 | * | |
8414 | * Configure some settings require for various bridge modes. | |
8415 | **/ | |
8416 | static int ixgbe_configure_bridge_mode(struct ixgbe_adapter *adapter, | |
8417 | __u16 mode) | |
8418 | { | |
6d4c96ad DS |
8419 | struct ixgbe_hw *hw = &adapter->hw; |
8420 | unsigned int p, num_pools; | |
8421 | u32 vmdctl; | |
8422 | ||
219efe97 DS |
8423 | switch (mode) { |
8424 | case BRIDGE_MODE_VEPA: | |
6d4c96ad | 8425 | /* disable Tx loopback, rely on switch hairpin mode */ |
219efe97 | 8426 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_PFDTXGSWC, 0); |
6d4c96ad DS |
8427 | |
8428 | /* must enable Rx switching replication to allow multicast | |
8429 | * packet reception on all VFs, and to enable source address | |
8430 | * pruning. | |
8431 | */ | |
8432 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VMD_CTL); | |
8433 | vmdctl |= IXGBE_VT_CTL_REPLEN; | |
8434 | IXGBE_WRITE_REG(hw, IXGBE_VMD_CTL, vmdctl); | |
8435 | ||
8436 | /* enable Rx source address pruning. Note, this requires | |
8437 | * replication to be enabled or else it does nothing. | |
8438 | */ | |
8439 | num_pools = adapter->num_vfs + adapter->num_rx_pools; | |
8440 | for (p = 0; p < num_pools; p++) { | |
8441 | if (hw->mac.ops.set_source_address_pruning) | |
8442 | hw->mac.ops.set_source_address_pruning(hw, | |
8443 | true, | |
8444 | p); | |
8445 | } | |
219efe97 DS |
8446 | break; |
8447 | case BRIDGE_MODE_VEB: | |
6d4c96ad | 8448 | /* enable Tx loopback for internal VF/PF communication */ |
219efe97 DS |
8449 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_PFDTXGSWC, |
8450 | IXGBE_PFDTXGSWC_VT_LBEN); | |
6d4c96ad DS |
8451 | |
8452 | /* disable Rx switching replication unless we have SR-IOV | |
8453 | * virtual functions | |
8454 | */ | |
8455 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VMD_CTL); | |
8456 | if (!adapter->num_vfs) | |
8457 | vmdctl &= ~IXGBE_VT_CTL_REPLEN; | |
8458 | IXGBE_WRITE_REG(hw, IXGBE_VMD_CTL, vmdctl); | |
8459 | ||
8460 | /* disable Rx source address pruning, since we don't expect to | |
8461 | * be receiving external loopback of our transmitted frames. | |
8462 | */ | |
8463 | num_pools = adapter->num_vfs + adapter->num_rx_pools; | |
8464 | for (p = 0; p < num_pools; p++) { | |
8465 | if (hw->mac.ops.set_source_address_pruning) | |
8466 | hw->mac.ops.set_source_address_pruning(hw, | |
8467 | false, | |
8468 | p); | |
8469 | } | |
219efe97 DS |
8470 | break; |
8471 | default: | |
8472 | return -EINVAL; | |
8473 | } | |
8474 | ||
8475 | adapter->bridge_mode = mode; | |
8476 | ||
8477 | e_info(drv, "enabling bridge mode: %s\n", | |
8478 | mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); | |
8479 | ||
8480 | return 0; | |
8481 | } | |
8482 | ||
815cccbf | 8483 | static int ixgbe_ndo_bridge_setlink(struct net_device *dev, |
add511b3 | 8484 | struct nlmsghdr *nlh, u16 flags) |
815cccbf JF |
8485 | { |
8486 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
8487 | struct nlattr *attr, *br_spec; | |
8488 | int rem; | |
8489 | ||
8490 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
8491 | return -EOPNOTSUPP; | |
8492 | ||
8493 | br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); | |
4ea85e83 TG |
8494 | if (!br_spec) |
8495 | return -EINVAL; | |
815cccbf JF |
8496 | |
8497 | nla_for_each_nested(attr, br_spec, rem) { | |
a1e869de | 8498 | int status; |
815cccbf | 8499 | __u16 mode; |
815cccbf JF |
8500 | |
8501 | if (nla_type(attr) != IFLA_BRIDGE_MODE) | |
8502 | continue; | |
8503 | ||
b7c1a314 TG |
8504 | if (nla_len(attr) < sizeof(mode)) |
8505 | return -EINVAL; | |
8506 | ||
815cccbf | 8507 | mode = nla_get_u16(attr); |
219efe97 DS |
8508 | status = ixgbe_configure_bridge_mode(adapter, mode); |
8509 | if (status) | |
8510 | return status; | |
aa2bacb6 DS |
8511 | |
8512 | break; | |
815cccbf JF |
8513 | } |
8514 | ||
8515 | return 0; | |
8516 | } | |
8517 | ||
8518 | static int ixgbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, | |
6cbdceeb | 8519 | struct net_device *dev, |
46c264da | 8520 | u32 filter_mask, int nlflags) |
815cccbf JF |
8521 | { |
8522 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
815cccbf JF |
8523 | |
8524 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
8525 | return 0; | |
8526 | ||
aa2bacb6 | 8527 | return ndo_dflt_bridge_getlink(skb, pid, seq, dev, |
7d4f8d87 SF |
8528 | adapter->bridge_mode, 0, 0, nlflags, |
8529 | filter_mask, NULL); | |
815cccbf JF |
8530 | } |
8531 | ||
2a47fa45 JF |
8532 | static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev) |
8533 | { | |
8534 | struct ixgbe_fwd_adapter *fwd_adapter = NULL; | |
8535 | struct ixgbe_adapter *adapter = netdev_priv(pdev); | |
aac2f1bf | 8536 | int used_pools = adapter->num_vfs + adapter->num_rx_pools; |
51f3773b | 8537 | unsigned int limit; |
2a47fa45 JF |
8538 | int pool, err; |
8539 | ||
aac2f1bf JK |
8540 | /* Hardware has a limited number of available pools. Each VF, and the |
8541 | * PF require a pool. Check to ensure we don't attempt to use more | |
8542 | * then the available number of pools. | |
8543 | */ | |
8544 | if (used_pools >= IXGBE_MAX_VF_FUNCTIONS) | |
8545 | return ERR_PTR(-EINVAL); | |
8546 | ||
219354d4 JF |
8547 | #ifdef CONFIG_RPS |
8548 | if (vdev->num_rx_queues != vdev->num_tx_queues) { | |
8549 | netdev_info(pdev, "%s: Only supports a single queue count for TX and RX\n", | |
8550 | vdev->name); | |
8551 | return ERR_PTR(-EINVAL); | |
8552 | } | |
8553 | #endif | |
2a47fa45 | 8554 | /* Check for hardware restriction on number of rx/tx queues */ |
219354d4 | 8555 | if (vdev->num_tx_queues > IXGBE_MAX_L2A_QUEUES || |
2a47fa45 JF |
8556 | vdev->num_tx_queues == IXGBE_BAD_L2A_QUEUE) { |
8557 | netdev_info(pdev, | |
8558 | "%s: Supports RX/TX Queue counts 1,2, and 4\n", | |
8559 | pdev->name); | |
8560 | return ERR_PTR(-EINVAL); | |
8561 | } | |
8562 | ||
8563 | if (((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && | |
8564 | adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS - 1) || | |
8565 | (adapter->num_rx_pools > IXGBE_MAX_MACVLANS)) | |
8566 | return ERR_PTR(-EBUSY); | |
8567 | ||
bc52f951 | 8568 | fwd_adapter = kzalloc(sizeof(*fwd_adapter), GFP_KERNEL); |
2a47fa45 JF |
8569 | if (!fwd_adapter) |
8570 | return ERR_PTR(-ENOMEM); | |
8571 | ||
8572 | pool = find_first_zero_bit(&adapter->fwd_bitmask, 32); | |
8573 | adapter->num_rx_pools++; | |
8574 | set_bit(pool, &adapter->fwd_bitmask); | |
51f3773b | 8575 | limit = find_last_bit(&adapter->fwd_bitmask, 32); |
2a47fa45 JF |
8576 | |
8577 | /* Enable VMDq flag so device will be set in VM mode */ | |
8578 | adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED | IXGBE_FLAG_SRIOV_ENABLED; | |
51f3773b | 8579 | adapter->ring_feature[RING_F_VMDQ].limit = limit + 1; |
219354d4 | 8580 | adapter->ring_feature[RING_F_RSS].limit = vdev->num_tx_queues; |
2a47fa45 JF |
8581 | |
8582 | /* Force reinit of ring allocation with VMDQ enabled */ | |
8583 | err = ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev)); | |
8584 | if (err) | |
8585 | goto fwd_add_err; | |
8586 | fwd_adapter->pool = pool; | |
8587 | fwd_adapter->real_adapter = adapter; | |
8588 | err = ixgbe_fwd_ring_up(vdev, fwd_adapter); | |
8589 | if (err) | |
8590 | goto fwd_add_err; | |
8591 | netif_tx_start_all_queues(vdev); | |
8592 | return fwd_adapter; | |
8593 | fwd_add_err: | |
8594 | /* unwind counter and free adapter struct */ | |
8595 | netdev_info(pdev, | |
8596 | "%s: dfwd hardware acceleration failed\n", vdev->name); | |
8597 | clear_bit(pool, &adapter->fwd_bitmask); | |
8598 | adapter->num_rx_pools--; | |
8599 | kfree(fwd_adapter); | |
8600 | return ERR_PTR(err); | |
8601 | } | |
8602 | ||
8603 | static void ixgbe_fwd_del(struct net_device *pdev, void *priv) | |
8604 | { | |
8605 | struct ixgbe_fwd_adapter *fwd_adapter = priv; | |
8606 | struct ixgbe_adapter *adapter = fwd_adapter->real_adapter; | |
51f3773b | 8607 | unsigned int limit; |
2a47fa45 JF |
8608 | |
8609 | clear_bit(fwd_adapter->pool, &adapter->fwd_bitmask); | |
8610 | adapter->num_rx_pools--; | |
8611 | ||
51f3773b JF |
8612 | limit = find_last_bit(&adapter->fwd_bitmask, 32); |
8613 | adapter->ring_feature[RING_F_VMDQ].limit = limit + 1; | |
2a47fa45 JF |
8614 | ixgbe_fwd_ring_down(fwd_adapter->netdev, fwd_adapter); |
8615 | ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev)); | |
8616 | netdev_dbg(pdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n", | |
8617 | fwd_adapter->pool, adapter->num_rx_pools, | |
8618 | fwd_adapter->rx_base_queue, | |
8619 | fwd_adapter->rx_base_queue + adapter->num_rx_queues_per_pool, | |
8620 | adapter->fwd_bitmask); | |
8621 | kfree(fwd_adapter); | |
8622 | } | |
8623 | ||
f467bc06 MR |
8624 | #define IXGBE_MAX_TUNNEL_HDR_LEN 80 |
8625 | static netdev_features_t | |
8626 | ixgbe_features_check(struct sk_buff *skb, struct net_device *dev, | |
8627 | netdev_features_t features) | |
8628 | { | |
8629 | if (!skb->encapsulation) | |
8630 | return features; | |
8631 | ||
8632 | if (unlikely(skb_inner_mac_header(skb) - skb_transport_header(skb) > | |
8633 | IXGBE_MAX_TUNNEL_HDR_LEN)) | |
a188222b | 8634 | return features & ~NETIF_F_CSUM_MASK; |
f467bc06 MR |
8635 | |
8636 | return features; | |
8637 | } | |
8638 | ||
0edc3527 | 8639 | static const struct net_device_ops ixgbe_netdev_ops = { |
e8e9f696 | 8640 | .ndo_open = ixgbe_open, |
0edc3527 | 8641 | .ndo_stop = ixgbe_close, |
00829823 | 8642 | .ndo_start_xmit = ixgbe_xmit_frame, |
09a3b1f8 | 8643 | .ndo_select_queue = ixgbe_select_queue, |
581330ba | 8644 | .ndo_set_rx_mode = ixgbe_set_rx_mode, |
0edc3527 SH |
8645 | .ndo_validate_addr = eth_validate_addr, |
8646 | .ndo_set_mac_address = ixgbe_set_mac, | |
8647 | .ndo_change_mtu = ixgbe_change_mtu, | |
8648 | .ndo_tx_timeout = ixgbe_tx_timeout, | |
0edc3527 SH |
8649 | .ndo_vlan_rx_add_vid = ixgbe_vlan_rx_add_vid, |
8650 | .ndo_vlan_rx_kill_vid = ixgbe_vlan_rx_kill_vid, | |
6b73e10d | 8651 | .ndo_do_ioctl = ixgbe_ioctl, |
7f01648a GR |
8652 | .ndo_set_vf_mac = ixgbe_ndo_set_vf_mac, |
8653 | .ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan, | |
ed616689 | 8654 | .ndo_set_vf_rate = ixgbe_ndo_set_vf_bw, |
581330ba | 8655 | .ndo_set_vf_spoofchk = ixgbe_ndo_set_vf_spoofchk, |
e65ce0d3 | 8656 | .ndo_set_vf_rss_query_en = ixgbe_ndo_set_vf_rss_query_en, |
54011e4d | 8657 | .ndo_set_vf_trust = ixgbe_ndo_set_vf_trust, |
7f01648a | 8658 | .ndo_get_vf_config = ixgbe_ndo_get_vf_config, |
de1036b1 | 8659 | .ndo_get_stats64 = ixgbe_get_stats64, |
8af3c33f | 8660 | #ifdef CONFIG_IXGBE_DCB |
24095aa3 | 8661 | .ndo_setup_tc = ixgbe_setup_tc, |
8af3c33f | 8662 | #endif |
0edc3527 SH |
8663 | #ifdef CONFIG_NET_POLL_CONTROLLER |
8664 | .ndo_poll_controller = ixgbe_netpoll, | |
8665 | #endif | |
e0d1095a | 8666 | #ifdef CONFIG_NET_RX_BUSY_POLL |
8b80cda5 | 8667 | .ndo_busy_poll = ixgbe_low_latency_recv, |
5a85e737 | 8668 | #endif |
332d4a7d YZ |
8669 | #ifdef IXGBE_FCOE |
8670 | .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, | |
68a683cf | 8671 | .ndo_fcoe_ddp_target = ixgbe_fcoe_ddp_target, |
332d4a7d | 8672 | .ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put, |
8450ff8c YZ |
8673 | .ndo_fcoe_enable = ixgbe_fcoe_enable, |
8674 | .ndo_fcoe_disable = ixgbe_fcoe_disable, | |
61a1fa10 | 8675 | .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn, |
ea81875a | 8676 | .ndo_fcoe_get_hbainfo = ixgbe_fcoe_get_hbainfo, |
332d4a7d | 8677 | #endif /* IXGBE_FCOE */ |
082757af DS |
8678 | .ndo_set_features = ixgbe_set_features, |
8679 | .ndo_fix_features = ixgbe_fix_features, | |
0f4b0add | 8680 | .ndo_fdb_add = ixgbe_ndo_fdb_add, |
815cccbf JF |
8681 | .ndo_bridge_setlink = ixgbe_ndo_bridge_setlink, |
8682 | .ndo_bridge_getlink = ixgbe_ndo_bridge_getlink, | |
2a47fa45 JF |
8683 | .ndo_dfwd_add_station = ixgbe_fwd_add, |
8684 | .ndo_dfwd_del_station = ixgbe_fwd_del, | |
67359c3c | 8685 | #ifdef CONFIG_IXGBE_VXLAN |
3f207800 DS |
8686 | .ndo_add_vxlan_port = ixgbe_add_vxlan_port, |
8687 | .ndo_del_vxlan_port = ixgbe_del_vxlan_port, | |
67359c3c | 8688 | #endif /* CONFIG_IXGBE_VXLAN */ |
f467bc06 | 8689 | .ndo_features_check = ixgbe_features_check, |
0edc3527 SH |
8690 | }; |
8691 | ||
e027d1ae JK |
8692 | /** |
8693 | * ixgbe_enumerate_functions - Get the number of ports this device has | |
8694 | * @adapter: adapter structure | |
8695 | * | |
8696 | * This function enumerates the phsyical functions co-located on a single slot, | |
8697 | * in order to determine how many ports a device has. This is most useful in | |
8698 | * determining the required GT/s of PCIe bandwidth necessary for optimal | |
8699 | * performance. | |
8700 | **/ | |
8701 | static inline int ixgbe_enumerate_functions(struct ixgbe_adapter *adapter) | |
8702 | { | |
caafb95d | 8703 | struct pci_dev *entry, *pdev = adapter->pdev; |
e027d1ae JK |
8704 | int physfns = 0; |
8705 | ||
f1f96579 JK |
8706 | /* Some cards can not use the generic count PCIe functions method, |
8707 | * because they are behind a parent switch, so we hardcode these with | |
8708 | * the correct number of functions. | |
e027d1ae | 8709 | */ |
8818970d | 8710 | if (ixgbe_pcie_from_parent(&adapter->hw)) |
e027d1ae | 8711 | physfns = 4; |
8818970d JK |
8712 | |
8713 | list_for_each_entry(entry, &adapter->pdev->bus->devices, bus_list) { | |
8714 | /* don't count virtual functions */ | |
caafb95d JK |
8715 | if (entry->is_virtfn) |
8716 | continue; | |
8717 | ||
8718 | /* When the devices on the bus don't all match our device ID, | |
8719 | * we can't reliably determine the correct number of | |
8720 | * functions. This can occur if a function has been direct | |
8721 | * attached to a virtual machine using VT-d, for example. In | |
8722 | * this case, simply return -1 to indicate this. | |
8723 | */ | |
8724 | if ((entry->vendor != pdev->vendor) || | |
8725 | (entry->device != pdev->device)) | |
8726 | return -1; | |
8727 | ||
8728 | physfns++; | |
e027d1ae JK |
8729 | } |
8730 | ||
8731 | return physfns; | |
8732 | } | |
8733 | ||
8e2813f5 JK |
8734 | /** |
8735 | * ixgbe_wol_supported - Check whether device supports WoL | |
8736 | * @hw: hw specific details | |
8737 | * @device_id: the device ID | |
8738 | * @subdev_id: the subsystem device ID | |
8739 | * | |
8740 | * This function is used by probe and ethtool to determine | |
8741 | * which devices have WoL support | |
8742 | * | |
8743 | **/ | |
8744 | int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id, | |
8745 | u16 subdevice_id) | |
8746 | { | |
8747 | struct ixgbe_hw *hw = &adapter->hw; | |
8748 | u16 wol_cap = adapter->eeprom_cap & IXGBE_DEVICE_CAPS_WOL_MASK; | |
8749 | int is_wol_supported = 0; | |
8750 | ||
8751 | switch (device_id) { | |
8752 | case IXGBE_DEV_ID_82599_SFP: | |
8753 | /* Only these subdevices could supports WOL */ | |
8754 | switch (subdevice_id) { | |
87557440 | 8755 | case IXGBE_SUBDEV_ID_82599_SFP_WOL0: |
8e2813f5 JK |
8756 | case IXGBE_SUBDEV_ID_82599_560FLR: |
8757 | /* only support first port */ | |
8758 | if (hw->bus.func != 0) | |
8759 | break; | |
5700ff26 | 8760 | case IXGBE_SUBDEV_ID_82599_SP_560FLR: |
8e2813f5 | 8761 | case IXGBE_SUBDEV_ID_82599_SFP: |
b6dfd939 | 8762 | case IXGBE_SUBDEV_ID_82599_RNDC: |
f8a06c2c | 8763 | case IXGBE_SUBDEV_ID_82599_ECNA_DP: |
979fe5f7 | 8764 | case IXGBE_SUBDEV_ID_82599_LOM_SFP: |
8e2813f5 JK |
8765 | is_wol_supported = 1; |
8766 | break; | |
8767 | } | |
8768 | break; | |
5daebbb0 DS |
8769 | case IXGBE_DEV_ID_82599EN_SFP: |
8770 | /* Only this subdevice supports WOL */ | |
8771 | switch (subdevice_id) { | |
8772 | case IXGBE_SUBDEV_ID_82599EN_SFP_OCP1: | |
8773 | is_wol_supported = 1; | |
8774 | break; | |
8775 | } | |
8776 | break; | |
8e2813f5 JK |
8777 | case IXGBE_DEV_ID_82599_COMBO_BACKPLANE: |
8778 | /* All except this subdevice support WOL */ | |
8779 | if (subdevice_id != IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ) | |
8780 | is_wol_supported = 1; | |
8781 | break; | |
8782 | case IXGBE_DEV_ID_82599_KX4: | |
8783 | is_wol_supported = 1; | |
8784 | break; | |
8785 | case IXGBE_DEV_ID_X540T: | |
df376f0d | 8786 | case IXGBE_DEV_ID_X540T1: |
df8c26fd DS |
8787 | case IXGBE_DEV_ID_X550T: |
8788 | case IXGBE_DEV_ID_X550EM_X_KX4: | |
8789 | case IXGBE_DEV_ID_X550EM_X_KR: | |
8790 | case IXGBE_DEV_ID_X550EM_X_10G_T: | |
8e2813f5 JK |
8791 | /* check eeprom to see if enabled wol */ |
8792 | if ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0_1) || | |
8793 | ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0) && | |
8794 | (hw->bus.func == 0))) { | |
8795 | is_wol_supported = 1; | |
8796 | } | |
8797 | break; | |
8798 | } | |
8799 | ||
8800 | return is_wol_supported; | |
8801 | } | |
8802 | ||
c762dff2 MP |
8803 | /** |
8804 | * ixgbe_get_platform_mac_addr - Look up MAC address in Open Firmware / IDPROM | |
8805 | * @adapter: Pointer to adapter struct | |
8806 | */ | |
8807 | static void ixgbe_get_platform_mac_addr(struct ixgbe_adapter *adapter) | |
8808 | { | |
8809 | #ifdef CONFIG_OF | |
8810 | struct device_node *dp = pci_device_to_OF_node(adapter->pdev); | |
8811 | struct ixgbe_hw *hw = &adapter->hw; | |
8812 | const unsigned char *addr; | |
8813 | ||
8814 | addr = of_get_mac_address(dp); | |
8815 | if (addr) { | |
8816 | ether_addr_copy(hw->mac.perm_addr, addr); | |
8817 | return; | |
8818 | } | |
8819 | #endif /* CONFIG_OF */ | |
8820 | ||
8821 | #ifdef CONFIG_SPARC | |
8822 | ether_addr_copy(hw->mac.perm_addr, idprom->id_ethaddr); | |
8823 | #endif /* CONFIG_SPARC */ | |
8824 | } | |
8825 | ||
9a799d71 AK |
8826 | /** |
8827 | * ixgbe_probe - Device Initialization Routine | |
8828 | * @pdev: PCI device information struct | |
8829 | * @ent: entry in ixgbe_pci_tbl | |
8830 | * | |
8831 | * Returns 0 on success, negative on failure | |
8832 | * | |
8833 | * ixgbe_probe initializes an adapter identified by a pci_dev structure. | |
8834 | * The OS initialization, configuring of the adapter private structure, | |
8835 | * and a hardware reset occur. | |
8836 | **/ | |
1dd06ae8 | 8837 | static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
9a799d71 AK |
8838 | { |
8839 | struct net_device *netdev; | |
8840 | struct ixgbe_adapter *adapter = NULL; | |
8841 | struct ixgbe_hw *hw; | |
8842 | const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; | |
e027d1ae | 8843 | int i, err, pci_using_dac, expected_gts; |
d3cb9869 | 8844 | unsigned int indices = MAX_TX_QUEUES; |
289700db | 8845 | u8 part_str[IXGBE_PBANUM_LENGTH]; |
b5b2ffc0 | 8846 | bool disable_dev = false; |
eacd73f7 YZ |
8847 | #ifdef IXGBE_FCOE |
8848 | u16 device_caps; | |
8849 | #endif | |
289700db | 8850 | u32 eec; |
9a799d71 | 8851 | |
bded64a7 AG |
8852 | /* Catch broken hardware that put the wrong VF device ID in |
8853 | * the PCIe SR-IOV capability. | |
8854 | */ | |
8855 | if (pdev->is_virtfn) { | |
8856 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", | |
8857 | pci_name(pdev), pdev->vendor, pdev->device); | |
8858 | return -EINVAL; | |
8859 | } | |
8860 | ||
9ce77666 | 8861 | err = pci_enable_device_mem(pdev); |
9a799d71 AK |
8862 | if (err) |
8863 | return err; | |
8864 | ||
f5f2eda8 | 8865 | if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { |
9a799d71 AK |
8866 | pci_using_dac = 1; |
8867 | } else { | |
f5f2eda8 | 8868 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
9a799d71 | 8869 | if (err) { |
f5f2eda8 RK |
8870 | dev_err(&pdev->dev, |
8871 | "No usable DMA configuration, aborting\n"); | |
8872 | goto err_dma; | |
9a799d71 AK |
8873 | } |
8874 | pci_using_dac = 0; | |
8875 | } | |
8876 | ||
9ce77666 | 8877 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 8878 | IORESOURCE_MEM), ixgbe_driver_name); |
9a799d71 | 8879 | if (err) { |
b8bc0421 DC |
8880 | dev_err(&pdev->dev, |
8881 | "pci_request_selected_regions failed 0x%x\n", err); | |
9a799d71 AK |
8882 | goto err_pci_reg; |
8883 | } | |
8884 | ||
19d5afd4 | 8885 | pci_enable_pcie_error_reporting(pdev); |
6fabd715 | 8886 | |
9a799d71 | 8887 | pci_set_master(pdev); |
fb3b27bc | 8888 | pci_save_state(pdev); |
9a799d71 | 8889 | |
d3cb9869 | 8890 | if (ii->mac == ixgbe_mac_82598EB) { |
e901acd6 | 8891 | #ifdef CONFIG_IXGBE_DCB |
d3cb9869 AD |
8892 | /* 8 TC w/ 4 queues per TC */ |
8893 | indices = 4 * MAX_TRAFFIC_CLASS; | |
8894 | #else | |
8895 | indices = IXGBE_MAX_RSS_INDICES; | |
e901acd6 | 8896 | #endif |
d3cb9869 | 8897 | } |
e901acd6 | 8898 | |
c85a2618 | 8899 | netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); |
9a799d71 AK |
8900 | if (!netdev) { |
8901 | err = -ENOMEM; | |
8902 | goto err_alloc_etherdev; | |
8903 | } | |
8904 | ||
9a799d71 AK |
8905 | SET_NETDEV_DEV(netdev, &pdev->dev); |
8906 | ||
9a799d71 AK |
8907 | adapter = netdev_priv(netdev); |
8908 | ||
8909 | adapter->netdev = netdev; | |
8910 | adapter->pdev = pdev; | |
8911 | hw = &adapter->hw; | |
8912 | hw->back = adapter; | |
b3f4d599 | 8913 | adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); |
9a799d71 | 8914 | |
05857980 | 8915 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), |
e8e9f696 | 8916 | pci_resource_len(pdev, 0)); |
2a1a091c | 8917 | adapter->io_addr = hw->hw_addr; |
9a799d71 AK |
8918 | if (!hw->hw_addr) { |
8919 | err = -EIO; | |
8920 | goto err_ioremap; | |
8921 | } | |
8922 | ||
0edc3527 | 8923 | netdev->netdev_ops = &ixgbe_netdev_ops; |
9a799d71 | 8924 | ixgbe_set_ethtool_ops(netdev); |
9a799d71 | 8925 | netdev->watchdog_timeo = 5 * HZ; |
339de30f | 8926 | strlcpy(netdev->name, pci_name(pdev), sizeof(netdev->name)); |
9a799d71 | 8927 | |
9a799d71 AK |
8928 | /* Setup hw api */ |
8929 | memcpy(&hw->mac.ops, ii->mac_ops, sizeof(hw->mac.ops)); | |
021230d4 | 8930 | hw->mac.type = ii->mac; |
9a900eca | 8931 | hw->mvals = ii->mvals; |
9a799d71 | 8932 | |
c44ade9e JB |
8933 | /* EEPROM */ |
8934 | memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops)); | |
9a900eca | 8935 | eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw)); |
58cf663f MR |
8936 | if (ixgbe_removed(hw->hw_addr)) { |
8937 | err = -EIO; | |
8938 | goto err_ioremap; | |
8939 | } | |
c44ade9e JB |
8940 | /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */ |
8941 | if (!(eec & (1 << 8))) | |
8942 | hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic; | |
8943 | ||
8944 | /* PHY */ | |
8945 | memcpy(&hw->phy.ops, ii->phy_ops, sizeof(hw->phy.ops)); | |
c4900be0 | 8946 | hw->phy.sfp_type = ixgbe_sfp_type_unknown; |
6b73e10d BH |
8947 | /* ixgbe_identify_phy_generic will set prtad and mmds properly */ |
8948 | hw->phy.mdio.prtad = MDIO_PRTAD_NONE; | |
8949 | hw->phy.mdio.mmds = 0; | |
8950 | hw->phy.mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
8951 | hw->phy.mdio.dev = netdev; | |
8952 | hw->phy.mdio.mdio_read = ixgbe_mdio_read; | |
8953 | hw->phy.mdio.mdio_write = ixgbe_mdio_write; | |
c4900be0 | 8954 | |
8ca783ab | 8955 | ii->get_invariants(hw); |
9a799d71 AK |
8956 | |
8957 | /* setup the private structure */ | |
8958 | err = ixgbe_sw_init(adapter); | |
8959 | if (err) | |
8960 | goto err_sw_init; | |
8961 | ||
e86bff0e | 8962 | /* Make it possible the adapter to be woken up via WOL */ |
b93a2226 DS |
8963 | switch (adapter->hw.mac.type) { |
8964 | case ixgbe_mac_82599EB: | |
8965 | case ixgbe_mac_X540: | |
9a75a1ac DS |
8966 | case ixgbe_mac_X550: |
8967 | case ixgbe_mac_X550EM_x: | |
e86bff0e | 8968 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
b93a2226 DS |
8969 | break; |
8970 | default: | |
8971 | break; | |
8972 | } | |
e86bff0e | 8973 | |
bf069c97 DS |
8974 | /* |
8975 | * If there is a fan on this device and it has failed log the | |
8976 | * failure. | |
8977 | */ | |
8978 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
8979 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
8980 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 8981 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
8982 | } |
8983 | ||
8ef78adc PWJ |
8984 | if (allow_unsupported_sfp) |
8985 | hw->allow_unsupported_sfp = allow_unsupported_sfp; | |
8986 | ||
c44ade9e | 8987 | /* reset_hw fills in the perm_addr as well */ |
119fc60a | 8988 | hw->phy.reset_if_overtemp = true; |
c44ade9e | 8989 | err = hw->mac.ops.reset_hw(hw); |
119fc60a | 8990 | hw->phy.reset_if_overtemp = false; |
29a8dca1 | 8991 | if (err == IXGBE_ERR_SFP_NOT_PRESENT) { |
8ca783ab DS |
8992 | err = 0; |
8993 | } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { | |
1b1bf31a DS |
8994 | e_dev_err("failed to load because an unsupported SFP+ or QSFP module type was detected.\n"); |
8995 | e_dev_err("Reload the driver after installing a supported module.\n"); | |
04f165ef PW |
8996 | goto err_sw_init; |
8997 | } else if (err) { | |
849c4542 | 8998 | e_dev_err("HW Init failed: %d\n", err); |
c44ade9e JB |
8999 | goto err_sw_init; |
9000 | } | |
9001 | ||
99d74487 | 9002 | #ifdef CONFIG_PCI_IOV |
60a1a680 GR |
9003 | /* SR-IOV not supported on the 82598 */ |
9004 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
9005 | goto skip_sriov; | |
9006 | /* Mailbox */ | |
9007 | ixgbe_init_mbx_params_pf(hw); | |
9008 | memcpy(&hw->mbx.ops, ii->mbx_ops, sizeof(hw->mbx.ops)); | |
dcc23e3a | 9009 | pci_sriov_set_totalvfs(pdev, IXGBE_MAX_VFS_DRV_LIMIT); |
31ac910e | 9010 | ixgbe_enable_sriov(adapter); |
60a1a680 | 9011 | skip_sriov: |
1cdd1ec8 | 9012 | |
99d74487 | 9013 | #endif |
396e799c | 9014 | netdev->features = NETIF_F_SG | |
e8e9f696 | 9015 | NETIF_F_IP_CSUM | |
082757af | 9016 | NETIF_F_IPV6_CSUM | |
f646968f PM |
9017 | NETIF_F_HW_VLAN_CTAG_TX | |
9018 | NETIF_F_HW_VLAN_CTAG_RX | | |
082757af DS |
9019 | NETIF_F_TSO | |
9020 | NETIF_F_TSO6 | | |
082757af | 9021 | NETIF_F_RXHASH | |
8bf1264d | 9022 | NETIF_F_RXCSUM; |
9a799d71 | 9023 | |
8bf1264d | 9024 | netdev->hw_features = netdev->features | NETIF_F_HW_L2FW_DOFFLOAD; |
ad31c402 | 9025 | |
58be7666 DS |
9026 | switch (adapter->hw.mac.type) { |
9027 | case ixgbe_mac_82599EB: | |
9028 | case ixgbe_mac_X540: | |
9a75a1ac DS |
9029 | case ixgbe_mac_X550: |
9030 | case ixgbe_mac_X550EM_x: | |
53692b1d TH |
9031 | netdev->features |= NETIF_F_SCTP_CRC; |
9032 | netdev->hw_features |= NETIF_F_SCTP_CRC | | |
082757af | 9033 | NETIF_F_NTUPLE; |
58be7666 DS |
9034 | break; |
9035 | default: | |
9036 | break; | |
9037 | } | |
45a5ead0 | 9038 | |
3f2d1c0f | 9039 | netdev->hw_features |= NETIF_F_RXALL; |
87031c0d | 9040 | netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
3f2d1c0f | 9041 | |
ad31c402 JK |
9042 | netdev->vlan_features |= NETIF_F_TSO; |
9043 | netdev->vlan_features |= NETIF_F_TSO6; | |
22f32b7a | 9044 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
cd1da503 | 9045 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
ad31c402 JK |
9046 | netdev->vlan_features |= NETIF_F_SG; |
9047 | ||
fb8ad4a5 | 9048 | netdev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
f467bc06 | 9049 | |
01789349 | 9050 | netdev->priv_flags |= IFF_UNICAST_FLT; |
f43f313e | 9051 | netdev->priv_flags |= IFF_SUPP_NOFCS; |
01789349 | 9052 | |
67359c3c | 9053 | #ifdef CONFIG_IXGBE_VXLAN |
3f207800 DS |
9054 | switch (adapter->hw.mac.type) { |
9055 | case ixgbe_mac_X550: | |
9056 | case ixgbe_mac_X550EM_x: | |
fb8ad4a5 | 9057 | netdev->hw_enc_features |= NETIF_F_RXCSUM; |
3f207800 DS |
9058 | break; |
9059 | default: | |
9060 | break; | |
9061 | } | |
67359c3c | 9062 | #endif /* CONFIG_IXGBE_VXLAN */ |
3f207800 | 9063 | |
7a6b6f51 | 9064 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
9065 | netdev->dcbnl_ops = &dcbnl_ops; |
9066 | #endif | |
9067 | ||
eacd73f7 | 9068 | #ifdef IXGBE_FCOE |
0d551589 | 9069 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
d3cb9869 AD |
9070 | unsigned int fcoe_l; |
9071 | ||
eacd73f7 YZ |
9072 | if (hw->mac.ops.get_device_caps) { |
9073 | hw->mac.ops.get_device_caps(hw, &device_caps); | |
0d551589 YZ |
9074 | if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) |
9075 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
eacd73f7 | 9076 | } |
7c8ae65a | 9077 | |
d3cb9869 AD |
9078 | |
9079 | fcoe_l = min_t(int, IXGBE_FCRETA_SIZE, num_online_cpus()); | |
9080 | adapter->ring_feature[RING_F_FCOE].limit = fcoe_l; | |
7c8ae65a | 9081 | |
a58915c7 AD |
9082 | netdev->features |= NETIF_F_FSO | |
9083 | NETIF_F_FCOE_CRC; | |
9084 | ||
7c8ae65a AD |
9085 | netdev->vlan_features |= NETIF_F_FSO | |
9086 | NETIF_F_FCOE_CRC | | |
9087 | NETIF_F_FCOE_MTU; | |
5e09d7f6 | 9088 | } |
eacd73f7 | 9089 | #endif /* IXGBE_FCOE */ |
7b872a55 | 9090 | if (pci_using_dac) { |
9a799d71 | 9091 | netdev->features |= NETIF_F_HIGHDMA; |
7b872a55 YZ |
9092 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
9093 | } | |
9a799d71 | 9094 | |
082757af DS |
9095 | if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) |
9096 | netdev->hw_features |= NETIF_F_LRO; | |
0c19d6af | 9097 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
f8212f97 AD |
9098 | netdev->features |= NETIF_F_LRO; |
9099 | ||
9a799d71 | 9100 | /* make sure the EEPROM is good */ |
c44ade9e | 9101 | if (hw->eeprom.ops.validate_checksum(hw, NULL) < 0) { |
849c4542 | 9102 | e_dev_err("The EEPROM Checksum Is Not Valid\n"); |
9a799d71 | 9103 | err = -EIO; |
35937c05 | 9104 | goto err_sw_init; |
9a799d71 AK |
9105 | } |
9106 | ||
c762dff2 MP |
9107 | ixgbe_get_platform_mac_addr(adapter); |
9108 | ||
9a799d71 | 9109 | memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); |
9a799d71 | 9110 | |
aaeb6cdf | 9111 | if (!is_valid_ether_addr(netdev->dev_addr)) { |
849c4542 | 9112 | e_dev_err("invalid MAC address\n"); |
9a799d71 | 9113 | err = -EIO; |
35937c05 | 9114 | goto err_sw_init; |
9a799d71 AK |
9115 | } |
9116 | ||
c9f53e63 | 9117 | ixgbe_mac_set_default_filter(adapter); |
5d7daa35 | 9118 | |
7086400d | 9119 | setup_timer(&adapter->service_timer, &ixgbe_service_timer, |
581330ba | 9120 | (unsigned long) adapter); |
9a799d71 | 9121 | |
58cf663f MR |
9122 | if (ixgbe_removed(hw->hw_addr)) { |
9123 | err = -EIO; | |
9124 | goto err_sw_init; | |
9125 | } | |
7086400d | 9126 | INIT_WORK(&adapter->service_task, ixgbe_service_task); |
58cf663f | 9127 | set_bit(__IXGBE_SERVICE_INITED, &adapter->state); |
7086400d | 9128 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); |
9a799d71 | 9129 | |
021230d4 AV |
9130 | err = ixgbe_init_interrupt_scheme(adapter); |
9131 | if (err) | |
9132 | goto err_sw_init; | |
9a799d71 | 9133 | |
8e2813f5 | 9134 | /* WOL not supported for all devices */ |
c23f5b6b | 9135 | adapter->wol = 0; |
8e2813f5 | 9136 | hw->eeprom.ops.read(hw, 0x2c, &adapter->eeprom_cap); |
6b92b0ba | 9137 | hw->wol_enabled = ixgbe_wol_supported(adapter, pdev->device, |
b8f83638 | 9138 | pdev->subsystem_device); |
6b92b0ba | 9139 | if (hw->wol_enabled) |
9417c464 | 9140 | adapter->wol = IXGBE_WUFC_MAG; |
c23f5b6b | 9141 | |
e8e26350 PW |
9142 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
9143 | ||
15e5209f ET |
9144 | /* save off EEPROM version number */ |
9145 | hw->eeprom.ops.read(hw, 0x2e, &adapter->eeprom_verh); | |
9146 | hw->eeprom.ops.read(hw, 0x2d, &adapter->eeprom_verl); | |
9147 | ||
04f165ef | 9148 | /* pick up the PCI bus settings for reporting later */ |
e027d1ae | 9149 | if (ixgbe_pcie_from_parent(hw)) |
b8e82001 | 9150 | ixgbe_get_parent_bus_info(adapter); |
f9328bc6 DS |
9151 | else |
9152 | hw->mac.ops.get_bus_info(hw); | |
04f165ef | 9153 | |
e027d1ae JK |
9154 | /* calculate the expected PCIe bandwidth required for optimal |
9155 | * performance. Note that some older parts will never have enough | |
9156 | * bandwidth due to being older generation PCIe parts. We clamp these | |
9157 | * parts to ensure no warning is displayed if it can't be fixed. | |
9158 | */ | |
9159 | switch (hw->mac.type) { | |
9160 | case ixgbe_mac_82598EB: | |
9161 | expected_gts = min(ixgbe_enumerate_functions(adapter) * 10, 16); | |
9162 | break; | |
9163 | default: | |
9164 | expected_gts = ixgbe_enumerate_functions(adapter) * 10; | |
9165 | break; | |
0c254d86 | 9166 | } |
caafb95d JK |
9167 | |
9168 | /* don't check link if we failed to enumerate functions */ | |
9169 | if (expected_gts > 0) | |
9170 | ixgbe_check_minimum_link(adapter, expected_gts); | |
0c254d86 | 9171 | |
339de30f | 9172 | err = ixgbe_read_pba_string_generic(hw, part_str, sizeof(part_str)); |
6a2aae5a | 9173 | if (err) |
339de30f | 9174 | strlcpy(part_str, "Unknown", sizeof(part_str)); |
6a2aae5a JK |
9175 | if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) |
9176 | e_dev_info("MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n", | |
9177 | hw->mac.type, hw->phy.type, hw->phy.sfp_type, | |
e7cf745b | 9178 | part_str); |
6a2aae5a JK |
9179 | else |
9180 | e_dev_info("MAC: %d, PHY: %d, PBA No: %s\n", | |
9181 | hw->mac.type, hw->phy.type, part_str); | |
9182 | ||
9183 | e_dev_info("%pM\n", netdev->dev_addr); | |
9184 | ||
9a799d71 | 9185 | /* reset the hardware with the new settings */ |
794caeb2 | 9186 | err = hw->mac.ops.start_hw(hw); |
794caeb2 PWJ |
9187 | if (err == IXGBE_ERR_EEPROM_VERSION) { |
9188 | /* We are running on a pre-production device, log a warning */ | |
849c4542 ET |
9189 | e_dev_warn("This device is a pre-production adapter/LOM. " |
9190 | "Please be aware there may be issues associated " | |
9191 | "with your hardware. If you are experiencing " | |
9192 | "problems please contact your Intel or hardware " | |
9193 | "representative who provided you with this " | |
9194 | "hardware.\n"); | |
794caeb2 | 9195 | } |
9a799d71 AK |
9196 | strcpy(netdev->name, "eth%d"); |
9197 | err = register_netdev(netdev); | |
9198 | if (err) | |
9199 | goto err_register; | |
9200 | ||
0fb6a55c ET |
9201 | pci_set_drvdata(pdev, adapter); |
9202 | ||
ec74a471 ET |
9203 | /* power down the optics for 82599 SFP+ fiber */ |
9204 | if (hw->mac.ops.disable_tx_laser) | |
93d3ce8f ET |
9205 | hw->mac.ops.disable_tx_laser(hw); |
9206 | ||
54386467 JB |
9207 | /* carrier off reporting is important to ethtool even BEFORE open */ |
9208 | netif_carrier_off(netdev); | |
9209 | ||
5dd2d332 | 9210 | #ifdef CONFIG_IXGBE_DCA |
652f093f | 9211 | if (dca_add_requester(&pdev->dev) == 0) { |
bd0362dd | 9212 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
9213 | ixgbe_setup_dca(adapter); |
9214 | } | |
9215 | #endif | |
1cdd1ec8 | 9216 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
396e799c | 9217 | e_info(probe, "IOV is enabled with %d VFs\n", adapter->num_vfs); |
1cdd1ec8 GR |
9218 | for (i = 0; i < adapter->num_vfs; i++) |
9219 | ixgbe_vf_configuration(pdev, (i | 0x10000000)); | |
9220 | } | |
9221 | ||
2466dd9c JK |
9222 | /* firmware requires driver version to be 0xFFFFFFFF |
9223 | * since os does not support feature | |
9224 | */ | |
9612de92 | 9225 | if (hw->mac.ops.set_fw_drv_ver) |
2466dd9c JK |
9226 | hw->mac.ops.set_fw_drv_ver(hw, 0xFF, 0xFF, 0xFF, |
9227 | 0xFF); | |
9612de92 | 9228 | |
0365e6e4 PW |
9229 | /* add san mac addr to netdev */ |
9230 | ixgbe_add_sanmac_netdev(netdev); | |
9a799d71 | 9231 | |
ea81875a | 9232 | e_dev_info("%s\n", ixgbe_default_device_descr); |
3ca8bc6d | 9233 | |
1210982b | 9234 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d DS |
9235 | if (ixgbe_sysfs_init(adapter)) |
9236 | e_err(probe, "failed to allocate sysfs resources\n"); | |
1210982b | 9237 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 9238 | |
00949167 | 9239 | ixgbe_dbg_adapter_init(adapter); |
00949167 | 9240 | |
d1a35ee2 ET |
9241 | /* setup link for SFP devices with MNG FW, else wait for IXGBE_UP */ |
9242 | if (ixgbe_mng_enabled(hw) && ixgbe_is_sfp(hw) && hw->mac.ops.setup_link) | |
0b2679d6 DS |
9243 | hw->mac.ops.setup_link(hw, |
9244 | IXGBE_LINK_SPEED_10GB_FULL | IXGBE_LINK_SPEED_1GB_FULL, | |
9245 | true); | |
9246 | ||
9a799d71 AK |
9247 | return 0; |
9248 | ||
9249 | err_register: | |
5eba3699 | 9250 | ixgbe_release_hw_control(adapter); |
7a921c93 | 9251 | ixgbe_clear_interrupt_scheme(adapter); |
9a799d71 | 9252 | err_sw_init: |
99d74487 | 9253 | ixgbe_disable_sriov(adapter); |
7086400d | 9254 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
2a1a091c | 9255 | iounmap(adapter->io_addr); |
5d7daa35 | 9256 | kfree(adapter->mac_table); |
9a799d71 | 9257 | err_ioremap: |
b5b2ffc0 | 9258 | disable_dev = !test_and_set_bit(__IXGBE_DISABLED, &adapter->state); |
9a799d71 AK |
9259 | free_netdev(netdev); |
9260 | err_alloc_etherdev: | |
e8e9f696 JP |
9261 | pci_release_selected_regions(pdev, |
9262 | pci_select_bars(pdev, IORESOURCE_MEM)); | |
9a799d71 AK |
9263 | err_pci_reg: |
9264 | err_dma: | |
b5b2ffc0 | 9265 | if (!adapter || disable_dev) |
41c62843 | 9266 | pci_disable_device(pdev); |
9a799d71 AK |
9267 | return err; |
9268 | } | |
9269 | ||
9270 | /** | |
9271 | * ixgbe_remove - Device Removal Routine | |
9272 | * @pdev: PCI device information struct | |
9273 | * | |
9274 | * ixgbe_remove is called by the PCI subsystem to alert the driver | |
9275 | * that it should release a PCI device. The could be caused by a | |
9276 | * Hot-Plug event, or because the driver is going to be removed from | |
9277 | * memory. | |
9278 | **/ | |
9f9a12f8 | 9279 | static void ixgbe_remove(struct pci_dev *pdev) |
9a799d71 | 9280 | { |
c60fbb00 | 9281 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
0fb6a55c | 9282 | struct net_device *netdev; |
b5b2ffc0 | 9283 | bool disable_dev; |
9a799d71 | 9284 | |
0fb6a55c ET |
9285 | /* if !adapter then we already cleaned up in probe */ |
9286 | if (!adapter) | |
9287 | return; | |
9288 | ||
9289 | netdev = adapter->netdev; | |
00949167 | 9290 | ixgbe_dbg_adapter_exit(adapter); |
00949167 | 9291 | |
09f40aed | 9292 | set_bit(__IXGBE_REMOVING, &adapter->state); |
7086400d | 9293 | cancel_work_sync(&adapter->service_task); |
9a799d71 | 9294 | |
3a6a4eda | 9295 | |
5dd2d332 | 9296 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
9297 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
9298 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
9299 | dca_remove_requester(&pdev->dev); | |
9de7605e MR |
9300 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, |
9301 | IXGBE_DCA_CTRL_DCA_DISABLE); | |
bd0362dd JC |
9302 | } |
9303 | ||
9304 | #endif | |
1210982b | 9305 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d | 9306 | ixgbe_sysfs_exit(adapter); |
1210982b | 9307 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 9308 | |
0365e6e4 PW |
9309 | /* remove the added san mac */ |
9310 | ixgbe_del_sanmac_netdev(netdev); | |
9311 | ||
da36b647 | 9312 | #ifdef CONFIG_PCI_IOV |
7837e286 | 9313 | ixgbe_disable_sriov(adapter); |
da36b647 | 9314 | #endif |
6b010e9b AW |
9315 | if (netdev->reg_state == NETREG_REGISTERED) |
9316 | unregister_netdev(netdev); | |
9317 | ||
7a921c93 | 9318 | ixgbe_clear_interrupt_scheme(adapter); |
5eba3699 | 9319 | |
021230d4 | 9320 | ixgbe_release_hw_control(adapter); |
9a799d71 | 9321 | |
2b1588c3 AD |
9322 | #ifdef CONFIG_DCB |
9323 | kfree(adapter->ixgbe_ieee_pfc); | |
9324 | kfree(adapter->ixgbe_ieee_ets); | |
9325 | ||
9326 | #endif | |
2a1a091c | 9327 | iounmap(adapter->io_addr); |
9ce77666 | 9328 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 9329 | IORESOURCE_MEM)); |
9a799d71 | 9330 | |
849c4542 | 9331 | e_dev_info("complete\n"); |
021230d4 | 9332 | |
5d7daa35 | 9333 | kfree(adapter->mac_table); |
b5b2ffc0 | 9334 | disable_dev = !test_and_set_bit(__IXGBE_DISABLED, &adapter->state); |
9a799d71 AK |
9335 | free_netdev(netdev); |
9336 | ||
19d5afd4 | 9337 | pci_disable_pcie_error_reporting(pdev); |
6fabd715 | 9338 | |
b5b2ffc0 | 9339 | if (disable_dev) |
41c62843 | 9340 | pci_disable_device(pdev); |
9a799d71 AK |
9341 | } |
9342 | ||
9343 | /** | |
9344 | * ixgbe_io_error_detected - called when PCI error is detected | |
9345 | * @pdev: Pointer to PCI device | |
9346 | * @state: The current pci connection state | |
9347 | * | |
9348 | * This function is called after a PCI bus error affecting | |
9349 | * this device has been detected. | |
9350 | */ | |
9351 | static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, | |
e8e9f696 | 9352 | pci_channel_state_t state) |
9a799d71 | 9353 | { |
c60fbb00 AD |
9354 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
9355 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 9356 | |
83c61fa9 | 9357 | #ifdef CONFIG_PCI_IOV |
14438464 | 9358 | struct ixgbe_hw *hw = &adapter->hw; |
83c61fa9 GR |
9359 | struct pci_dev *bdev, *vfdev; |
9360 | u32 dw0, dw1, dw2, dw3; | |
9361 | int vf, pos; | |
9362 | u16 req_id, pf_func; | |
9363 | ||
9364 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
9365 | adapter->num_vfs == 0) | |
9366 | goto skip_bad_vf_detection; | |
9367 | ||
9368 | bdev = pdev->bus->self; | |
62f87c0e | 9369 | while (bdev && (pci_pcie_type(bdev) != PCI_EXP_TYPE_ROOT_PORT)) |
83c61fa9 GR |
9370 | bdev = bdev->bus->self; |
9371 | ||
9372 | if (!bdev) | |
9373 | goto skip_bad_vf_detection; | |
9374 | ||
9375 | pos = pci_find_ext_capability(bdev, PCI_EXT_CAP_ID_ERR); | |
9376 | if (!pos) | |
9377 | goto skip_bad_vf_detection; | |
9378 | ||
14438464 MR |
9379 | dw0 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG); |
9380 | dw1 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 4); | |
9381 | dw2 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 8); | |
9382 | dw3 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 12); | |
9383 | if (ixgbe_removed(hw->hw_addr)) | |
9384 | goto skip_bad_vf_detection; | |
83c61fa9 GR |
9385 | |
9386 | req_id = dw1 >> 16; | |
9387 | /* On the 82599 if bit 7 of the requestor ID is set then it's a VF */ | |
9388 | if (!(req_id & 0x0080)) | |
9389 | goto skip_bad_vf_detection; | |
9390 | ||
9391 | pf_func = req_id & 0x01; | |
9392 | if ((pf_func & 1) == (pdev->devfn & 1)) { | |
9393 | unsigned int device_id; | |
9394 | ||
9395 | vf = (req_id & 0x7F) >> 1; | |
9396 | e_dev_err("VF %d has caused a PCIe error\n", vf); | |
9397 | e_dev_err("TLP: dw0: %8.8x\tdw1: %8.8x\tdw2: " | |
9398 | "%8.8x\tdw3: %8.8x\n", | |
9399 | dw0, dw1, dw2, dw3); | |
9400 | switch (adapter->hw.mac.type) { | |
9401 | case ixgbe_mac_82599EB: | |
9402 | device_id = IXGBE_82599_VF_DEVICE_ID; | |
9403 | break; | |
9404 | case ixgbe_mac_X540: | |
9405 | device_id = IXGBE_X540_VF_DEVICE_ID; | |
9406 | break; | |
9a75a1ac DS |
9407 | case ixgbe_mac_X550: |
9408 | device_id = IXGBE_DEV_ID_X550_VF; | |
9409 | break; | |
9410 | case ixgbe_mac_X550EM_x: | |
9411 | device_id = IXGBE_DEV_ID_X550EM_X_VF; | |
9412 | break; | |
83c61fa9 GR |
9413 | default: |
9414 | device_id = 0; | |
9415 | break; | |
9416 | } | |
9417 | ||
9418 | /* Find the pci device of the offending VF */ | |
36e90319 | 9419 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, device_id, NULL); |
83c61fa9 GR |
9420 | while (vfdev) { |
9421 | if (vfdev->devfn == (req_id & 0xFF)) | |
9422 | break; | |
36e90319 | 9423 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
83c61fa9 GR |
9424 | device_id, vfdev); |
9425 | } | |
9426 | /* | |
9427 | * There's a slim chance the VF could have been hot plugged, | |
9428 | * so if it is no longer present we don't need to issue the | |
9429 | * VFLR. Just clean up the AER in that case. | |
9430 | */ | |
9431 | if (vfdev) { | |
9079e416 | 9432 | ixgbe_issue_vf_flr(adapter, vfdev); |
b4fafbe9 GR |
9433 | /* Free device reference count */ |
9434 | pci_dev_put(vfdev); | |
83c61fa9 GR |
9435 | } |
9436 | ||
9437 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
9438 | } | |
9439 | ||
9440 | /* | |
9441 | * Even though the error may have occurred on the other port | |
9442 | * we still need to increment the vf error reference count for | |
9443 | * both ports because the I/O resume function will be called | |
9444 | * for both of them. | |
9445 | */ | |
9446 | adapter->vferr_refcount++; | |
9447 | ||
9448 | return PCI_ERS_RESULT_RECOVERED; | |
9449 | ||
9450 | skip_bad_vf_detection: | |
9451 | #endif /* CONFIG_PCI_IOV */ | |
58cf663f MR |
9452 | if (!test_bit(__IXGBE_SERVICE_INITED, &adapter->state)) |
9453 | return PCI_ERS_RESULT_DISCONNECT; | |
9454 | ||
41c62843 | 9455 | rtnl_lock(); |
9a799d71 AK |
9456 | netif_device_detach(netdev); |
9457 | ||
41c62843 MR |
9458 | if (state == pci_channel_io_perm_failure) { |
9459 | rtnl_unlock(); | |
3044b8d1 | 9460 | return PCI_ERS_RESULT_DISCONNECT; |
41c62843 | 9461 | } |
3044b8d1 | 9462 | |
9a799d71 AK |
9463 | if (netif_running(netdev)) |
9464 | ixgbe_down(adapter); | |
41c62843 MR |
9465 | |
9466 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) | |
9467 | pci_disable_device(pdev); | |
9468 | rtnl_unlock(); | |
9a799d71 | 9469 | |
b4617240 | 9470 | /* Request a slot reset. */ |
9a799d71 AK |
9471 | return PCI_ERS_RESULT_NEED_RESET; |
9472 | } | |
9473 | ||
9474 | /** | |
9475 | * ixgbe_io_slot_reset - called after the pci bus has been reset. | |
9476 | * @pdev: Pointer to PCI device | |
9477 | * | |
9478 | * Restart the card from scratch, as if from a cold-boot. | |
9479 | */ | |
9480 | static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) | |
9481 | { | |
c60fbb00 | 9482 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
6fabd715 PWJ |
9483 | pci_ers_result_t result; |
9484 | int err; | |
9a799d71 | 9485 | |
9ce77666 | 9486 | if (pci_enable_device_mem(pdev)) { |
396e799c | 9487 | e_err(probe, "Cannot re-enable PCI device after reset.\n"); |
6fabd715 PWJ |
9488 | result = PCI_ERS_RESULT_DISCONNECT; |
9489 | } else { | |
4e857c58 | 9490 | smp_mb__before_atomic(); |
41c62843 | 9491 | clear_bit(__IXGBE_DISABLED, &adapter->state); |
0391bbe3 | 9492 | adapter->hw.hw_addr = adapter->io_addr; |
6fabd715 PWJ |
9493 | pci_set_master(pdev); |
9494 | pci_restore_state(pdev); | |
c0e1f68b | 9495 | pci_save_state(pdev); |
9a799d71 | 9496 | |
dd4d8ca6 | 9497 | pci_wake_from_d3(pdev, false); |
9a799d71 | 9498 | |
6fabd715 | 9499 | ixgbe_reset(adapter); |
88512539 | 9500 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
6fabd715 PWJ |
9501 | result = PCI_ERS_RESULT_RECOVERED; |
9502 | } | |
9503 | ||
9504 | err = pci_cleanup_aer_uncorrect_error_status(pdev); | |
9505 | if (err) { | |
849c4542 ET |
9506 | e_dev_err("pci_cleanup_aer_uncorrect_error_status " |
9507 | "failed 0x%0x\n", err); | |
6fabd715 PWJ |
9508 | /* non-fatal, continue */ |
9509 | } | |
9a799d71 | 9510 | |
6fabd715 | 9511 | return result; |
9a799d71 AK |
9512 | } |
9513 | ||
9514 | /** | |
9515 | * ixgbe_io_resume - called when traffic can start flowing again. | |
9516 | * @pdev: Pointer to PCI device | |
9517 | * | |
9518 | * This callback is called when the error recovery driver tells us that | |
9519 | * its OK to resume normal operation. | |
9520 | */ | |
9521 | static void ixgbe_io_resume(struct pci_dev *pdev) | |
9522 | { | |
c60fbb00 AD |
9523 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
9524 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 9525 | |
83c61fa9 GR |
9526 | #ifdef CONFIG_PCI_IOV |
9527 | if (adapter->vferr_refcount) { | |
9528 | e_info(drv, "Resuming after VF err\n"); | |
9529 | adapter->vferr_refcount--; | |
9530 | return; | |
9531 | } | |
9532 | ||
9533 | #endif | |
c7ccde0f AD |
9534 | if (netif_running(netdev)) |
9535 | ixgbe_up(adapter); | |
9a799d71 AK |
9536 | |
9537 | netif_device_attach(netdev); | |
9a799d71 AK |
9538 | } |
9539 | ||
3646f0e5 | 9540 | static const struct pci_error_handlers ixgbe_err_handler = { |
9a799d71 AK |
9541 | .error_detected = ixgbe_io_error_detected, |
9542 | .slot_reset = ixgbe_io_slot_reset, | |
9543 | .resume = ixgbe_io_resume, | |
9544 | }; | |
9545 | ||
9546 | static struct pci_driver ixgbe_driver = { | |
9547 | .name = ixgbe_driver_name, | |
9548 | .id_table = ixgbe_pci_tbl, | |
9549 | .probe = ixgbe_probe, | |
9f9a12f8 | 9550 | .remove = ixgbe_remove, |
9a799d71 AK |
9551 | #ifdef CONFIG_PM |
9552 | .suspend = ixgbe_suspend, | |
9553 | .resume = ixgbe_resume, | |
9554 | #endif | |
9555 | .shutdown = ixgbe_shutdown, | |
da36b647 | 9556 | .sriov_configure = ixgbe_pci_sriov_configure, |
9a799d71 AK |
9557 | .err_handler = &ixgbe_err_handler |
9558 | }; | |
9559 | ||
9560 | /** | |
9561 | * ixgbe_init_module - Driver Registration Routine | |
9562 | * | |
9563 | * ixgbe_init_module is the first routine called when the driver is | |
9564 | * loaded. All it does is register with the PCI subsystem. | |
9565 | **/ | |
9566 | static int __init ixgbe_init_module(void) | |
9567 | { | |
9568 | int ret; | |
c7689578 | 9569 | pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version); |
849c4542 | 9570 | pr_info("%s\n", ixgbe_copyright); |
9a799d71 | 9571 | |
780484d8 MR |
9572 | ixgbe_wq = create_singlethread_workqueue(ixgbe_driver_name); |
9573 | if (!ixgbe_wq) { | |
9574 | pr_err("%s: Failed to create workqueue\n", ixgbe_driver_name); | |
9575 | return -ENOMEM; | |
9576 | } | |
9577 | ||
00949167 | 9578 | ixgbe_dbg_init(); |
00949167 | 9579 | |
f01fc1a8 JK |
9580 | ret = pci_register_driver(&ixgbe_driver); |
9581 | if (ret) { | |
f01fc1a8 | 9582 | ixgbe_dbg_exit(); |
f01fc1a8 JK |
9583 | return ret; |
9584 | } | |
9585 | ||
5dd2d332 | 9586 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 9587 | dca_register_notify(&dca_notifier); |
bd0362dd | 9588 | #endif |
5dd2d332 | 9589 | |
f01fc1a8 | 9590 | return 0; |
9a799d71 | 9591 | } |
b4617240 | 9592 | |
9a799d71 AK |
9593 | module_init(ixgbe_init_module); |
9594 | ||
9595 | /** | |
9596 | * ixgbe_exit_module - Driver Exit Cleanup Routine | |
9597 | * | |
9598 | * ixgbe_exit_module is called just before the driver is removed | |
9599 | * from memory. | |
9600 | **/ | |
9601 | static void __exit ixgbe_exit_module(void) | |
9602 | { | |
5dd2d332 | 9603 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
9604 | dca_unregister_notify(&dca_notifier); |
9605 | #endif | |
9a799d71 | 9606 | pci_unregister_driver(&ixgbe_driver); |
00949167 | 9607 | |
00949167 | 9608 | ixgbe_dbg_exit(); |
780484d8 MR |
9609 | if (ixgbe_wq) { |
9610 | destroy_workqueue(ixgbe_wq); | |
9611 | ixgbe_wq = NULL; | |
9612 | } | |
9a799d71 | 9613 | } |
bd0362dd | 9614 | |
5dd2d332 | 9615 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 9616 | static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, |
e8e9f696 | 9617 | void *p) |
bd0362dd JC |
9618 | { |
9619 | int ret_val; | |
9620 | ||
9621 | ret_val = driver_for_each_device(&ixgbe_driver.driver, NULL, &event, | |
e8e9f696 | 9622 | __ixgbe_notify_dca); |
bd0362dd JC |
9623 | |
9624 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; | |
9625 | } | |
b453368d | 9626 | |
5dd2d332 | 9627 | #endif /* CONFIG_IXGBE_DCA */ |
849c4542 | 9628 | |
9a799d71 AK |
9629 | module_exit(ixgbe_exit_module); |
9630 | ||
9631 | /* ixgbe_main.c */ |