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Commit | Line | Data |
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e52c0f96 CW |
1 | /* Intel(R) Gigabit Ethernet Linux driver |
2 | * Copyright(c) 2007-2014 Intel Corporation. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms and conditions of the GNU General Public License, | |
6 | * version 2, as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, see <http://www.gnu.org/licenses/>. | |
15 | * | |
16 | * The full GNU General Public License is included in this distribution in | |
17 | * the file called "COPYING". | |
18 | * | |
19 | * Contact Information: | |
20 | * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
21 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
22 | */ | |
9d5c8243 | 23 | |
876d2d6f JK |
24 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
25 | ||
9d5c8243 AK |
26 | #include <linux/module.h> |
27 | #include <linux/types.h> | |
28 | #include <linux/init.h> | |
b2cb09b1 | 29 | #include <linux/bitops.h> |
9d5c8243 AK |
30 | #include <linux/vmalloc.h> |
31 | #include <linux/pagemap.h> | |
32 | #include <linux/netdevice.h> | |
9d5c8243 | 33 | #include <linux/ipv6.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
9d5c8243 AK |
35 | #include <net/checksum.h> |
36 | #include <net/ip6_checksum.h> | |
c6cb090b | 37 | #include <linux/net_tstamp.h> |
9d5c8243 AK |
38 | #include <linux/mii.h> |
39 | #include <linux/ethtool.h> | |
01789349 | 40 | #include <linux/if.h> |
9d5c8243 AK |
41 | #include <linux/if_vlan.h> |
42 | #include <linux/pci.h> | |
c54106bb | 43 | #include <linux/pci-aspm.h> |
9d5c8243 AK |
44 | #include <linux/delay.h> |
45 | #include <linux/interrupt.h> | |
7d13a7d0 AD |
46 | #include <linux/ip.h> |
47 | #include <linux/tcp.h> | |
48 | #include <linux/sctp.h> | |
9d5c8243 | 49 | #include <linux/if_ether.h> |
40a914fa | 50 | #include <linux/aer.h> |
70c71606 | 51 | #include <linux/prefetch.h> |
749ab2cd | 52 | #include <linux/pm_runtime.h> |
806ffb1d | 53 | #include <linux/etherdevice.h> |
421e02f0 | 54 | #ifdef CONFIG_IGB_DCA |
fe4506b6 JC |
55 | #include <linux/dca.h> |
56 | #endif | |
441fc6fd | 57 | #include <linux/i2c.h> |
9d5c8243 AK |
58 | #include "igb.h" |
59 | ||
67b1b903 | 60 | #define MAJ 5 |
0742337c | 61 | #define MIN 4 |
6fb46902 | 62 | #define BUILD 0 |
0d1fe82d | 63 | #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) "." \ |
929dd047 | 64 | __stringify(BUILD) "-k" |
9d5c8243 AK |
65 | char igb_driver_name[] = "igb"; |
66 | char igb_driver_version[] = DRV_VERSION; | |
67 | static const char igb_driver_string[] = | |
68 | "Intel(R) Gigabit Ethernet Network Driver"; | |
4b9ea462 | 69 | static const char igb_copyright[] = |
74cfb2e1 | 70 | "Copyright (c) 2007-2014 Intel Corporation."; |
9d5c8243 | 71 | |
9d5c8243 AK |
72 | static const struct e1000_info *igb_info_tbl[] = { |
73 | [board_82575] = &e1000_82575_info, | |
74 | }; | |
75 | ||
cd1631ce | 76 | static const struct pci_device_id igb_pci_tbl[] = { |
ceb5f13b CW |
77 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I354_BACKPLANE_1GBPS) }, |
78 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I354_SGMII) }, | |
79 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I354_BACKPLANE_2_5GBPS) }, | |
f96a8a0b CW |
80 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I211_COPPER), board_82575 }, |
81 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_COPPER), board_82575 }, | |
82 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_FIBER), board_82575 }, | |
83 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_SERDES), board_82575 }, | |
84 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_SGMII), board_82575 }, | |
53b87ce3 CW |
85 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_COPPER_FLASHLESS), board_82575 }, |
86 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_SERDES_FLASHLESS), board_82575 }, | |
d2ba2ed8 AD |
87 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_COPPER), board_82575 }, |
88 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_FIBER), board_82575 }, | |
89 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_SERDES), board_82575 }, | |
90 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_SGMII), board_82575 }, | |
55cac248 AD |
91 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER), board_82575 }, |
92 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_FIBER), board_82575 }, | |
6493d24f | 93 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_QUAD_FIBER), board_82575 }, |
55cac248 AD |
94 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SERDES), board_82575 }, |
95 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SGMII), board_82575 }, | |
96 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER_DUAL), board_82575 }, | |
308fb39a JG |
97 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SGMII), board_82575 }, |
98 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SERDES), board_82575 }, | |
1b5dda33 GJ |
99 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_BACKPLANE), board_82575 }, |
100 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SFP), board_82575 }, | |
2d064c06 | 101 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576), board_82575 }, |
9eb2341d | 102 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS), board_82575 }, |
747d49ba | 103 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS_SERDES), board_82575 }, |
2d064c06 AD |
104 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_FIBER), board_82575 }, |
105 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES), board_82575 }, | |
4703bf73 | 106 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES_QUAD), board_82575 }, |
b894fa26 | 107 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER_ET2), board_82575 }, |
c8ea5ea9 | 108 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER), board_82575 }, |
9d5c8243 AK |
109 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_COPPER), board_82575 }, |
110 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_FIBER_SERDES), board_82575 }, | |
111 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82575GB_QUAD_COPPER), board_82575 }, | |
d66696f3 | 112 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I354_SGMII), board_82575 }, |
9d5c8243 AK |
113 | /* required last entry */ |
114 | {0, } | |
115 | }; | |
116 | ||
117 | MODULE_DEVICE_TABLE(pci, igb_pci_tbl); | |
118 | ||
9d5c8243 AK |
119 | static int igb_setup_all_tx_resources(struct igb_adapter *); |
120 | static int igb_setup_all_rx_resources(struct igb_adapter *); | |
121 | static void igb_free_all_tx_resources(struct igb_adapter *); | |
122 | static void igb_free_all_rx_resources(struct igb_adapter *); | |
06cf2666 | 123 | static void igb_setup_mrqc(struct igb_adapter *); |
9d5c8243 | 124 | static int igb_probe(struct pci_dev *, const struct pci_device_id *); |
9f9a12f8 | 125 | static void igb_remove(struct pci_dev *pdev); |
9d5c8243 | 126 | static int igb_sw_init(struct igb_adapter *); |
46eafa59 SA |
127 | int igb_open(struct net_device *); |
128 | int igb_close(struct net_device *); | |
53c7d064 | 129 | static void igb_configure(struct igb_adapter *); |
9d5c8243 AK |
130 | static void igb_configure_tx(struct igb_adapter *); |
131 | static void igb_configure_rx(struct igb_adapter *); | |
9d5c8243 AK |
132 | static void igb_clean_all_tx_rings(struct igb_adapter *); |
133 | static void igb_clean_all_rx_rings(struct igb_adapter *); | |
3b644cf6 MW |
134 | static void igb_clean_tx_ring(struct igb_ring *); |
135 | static void igb_clean_rx_ring(struct igb_ring *); | |
ff41f8dc | 136 | static void igb_set_rx_mode(struct net_device *); |
9d5c8243 AK |
137 | static void igb_update_phy_info(unsigned long); |
138 | static void igb_watchdog(unsigned long); | |
139 | static void igb_watchdog_task(struct work_struct *); | |
cd392f5c | 140 | static netdev_tx_t igb_xmit_frame(struct sk_buff *skb, struct net_device *); |
12dcd86b | 141 | static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *dev, |
c502ea2e | 142 | struct rtnl_link_stats64 *stats); |
9d5c8243 AK |
143 | static int igb_change_mtu(struct net_device *, int); |
144 | static int igb_set_mac(struct net_device *, void *); | |
bf456abb | 145 | static void igb_set_uta(struct igb_adapter *adapter, bool set); |
9d5c8243 AK |
146 | static irqreturn_t igb_intr(int irq, void *); |
147 | static irqreturn_t igb_intr_msi(int irq, void *); | |
148 | static irqreturn_t igb_msix_other(int irq, void *); | |
047e0030 | 149 | static irqreturn_t igb_msix_ring(int irq, void *); |
421e02f0 | 150 | #ifdef CONFIG_IGB_DCA |
047e0030 | 151 | static void igb_update_dca(struct igb_q_vector *); |
fe4506b6 | 152 | static void igb_setup_dca(struct igb_adapter *); |
421e02f0 | 153 | #endif /* CONFIG_IGB_DCA */ |
661086df | 154 | static int igb_poll(struct napi_struct *, int); |
7f0ba845 | 155 | static bool igb_clean_tx_irq(struct igb_q_vector *, int); |
32b3e08f | 156 | static int igb_clean_rx_irq(struct igb_q_vector *, int); |
9d5c8243 AK |
157 | static int igb_ioctl(struct net_device *, struct ifreq *, int cmd); |
158 | static void igb_tx_timeout(struct net_device *); | |
159 | static void igb_reset_task(struct work_struct *); | |
c502ea2e CW |
160 | static void igb_vlan_mode(struct net_device *netdev, |
161 | netdev_features_t features); | |
80d5c368 PM |
162 | static int igb_vlan_rx_add_vid(struct net_device *, __be16, u16); |
163 | static int igb_vlan_rx_kill_vid(struct net_device *, __be16, u16); | |
9d5c8243 | 164 | static void igb_restore_vlan(struct igb_adapter *); |
26ad9178 | 165 | static void igb_rar_set_qsel(struct igb_adapter *, u8 *, u32 , u8); |
4ae196df AD |
166 | static void igb_ping_all_vfs(struct igb_adapter *); |
167 | static void igb_msg_task(struct igb_adapter *); | |
4ae196df | 168 | static void igb_vmm_control(struct igb_adapter *); |
f2ca0dbe | 169 | static int igb_set_vf_mac(struct igb_adapter *, int, unsigned char *); |
4ae196df | 170 | static void igb_restore_vf_multicasts(struct igb_adapter *adapter); |
8151d294 WM |
171 | static int igb_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac); |
172 | static int igb_ndo_set_vf_vlan(struct net_device *netdev, | |
79aab093 | 173 | int vf, u16 vlan, u8 qos, __be16 vlan_proto); |
ed616689 | 174 | static int igb_ndo_set_vf_bw(struct net_device *, int, int, int); |
70ea4783 LL |
175 | static int igb_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, |
176 | bool setting); | |
8151d294 WM |
177 | static int igb_ndo_get_vf_config(struct net_device *netdev, int vf, |
178 | struct ifla_vf_info *ivi); | |
17dc566c | 179 | static void igb_check_vf_rate_limit(struct igb_adapter *); |
0e71def2 GH |
180 | static void igb_nfc_filter_exit(struct igb_adapter *adapter); |
181 | static void igb_nfc_filter_restore(struct igb_adapter *adapter); | |
46a01698 RL |
182 | |
183 | #ifdef CONFIG_PCI_IOV | |
0224d663 | 184 | static int igb_vf_configure(struct igb_adapter *adapter, int vf); |
781798a1 | 185 | static int igb_pci_enable_sriov(struct pci_dev *dev, int num_vfs); |
ceee3450 TF |
186 | static int igb_disable_sriov(struct pci_dev *dev); |
187 | static int igb_pci_disable_sriov(struct pci_dev *dev); | |
46a01698 | 188 | #endif |
9d5c8243 | 189 | |
9d5c8243 | 190 | #ifdef CONFIG_PM |
d9dd966d | 191 | #ifdef CONFIG_PM_SLEEP |
749ab2cd | 192 | static int igb_suspend(struct device *); |
d9dd966d | 193 | #endif |
749ab2cd | 194 | static int igb_resume(struct device *); |
749ab2cd YZ |
195 | static int igb_runtime_suspend(struct device *dev); |
196 | static int igb_runtime_resume(struct device *dev); | |
197 | static int igb_runtime_idle(struct device *dev); | |
749ab2cd YZ |
198 | static const struct dev_pm_ops igb_pm_ops = { |
199 | SET_SYSTEM_SLEEP_PM_OPS(igb_suspend, igb_resume) | |
200 | SET_RUNTIME_PM_OPS(igb_runtime_suspend, igb_runtime_resume, | |
201 | igb_runtime_idle) | |
202 | }; | |
9d5c8243 AK |
203 | #endif |
204 | static void igb_shutdown(struct pci_dev *); | |
fa44f2f1 | 205 | static int igb_pci_sriov_configure(struct pci_dev *dev, int num_vfs); |
421e02f0 | 206 | #ifdef CONFIG_IGB_DCA |
fe4506b6 JC |
207 | static int igb_notify_dca(struct notifier_block *, unsigned long, void *); |
208 | static struct notifier_block dca_notifier = { | |
209 | .notifier_call = igb_notify_dca, | |
210 | .next = NULL, | |
211 | .priority = 0 | |
212 | }; | |
213 | #endif | |
9d5c8243 AK |
214 | #ifdef CONFIG_NET_POLL_CONTROLLER |
215 | /* for netdump / net console */ | |
216 | static void igb_netpoll(struct net_device *); | |
217 | #endif | |
37680117 | 218 | #ifdef CONFIG_PCI_IOV |
6dd6d2b7 | 219 | static unsigned int max_vfs; |
2a3abf6d | 220 | module_param(max_vfs, uint, 0); |
c75c4edf | 221 | MODULE_PARM_DESC(max_vfs, "Maximum number of virtual functions to allocate per physical function"); |
2a3abf6d AD |
222 | #endif /* CONFIG_PCI_IOV */ |
223 | ||
9d5c8243 AK |
224 | static pci_ers_result_t igb_io_error_detected(struct pci_dev *, |
225 | pci_channel_state_t); | |
226 | static pci_ers_result_t igb_io_slot_reset(struct pci_dev *); | |
227 | static void igb_io_resume(struct pci_dev *); | |
228 | ||
3646f0e5 | 229 | static const struct pci_error_handlers igb_err_handler = { |
9d5c8243 AK |
230 | .error_detected = igb_io_error_detected, |
231 | .slot_reset = igb_io_slot_reset, | |
232 | .resume = igb_io_resume, | |
233 | }; | |
234 | ||
b6e0c419 | 235 | static void igb_init_dmac(struct igb_adapter *adapter, u32 pba); |
9d5c8243 AK |
236 | |
237 | static struct pci_driver igb_driver = { | |
238 | .name = igb_driver_name, | |
239 | .id_table = igb_pci_tbl, | |
240 | .probe = igb_probe, | |
9f9a12f8 | 241 | .remove = igb_remove, |
9d5c8243 | 242 | #ifdef CONFIG_PM |
749ab2cd | 243 | .driver.pm = &igb_pm_ops, |
9d5c8243 AK |
244 | #endif |
245 | .shutdown = igb_shutdown, | |
fa44f2f1 | 246 | .sriov_configure = igb_pci_sriov_configure, |
9d5c8243 AK |
247 | .err_handler = &igb_err_handler |
248 | }; | |
249 | ||
250 | MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>"); | |
251 | MODULE_DESCRIPTION("Intel(R) Gigabit Ethernet Network Driver"); | |
252 | MODULE_LICENSE("GPL"); | |
253 | MODULE_VERSION(DRV_VERSION); | |
254 | ||
b3f4d599 | 255 | #define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) |
256 | static int debug = -1; | |
257 | module_param(debug, int, 0); | |
258 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
259 | ||
c97ec42a TI |
260 | struct igb_reg_info { |
261 | u32 ofs; | |
262 | char *name; | |
263 | }; | |
264 | ||
265 | static const struct igb_reg_info igb_reg_info_tbl[] = { | |
266 | ||
267 | /* General Registers */ | |
268 | {E1000_CTRL, "CTRL"}, | |
269 | {E1000_STATUS, "STATUS"}, | |
270 | {E1000_CTRL_EXT, "CTRL_EXT"}, | |
271 | ||
272 | /* Interrupt Registers */ | |
273 | {E1000_ICR, "ICR"}, | |
274 | ||
275 | /* RX Registers */ | |
276 | {E1000_RCTL, "RCTL"}, | |
277 | {E1000_RDLEN(0), "RDLEN"}, | |
278 | {E1000_RDH(0), "RDH"}, | |
279 | {E1000_RDT(0), "RDT"}, | |
280 | {E1000_RXDCTL(0), "RXDCTL"}, | |
281 | {E1000_RDBAL(0), "RDBAL"}, | |
282 | {E1000_RDBAH(0), "RDBAH"}, | |
283 | ||
284 | /* TX Registers */ | |
285 | {E1000_TCTL, "TCTL"}, | |
286 | {E1000_TDBAL(0), "TDBAL"}, | |
287 | {E1000_TDBAH(0), "TDBAH"}, | |
288 | {E1000_TDLEN(0), "TDLEN"}, | |
289 | {E1000_TDH(0), "TDH"}, | |
290 | {E1000_TDT(0), "TDT"}, | |
291 | {E1000_TXDCTL(0), "TXDCTL"}, | |
292 | {E1000_TDFH, "TDFH"}, | |
293 | {E1000_TDFT, "TDFT"}, | |
294 | {E1000_TDFHS, "TDFHS"}, | |
295 | {E1000_TDFPC, "TDFPC"}, | |
296 | ||
297 | /* List Terminator */ | |
298 | {} | |
299 | }; | |
300 | ||
b980ac18 | 301 | /* igb_regdump - register printout routine */ |
c97ec42a TI |
302 | static void igb_regdump(struct e1000_hw *hw, struct igb_reg_info *reginfo) |
303 | { | |
304 | int n = 0; | |
305 | char rname[16]; | |
306 | u32 regs[8]; | |
307 | ||
308 | switch (reginfo->ofs) { | |
309 | case E1000_RDLEN(0): | |
310 | for (n = 0; n < 4; n++) | |
311 | regs[n] = rd32(E1000_RDLEN(n)); | |
312 | break; | |
313 | case E1000_RDH(0): | |
314 | for (n = 0; n < 4; n++) | |
315 | regs[n] = rd32(E1000_RDH(n)); | |
316 | break; | |
317 | case E1000_RDT(0): | |
318 | for (n = 0; n < 4; n++) | |
319 | regs[n] = rd32(E1000_RDT(n)); | |
320 | break; | |
321 | case E1000_RXDCTL(0): | |
322 | for (n = 0; n < 4; n++) | |
323 | regs[n] = rd32(E1000_RXDCTL(n)); | |
324 | break; | |
325 | case E1000_RDBAL(0): | |
326 | for (n = 0; n < 4; n++) | |
327 | regs[n] = rd32(E1000_RDBAL(n)); | |
328 | break; | |
329 | case E1000_RDBAH(0): | |
330 | for (n = 0; n < 4; n++) | |
331 | regs[n] = rd32(E1000_RDBAH(n)); | |
332 | break; | |
333 | case E1000_TDBAL(0): | |
334 | for (n = 0; n < 4; n++) | |
335 | regs[n] = rd32(E1000_RDBAL(n)); | |
336 | break; | |
337 | case E1000_TDBAH(0): | |
338 | for (n = 0; n < 4; n++) | |
339 | regs[n] = rd32(E1000_TDBAH(n)); | |
340 | break; | |
341 | case E1000_TDLEN(0): | |
342 | for (n = 0; n < 4; n++) | |
343 | regs[n] = rd32(E1000_TDLEN(n)); | |
344 | break; | |
345 | case E1000_TDH(0): | |
346 | for (n = 0; n < 4; n++) | |
347 | regs[n] = rd32(E1000_TDH(n)); | |
348 | break; | |
349 | case E1000_TDT(0): | |
350 | for (n = 0; n < 4; n++) | |
351 | regs[n] = rd32(E1000_TDT(n)); | |
352 | break; | |
353 | case E1000_TXDCTL(0): | |
354 | for (n = 0; n < 4; n++) | |
355 | regs[n] = rd32(E1000_TXDCTL(n)); | |
356 | break; | |
357 | default: | |
876d2d6f | 358 | pr_info("%-15s %08x\n", reginfo->name, rd32(reginfo->ofs)); |
c97ec42a TI |
359 | return; |
360 | } | |
361 | ||
362 | snprintf(rname, 16, "%s%s", reginfo->name, "[0-3]"); | |
876d2d6f JK |
363 | pr_info("%-15s %08x %08x %08x %08x\n", rname, regs[0], regs[1], |
364 | regs[2], regs[3]); | |
c97ec42a TI |
365 | } |
366 | ||
b980ac18 | 367 | /* igb_dump - Print registers, Tx-rings and Rx-rings */ |
c97ec42a TI |
368 | static void igb_dump(struct igb_adapter *adapter) |
369 | { | |
370 | struct net_device *netdev = adapter->netdev; | |
371 | struct e1000_hw *hw = &adapter->hw; | |
372 | struct igb_reg_info *reginfo; | |
c97ec42a TI |
373 | struct igb_ring *tx_ring; |
374 | union e1000_adv_tx_desc *tx_desc; | |
375 | struct my_u0 { u64 a; u64 b; } *u0; | |
c97ec42a TI |
376 | struct igb_ring *rx_ring; |
377 | union e1000_adv_rx_desc *rx_desc; | |
378 | u32 staterr; | |
6ad4edfc | 379 | u16 i, n; |
c97ec42a TI |
380 | |
381 | if (!netif_msg_hw(adapter)) | |
382 | return; | |
383 | ||
384 | /* Print netdevice Info */ | |
385 | if (netdev) { | |
386 | dev_info(&adapter->pdev->dev, "Net device Info\n"); | |
c75c4edf | 387 | pr_info("Device Name state trans_start last_rx\n"); |
876d2d6f | 388 | pr_info("%-15s %016lX %016lX %016lX\n", netdev->name, |
4d0e9657 | 389 | netdev->state, dev_trans_start(netdev), netdev->last_rx); |
c97ec42a TI |
390 | } |
391 | ||
392 | /* Print Registers */ | |
393 | dev_info(&adapter->pdev->dev, "Register Dump\n"); | |
876d2d6f | 394 | pr_info(" Register Name Value\n"); |
c97ec42a TI |
395 | for (reginfo = (struct igb_reg_info *)igb_reg_info_tbl; |
396 | reginfo->name; reginfo++) { | |
397 | igb_regdump(hw, reginfo); | |
398 | } | |
399 | ||
400 | /* Print TX Ring Summary */ | |
401 | if (!netdev || !netif_running(netdev)) | |
402 | goto exit; | |
403 | ||
404 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); | |
876d2d6f | 405 | pr_info("Queue [NTU] [NTC] [bi(ntc)->dma ] leng ntw timestamp\n"); |
c97ec42a | 406 | for (n = 0; n < adapter->num_tx_queues; n++) { |
06034649 | 407 | struct igb_tx_buffer *buffer_info; |
c97ec42a | 408 | tx_ring = adapter->tx_ring[n]; |
06034649 | 409 | buffer_info = &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; |
876d2d6f JK |
410 | pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n", |
411 | n, tx_ring->next_to_use, tx_ring->next_to_clean, | |
c9f14bf3 AD |
412 | (u64)dma_unmap_addr(buffer_info, dma), |
413 | dma_unmap_len(buffer_info, len), | |
876d2d6f JK |
414 | buffer_info->next_to_watch, |
415 | (u64)buffer_info->time_stamp); | |
c97ec42a TI |
416 | } |
417 | ||
418 | /* Print TX Rings */ | |
419 | if (!netif_msg_tx_done(adapter)) | |
420 | goto rx_ring_summary; | |
421 | ||
422 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); | |
423 | ||
424 | /* Transmit Descriptor Formats | |
425 | * | |
426 | * Advanced Transmit Descriptor | |
427 | * +--------------------------------------------------------------+ | |
428 | * 0 | Buffer Address [63:0] | | |
429 | * +--------------------------------------------------------------+ | |
430 | * 8 | PAYLEN | PORTS |CC|IDX | STA | DCMD |DTYP|MAC|RSV| DTALEN | | |
431 | * +--------------------------------------------------------------+ | |
432 | * 63 46 45 40 39 38 36 35 32 31 24 15 0 | |
433 | */ | |
434 | ||
435 | for (n = 0; n < adapter->num_tx_queues; n++) { | |
436 | tx_ring = adapter->tx_ring[n]; | |
876d2d6f JK |
437 | pr_info("------------------------------------\n"); |
438 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); | |
439 | pr_info("------------------------------------\n"); | |
c75c4edf | 440 | pr_info("T [desc] [address 63:0 ] [PlPOCIStDDM Ln] [bi->dma ] leng ntw timestamp bi->skb\n"); |
c97ec42a TI |
441 | |
442 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { | |
876d2d6f | 443 | const char *next_desc; |
06034649 | 444 | struct igb_tx_buffer *buffer_info; |
60136906 | 445 | tx_desc = IGB_TX_DESC(tx_ring, i); |
06034649 | 446 | buffer_info = &tx_ring->tx_buffer_info[i]; |
c97ec42a | 447 | u0 = (struct my_u0 *)tx_desc; |
876d2d6f JK |
448 | if (i == tx_ring->next_to_use && |
449 | i == tx_ring->next_to_clean) | |
450 | next_desc = " NTC/U"; | |
451 | else if (i == tx_ring->next_to_use) | |
452 | next_desc = " NTU"; | |
453 | else if (i == tx_ring->next_to_clean) | |
454 | next_desc = " NTC"; | |
455 | else | |
456 | next_desc = ""; | |
457 | ||
c75c4edf CW |
458 | pr_info("T [0x%03X] %016llX %016llX %016llX %04X %p %016llX %p%s\n", |
459 | i, le64_to_cpu(u0->a), | |
c97ec42a | 460 | le64_to_cpu(u0->b), |
c9f14bf3 AD |
461 | (u64)dma_unmap_addr(buffer_info, dma), |
462 | dma_unmap_len(buffer_info, len), | |
c97ec42a TI |
463 | buffer_info->next_to_watch, |
464 | (u64)buffer_info->time_stamp, | |
876d2d6f | 465 | buffer_info->skb, next_desc); |
c97ec42a | 466 | |
b669588a | 467 | if (netif_msg_pktdata(adapter) && buffer_info->skb) |
c97ec42a TI |
468 | print_hex_dump(KERN_INFO, "", |
469 | DUMP_PREFIX_ADDRESS, | |
b669588a | 470 | 16, 1, buffer_info->skb->data, |
c9f14bf3 AD |
471 | dma_unmap_len(buffer_info, len), |
472 | true); | |
c97ec42a TI |
473 | } |
474 | } | |
475 | ||
476 | /* Print RX Rings Summary */ | |
477 | rx_ring_summary: | |
478 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); | |
876d2d6f | 479 | pr_info("Queue [NTU] [NTC]\n"); |
c97ec42a TI |
480 | for (n = 0; n < adapter->num_rx_queues; n++) { |
481 | rx_ring = adapter->rx_ring[n]; | |
876d2d6f JK |
482 | pr_info(" %5d %5X %5X\n", |
483 | n, rx_ring->next_to_use, rx_ring->next_to_clean); | |
c97ec42a TI |
484 | } |
485 | ||
486 | /* Print RX Rings */ | |
487 | if (!netif_msg_rx_status(adapter)) | |
488 | goto exit; | |
489 | ||
490 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); | |
491 | ||
492 | /* Advanced Receive Descriptor (Read) Format | |
493 | * 63 1 0 | |
494 | * +-----------------------------------------------------+ | |
495 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
496 | * +----------------------------------------------+------+ | |
497 | * 8 | Header Buffer Address [63:1] | DD | | |
498 | * +-----------------------------------------------------+ | |
499 | * | |
500 | * | |
501 | * Advanced Receive Descriptor (Write-Back) Format | |
502 | * | |
503 | * 63 48 47 32 31 30 21 20 17 16 4 3 0 | |
504 | * +------------------------------------------------------+ | |
505 | * 0 | Packet IP |SPH| HDR_LEN | RSV|Packet| RSS | | |
506 | * | Checksum Ident | | | | Type | Type | | |
507 | * +------------------------------------------------------+ | |
508 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | | |
509 | * +------------------------------------------------------+ | |
510 | * 63 48 47 32 31 20 19 0 | |
511 | */ | |
512 | ||
513 | for (n = 0; n < adapter->num_rx_queues; n++) { | |
514 | rx_ring = adapter->rx_ring[n]; | |
876d2d6f JK |
515 | pr_info("------------------------------------\n"); |
516 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); | |
517 | pr_info("------------------------------------\n"); | |
c75c4edf CW |
518 | pr_info("R [desc] [ PktBuf A0] [ HeadBuf DD] [bi->dma ] [bi->skb] <-- Adv Rx Read format\n"); |
519 | pr_info("RWB[desc] [PcsmIpSHl PtRs] [vl er S cks ln] ---------------- [bi->skb] <-- Adv Rx Write-Back format\n"); | |
c97ec42a TI |
520 | |
521 | for (i = 0; i < rx_ring->count; i++) { | |
876d2d6f | 522 | const char *next_desc; |
06034649 AD |
523 | struct igb_rx_buffer *buffer_info; |
524 | buffer_info = &rx_ring->rx_buffer_info[i]; | |
60136906 | 525 | rx_desc = IGB_RX_DESC(rx_ring, i); |
c97ec42a TI |
526 | u0 = (struct my_u0 *)rx_desc; |
527 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
876d2d6f JK |
528 | |
529 | if (i == rx_ring->next_to_use) | |
530 | next_desc = " NTU"; | |
531 | else if (i == rx_ring->next_to_clean) | |
532 | next_desc = " NTC"; | |
533 | else | |
534 | next_desc = ""; | |
535 | ||
c97ec42a TI |
536 | if (staterr & E1000_RXD_STAT_DD) { |
537 | /* Descriptor Done */ | |
1a1c225b AD |
538 | pr_info("%s[0x%03X] %016llX %016llX ---------------- %s\n", |
539 | "RWB", i, | |
c97ec42a TI |
540 | le64_to_cpu(u0->a), |
541 | le64_to_cpu(u0->b), | |
1a1c225b | 542 | next_desc); |
c97ec42a | 543 | } else { |
1a1c225b AD |
544 | pr_info("%s[0x%03X] %016llX %016llX %016llX %s\n", |
545 | "R ", i, | |
c97ec42a TI |
546 | le64_to_cpu(u0->a), |
547 | le64_to_cpu(u0->b), | |
548 | (u64)buffer_info->dma, | |
1a1c225b | 549 | next_desc); |
c97ec42a | 550 | |
b669588a | 551 | if (netif_msg_pktdata(adapter) && |
1a1c225b | 552 | buffer_info->dma && buffer_info->page) { |
44390ca6 AD |
553 | print_hex_dump(KERN_INFO, "", |
554 | DUMP_PREFIX_ADDRESS, | |
555 | 16, 1, | |
b669588a ET |
556 | page_address(buffer_info->page) + |
557 | buffer_info->page_offset, | |
de78d1f9 | 558 | IGB_RX_BUFSZ, true); |
c97ec42a TI |
559 | } |
560 | } | |
c97ec42a TI |
561 | } |
562 | } | |
563 | ||
564 | exit: | |
565 | return; | |
566 | } | |
567 | ||
b980ac18 JK |
568 | /** |
569 | * igb_get_i2c_data - Reads the I2C SDA data bit | |
441fc6fd CW |
570 | * @hw: pointer to hardware structure |
571 | * @i2cctl: Current value of I2CCTL register | |
572 | * | |
573 | * Returns the I2C data bit value | |
b980ac18 | 574 | **/ |
441fc6fd CW |
575 | static int igb_get_i2c_data(void *data) |
576 | { | |
577 | struct igb_adapter *adapter = (struct igb_adapter *)data; | |
578 | struct e1000_hw *hw = &adapter->hw; | |
579 | s32 i2cctl = rd32(E1000_I2CPARAMS); | |
580 | ||
da1f1dfe | 581 | return !!(i2cctl & E1000_I2C_DATA_IN); |
441fc6fd CW |
582 | } |
583 | ||
b980ac18 JK |
584 | /** |
585 | * igb_set_i2c_data - Sets the I2C data bit | |
441fc6fd CW |
586 | * @data: pointer to hardware structure |
587 | * @state: I2C data value (0 or 1) to set | |
588 | * | |
589 | * Sets the I2C data bit | |
b980ac18 | 590 | **/ |
441fc6fd CW |
591 | static void igb_set_i2c_data(void *data, int state) |
592 | { | |
593 | struct igb_adapter *adapter = (struct igb_adapter *)data; | |
594 | struct e1000_hw *hw = &adapter->hw; | |
595 | s32 i2cctl = rd32(E1000_I2CPARAMS); | |
596 | ||
597 | if (state) | |
598 | i2cctl |= E1000_I2C_DATA_OUT; | |
599 | else | |
600 | i2cctl &= ~E1000_I2C_DATA_OUT; | |
601 | ||
602 | i2cctl &= ~E1000_I2C_DATA_OE_N; | |
603 | i2cctl |= E1000_I2C_CLK_OE_N; | |
604 | wr32(E1000_I2CPARAMS, i2cctl); | |
605 | wrfl(); | |
606 | ||
607 | } | |
608 | ||
b980ac18 JK |
609 | /** |
610 | * igb_set_i2c_clk - Sets the I2C SCL clock | |
441fc6fd CW |
611 | * @data: pointer to hardware structure |
612 | * @state: state to set clock | |
613 | * | |
614 | * Sets the I2C clock line to state | |
b980ac18 | 615 | **/ |
441fc6fd CW |
616 | static void igb_set_i2c_clk(void *data, int state) |
617 | { | |
618 | struct igb_adapter *adapter = (struct igb_adapter *)data; | |
619 | struct e1000_hw *hw = &adapter->hw; | |
620 | s32 i2cctl = rd32(E1000_I2CPARAMS); | |
621 | ||
622 | if (state) { | |
623 | i2cctl |= E1000_I2C_CLK_OUT; | |
624 | i2cctl &= ~E1000_I2C_CLK_OE_N; | |
625 | } else { | |
626 | i2cctl &= ~E1000_I2C_CLK_OUT; | |
627 | i2cctl &= ~E1000_I2C_CLK_OE_N; | |
628 | } | |
629 | wr32(E1000_I2CPARAMS, i2cctl); | |
630 | wrfl(); | |
631 | } | |
632 | ||
b980ac18 JK |
633 | /** |
634 | * igb_get_i2c_clk - Gets the I2C SCL clock state | |
441fc6fd CW |
635 | * @data: pointer to hardware structure |
636 | * | |
637 | * Gets the I2C clock state | |
b980ac18 | 638 | **/ |
441fc6fd CW |
639 | static int igb_get_i2c_clk(void *data) |
640 | { | |
641 | struct igb_adapter *adapter = (struct igb_adapter *)data; | |
642 | struct e1000_hw *hw = &adapter->hw; | |
643 | s32 i2cctl = rd32(E1000_I2CPARAMS); | |
644 | ||
da1f1dfe | 645 | return !!(i2cctl & E1000_I2C_CLK_IN); |
441fc6fd CW |
646 | } |
647 | ||
648 | static const struct i2c_algo_bit_data igb_i2c_algo = { | |
649 | .setsda = igb_set_i2c_data, | |
650 | .setscl = igb_set_i2c_clk, | |
651 | .getsda = igb_get_i2c_data, | |
652 | .getscl = igb_get_i2c_clk, | |
653 | .udelay = 5, | |
654 | .timeout = 20, | |
655 | }; | |
656 | ||
9d5c8243 | 657 | /** |
b980ac18 JK |
658 | * igb_get_hw_dev - return device |
659 | * @hw: pointer to hardware structure | |
660 | * | |
661 | * used by hardware layer to print debugging information | |
9d5c8243 | 662 | **/ |
c041076a | 663 | struct net_device *igb_get_hw_dev(struct e1000_hw *hw) |
9d5c8243 AK |
664 | { |
665 | struct igb_adapter *adapter = hw->back; | |
c041076a | 666 | return adapter->netdev; |
9d5c8243 | 667 | } |
38c845c7 | 668 | |
9d5c8243 | 669 | /** |
b980ac18 | 670 | * igb_init_module - Driver Registration Routine |
9d5c8243 | 671 | * |
b980ac18 JK |
672 | * igb_init_module is the first routine called when the driver is |
673 | * loaded. All it does is register with the PCI subsystem. | |
9d5c8243 AK |
674 | **/ |
675 | static int __init igb_init_module(void) | |
676 | { | |
677 | int ret; | |
9005df38 | 678 | |
876d2d6f | 679 | pr_info("%s - version %s\n", |
9d5c8243 | 680 | igb_driver_string, igb_driver_version); |
876d2d6f | 681 | pr_info("%s\n", igb_copyright); |
9d5c8243 | 682 | |
421e02f0 | 683 | #ifdef CONFIG_IGB_DCA |
fe4506b6 JC |
684 | dca_register_notify(&dca_notifier); |
685 | #endif | |
bbd98fe4 | 686 | ret = pci_register_driver(&igb_driver); |
9d5c8243 AK |
687 | return ret; |
688 | } | |
689 | ||
690 | module_init(igb_init_module); | |
691 | ||
692 | /** | |
b980ac18 | 693 | * igb_exit_module - Driver Exit Cleanup Routine |
9d5c8243 | 694 | * |
b980ac18 JK |
695 | * igb_exit_module is called just before the driver is removed |
696 | * from memory. | |
9d5c8243 AK |
697 | **/ |
698 | static void __exit igb_exit_module(void) | |
699 | { | |
421e02f0 | 700 | #ifdef CONFIG_IGB_DCA |
fe4506b6 JC |
701 | dca_unregister_notify(&dca_notifier); |
702 | #endif | |
9d5c8243 AK |
703 | pci_unregister_driver(&igb_driver); |
704 | } | |
705 | ||
706 | module_exit(igb_exit_module); | |
707 | ||
26bc19ec AD |
708 | #define Q_IDX_82576(i) (((i & 0x1) << 3) + (i >> 1)) |
709 | /** | |
b980ac18 JK |
710 | * igb_cache_ring_register - Descriptor ring to register mapping |
711 | * @adapter: board private structure to initialize | |
26bc19ec | 712 | * |
b980ac18 JK |
713 | * Once we know the feature-set enabled for the device, we'll cache |
714 | * the register offset the descriptor ring is assigned to. | |
26bc19ec AD |
715 | **/ |
716 | static void igb_cache_ring_register(struct igb_adapter *adapter) | |
717 | { | |
ee1b9f06 | 718 | int i = 0, j = 0; |
047e0030 | 719 | u32 rbase_offset = adapter->vfs_allocated_count; |
26bc19ec AD |
720 | |
721 | switch (adapter->hw.mac.type) { | |
722 | case e1000_82576: | |
723 | /* The queues are allocated for virtualization such that VF 0 | |
724 | * is allocated queues 0 and 8, VF 1 queues 1 and 9, etc. | |
725 | * In order to avoid collision we start at the first free queue | |
726 | * and continue consuming queues in the same sequence | |
727 | */ | |
ee1b9f06 | 728 | if (adapter->vfs_allocated_count) { |
a99955fc | 729 | for (; i < adapter->rss_queues; i++) |
3025a446 | 730 | adapter->rx_ring[i]->reg_idx = rbase_offset + |
b980ac18 | 731 | Q_IDX_82576(i); |
ee1b9f06 | 732 | } |
b26141d4 | 733 | /* Fall through */ |
26bc19ec | 734 | case e1000_82575: |
55cac248 | 735 | case e1000_82580: |
d2ba2ed8 | 736 | case e1000_i350: |
ceb5f13b | 737 | case e1000_i354: |
f96a8a0b CW |
738 | case e1000_i210: |
739 | case e1000_i211: | |
b26141d4 | 740 | /* Fall through */ |
26bc19ec | 741 | default: |
ee1b9f06 | 742 | for (; i < adapter->num_rx_queues; i++) |
3025a446 | 743 | adapter->rx_ring[i]->reg_idx = rbase_offset + i; |
ee1b9f06 | 744 | for (; j < adapter->num_tx_queues; j++) |
3025a446 | 745 | adapter->tx_ring[j]->reg_idx = rbase_offset + j; |
26bc19ec AD |
746 | break; |
747 | } | |
748 | } | |
749 | ||
22a8b291 FT |
750 | u32 igb_rd32(struct e1000_hw *hw, u32 reg) |
751 | { | |
752 | struct igb_adapter *igb = container_of(hw, struct igb_adapter, hw); | |
753 | u8 __iomem *hw_addr = ACCESS_ONCE(hw->hw_addr); | |
754 | u32 value = 0; | |
755 | ||
756 | if (E1000_REMOVED(hw_addr)) | |
757 | return ~value; | |
758 | ||
759 | value = readl(&hw_addr[reg]); | |
760 | ||
761 | /* reads should not return all F's */ | |
762 | if (!(~value) && (!reg || !(~readl(hw_addr)))) { | |
763 | struct net_device *netdev = igb->netdev; | |
764 | hw->hw_addr = NULL; | |
765 | netif_device_detach(netdev); | |
766 | netdev_err(netdev, "PCIe link lost, device now detached\n"); | |
767 | } | |
768 | ||
769 | return value; | |
770 | } | |
771 | ||
4be000c8 AD |
772 | /** |
773 | * igb_write_ivar - configure ivar for given MSI-X vector | |
774 | * @hw: pointer to the HW structure | |
775 | * @msix_vector: vector number we are allocating to a given ring | |
776 | * @index: row index of IVAR register to write within IVAR table | |
777 | * @offset: column offset of in IVAR, should be multiple of 8 | |
778 | * | |
779 | * This function is intended to handle the writing of the IVAR register | |
780 | * for adapters 82576 and newer. The IVAR table consists of 2 columns, | |
781 | * each containing an cause allocation for an Rx and Tx ring, and a | |
782 | * variable number of rows depending on the number of queues supported. | |
783 | **/ | |
784 | static void igb_write_ivar(struct e1000_hw *hw, int msix_vector, | |
785 | int index, int offset) | |
786 | { | |
787 | u32 ivar = array_rd32(E1000_IVAR0, index); | |
788 | ||
789 | /* clear any bits that are currently set */ | |
790 | ivar &= ~((u32)0xFF << offset); | |
791 | ||
792 | /* write vector and valid bit */ | |
793 | ivar |= (msix_vector | E1000_IVAR_VALID) << offset; | |
794 | ||
795 | array_wr32(E1000_IVAR0, index, ivar); | |
796 | } | |
797 | ||
9d5c8243 | 798 | #define IGB_N0_QUEUE -1 |
047e0030 | 799 | static void igb_assign_vector(struct igb_q_vector *q_vector, int msix_vector) |
9d5c8243 | 800 | { |
047e0030 | 801 | struct igb_adapter *adapter = q_vector->adapter; |
9d5c8243 | 802 | struct e1000_hw *hw = &adapter->hw; |
047e0030 AD |
803 | int rx_queue = IGB_N0_QUEUE; |
804 | int tx_queue = IGB_N0_QUEUE; | |
4be000c8 | 805 | u32 msixbm = 0; |
047e0030 | 806 | |
0ba82994 AD |
807 | if (q_vector->rx.ring) |
808 | rx_queue = q_vector->rx.ring->reg_idx; | |
809 | if (q_vector->tx.ring) | |
810 | tx_queue = q_vector->tx.ring->reg_idx; | |
2d064c06 AD |
811 | |
812 | switch (hw->mac.type) { | |
813 | case e1000_82575: | |
9d5c8243 | 814 | /* The 82575 assigns vectors using a bitmask, which matches the |
b980ac18 JK |
815 | * bitmask for the EICR/EIMS/EIMC registers. To assign one |
816 | * or more queues to a vector, we write the appropriate bits | |
817 | * into the MSIXBM register for that vector. | |
818 | */ | |
047e0030 | 819 | if (rx_queue > IGB_N0_QUEUE) |
9d5c8243 | 820 | msixbm = E1000_EICR_RX_QUEUE0 << rx_queue; |
047e0030 | 821 | if (tx_queue > IGB_N0_QUEUE) |
9d5c8243 | 822 | msixbm |= E1000_EICR_TX_QUEUE0 << tx_queue; |
cd14ef54 | 823 | if (!(adapter->flags & IGB_FLAG_HAS_MSIX) && msix_vector == 0) |
feeb2721 | 824 | msixbm |= E1000_EIMS_OTHER; |
9d5c8243 | 825 | array_wr32(E1000_MSIXBM(0), msix_vector, msixbm); |
047e0030 | 826 | q_vector->eims_value = msixbm; |
2d064c06 AD |
827 | break; |
828 | case e1000_82576: | |
b980ac18 | 829 | /* 82576 uses a table that essentially consists of 2 columns |
4be000c8 AD |
830 | * with 8 rows. The ordering is column-major so we use the |
831 | * lower 3 bits as the row index, and the 4th bit as the | |
832 | * column offset. | |
833 | */ | |
834 | if (rx_queue > IGB_N0_QUEUE) | |
835 | igb_write_ivar(hw, msix_vector, | |
836 | rx_queue & 0x7, | |
837 | (rx_queue & 0x8) << 1); | |
838 | if (tx_queue > IGB_N0_QUEUE) | |
839 | igb_write_ivar(hw, msix_vector, | |
840 | tx_queue & 0x7, | |
841 | ((tx_queue & 0x8) << 1) + 8); | |
a51d8c21 | 842 | q_vector->eims_value = BIT(msix_vector); |
2d064c06 | 843 | break; |
55cac248 | 844 | case e1000_82580: |
d2ba2ed8 | 845 | case e1000_i350: |
ceb5f13b | 846 | case e1000_i354: |
f96a8a0b CW |
847 | case e1000_i210: |
848 | case e1000_i211: | |
b980ac18 | 849 | /* On 82580 and newer adapters the scheme is similar to 82576 |
4be000c8 AD |
850 | * however instead of ordering column-major we have things |
851 | * ordered row-major. So we traverse the table by using | |
852 | * bit 0 as the column offset, and the remaining bits as the | |
853 | * row index. | |
854 | */ | |
855 | if (rx_queue > IGB_N0_QUEUE) | |
856 | igb_write_ivar(hw, msix_vector, | |
857 | rx_queue >> 1, | |
858 | (rx_queue & 0x1) << 4); | |
859 | if (tx_queue > IGB_N0_QUEUE) | |
860 | igb_write_ivar(hw, msix_vector, | |
861 | tx_queue >> 1, | |
862 | ((tx_queue & 0x1) << 4) + 8); | |
a51d8c21 | 863 | q_vector->eims_value = BIT(msix_vector); |
55cac248 | 864 | break; |
2d064c06 AD |
865 | default: |
866 | BUG(); | |
867 | break; | |
868 | } | |
26b39276 AD |
869 | |
870 | /* add q_vector eims value to global eims_enable_mask */ | |
871 | adapter->eims_enable_mask |= q_vector->eims_value; | |
872 | ||
873 | /* configure q_vector to set itr on first interrupt */ | |
874 | q_vector->set_itr = 1; | |
9d5c8243 AK |
875 | } |
876 | ||
877 | /** | |
b980ac18 JK |
878 | * igb_configure_msix - Configure MSI-X hardware |
879 | * @adapter: board private structure to initialize | |
9d5c8243 | 880 | * |
b980ac18 JK |
881 | * igb_configure_msix sets up the hardware to properly |
882 | * generate MSI-X interrupts. | |
9d5c8243 AK |
883 | **/ |
884 | static void igb_configure_msix(struct igb_adapter *adapter) | |
885 | { | |
886 | u32 tmp; | |
887 | int i, vector = 0; | |
888 | struct e1000_hw *hw = &adapter->hw; | |
889 | ||
890 | adapter->eims_enable_mask = 0; | |
9d5c8243 AK |
891 | |
892 | /* set vector for other causes, i.e. link changes */ | |
2d064c06 AD |
893 | switch (hw->mac.type) { |
894 | case e1000_82575: | |
9d5c8243 AK |
895 | tmp = rd32(E1000_CTRL_EXT); |
896 | /* enable MSI-X PBA support*/ | |
897 | tmp |= E1000_CTRL_EXT_PBA_CLR; | |
898 | ||
899 | /* Auto-Mask interrupts upon ICR read. */ | |
900 | tmp |= E1000_CTRL_EXT_EIAME; | |
901 | tmp |= E1000_CTRL_EXT_IRCA; | |
902 | ||
903 | wr32(E1000_CTRL_EXT, tmp); | |
047e0030 AD |
904 | |
905 | /* enable msix_other interrupt */ | |
b980ac18 | 906 | array_wr32(E1000_MSIXBM(0), vector++, E1000_EIMS_OTHER); |
844290e5 | 907 | adapter->eims_other = E1000_EIMS_OTHER; |
9d5c8243 | 908 | |
2d064c06 AD |
909 | break; |
910 | ||
911 | case e1000_82576: | |
55cac248 | 912 | case e1000_82580: |
d2ba2ed8 | 913 | case e1000_i350: |
ceb5f13b | 914 | case e1000_i354: |
f96a8a0b CW |
915 | case e1000_i210: |
916 | case e1000_i211: | |
047e0030 | 917 | /* Turn on MSI-X capability first, or our settings |
b980ac18 JK |
918 | * won't stick. And it will take days to debug. |
919 | */ | |
047e0030 | 920 | wr32(E1000_GPIE, E1000_GPIE_MSIX_MODE | |
b980ac18 JK |
921 | E1000_GPIE_PBA | E1000_GPIE_EIAME | |
922 | E1000_GPIE_NSICR); | |
047e0030 AD |
923 | |
924 | /* enable msix_other interrupt */ | |
a51d8c21 | 925 | adapter->eims_other = BIT(vector); |
2d064c06 | 926 | tmp = (vector++ | E1000_IVAR_VALID) << 8; |
2d064c06 | 927 | |
047e0030 | 928 | wr32(E1000_IVAR_MISC, tmp); |
2d064c06 AD |
929 | break; |
930 | default: | |
931 | /* do nothing, since nothing else supports MSI-X */ | |
932 | break; | |
933 | } /* switch (hw->mac.type) */ | |
047e0030 AD |
934 | |
935 | adapter->eims_enable_mask |= adapter->eims_other; | |
936 | ||
26b39276 AD |
937 | for (i = 0; i < adapter->num_q_vectors; i++) |
938 | igb_assign_vector(adapter->q_vector[i], vector++); | |
047e0030 | 939 | |
9d5c8243 AK |
940 | wrfl(); |
941 | } | |
942 | ||
943 | /** | |
b980ac18 JK |
944 | * igb_request_msix - Initialize MSI-X interrupts |
945 | * @adapter: board private structure to initialize | |
9d5c8243 | 946 | * |
b980ac18 JK |
947 | * igb_request_msix allocates MSI-X vectors and requests interrupts from the |
948 | * kernel. | |
9d5c8243 AK |
949 | **/ |
950 | static int igb_request_msix(struct igb_adapter *adapter) | |
951 | { | |
952 | struct net_device *netdev = adapter->netdev; | |
52285b76 | 953 | int i, err = 0, vector = 0, free_vector = 0; |
9d5c8243 | 954 | |
047e0030 | 955 | err = request_irq(adapter->msix_entries[vector].vector, |
b980ac18 | 956 | igb_msix_other, 0, netdev->name, adapter); |
047e0030 | 957 | if (err) |
52285b76 | 958 | goto err_out; |
047e0030 AD |
959 | |
960 | for (i = 0; i < adapter->num_q_vectors; i++) { | |
961 | struct igb_q_vector *q_vector = adapter->q_vector[i]; | |
962 | ||
52285b76 SA |
963 | vector++; |
964 | ||
7b06a690 | 965 | q_vector->itr_register = adapter->io_addr + E1000_EITR(vector); |
047e0030 | 966 | |
0ba82994 | 967 | if (q_vector->rx.ring && q_vector->tx.ring) |
047e0030 | 968 | sprintf(q_vector->name, "%s-TxRx-%u", netdev->name, |
0ba82994 AD |
969 | q_vector->rx.ring->queue_index); |
970 | else if (q_vector->tx.ring) | |
047e0030 | 971 | sprintf(q_vector->name, "%s-tx-%u", netdev->name, |
0ba82994 AD |
972 | q_vector->tx.ring->queue_index); |
973 | else if (q_vector->rx.ring) | |
047e0030 | 974 | sprintf(q_vector->name, "%s-rx-%u", netdev->name, |
0ba82994 | 975 | q_vector->rx.ring->queue_index); |
9d5c8243 | 976 | else |
047e0030 AD |
977 | sprintf(q_vector->name, "%s-unused", netdev->name); |
978 | ||
9d5c8243 | 979 | err = request_irq(adapter->msix_entries[vector].vector, |
b980ac18 JK |
980 | igb_msix_ring, 0, q_vector->name, |
981 | q_vector); | |
9d5c8243 | 982 | if (err) |
52285b76 | 983 | goto err_free; |
9d5c8243 AK |
984 | } |
985 | ||
9d5c8243 AK |
986 | igb_configure_msix(adapter); |
987 | return 0; | |
52285b76 SA |
988 | |
989 | err_free: | |
990 | /* free already assigned IRQs */ | |
991 | free_irq(adapter->msix_entries[free_vector++].vector, adapter); | |
992 | ||
993 | vector--; | |
994 | for (i = 0; i < vector; i++) { | |
995 | free_irq(adapter->msix_entries[free_vector++].vector, | |
996 | adapter->q_vector[i]); | |
997 | } | |
998 | err_out: | |
9d5c8243 AK |
999 | return err; |
1000 | } | |
1001 | ||
5536d210 | 1002 | /** |
b980ac18 JK |
1003 | * igb_free_q_vector - Free memory allocated for specific interrupt vector |
1004 | * @adapter: board private structure to initialize | |
1005 | * @v_idx: Index of vector to be freed | |
5536d210 | 1006 | * |
02ef6e1d | 1007 | * This function frees the memory allocated to the q_vector. |
5536d210 AD |
1008 | **/ |
1009 | static void igb_free_q_vector(struct igb_adapter *adapter, int v_idx) | |
1010 | { | |
1011 | struct igb_q_vector *q_vector = adapter->q_vector[v_idx]; | |
1012 | ||
02ef6e1d CW |
1013 | adapter->q_vector[v_idx] = NULL; |
1014 | ||
1015 | /* igb_get_stats64() might access the rings on this vector, | |
1016 | * we must wait a grace period before freeing it. | |
1017 | */ | |
17a402a0 CW |
1018 | if (q_vector) |
1019 | kfree_rcu(q_vector, rcu); | |
02ef6e1d CW |
1020 | } |
1021 | ||
1022 | /** | |
1023 | * igb_reset_q_vector - Reset config for interrupt vector | |
1024 | * @adapter: board private structure to initialize | |
1025 | * @v_idx: Index of vector to be reset | |
1026 | * | |
1027 | * If NAPI is enabled it will delete any references to the | |
1028 | * NAPI struct. This is preparation for igb_free_q_vector. | |
1029 | **/ | |
1030 | static void igb_reset_q_vector(struct igb_adapter *adapter, int v_idx) | |
1031 | { | |
1032 | struct igb_q_vector *q_vector = adapter->q_vector[v_idx]; | |
1033 | ||
cb06d102 CP |
1034 | /* Coming from igb_set_interrupt_capability, the vectors are not yet |
1035 | * allocated. So, q_vector is NULL so we should stop here. | |
1036 | */ | |
1037 | if (!q_vector) | |
1038 | return; | |
1039 | ||
5536d210 AD |
1040 | if (q_vector->tx.ring) |
1041 | adapter->tx_ring[q_vector->tx.ring->queue_index] = NULL; | |
1042 | ||
1043 | if (q_vector->rx.ring) | |
2439fc4d | 1044 | adapter->rx_ring[q_vector->rx.ring->queue_index] = NULL; |
5536d210 | 1045 | |
5536d210 AD |
1046 | netif_napi_del(&q_vector->napi); |
1047 | ||
02ef6e1d CW |
1048 | } |
1049 | ||
1050 | static void igb_reset_interrupt_capability(struct igb_adapter *adapter) | |
1051 | { | |
1052 | int v_idx = adapter->num_q_vectors; | |
1053 | ||
cd14ef54 | 1054 | if (adapter->flags & IGB_FLAG_HAS_MSIX) |
02ef6e1d | 1055 | pci_disable_msix(adapter->pdev); |
cd14ef54 | 1056 | else if (adapter->flags & IGB_FLAG_HAS_MSI) |
02ef6e1d | 1057 | pci_disable_msi(adapter->pdev); |
02ef6e1d CW |
1058 | |
1059 | while (v_idx--) | |
1060 | igb_reset_q_vector(adapter, v_idx); | |
5536d210 AD |
1061 | } |
1062 | ||
047e0030 | 1063 | /** |
b980ac18 JK |
1064 | * igb_free_q_vectors - Free memory allocated for interrupt vectors |
1065 | * @adapter: board private structure to initialize | |
047e0030 | 1066 | * |
b980ac18 JK |
1067 | * This function frees the memory allocated to the q_vectors. In addition if |
1068 | * NAPI is enabled it will delete any references to the NAPI struct prior | |
1069 | * to freeing the q_vector. | |
047e0030 AD |
1070 | **/ |
1071 | static void igb_free_q_vectors(struct igb_adapter *adapter) | |
1072 | { | |
5536d210 AD |
1073 | int v_idx = adapter->num_q_vectors; |
1074 | ||
1075 | adapter->num_tx_queues = 0; | |
1076 | adapter->num_rx_queues = 0; | |
047e0030 | 1077 | adapter->num_q_vectors = 0; |
5536d210 | 1078 | |
02ef6e1d CW |
1079 | while (v_idx--) { |
1080 | igb_reset_q_vector(adapter, v_idx); | |
5536d210 | 1081 | igb_free_q_vector(adapter, v_idx); |
02ef6e1d | 1082 | } |
047e0030 AD |
1083 | } |
1084 | ||
1085 | /** | |
b980ac18 JK |
1086 | * igb_clear_interrupt_scheme - reset the device to a state of no interrupts |
1087 | * @adapter: board private structure to initialize | |
047e0030 | 1088 | * |
b980ac18 JK |
1089 | * This function resets the device so that it has 0 Rx queues, Tx queues, and |
1090 | * MSI-X interrupts allocated. | |
047e0030 AD |
1091 | */ |
1092 | static void igb_clear_interrupt_scheme(struct igb_adapter *adapter) | |
1093 | { | |
047e0030 AD |
1094 | igb_free_q_vectors(adapter); |
1095 | igb_reset_interrupt_capability(adapter); | |
1096 | } | |
9d5c8243 AK |
1097 | |
1098 | /** | |
b980ac18 JK |
1099 | * igb_set_interrupt_capability - set MSI or MSI-X if supported |
1100 | * @adapter: board private structure to initialize | |
1101 | * @msix: boolean value of MSIX capability | |
9d5c8243 | 1102 | * |
b980ac18 JK |
1103 | * Attempt to configure interrupts using the best available |
1104 | * capabilities of the hardware and kernel. | |
9d5c8243 | 1105 | **/ |
53c7d064 | 1106 | static void igb_set_interrupt_capability(struct igb_adapter *adapter, bool msix) |
9d5c8243 AK |
1107 | { |
1108 | int err; | |
1109 | int numvecs, i; | |
1110 | ||
53c7d064 SA |
1111 | if (!msix) |
1112 | goto msi_only; | |
cd14ef54 | 1113 | adapter->flags |= IGB_FLAG_HAS_MSIX; |
53c7d064 | 1114 | |
83b7180d | 1115 | /* Number of supported queues. */ |
a99955fc | 1116 | adapter->num_rx_queues = adapter->rss_queues; |
5fa8517f GR |
1117 | if (adapter->vfs_allocated_count) |
1118 | adapter->num_tx_queues = 1; | |
1119 | else | |
1120 | adapter->num_tx_queues = adapter->rss_queues; | |
83b7180d | 1121 | |
b980ac18 | 1122 | /* start with one vector for every Rx queue */ |
047e0030 AD |
1123 | numvecs = adapter->num_rx_queues; |
1124 | ||
b980ac18 | 1125 | /* if Tx handler is separate add 1 for every Tx queue */ |
a99955fc AD |
1126 | if (!(adapter->flags & IGB_FLAG_QUEUE_PAIRS)) |
1127 | numvecs += adapter->num_tx_queues; | |
047e0030 AD |
1128 | |
1129 | /* store the number of vectors reserved for queues */ | |
1130 | adapter->num_q_vectors = numvecs; | |
1131 | ||
1132 | /* add 1 vector for link status interrupts */ | |
1133 | numvecs++; | |
9d5c8243 AK |
1134 | for (i = 0; i < numvecs; i++) |
1135 | adapter->msix_entries[i].entry = i; | |
1136 | ||
479d02df AG |
1137 | err = pci_enable_msix_range(adapter->pdev, |
1138 | adapter->msix_entries, | |
1139 | numvecs, | |
1140 | numvecs); | |
1141 | if (err > 0) | |
0c2cc02e | 1142 | return; |
9d5c8243 AK |
1143 | |
1144 | igb_reset_interrupt_capability(adapter); | |
1145 | ||
1146 | /* If we can't do MSI-X, try MSI */ | |
1147 | msi_only: | |
b709323d | 1148 | adapter->flags &= ~IGB_FLAG_HAS_MSIX; |
2a3abf6d AD |
1149 | #ifdef CONFIG_PCI_IOV |
1150 | /* disable SR-IOV for non MSI-X configurations */ | |
1151 | if (adapter->vf_data) { | |
1152 | struct e1000_hw *hw = &adapter->hw; | |
1153 | /* disable iov and allow time for transactions to clear */ | |
1154 | pci_disable_sriov(adapter->pdev); | |
1155 | msleep(500); | |
1156 | ||
1157 | kfree(adapter->vf_data); | |
1158 | adapter->vf_data = NULL; | |
1159 | wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ); | |
945a5151 | 1160 | wrfl(); |
2a3abf6d AD |
1161 | msleep(100); |
1162 | dev_info(&adapter->pdev->dev, "IOV Disabled\n"); | |
1163 | } | |
1164 | #endif | |
4fc82adf | 1165 | adapter->vfs_allocated_count = 0; |
a99955fc | 1166 | adapter->rss_queues = 1; |
4fc82adf | 1167 | adapter->flags |= IGB_FLAG_QUEUE_PAIRS; |
9d5c8243 | 1168 | adapter->num_rx_queues = 1; |
661086df | 1169 | adapter->num_tx_queues = 1; |
047e0030 | 1170 | adapter->num_q_vectors = 1; |
9d5c8243 | 1171 | if (!pci_enable_msi(adapter->pdev)) |
7dfc16fa | 1172 | adapter->flags |= IGB_FLAG_HAS_MSI; |
9d5c8243 AK |
1173 | } |
1174 | ||
5536d210 AD |
1175 | static void igb_add_ring(struct igb_ring *ring, |
1176 | struct igb_ring_container *head) | |
1177 | { | |
1178 | head->ring = ring; | |
1179 | head->count++; | |
1180 | } | |
1181 | ||
047e0030 | 1182 | /** |
b980ac18 JK |
1183 | * igb_alloc_q_vector - Allocate memory for a single interrupt vector |
1184 | * @adapter: board private structure to initialize | |
1185 | * @v_count: q_vectors allocated on adapter, used for ring interleaving | |
1186 | * @v_idx: index of vector in adapter struct | |
1187 | * @txr_count: total number of Tx rings to allocate | |
1188 | * @txr_idx: index of first Tx ring to allocate | |
1189 | * @rxr_count: total number of Rx rings to allocate | |
1190 | * @rxr_idx: index of first Rx ring to allocate | |
047e0030 | 1191 | * |
b980ac18 | 1192 | * We allocate one q_vector. If allocation fails we return -ENOMEM. |
047e0030 | 1193 | **/ |
5536d210 AD |
1194 | static int igb_alloc_q_vector(struct igb_adapter *adapter, |
1195 | int v_count, int v_idx, | |
1196 | int txr_count, int txr_idx, | |
1197 | int rxr_count, int rxr_idx) | |
047e0030 AD |
1198 | { |
1199 | struct igb_q_vector *q_vector; | |
5536d210 AD |
1200 | struct igb_ring *ring; |
1201 | int ring_count, size; | |
047e0030 | 1202 | |
5536d210 AD |
1203 | /* igb only supports 1 Tx and/or 1 Rx queue per vector */ |
1204 | if (txr_count > 1 || rxr_count > 1) | |
1205 | return -ENOMEM; | |
1206 | ||
1207 | ring_count = txr_count + rxr_count; | |
1208 | size = sizeof(struct igb_q_vector) + | |
1209 | (sizeof(struct igb_ring) * ring_count); | |
1210 | ||
1211 | /* allocate q_vector and rings */ | |
02ef6e1d | 1212 | q_vector = adapter->q_vector[v_idx]; |
72ddef05 | 1213 | if (!q_vector) { |
02ef6e1d | 1214 | q_vector = kzalloc(size, GFP_KERNEL); |
72ddef05 SS |
1215 | } else if (size > ksize(q_vector)) { |
1216 | kfree_rcu(q_vector, rcu); | |
1217 | q_vector = kzalloc(size, GFP_KERNEL); | |
1218 | } else { | |
c0a06ee1 | 1219 | memset(q_vector, 0, size); |
72ddef05 | 1220 | } |
5536d210 AD |
1221 | if (!q_vector) |
1222 | return -ENOMEM; | |
1223 | ||
1224 | /* initialize NAPI */ | |
1225 | netif_napi_add(adapter->netdev, &q_vector->napi, | |
1226 | igb_poll, 64); | |
1227 | ||
1228 | /* tie q_vector and adapter together */ | |
1229 | adapter->q_vector[v_idx] = q_vector; | |
1230 | q_vector->adapter = adapter; | |
1231 | ||
1232 | /* initialize work limits */ | |
1233 | q_vector->tx.work_limit = adapter->tx_work_limit; | |
1234 | ||
1235 | /* initialize ITR configuration */ | |
7b06a690 | 1236 | q_vector->itr_register = adapter->io_addr + E1000_EITR(0); |
5536d210 AD |
1237 | q_vector->itr_val = IGB_START_ITR; |
1238 | ||
1239 | /* initialize pointer to rings */ | |
1240 | ring = q_vector->ring; | |
1241 | ||
4e227667 AD |
1242 | /* intialize ITR */ |
1243 | if (rxr_count) { | |
1244 | /* rx or rx/tx vector */ | |
1245 | if (!adapter->rx_itr_setting || adapter->rx_itr_setting > 3) | |
1246 | q_vector->itr_val = adapter->rx_itr_setting; | |
1247 | } else { | |
1248 | /* tx only vector */ | |
1249 | if (!adapter->tx_itr_setting || adapter->tx_itr_setting > 3) | |
1250 | q_vector->itr_val = adapter->tx_itr_setting; | |
1251 | } | |
1252 | ||
5536d210 AD |
1253 | if (txr_count) { |
1254 | /* assign generic ring traits */ | |
1255 | ring->dev = &adapter->pdev->dev; | |
1256 | ring->netdev = adapter->netdev; | |
1257 | ||
1258 | /* configure backlink on ring */ | |
1259 | ring->q_vector = q_vector; | |
1260 | ||
1261 | /* update q_vector Tx values */ | |
1262 | igb_add_ring(ring, &q_vector->tx); | |
1263 | ||
1264 | /* For 82575, context index must be unique per ring. */ | |
1265 | if (adapter->hw.mac.type == e1000_82575) | |
1266 | set_bit(IGB_RING_FLAG_TX_CTX_IDX, &ring->flags); | |
1267 | ||
1268 | /* apply Tx specific ring traits */ | |
1269 | ring->count = adapter->tx_ring_count; | |
1270 | ring->queue_index = txr_idx; | |
1271 | ||
827da44c JS |
1272 | u64_stats_init(&ring->tx_syncp); |
1273 | u64_stats_init(&ring->tx_syncp2); | |
1274 | ||
5536d210 AD |
1275 | /* assign ring to adapter */ |
1276 | adapter->tx_ring[txr_idx] = ring; | |
1277 | ||
1278 | /* push pointer to next ring */ | |
1279 | ring++; | |
047e0030 | 1280 | } |
81c2fc22 | 1281 | |
5536d210 AD |
1282 | if (rxr_count) { |
1283 | /* assign generic ring traits */ | |
1284 | ring->dev = &adapter->pdev->dev; | |
1285 | ring->netdev = adapter->netdev; | |
047e0030 | 1286 | |
5536d210 AD |
1287 | /* configure backlink on ring */ |
1288 | ring->q_vector = q_vector; | |
047e0030 | 1289 | |
5536d210 AD |
1290 | /* update q_vector Rx values */ |
1291 | igb_add_ring(ring, &q_vector->rx); | |
047e0030 | 1292 | |
5536d210 AD |
1293 | /* set flag indicating ring supports SCTP checksum offload */ |
1294 | if (adapter->hw.mac.type >= e1000_82576) | |
1295 | set_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags); | |
047e0030 | 1296 | |
e52c0f96 | 1297 | /* On i350, i354, i210, and i211, loopback VLAN packets |
5536d210 | 1298 | * have the tag byte-swapped. |
b980ac18 | 1299 | */ |
5536d210 AD |
1300 | if (adapter->hw.mac.type >= e1000_i350) |
1301 | set_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &ring->flags); | |
047e0030 | 1302 | |
5536d210 AD |
1303 | /* apply Rx specific ring traits */ |
1304 | ring->count = adapter->rx_ring_count; | |
1305 | ring->queue_index = rxr_idx; | |
1306 | ||
827da44c JS |
1307 | u64_stats_init(&ring->rx_syncp); |
1308 | ||
5536d210 AD |
1309 | /* assign ring to adapter */ |
1310 | adapter->rx_ring[rxr_idx] = ring; | |
1311 | } | |
1312 | ||
1313 | return 0; | |
047e0030 AD |
1314 | } |
1315 | ||
5536d210 | 1316 | |
047e0030 | 1317 | /** |
b980ac18 JK |
1318 | * igb_alloc_q_vectors - Allocate memory for interrupt vectors |
1319 | * @adapter: board private structure to initialize | |
047e0030 | 1320 | * |
b980ac18 JK |
1321 | * We allocate one q_vector per queue interrupt. If allocation fails we |
1322 | * return -ENOMEM. | |
047e0030 | 1323 | **/ |
5536d210 | 1324 | static int igb_alloc_q_vectors(struct igb_adapter *adapter) |
047e0030 | 1325 | { |
5536d210 AD |
1326 | int q_vectors = adapter->num_q_vectors; |
1327 | int rxr_remaining = adapter->num_rx_queues; | |
1328 | int txr_remaining = adapter->num_tx_queues; | |
1329 | int rxr_idx = 0, txr_idx = 0, v_idx = 0; | |
1330 | int err; | |
047e0030 | 1331 | |
5536d210 AD |
1332 | if (q_vectors >= (rxr_remaining + txr_remaining)) { |
1333 | for (; rxr_remaining; v_idx++) { | |
1334 | err = igb_alloc_q_vector(adapter, q_vectors, v_idx, | |
1335 | 0, 0, 1, rxr_idx); | |
047e0030 | 1336 | |
5536d210 AD |
1337 | if (err) |
1338 | goto err_out; | |
1339 | ||
1340 | /* update counts and index */ | |
1341 | rxr_remaining--; | |
1342 | rxr_idx++; | |
047e0030 | 1343 | } |
047e0030 | 1344 | } |
5536d210 AD |
1345 | |
1346 | for (; v_idx < q_vectors; v_idx++) { | |
1347 | int rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - v_idx); | |
1348 | int tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - v_idx); | |
9005df38 | 1349 | |
5536d210 AD |
1350 | err = igb_alloc_q_vector(adapter, q_vectors, v_idx, |
1351 | tqpv, txr_idx, rqpv, rxr_idx); | |
1352 | ||
1353 | if (err) | |
1354 | goto err_out; | |
1355 | ||
1356 | /* update counts and index */ | |
1357 | rxr_remaining -= rqpv; | |
1358 | txr_remaining -= tqpv; | |
1359 | rxr_idx++; | |
1360 | txr_idx++; | |
1361 | } | |
1362 | ||
047e0030 | 1363 | return 0; |
5536d210 AD |
1364 | |
1365 | err_out: | |
1366 | adapter->num_tx_queues = 0; | |
1367 | adapter->num_rx_queues = 0; | |
1368 | adapter->num_q_vectors = 0; | |
1369 | ||
1370 | while (v_idx--) | |
1371 | igb_free_q_vector(adapter, v_idx); | |
1372 | ||
1373 | return -ENOMEM; | |
047e0030 AD |
1374 | } |
1375 | ||
1376 | /** | |
b980ac18 JK |
1377 | * igb_init_interrupt_scheme - initialize interrupts, allocate queues/vectors |
1378 | * @adapter: board private structure to initialize | |
1379 | * @msix: boolean value of MSIX capability | |
047e0030 | 1380 | * |
b980ac18 | 1381 | * This function initializes the interrupts and allocates all of the queues. |
047e0030 | 1382 | **/ |
53c7d064 | 1383 | static int igb_init_interrupt_scheme(struct igb_adapter *adapter, bool msix) |
047e0030 AD |
1384 | { |
1385 | struct pci_dev *pdev = adapter->pdev; | |
1386 | int err; | |
1387 | ||
53c7d064 | 1388 | igb_set_interrupt_capability(adapter, msix); |
047e0030 AD |
1389 | |
1390 | err = igb_alloc_q_vectors(adapter); | |
1391 | if (err) { | |
1392 | dev_err(&pdev->dev, "Unable to allocate memory for vectors\n"); | |
1393 | goto err_alloc_q_vectors; | |
1394 | } | |
1395 | ||
5536d210 | 1396 | igb_cache_ring_register(adapter); |
047e0030 AD |
1397 | |
1398 | return 0; | |
5536d210 | 1399 | |
047e0030 AD |
1400 | err_alloc_q_vectors: |
1401 | igb_reset_interrupt_capability(adapter); | |
1402 | return err; | |
1403 | } | |
1404 | ||
9d5c8243 | 1405 | /** |
b980ac18 JK |
1406 | * igb_request_irq - initialize interrupts |
1407 | * @adapter: board private structure to initialize | |
9d5c8243 | 1408 | * |
b980ac18 JK |
1409 | * Attempts to configure interrupts using the best available |
1410 | * capabilities of the hardware and kernel. | |
9d5c8243 AK |
1411 | **/ |
1412 | static int igb_request_irq(struct igb_adapter *adapter) | |
1413 | { | |
1414 | struct net_device *netdev = adapter->netdev; | |
047e0030 | 1415 | struct pci_dev *pdev = adapter->pdev; |
9d5c8243 AK |
1416 | int err = 0; |
1417 | ||
cd14ef54 | 1418 | if (adapter->flags & IGB_FLAG_HAS_MSIX) { |
9d5c8243 | 1419 | err = igb_request_msix(adapter); |
844290e5 | 1420 | if (!err) |
9d5c8243 | 1421 | goto request_done; |
9d5c8243 | 1422 | /* fall back to MSI */ |
5536d210 AD |
1423 | igb_free_all_tx_resources(adapter); |
1424 | igb_free_all_rx_resources(adapter); | |
53c7d064 | 1425 | |
047e0030 | 1426 | igb_clear_interrupt_scheme(adapter); |
53c7d064 SA |
1427 | err = igb_init_interrupt_scheme(adapter, false); |
1428 | if (err) | |
047e0030 | 1429 | goto request_done; |
53c7d064 | 1430 | |
047e0030 AD |
1431 | igb_setup_all_tx_resources(adapter); |
1432 | igb_setup_all_rx_resources(adapter); | |
53c7d064 | 1433 | igb_configure(adapter); |
9d5c8243 | 1434 | } |
844290e5 | 1435 | |
c74d588e AD |
1436 | igb_assign_vector(adapter->q_vector[0], 0); |
1437 | ||
7dfc16fa | 1438 | if (adapter->flags & IGB_FLAG_HAS_MSI) { |
c74d588e | 1439 | err = request_irq(pdev->irq, igb_intr_msi, 0, |
047e0030 | 1440 | netdev->name, adapter); |
9d5c8243 AK |
1441 | if (!err) |
1442 | goto request_done; | |
047e0030 | 1443 | |
9d5c8243 AK |
1444 | /* fall back to legacy interrupts */ |
1445 | igb_reset_interrupt_capability(adapter); | |
7dfc16fa | 1446 | adapter->flags &= ~IGB_FLAG_HAS_MSI; |
9d5c8243 AK |
1447 | } |
1448 | ||
c74d588e | 1449 | err = request_irq(pdev->irq, igb_intr, IRQF_SHARED, |
047e0030 | 1450 | netdev->name, adapter); |
9d5c8243 | 1451 | |
6cb5e577 | 1452 | if (err) |
c74d588e | 1453 | dev_err(&pdev->dev, "Error %d getting interrupt\n", |
9d5c8243 | 1454 | err); |
9d5c8243 AK |
1455 | |
1456 | request_done: | |
1457 | return err; | |
1458 | } | |
1459 | ||
1460 | static void igb_free_irq(struct igb_adapter *adapter) | |
1461 | { | |
cd14ef54 | 1462 | if (adapter->flags & IGB_FLAG_HAS_MSIX) { |
9d5c8243 AK |
1463 | int vector = 0, i; |
1464 | ||
047e0030 | 1465 | free_irq(adapter->msix_entries[vector++].vector, adapter); |
9d5c8243 | 1466 | |
0d1ae7f4 | 1467 | for (i = 0; i < adapter->num_q_vectors; i++) |
047e0030 | 1468 | free_irq(adapter->msix_entries[vector++].vector, |
0d1ae7f4 | 1469 | adapter->q_vector[i]); |
047e0030 AD |
1470 | } else { |
1471 | free_irq(adapter->pdev->irq, adapter); | |
9d5c8243 | 1472 | } |
9d5c8243 AK |
1473 | } |
1474 | ||
1475 | /** | |
b980ac18 JK |
1476 | * igb_irq_disable - Mask off interrupt generation on the NIC |
1477 | * @adapter: board private structure | |
9d5c8243 AK |
1478 | **/ |
1479 | static void igb_irq_disable(struct igb_adapter *adapter) | |
1480 | { | |
1481 | struct e1000_hw *hw = &adapter->hw; | |
1482 | ||
b980ac18 | 1483 | /* we need to be careful when disabling interrupts. The VFs are also |
25568a53 AD |
1484 | * mapped into these registers and so clearing the bits can cause |
1485 | * issues on the VF drivers so we only need to clear what we set | |
1486 | */ | |
cd14ef54 | 1487 | if (adapter->flags & IGB_FLAG_HAS_MSIX) { |
2dfd1212 | 1488 | u32 regval = rd32(E1000_EIAM); |
9005df38 | 1489 | |
2dfd1212 AD |
1490 | wr32(E1000_EIAM, regval & ~adapter->eims_enable_mask); |
1491 | wr32(E1000_EIMC, adapter->eims_enable_mask); | |
1492 | regval = rd32(E1000_EIAC); | |
1493 | wr32(E1000_EIAC, regval & ~adapter->eims_enable_mask); | |
9d5c8243 | 1494 | } |
844290e5 PW |
1495 | |
1496 | wr32(E1000_IAM, 0); | |
9d5c8243 AK |
1497 | wr32(E1000_IMC, ~0); |
1498 | wrfl(); | |
cd14ef54 | 1499 | if (adapter->flags & IGB_FLAG_HAS_MSIX) { |
81a61859 | 1500 | int i; |
9005df38 | 1501 | |
81a61859 ET |
1502 | for (i = 0; i < adapter->num_q_vectors; i++) |
1503 | synchronize_irq(adapter->msix_entries[i].vector); | |
1504 | } else { | |
1505 | synchronize_irq(adapter->pdev->irq); | |
1506 | } | |
9d5c8243 AK |
1507 | } |
1508 | ||
1509 | /** | |
b980ac18 JK |
1510 | * igb_irq_enable - Enable default interrupt generation settings |
1511 | * @adapter: board private structure | |
9d5c8243 AK |
1512 | **/ |
1513 | static void igb_irq_enable(struct igb_adapter *adapter) | |
1514 | { | |
1515 | struct e1000_hw *hw = &adapter->hw; | |
1516 | ||
cd14ef54 | 1517 | if (adapter->flags & IGB_FLAG_HAS_MSIX) { |
06218a8d | 1518 | u32 ims = E1000_IMS_LSC | E1000_IMS_DOUTSYNC | E1000_IMS_DRSTA; |
2dfd1212 | 1519 | u32 regval = rd32(E1000_EIAC); |
9005df38 | 1520 | |
2dfd1212 AD |
1521 | wr32(E1000_EIAC, regval | adapter->eims_enable_mask); |
1522 | regval = rd32(E1000_EIAM); | |
1523 | wr32(E1000_EIAM, regval | adapter->eims_enable_mask); | |
844290e5 | 1524 | wr32(E1000_EIMS, adapter->eims_enable_mask); |
25568a53 | 1525 | if (adapter->vfs_allocated_count) { |
4ae196df | 1526 | wr32(E1000_MBVFIMR, 0xFF); |
25568a53 AD |
1527 | ims |= E1000_IMS_VMMB; |
1528 | } | |
1529 | wr32(E1000_IMS, ims); | |
844290e5 | 1530 | } else { |
55cac248 AD |
1531 | wr32(E1000_IMS, IMS_ENABLE_MASK | |
1532 | E1000_IMS_DRSTA); | |
1533 | wr32(E1000_IAM, IMS_ENABLE_MASK | | |
1534 | E1000_IMS_DRSTA); | |
844290e5 | 1535 | } |
9d5c8243 AK |
1536 | } |
1537 | ||
1538 | static void igb_update_mng_vlan(struct igb_adapter *adapter) | |
1539 | { | |
51466239 | 1540 | struct e1000_hw *hw = &adapter->hw; |
8b77c6b2 | 1541 | u16 pf_id = adapter->vfs_allocated_count; |
9d5c8243 AK |
1542 | u16 vid = adapter->hw.mng_cookie.vlan_id; |
1543 | u16 old_vid = adapter->mng_vlan_id; | |
51466239 AD |
1544 | |
1545 | if (hw->mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN) { | |
1546 | /* add VID to filter table */ | |
8b77c6b2 | 1547 | igb_vfta_set(hw, vid, pf_id, true, true); |
51466239 AD |
1548 | adapter->mng_vlan_id = vid; |
1549 | } else { | |
1550 | adapter->mng_vlan_id = IGB_MNG_VLAN_NONE; | |
1551 | } | |
1552 | ||
1553 | if ((old_vid != (u16)IGB_MNG_VLAN_NONE) && | |
1554 | (vid != old_vid) && | |
b2cb09b1 | 1555 | !test_bit(old_vid, adapter->active_vlans)) { |
51466239 | 1556 | /* remove VID from filter table */ |
8b77c6b2 | 1557 | igb_vfta_set(hw, vid, pf_id, false, true); |
9d5c8243 AK |
1558 | } |
1559 | } | |
1560 | ||
1561 | /** | |
b980ac18 JK |
1562 | * igb_release_hw_control - release control of the h/w to f/w |
1563 | * @adapter: address of board private structure | |
9d5c8243 | 1564 | * |
b980ac18 JK |
1565 | * igb_release_hw_control resets CTRL_EXT:DRV_LOAD bit. |
1566 | * For ASF and Pass Through versions of f/w this means that the | |
1567 | * driver is no longer loaded. | |
9d5c8243 AK |
1568 | **/ |
1569 | static void igb_release_hw_control(struct igb_adapter *adapter) | |
1570 | { | |
1571 | struct e1000_hw *hw = &adapter->hw; | |
1572 | u32 ctrl_ext; | |
1573 | ||
1574 | /* Let firmware take over control of h/w */ | |
1575 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
1576 | wr32(E1000_CTRL_EXT, | |
1577 | ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD); | |
1578 | } | |
1579 | ||
9d5c8243 | 1580 | /** |
b980ac18 JK |
1581 | * igb_get_hw_control - get control of the h/w from f/w |
1582 | * @adapter: address of board private structure | |
9d5c8243 | 1583 | * |
b980ac18 JK |
1584 | * igb_get_hw_control sets CTRL_EXT:DRV_LOAD bit. |
1585 | * For ASF and Pass Through versions of f/w this means that | |
1586 | * the driver is loaded. | |
9d5c8243 AK |
1587 | **/ |
1588 | static void igb_get_hw_control(struct igb_adapter *adapter) | |
1589 | { | |
1590 | struct e1000_hw *hw = &adapter->hw; | |
1591 | u32 ctrl_ext; | |
1592 | ||
1593 | /* Let firmware know the driver has taken over */ | |
1594 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
1595 | wr32(E1000_CTRL_EXT, | |
1596 | ctrl_ext | E1000_CTRL_EXT_DRV_LOAD); | |
1597 | } | |
1598 | ||
9d5c8243 | 1599 | /** |
b980ac18 JK |
1600 | * igb_configure - configure the hardware for RX and TX |
1601 | * @adapter: private board structure | |
9d5c8243 AK |
1602 | **/ |
1603 | static void igb_configure(struct igb_adapter *adapter) | |
1604 | { | |
1605 | struct net_device *netdev = adapter->netdev; | |
1606 | int i; | |
1607 | ||
1608 | igb_get_hw_control(adapter); | |
ff41f8dc | 1609 | igb_set_rx_mode(netdev); |
9d5c8243 AK |
1610 | |
1611 | igb_restore_vlan(adapter); | |
9d5c8243 | 1612 | |
85b430b4 | 1613 | igb_setup_tctl(adapter); |
06cf2666 | 1614 | igb_setup_mrqc(adapter); |
9d5c8243 | 1615 | igb_setup_rctl(adapter); |
85b430b4 | 1616 | |
0e71def2 | 1617 | igb_nfc_filter_restore(adapter); |
85b430b4 | 1618 | igb_configure_tx(adapter); |
9d5c8243 | 1619 | igb_configure_rx(adapter); |
662d7205 AD |
1620 | |
1621 | igb_rx_fifo_flush_82575(&adapter->hw); | |
1622 | ||
c493ea45 | 1623 | /* call igb_desc_unused which always leaves |
9d5c8243 | 1624 | * at least 1 descriptor unused to make sure |
b980ac18 JK |
1625 | * next_to_use != next_to_clean |
1626 | */ | |
9d5c8243 | 1627 | for (i = 0; i < adapter->num_rx_queues; i++) { |
3025a446 | 1628 | struct igb_ring *ring = adapter->rx_ring[i]; |
cd392f5c | 1629 | igb_alloc_rx_buffers(ring, igb_desc_unused(ring)); |
9d5c8243 | 1630 | } |
9d5c8243 AK |
1631 | } |
1632 | ||
88a268c1 | 1633 | /** |
b980ac18 JK |
1634 | * igb_power_up_link - Power up the phy/serdes link |
1635 | * @adapter: address of board private structure | |
88a268c1 NN |
1636 | **/ |
1637 | void igb_power_up_link(struct igb_adapter *adapter) | |
1638 | { | |
76886596 AA |
1639 | igb_reset_phy(&adapter->hw); |
1640 | ||
88a268c1 NN |
1641 | if (adapter->hw.phy.media_type == e1000_media_type_copper) |
1642 | igb_power_up_phy_copper(&adapter->hw); | |
1643 | else | |
1644 | igb_power_up_serdes_link_82575(&adapter->hw); | |
aec653c4 TF |
1645 | |
1646 | igb_setup_link(&adapter->hw); | |
88a268c1 NN |
1647 | } |
1648 | ||
1649 | /** | |
b980ac18 JK |
1650 | * igb_power_down_link - Power down the phy/serdes link |
1651 | * @adapter: address of board private structure | |
88a268c1 NN |
1652 | */ |
1653 | static void igb_power_down_link(struct igb_adapter *adapter) | |
1654 | { | |
1655 | if (adapter->hw.phy.media_type == e1000_media_type_copper) | |
1656 | igb_power_down_phy_copper_82575(&adapter->hw); | |
1657 | else | |
1658 | igb_shutdown_serdes_link_82575(&adapter->hw); | |
1659 | } | |
9d5c8243 | 1660 | |
56cec249 CW |
1661 | /** |
1662 | * Detect and switch function for Media Auto Sense | |
1663 | * @adapter: address of the board private structure | |
1664 | **/ | |
1665 | static void igb_check_swap_media(struct igb_adapter *adapter) | |
1666 | { | |
1667 | struct e1000_hw *hw = &adapter->hw; | |
1668 | u32 ctrl_ext, connsw; | |
1669 | bool swap_now = false; | |
1670 | ||
1671 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
1672 | connsw = rd32(E1000_CONNSW); | |
1673 | ||
1674 | /* need to live swap if current media is copper and we have fiber/serdes | |
1675 | * to go to. | |
1676 | */ | |
1677 | ||
1678 | if ((hw->phy.media_type == e1000_media_type_copper) && | |
1679 | (!(connsw & E1000_CONNSW_AUTOSENSE_EN))) { | |
1680 | swap_now = true; | |
1681 | } else if (!(connsw & E1000_CONNSW_SERDESD)) { | |
1682 | /* copper signal takes time to appear */ | |
1683 | if (adapter->copper_tries < 4) { | |
1684 | adapter->copper_tries++; | |
1685 | connsw |= E1000_CONNSW_AUTOSENSE_CONF; | |
1686 | wr32(E1000_CONNSW, connsw); | |
1687 | return; | |
1688 | } else { | |
1689 | adapter->copper_tries = 0; | |
1690 | if ((connsw & E1000_CONNSW_PHYSD) && | |
1691 | (!(connsw & E1000_CONNSW_PHY_PDN))) { | |
1692 | swap_now = true; | |
1693 | connsw &= ~E1000_CONNSW_AUTOSENSE_CONF; | |
1694 | wr32(E1000_CONNSW, connsw); | |
1695 | } | |
1696 | } | |
1697 | } | |
1698 | ||
1699 | if (!swap_now) | |
1700 | return; | |
1701 | ||
1702 | switch (hw->phy.media_type) { | |
1703 | case e1000_media_type_copper: | |
1704 | netdev_info(adapter->netdev, | |
1705 | "MAS: changing media to fiber/serdes\n"); | |
1706 | ctrl_ext |= | |
1707 | E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES; | |
1708 | adapter->flags |= IGB_FLAG_MEDIA_RESET; | |
1709 | adapter->copper_tries = 0; | |
1710 | break; | |
1711 | case e1000_media_type_internal_serdes: | |
1712 | case e1000_media_type_fiber: | |
1713 | netdev_info(adapter->netdev, | |
1714 | "MAS: changing media to copper\n"); | |
1715 | ctrl_ext &= | |
1716 | ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES; | |
1717 | adapter->flags |= IGB_FLAG_MEDIA_RESET; | |
1718 | break; | |
1719 | default: | |
1720 | /* shouldn't get here during regular operation */ | |
1721 | netdev_err(adapter->netdev, | |
1722 | "AMS: Invalid media type found, returning\n"); | |
1723 | break; | |
1724 | } | |
1725 | wr32(E1000_CTRL_EXT, ctrl_ext); | |
1726 | } | |
1727 | ||
9d5c8243 | 1728 | /** |
b980ac18 JK |
1729 | * igb_up - Open the interface and prepare it to handle traffic |
1730 | * @adapter: board private structure | |
9d5c8243 | 1731 | **/ |
9d5c8243 AK |
1732 | int igb_up(struct igb_adapter *adapter) |
1733 | { | |
1734 | struct e1000_hw *hw = &adapter->hw; | |
1735 | int i; | |
1736 | ||
1737 | /* hardware has been reset, we need to reload some things */ | |
1738 | igb_configure(adapter); | |
1739 | ||
1740 | clear_bit(__IGB_DOWN, &adapter->state); | |
1741 | ||
0d1ae7f4 AD |
1742 | for (i = 0; i < adapter->num_q_vectors; i++) |
1743 | napi_enable(&(adapter->q_vector[i]->napi)); | |
1744 | ||
cd14ef54 | 1745 | if (adapter->flags & IGB_FLAG_HAS_MSIX) |
9d5c8243 | 1746 | igb_configure_msix(adapter); |
feeb2721 AD |
1747 | else |
1748 | igb_assign_vector(adapter->q_vector[0], 0); | |
9d5c8243 AK |
1749 | |
1750 | /* Clear any pending interrupts. */ | |
1751 | rd32(E1000_ICR); | |
1752 | igb_irq_enable(adapter); | |
1753 | ||
d4960307 AD |
1754 | /* notify VFs that reset has been completed */ |
1755 | if (adapter->vfs_allocated_count) { | |
1756 | u32 reg_data = rd32(E1000_CTRL_EXT); | |
9005df38 | 1757 | |
d4960307 AD |
1758 | reg_data |= E1000_CTRL_EXT_PFRSTD; |
1759 | wr32(E1000_CTRL_EXT, reg_data); | |
1760 | } | |
1761 | ||
4cb9be7a JB |
1762 | netif_tx_start_all_queues(adapter->netdev); |
1763 | ||
25568a53 AD |
1764 | /* start the watchdog. */ |
1765 | hw->mac.get_link_status = 1; | |
1766 | schedule_work(&adapter->watchdog_task); | |
1767 | ||
f4c01e96 CW |
1768 | if ((adapter->flags & IGB_FLAG_EEE) && |
1769 | (!hw->dev_spec._82575.eee_disable)) | |
1770 | adapter->eee_advert = MDIO_EEE_100TX | MDIO_EEE_1000T; | |
1771 | ||
9d5c8243 AK |
1772 | return 0; |
1773 | } | |
1774 | ||
1775 | void igb_down(struct igb_adapter *adapter) | |
1776 | { | |
9d5c8243 | 1777 | struct net_device *netdev = adapter->netdev; |
330a6d6a | 1778 | struct e1000_hw *hw = &adapter->hw; |
9d5c8243 AK |
1779 | u32 tctl, rctl; |
1780 | int i; | |
1781 | ||
1782 | /* signal that we're down so the interrupt handler does not | |
b980ac18 JK |
1783 | * reschedule our watchdog timer |
1784 | */ | |
9d5c8243 AK |
1785 | set_bit(__IGB_DOWN, &adapter->state); |
1786 | ||
1787 | /* disable receives in the hardware */ | |
1788 | rctl = rd32(E1000_RCTL); | |
1789 | wr32(E1000_RCTL, rctl & ~E1000_RCTL_EN); | |
1790 | /* flush and sleep below */ | |
1791 | ||
f28ea083 | 1792 | netif_carrier_off(netdev); |
fd2ea0a7 | 1793 | netif_tx_stop_all_queues(netdev); |
9d5c8243 AK |
1794 | |
1795 | /* disable transmits in the hardware */ | |
1796 | tctl = rd32(E1000_TCTL); | |
1797 | tctl &= ~E1000_TCTL_EN; | |
1798 | wr32(E1000_TCTL, tctl); | |
1799 | /* flush both disables and wait for them to finish */ | |
1800 | wrfl(); | |
0d451e79 | 1801 | usleep_range(10000, 11000); |
9d5c8243 | 1802 | |
41f149a2 CW |
1803 | igb_irq_disable(adapter); |
1804 | ||
aa9b8cc4 AA |
1805 | adapter->flags &= ~IGB_FLAG_NEED_LINK_UPDATE; |
1806 | ||
41f149a2 | 1807 | for (i = 0; i < adapter->num_q_vectors; i++) { |
17a402a0 CW |
1808 | if (adapter->q_vector[i]) { |
1809 | napi_synchronize(&adapter->q_vector[i]->napi); | |
1810 | napi_disable(&adapter->q_vector[i]->napi); | |
1811 | } | |
41f149a2 | 1812 | } |
9d5c8243 | 1813 | |
9d5c8243 AK |
1814 | del_timer_sync(&adapter->watchdog_timer); |
1815 | del_timer_sync(&adapter->phy_info_timer); | |
1816 | ||
04fe6358 | 1817 | /* record the stats before reset*/ |
12dcd86b ED |
1818 | spin_lock(&adapter->stats64_lock); |
1819 | igb_update_stats(adapter, &adapter->stats64); | |
1820 | spin_unlock(&adapter->stats64_lock); | |
04fe6358 | 1821 | |
9d5c8243 AK |
1822 | adapter->link_speed = 0; |
1823 | adapter->link_duplex = 0; | |
1824 | ||
3023682e JK |
1825 | if (!pci_channel_offline(adapter->pdev)) |
1826 | igb_reset(adapter); | |
16903caa AD |
1827 | |
1828 | /* clear VLAN promisc flag so VFTA will be updated if necessary */ | |
1829 | adapter->flags &= ~IGB_FLAG_VLAN_PROMISC; | |
1830 | ||
9d5c8243 AK |
1831 | igb_clean_all_tx_rings(adapter); |
1832 | igb_clean_all_rx_rings(adapter); | |
7e0e99ef AD |
1833 | #ifdef CONFIG_IGB_DCA |
1834 | ||
1835 | /* since we reset the hardware DCA settings were cleared */ | |
1836 | igb_setup_dca(adapter); | |
1837 | #endif | |
9d5c8243 AK |
1838 | } |
1839 | ||
1840 | void igb_reinit_locked(struct igb_adapter *adapter) | |
1841 | { | |
1842 | WARN_ON(in_interrupt()); | |
1843 | while (test_and_set_bit(__IGB_RESETTING, &adapter->state)) | |
0d451e79 | 1844 | usleep_range(1000, 2000); |
9d5c8243 AK |
1845 | igb_down(adapter); |
1846 | igb_up(adapter); | |
1847 | clear_bit(__IGB_RESETTING, &adapter->state); | |
1848 | } | |
1849 | ||
56cec249 CW |
1850 | /** igb_enable_mas - Media Autosense re-enable after swap |
1851 | * | |
1852 | * @adapter: adapter struct | |
1853 | **/ | |
8cfb879d | 1854 | static void igb_enable_mas(struct igb_adapter *adapter) |
56cec249 CW |
1855 | { |
1856 | struct e1000_hw *hw = &adapter->hw; | |
8cfb879d | 1857 | u32 connsw = rd32(E1000_CONNSW); |
56cec249 CW |
1858 | |
1859 | /* configure for SerDes media detect */ | |
8cfb879d TF |
1860 | if ((hw->phy.media_type == e1000_media_type_copper) && |
1861 | (!(connsw & E1000_CONNSW_SERDESD))) { | |
56cec249 CW |
1862 | connsw |= E1000_CONNSW_ENRGSRC; |
1863 | connsw |= E1000_CONNSW_AUTOSENSE_EN; | |
1864 | wr32(E1000_CONNSW, connsw); | |
1865 | wrfl(); | |
56cec249 | 1866 | } |
56cec249 CW |
1867 | } |
1868 | ||
9d5c8243 AK |
1869 | void igb_reset(struct igb_adapter *adapter) |
1870 | { | |
090b1795 | 1871 | struct pci_dev *pdev = adapter->pdev; |
9d5c8243 | 1872 | struct e1000_hw *hw = &adapter->hw; |
2d064c06 AD |
1873 | struct e1000_mac_info *mac = &hw->mac; |
1874 | struct e1000_fc_info *fc = &hw->fc; | |
45693bcb | 1875 | u32 pba, hwm; |
9d5c8243 AK |
1876 | |
1877 | /* Repartition Pba for greater than 9k mtu | |
1878 | * To take effect CTRL.RST is required. | |
1879 | */ | |
fa4dfae0 | 1880 | switch (mac->type) { |
d2ba2ed8 | 1881 | case e1000_i350: |
ceb5f13b | 1882 | case e1000_i354: |
55cac248 AD |
1883 | case e1000_82580: |
1884 | pba = rd32(E1000_RXPBS); | |
1885 | pba = igb_rxpbs_adjust_82580(pba); | |
1886 | break; | |
fa4dfae0 | 1887 | case e1000_82576: |
d249be54 AD |
1888 | pba = rd32(E1000_RXPBS); |
1889 | pba &= E1000_RXPBS_SIZE_MASK_82576; | |
fa4dfae0 AD |
1890 | break; |
1891 | case e1000_82575: | |
f96a8a0b CW |
1892 | case e1000_i210: |
1893 | case e1000_i211: | |
fa4dfae0 AD |
1894 | default: |
1895 | pba = E1000_PBA_34K; | |
1896 | break; | |
2d064c06 | 1897 | } |
9d5c8243 | 1898 | |
45693bcb AD |
1899 | if (mac->type == e1000_82575) { |
1900 | u32 min_rx_space, min_tx_space, needed_tx_space; | |
1901 | ||
1902 | /* write Rx PBA so that hardware can report correct Tx PBA */ | |
9d5c8243 AK |
1903 | wr32(E1000_PBA, pba); |
1904 | ||
1905 | /* To maintain wire speed transmits, the Tx FIFO should be | |
1906 | * large enough to accommodate two full transmit packets, | |
1907 | * rounded up to the next 1KB and expressed in KB. Likewise, | |
1908 | * the Rx FIFO should be large enough to accommodate at least | |
1909 | * one full receive packet and is similarly rounded up and | |
b980ac18 JK |
1910 | * expressed in KB. |
1911 | */ | |
45693bcb AD |
1912 | min_rx_space = DIV_ROUND_UP(MAX_JUMBO_FRAME_SIZE, 1024); |
1913 | ||
1914 | /* The Tx FIFO also stores 16 bytes of information about the Tx | |
1915 | * but don't include Ethernet FCS because hardware appends it. | |
1916 | * We only need to round down to the nearest 512 byte block | |
1917 | * count since the value we care about is 2 frames, not 1. | |
b980ac18 | 1918 | */ |
45693bcb AD |
1919 | min_tx_space = adapter->max_frame_size; |
1920 | min_tx_space += sizeof(union e1000_adv_tx_desc) - ETH_FCS_LEN; | |
1921 | min_tx_space = DIV_ROUND_UP(min_tx_space, 512); | |
1922 | ||
1923 | /* upper 16 bits has Tx packet buffer allocation size in KB */ | |
1924 | needed_tx_space = min_tx_space - (rd32(E1000_PBA) >> 16); | |
9d5c8243 AK |
1925 | |
1926 | /* If current Tx allocation is less than the min Tx FIFO size, | |
1927 | * and the min Tx FIFO size is less than the current Rx FIFO | |
45693bcb | 1928 | * allocation, take space away from current Rx allocation. |
b980ac18 | 1929 | */ |
45693bcb AD |
1930 | if (needed_tx_space < pba) { |
1931 | pba -= needed_tx_space; | |
9d5c8243 | 1932 | |
b980ac18 JK |
1933 | /* if short on Rx space, Rx wins and must trump Tx |
1934 | * adjustment | |
1935 | */ | |
9d5c8243 AK |
1936 | if (pba < min_rx_space) |
1937 | pba = min_rx_space; | |
1938 | } | |
45693bcb AD |
1939 | |
1940 | /* adjust PBA for jumbo frames */ | |
2d064c06 | 1941 | wr32(E1000_PBA, pba); |
9d5c8243 | 1942 | } |
9d5c8243 | 1943 | |
45693bcb AD |
1944 | /* flow control settings |
1945 | * The high water mark must be low enough to fit one full frame | |
1946 | * after transmitting the pause frame. As such we must have enough | |
1947 | * space to allow for us to complete our current transmit and then | |
1948 | * receive the frame that is in progress from the link partner. | |
1949 | * Set it to: | |
1950 | * - the full Rx FIFO size minus one full Tx plus one full Rx frame | |
b980ac18 | 1951 | */ |
45693bcb | 1952 | hwm = (pba << 10) - (adapter->max_frame_size + MAX_JUMBO_FRAME_SIZE); |
9d5c8243 | 1953 | |
d48507fe | 1954 | fc->high_water = hwm & 0xFFFFFFF0; /* 16-byte granularity */ |
d405ea3e | 1955 | fc->low_water = fc->high_water - 16; |
9d5c8243 AK |
1956 | fc->pause_time = 0xFFFF; |
1957 | fc->send_xon = 1; | |
0cce119a | 1958 | fc->current_mode = fc->requested_mode; |
9d5c8243 | 1959 | |
4ae196df AD |
1960 | /* disable receive for all VFs and wait one second */ |
1961 | if (adapter->vfs_allocated_count) { | |
1962 | int i; | |
9005df38 | 1963 | |
4ae196df | 1964 | for (i = 0 ; i < adapter->vfs_allocated_count; i++) |
8fa7e0f7 | 1965 | adapter->vf_data[i].flags &= IGB_VF_FLAG_PF_SET_MAC; |
4ae196df AD |
1966 | |
1967 | /* ping all the active vfs to let them know we are going down */ | |
f2ca0dbe | 1968 | igb_ping_all_vfs(adapter); |
4ae196df AD |
1969 | |
1970 | /* disable transmits and receives */ | |
1971 | wr32(E1000_VFRE, 0); | |
1972 | wr32(E1000_VFTE, 0); | |
1973 | } | |
1974 | ||
9d5c8243 | 1975 | /* Allow time for pending master requests to run */ |
330a6d6a | 1976 | hw->mac.ops.reset_hw(hw); |
9d5c8243 AK |
1977 | wr32(E1000_WUC, 0); |
1978 | ||
56cec249 CW |
1979 | if (adapter->flags & IGB_FLAG_MEDIA_RESET) { |
1980 | /* need to resetup here after media swap */ | |
1981 | adapter->ei.get_invariants(hw); | |
1982 | adapter->flags &= ~IGB_FLAG_MEDIA_RESET; | |
1983 | } | |
8cfb879d TF |
1984 | if ((mac->type == e1000_82575) && |
1985 | (adapter->flags & IGB_FLAG_MAS_ENABLE)) { | |
1986 | igb_enable_mas(adapter); | |
56cec249 | 1987 | } |
330a6d6a | 1988 | if (hw->mac.ops.init_hw(hw)) |
090b1795 | 1989 | dev_err(&pdev->dev, "Hardware Error\n"); |
831ec0b4 | 1990 | |
b980ac18 | 1991 | /* Flow control settings reset on hardware reset, so guarantee flow |
a27416bb MV |
1992 | * control is off when forcing speed. |
1993 | */ | |
1994 | if (!hw->mac.autoneg) | |
1995 | igb_force_mac_fc(hw); | |
1996 | ||
b6e0c419 | 1997 | igb_init_dmac(adapter, pba); |
e428893b CW |
1998 | #ifdef CONFIG_IGB_HWMON |
1999 | /* Re-initialize the thermal sensor on i350 devices. */ | |
2000 | if (!test_bit(__IGB_DOWN, &adapter->state)) { | |
2001 | if (mac->type == e1000_i350 && hw->bus.func == 0) { | |
2002 | /* If present, re-initialize the external thermal sensor | |
2003 | * interface. | |
2004 | */ | |
2005 | if (adapter->ets) | |
2006 | mac->ops.init_thermal_sensor_thresh(hw); | |
2007 | } | |
2008 | } | |
2009 | #endif | |
b936136d | 2010 | /* Re-establish EEE setting */ |
f4c01e96 CW |
2011 | if (hw->phy.media_type == e1000_media_type_copper) { |
2012 | switch (mac->type) { | |
2013 | case e1000_i350: | |
2014 | case e1000_i210: | |
2015 | case e1000_i211: | |
c4c112f1 | 2016 | igb_set_eee_i350(hw, true, true); |
f4c01e96 CW |
2017 | break; |
2018 | case e1000_i354: | |
c4c112f1 | 2019 | igb_set_eee_i354(hw, true, true); |
f4c01e96 CW |
2020 | break; |
2021 | default: | |
2022 | break; | |
2023 | } | |
2024 | } | |
88a268c1 NN |
2025 | if (!netif_running(adapter->netdev)) |
2026 | igb_power_down_link(adapter); | |
2027 | ||
9d5c8243 AK |
2028 | igb_update_mng_vlan(adapter); |
2029 | ||
2030 | /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ | |
2031 | wr32(E1000_VET, ETHERNET_IEEE_VLAN_TYPE); | |
2032 | ||
1f6e8178 | 2033 | /* Re-enable PTP, where applicable. */ |
4f3ce71b JK |
2034 | if (adapter->ptp_flags & IGB_PTP_ENABLED) |
2035 | igb_ptp_reset(adapter); | |
1f6e8178 | 2036 | |
330a6d6a | 2037 | igb_get_phy_info(hw); |
9d5c8243 AK |
2038 | } |
2039 | ||
c8f44aff MM |
2040 | static netdev_features_t igb_fix_features(struct net_device *netdev, |
2041 | netdev_features_t features) | |
b2cb09b1 | 2042 | { |
b980ac18 JK |
2043 | /* Since there is no support for separate Rx/Tx vlan accel |
2044 | * enable/disable make sure Tx flag is always in same state as Rx. | |
b2cb09b1 | 2045 | */ |
f646968f PM |
2046 | if (features & NETIF_F_HW_VLAN_CTAG_RX) |
2047 | features |= NETIF_F_HW_VLAN_CTAG_TX; | |
b2cb09b1 | 2048 | else |
f646968f | 2049 | features &= ~NETIF_F_HW_VLAN_CTAG_TX; |
b2cb09b1 JP |
2050 | |
2051 | return features; | |
2052 | } | |
2053 | ||
c8f44aff MM |
2054 | static int igb_set_features(struct net_device *netdev, |
2055 | netdev_features_t features) | |
ac52caa3 | 2056 | { |
c8f44aff | 2057 | netdev_features_t changed = netdev->features ^ features; |
89eaefb6 | 2058 | struct igb_adapter *adapter = netdev_priv(netdev); |
ac52caa3 | 2059 | |
f646968f | 2060 | if (changed & NETIF_F_HW_VLAN_CTAG_RX) |
b2cb09b1 JP |
2061 | igb_vlan_mode(netdev, features); |
2062 | ||
16903caa | 2063 | if (!(changed & (NETIF_F_RXALL | NETIF_F_NTUPLE))) |
89eaefb6 BG |
2064 | return 0; |
2065 | ||
0e71def2 GH |
2066 | if (!(features & NETIF_F_NTUPLE)) { |
2067 | struct hlist_node *node2; | |
2068 | struct igb_nfc_filter *rule; | |
2069 | ||
2070 | spin_lock(&adapter->nfc_lock); | |
2071 | hlist_for_each_entry_safe(rule, node2, | |
2072 | &adapter->nfc_filter_list, nfc_node) { | |
2073 | igb_erase_filter(adapter, rule); | |
2074 | hlist_del(&rule->nfc_node); | |
2075 | kfree(rule); | |
2076 | } | |
2077 | spin_unlock(&adapter->nfc_lock); | |
2078 | adapter->nfc_filter_count = 0; | |
2079 | } | |
2080 | ||
89eaefb6 BG |
2081 | netdev->features = features; |
2082 | ||
2083 | if (netif_running(netdev)) | |
2084 | igb_reinit_locked(adapter); | |
2085 | else | |
2086 | igb_reset(adapter); | |
2087 | ||
ac52caa3 MM |
2088 | return 0; |
2089 | } | |
2090 | ||
268f9d33 AD |
2091 | static int igb_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
2092 | struct net_device *dev, | |
2093 | const unsigned char *addr, u16 vid, | |
2094 | u16 flags) | |
2095 | { | |
2096 | /* guarantee we can provide a unique filter for the unicast address */ | |
2097 | if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) { | |
2098 | struct igb_adapter *adapter = netdev_priv(dev); | |
2099 | struct e1000_hw *hw = &adapter->hw; | |
2100 | int vfn = adapter->vfs_allocated_count; | |
2101 | int rar_entries = hw->mac.rar_entry_count - (vfn + 1); | |
2102 | ||
2103 | if (netdev_uc_count(dev) >= rar_entries) | |
2104 | return -ENOMEM; | |
2105 | } | |
2106 | ||
2107 | return ndo_dflt_fdb_add(ndm, tb, dev, addr, vid, flags); | |
2108 | } | |
2109 | ||
e10715d3 AD |
2110 | #define IGB_MAX_MAC_HDR_LEN 127 |
2111 | #define IGB_MAX_NETWORK_HDR_LEN 511 | |
2112 | ||
2113 | static netdev_features_t | |
2114 | igb_features_check(struct sk_buff *skb, struct net_device *dev, | |
2115 | netdev_features_t features) | |
2116 | { | |
2117 | unsigned int network_hdr_len, mac_hdr_len; | |
2118 | ||
2119 | /* Make certain the headers can be described by a context descriptor */ | |
2120 | mac_hdr_len = skb_network_header(skb) - skb->data; | |
2121 | if (unlikely(mac_hdr_len > IGB_MAX_MAC_HDR_LEN)) | |
2122 | return features & ~(NETIF_F_HW_CSUM | | |
2123 | NETIF_F_SCTP_CRC | | |
2124 | NETIF_F_HW_VLAN_CTAG_TX | | |
2125 | NETIF_F_TSO | | |
2126 | NETIF_F_TSO6); | |
2127 | ||
2128 | network_hdr_len = skb_checksum_start(skb) - skb_network_header(skb); | |
2129 | if (unlikely(network_hdr_len > IGB_MAX_NETWORK_HDR_LEN)) | |
2130 | return features & ~(NETIF_F_HW_CSUM | | |
2131 | NETIF_F_SCTP_CRC | | |
2132 | NETIF_F_TSO | | |
2133 | NETIF_F_TSO6); | |
2134 | ||
2135 | /* We can only support IPV4 TSO in tunnels if we can mangle the | |
2136 | * inner IP ID field, so strip TSO if MANGLEID is not supported. | |
2137 | */ | |
2138 | if (skb->encapsulation && !(features & NETIF_F_TSO_MANGLEID)) | |
2139 | features &= ~NETIF_F_TSO; | |
2140 | ||
2141 | return features; | |
2142 | } | |
2143 | ||
2e5c6922 | 2144 | static const struct net_device_ops igb_netdev_ops = { |
559e9c49 | 2145 | .ndo_open = igb_open, |
2e5c6922 | 2146 | .ndo_stop = igb_close, |
cd392f5c | 2147 | .ndo_start_xmit = igb_xmit_frame, |
12dcd86b | 2148 | .ndo_get_stats64 = igb_get_stats64, |
ff41f8dc | 2149 | .ndo_set_rx_mode = igb_set_rx_mode, |
2e5c6922 SH |
2150 | .ndo_set_mac_address = igb_set_mac, |
2151 | .ndo_change_mtu = igb_change_mtu, | |
2152 | .ndo_do_ioctl = igb_ioctl, | |
2153 | .ndo_tx_timeout = igb_tx_timeout, | |
2154 | .ndo_validate_addr = eth_validate_addr, | |
2e5c6922 SH |
2155 | .ndo_vlan_rx_add_vid = igb_vlan_rx_add_vid, |
2156 | .ndo_vlan_rx_kill_vid = igb_vlan_rx_kill_vid, | |
8151d294 WM |
2157 | .ndo_set_vf_mac = igb_ndo_set_vf_mac, |
2158 | .ndo_set_vf_vlan = igb_ndo_set_vf_vlan, | |
ed616689 | 2159 | .ndo_set_vf_rate = igb_ndo_set_vf_bw, |
70ea4783 | 2160 | .ndo_set_vf_spoofchk = igb_ndo_set_vf_spoofchk, |
8151d294 | 2161 | .ndo_get_vf_config = igb_ndo_get_vf_config, |
2e5c6922 SH |
2162 | #ifdef CONFIG_NET_POLL_CONTROLLER |
2163 | .ndo_poll_controller = igb_netpoll, | |
2164 | #endif | |
b2cb09b1 JP |
2165 | .ndo_fix_features = igb_fix_features, |
2166 | .ndo_set_features = igb_set_features, | |
268f9d33 | 2167 | .ndo_fdb_add = igb_ndo_fdb_add, |
e10715d3 | 2168 | .ndo_features_check = igb_features_check, |
2e5c6922 SH |
2169 | }; |
2170 | ||
d67974f0 CW |
2171 | /** |
2172 | * igb_set_fw_version - Configure version string for ethtool | |
2173 | * @adapter: adapter struct | |
d67974f0 CW |
2174 | **/ |
2175 | void igb_set_fw_version(struct igb_adapter *adapter) | |
2176 | { | |
2177 | struct e1000_hw *hw = &adapter->hw; | |
0b1a6f2e CW |
2178 | struct e1000_fw_version fw; |
2179 | ||
2180 | igb_get_fw_version(hw, &fw); | |
2181 | ||
2182 | switch (hw->mac.type) { | |
7dc98a62 | 2183 | case e1000_i210: |
0b1a6f2e | 2184 | case e1000_i211: |
7dc98a62 CW |
2185 | if (!(igb_get_flash_presence_i210(hw))) { |
2186 | snprintf(adapter->fw_version, | |
2187 | sizeof(adapter->fw_version), | |
2188 | "%2d.%2d-%d", | |
2189 | fw.invm_major, fw.invm_minor, | |
2190 | fw.invm_img_type); | |
2191 | break; | |
2192 | } | |
2193 | /* fall through */ | |
0b1a6f2e CW |
2194 | default: |
2195 | /* if option is rom valid, display its version too */ | |
2196 | if (fw.or_valid) { | |
2197 | snprintf(adapter->fw_version, | |
2198 | sizeof(adapter->fw_version), | |
2199 | "%d.%d, 0x%08x, %d.%d.%d", | |
2200 | fw.eep_major, fw.eep_minor, fw.etrack_id, | |
2201 | fw.or_major, fw.or_build, fw.or_patch); | |
2202 | /* no option rom */ | |
7dc98a62 | 2203 | } else if (fw.etrack_id != 0X0000) { |
0b1a6f2e | 2204 | snprintf(adapter->fw_version, |
7dc98a62 CW |
2205 | sizeof(adapter->fw_version), |
2206 | "%d.%d, 0x%08x", | |
2207 | fw.eep_major, fw.eep_minor, fw.etrack_id); | |
2208 | } else { | |
2209 | snprintf(adapter->fw_version, | |
2210 | sizeof(adapter->fw_version), | |
2211 | "%d.%d.%d", | |
2212 | fw.eep_major, fw.eep_minor, fw.eep_build); | |
0b1a6f2e CW |
2213 | } |
2214 | break; | |
d67974f0 | 2215 | } |
d67974f0 CW |
2216 | } |
2217 | ||
56cec249 CW |
2218 | /** |
2219 | * igb_init_mas - init Media Autosense feature if enabled in the NVM | |
2220 | * | |
2221 | * @adapter: adapter struct | |
2222 | **/ | |
2223 | static void igb_init_mas(struct igb_adapter *adapter) | |
2224 | { | |
2225 | struct e1000_hw *hw = &adapter->hw; | |
2226 | u16 eeprom_data; | |
2227 | ||
2228 | hw->nvm.ops.read(hw, NVM_COMPAT, 1, &eeprom_data); | |
2229 | switch (hw->bus.func) { | |
2230 | case E1000_FUNC_0: | |
2231 | if (eeprom_data & IGB_MAS_ENABLE_0) { | |
2232 | adapter->flags |= IGB_FLAG_MAS_ENABLE; | |
2233 | netdev_info(adapter->netdev, | |
2234 | "MAS: Enabling Media Autosense for port %d\n", | |
2235 | hw->bus.func); | |
2236 | } | |
2237 | break; | |
2238 | case E1000_FUNC_1: | |
2239 | if (eeprom_data & IGB_MAS_ENABLE_1) { | |
2240 | adapter->flags |= IGB_FLAG_MAS_ENABLE; | |
2241 | netdev_info(adapter->netdev, | |
2242 | "MAS: Enabling Media Autosense for port %d\n", | |
2243 | hw->bus.func); | |
2244 | } | |
2245 | break; | |
2246 | case E1000_FUNC_2: | |
2247 | if (eeprom_data & IGB_MAS_ENABLE_2) { | |
2248 | adapter->flags |= IGB_FLAG_MAS_ENABLE; | |
2249 | netdev_info(adapter->netdev, | |
2250 | "MAS: Enabling Media Autosense for port %d\n", | |
2251 | hw->bus.func); | |
2252 | } | |
2253 | break; | |
2254 | case E1000_FUNC_3: | |
2255 | if (eeprom_data & IGB_MAS_ENABLE_3) { | |
2256 | adapter->flags |= IGB_FLAG_MAS_ENABLE; | |
2257 | netdev_info(adapter->netdev, | |
2258 | "MAS: Enabling Media Autosense for port %d\n", | |
2259 | hw->bus.func); | |
2260 | } | |
2261 | break; | |
2262 | default: | |
2263 | /* Shouldn't get here */ | |
2264 | netdev_err(adapter->netdev, | |
2265 | "MAS: Invalid port configuration, returning\n"); | |
2266 | break; | |
2267 | } | |
2268 | } | |
2269 | ||
b980ac18 JK |
2270 | /** |
2271 | * igb_init_i2c - Init I2C interface | |
441fc6fd | 2272 | * @adapter: pointer to adapter structure |
b980ac18 | 2273 | **/ |
441fc6fd CW |
2274 | static s32 igb_init_i2c(struct igb_adapter *adapter) |
2275 | { | |
23d87824 | 2276 | s32 status = 0; |
441fc6fd CW |
2277 | |
2278 | /* I2C interface supported on i350 devices */ | |
2279 | if (adapter->hw.mac.type != e1000_i350) | |
23d87824 | 2280 | return 0; |
441fc6fd CW |
2281 | |
2282 | /* Initialize the i2c bus which is controlled by the registers. | |
2283 | * This bus will use the i2c_algo_bit structue that implements | |
2284 | * the protocol through toggling of the 4 bits in the register. | |
2285 | */ | |
2286 | adapter->i2c_adap.owner = THIS_MODULE; | |
2287 | adapter->i2c_algo = igb_i2c_algo; | |
2288 | adapter->i2c_algo.data = adapter; | |
2289 | adapter->i2c_adap.algo_data = &adapter->i2c_algo; | |
2290 | adapter->i2c_adap.dev.parent = &adapter->pdev->dev; | |
2291 | strlcpy(adapter->i2c_adap.name, "igb BB", | |
2292 | sizeof(adapter->i2c_adap.name)); | |
2293 | status = i2c_bit_add_bus(&adapter->i2c_adap); | |
2294 | return status; | |
2295 | } | |
2296 | ||
9d5c8243 | 2297 | /** |
b980ac18 JK |
2298 | * igb_probe - Device Initialization Routine |
2299 | * @pdev: PCI device information struct | |
2300 | * @ent: entry in igb_pci_tbl | |
9d5c8243 | 2301 | * |
b980ac18 | 2302 | * Returns 0 on success, negative on failure |
9d5c8243 | 2303 | * |
b980ac18 JK |
2304 | * igb_probe initializes an adapter identified by a pci_dev structure. |
2305 | * The OS initialization, configuring of the adapter private structure, | |
2306 | * and a hardware reset occur. | |
9d5c8243 | 2307 | **/ |
1dd06ae8 | 2308 | static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
9d5c8243 AK |
2309 | { |
2310 | struct net_device *netdev; | |
2311 | struct igb_adapter *adapter; | |
2312 | struct e1000_hw *hw; | |
4337e993 | 2313 | u16 eeprom_data = 0; |
9835fd73 | 2314 | s32 ret_val; |
4337e993 | 2315 | static int global_quad_port_a; /* global quad port a indication */ |
9d5c8243 | 2316 | const struct e1000_info *ei = igb_info_tbl[ent->driver_data]; |
2d6a5e95 | 2317 | int err, pci_using_dac; |
9835fd73 | 2318 | u8 part_str[E1000_PBANUM_LENGTH]; |
9d5c8243 | 2319 | |
bded64a7 AG |
2320 | /* Catch broken hardware that put the wrong VF device ID in |
2321 | * the PCIe SR-IOV capability. | |
2322 | */ | |
2323 | if (pdev->is_virtfn) { | |
2324 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", | |
f96a8a0b | 2325 | pci_name(pdev), pdev->vendor, pdev->device); |
bded64a7 AG |
2326 | return -EINVAL; |
2327 | } | |
2328 | ||
aed5dec3 | 2329 | err = pci_enable_device_mem(pdev); |
9d5c8243 AK |
2330 | if (err) |
2331 | return err; | |
2332 | ||
2333 | pci_using_dac = 0; | |
dc4ff9bb | 2334 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
9d5c8243 | 2335 | if (!err) { |
dc4ff9bb | 2336 | pci_using_dac = 1; |
9d5c8243 | 2337 | } else { |
dc4ff9bb | 2338 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
9d5c8243 | 2339 | if (err) { |
dc4ff9bb RK |
2340 | dev_err(&pdev->dev, |
2341 | "No usable DMA configuration, aborting\n"); | |
2342 | goto err_dma; | |
9d5c8243 AK |
2343 | } |
2344 | } | |
2345 | ||
56d766d6 | 2346 | err = pci_request_mem_regions(pdev, igb_driver_name); |
9d5c8243 AK |
2347 | if (err) |
2348 | goto err_pci_reg; | |
2349 | ||
19d5afd4 | 2350 | pci_enable_pcie_error_reporting(pdev); |
40a914fa | 2351 | |
9d5c8243 | 2352 | pci_set_master(pdev); |
c682fc23 | 2353 | pci_save_state(pdev); |
9d5c8243 AK |
2354 | |
2355 | err = -ENOMEM; | |
1bfaf07b | 2356 | netdev = alloc_etherdev_mq(sizeof(struct igb_adapter), |
1cc3bd87 | 2357 | IGB_MAX_TX_QUEUES); |
9d5c8243 AK |
2358 | if (!netdev) |
2359 | goto err_alloc_etherdev; | |
2360 | ||
2361 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
2362 | ||
2363 | pci_set_drvdata(pdev, netdev); | |
2364 | adapter = netdev_priv(netdev); | |
2365 | adapter->netdev = netdev; | |
2366 | adapter->pdev = pdev; | |
2367 | hw = &adapter->hw; | |
2368 | hw->back = adapter; | |
b3f4d599 | 2369 | adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); |
9d5c8243 | 2370 | |
9d5c8243 | 2371 | err = -EIO; |
73bf8048 JW |
2372 | adapter->io_addr = pci_iomap(pdev, 0, 0); |
2373 | if (!adapter->io_addr) | |
9d5c8243 | 2374 | goto err_ioremap; |
73bf8048 JW |
2375 | /* hw->hw_addr can be altered, we'll use adapter->io_addr for unmap */ |
2376 | hw->hw_addr = adapter->io_addr; | |
9d5c8243 | 2377 | |
2e5c6922 | 2378 | netdev->netdev_ops = &igb_netdev_ops; |
9d5c8243 | 2379 | igb_set_ethtool_ops(netdev); |
9d5c8243 | 2380 | netdev->watchdog_timeo = 5 * HZ; |
9d5c8243 AK |
2381 | |
2382 | strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); | |
2383 | ||
89dbefb2 AS |
2384 | netdev->mem_start = pci_resource_start(pdev, 0); |
2385 | netdev->mem_end = pci_resource_end(pdev, 0); | |
9d5c8243 | 2386 | |
9d5c8243 AK |
2387 | /* PCI config space info */ |
2388 | hw->vendor_id = pdev->vendor; | |
2389 | hw->device_id = pdev->device; | |
2390 | hw->revision_id = pdev->revision; | |
2391 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
2392 | hw->subsystem_device_id = pdev->subsystem_device; | |
2393 | ||
9d5c8243 AK |
2394 | /* Copy the default MAC, PHY and NVM function pointers */ |
2395 | memcpy(&hw->mac.ops, ei->mac_ops, sizeof(hw->mac.ops)); | |
2396 | memcpy(&hw->phy.ops, ei->phy_ops, sizeof(hw->phy.ops)); | |
2397 | memcpy(&hw->nvm.ops, ei->nvm_ops, sizeof(hw->nvm.ops)); | |
2398 | /* Initialize skew-specific constants */ | |
2399 | err = ei->get_invariants(hw); | |
2400 | if (err) | |
450c87c8 | 2401 | goto err_sw_init; |
9d5c8243 | 2402 | |
450c87c8 | 2403 | /* setup the private structure */ |
9d5c8243 AK |
2404 | err = igb_sw_init(adapter); |
2405 | if (err) | |
2406 | goto err_sw_init; | |
2407 | ||
2408 | igb_get_bus_info_pcie(hw); | |
2409 | ||
2410 | hw->phy.autoneg_wait_to_complete = false; | |
9d5c8243 AK |
2411 | |
2412 | /* Copper options */ | |
2413 | if (hw->phy.media_type == e1000_media_type_copper) { | |
2414 | hw->phy.mdix = AUTO_ALL_MODES; | |
2415 | hw->phy.disable_polarity_correction = false; | |
2416 | hw->phy.ms_type = e1000_ms_hw_default; | |
2417 | } | |
2418 | ||
2419 | if (igb_check_reset_block(hw)) | |
2420 | dev_info(&pdev->dev, | |
2421 | "PHY reset is blocked due to SOL/IDER session.\n"); | |
2422 | ||
b980ac18 | 2423 | /* features is initialized to 0 in allocation, it might have bits |
077887c3 AD |
2424 | * set by igb_sw_init so we should use an or instead of an |
2425 | * assignment. | |
2426 | */ | |
2427 | netdev->features |= NETIF_F_SG | | |
077887c3 AD |
2428 | NETIF_F_TSO | |
2429 | NETIF_F_TSO6 | | |
2430 | NETIF_F_RXHASH | | |
2431 | NETIF_F_RXCSUM | | |
e10715d3 | 2432 | NETIF_F_HW_CSUM; |
077887c3 | 2433 | |
6e033700 AD |
2434 | if (hw->mac.type >= e1000_82576) |
2435 | netdev->features |= NETIF_F_SCTP_CRC; | |
2436 | ||
e10715d3 AD |
2437 | #define IGB_GSO_PARTIAL_FEATURES (NETIF_F_GSO_GRE | \ |
2438 | NETIF_F_GSO_GRE_CSUM | \ | |
7e13318d | 2439 | NETIF_F_GSO_IPXIP4 | \ |
bf2d1df3 | 2440 | NETIF_F_GSO_IPXIP6 | \ |
e10715d3 AD |
2441 | NETIF_F_GSO_UDP_TUNNEL | \ |
2442 | NETIF_F_GSO_UDP_TUNNEL_CSUM) | |
2443 | ||
2444 | netdev->gso_partial_features = IGB_GSO_PARTIAL_FEATURES; | |
2445 | netdev->features |= NETIF_F_GSO_PARTIAL | IGB_GSO_PARTIAL_FEATURES; | |
2446 | ||
077887c3 | 2447 | /* copy netdev features into list of user selectable features */ |
e10715d3 AD |
2448 | netdev->hw_features |= netdev->features | |
2449 | NETIF_F_HW_VLAN_CTAG_RX | | |
2450 | NETIF_F_HW_VLAN_CTAG_TX | | |
2451 | NETIF_F_RXALL; | |
077887c3 | 2452 | |
6e033700 AD |
2453 | if (hw->mac.type >= e1000_i350) |
2454 | netdev->hw_features |= NETIF_F_NTUPLE; | |
2455 | ||
e10715d3 AD |
2456 | if (pci_using_dac) |
2457 | netdev->features |= NETIF_F_HIGHDMA; | |
6e033700 | 2458 | |
e10715d3 | 2459 | netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID; |
6e033700 | 2460 | netdev->mpls_features |= NETIF_F_HW_CSUM; |
e10715d3 | 2461 | netdev->hw_enc_features |= netdev->vlan_features; |
48f29ffc | 2462 | |
e10715d3 AD |
2463 | /* set this bit last since it cannot be part of vlan_features */ |
2464 | netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | | |
2465 | NETIF_F_HW_VLAN_CTAG_RX | | |
2466 | NETIF_F_HW_VLAN_CTAG_TX; | |
6b8f0922 | 2467 | |
e10715d3 | 2468 | netdev->priv_flags |= IFF_SUPP_NOFCS; |
9d5c8243 | 2469 | |
01789349 JP |
2470 | netdev->priv_flags |= IFF_UNICAST_FLT; |
2471 | ||
91c527a5 JW |
2472 | /* MTU range: 68 - 9216 */ |
2473 | netdev->min_mtu = ETH_MIN_MTU; | |
2474 | netdev->max_mtu = MAX_STD_JUMBO_FRAME_SIZE; | |
2475 | ||
330a6d6a | 2476 | adapter->en_mng_pt = igb_enable_mng_pass_thru(hw); |
9d5c8243 AK |
2477 | |
2478 | /* before reading the NVM, reset the controller to put the device in a | |
b980ac18 JK |
2479 | * known good starting state |
2480 | */ | |
9d5c8243 AK |
2481 | hw->mac.ops.reset_hw(hw); |
2482 | ||
ef3a0092 CW |
2483 | /* make sure the NVM is good , i211/i210 parts can have special NVM |
2484 | * that doesn't contain a checksum | |
f96a8a0b | 2485 | */ |
ef3a0092 CW |
2486 | switch (hw->mac.type) { |
2487 | case e1000_i210: | |
2488 | case e1000_i211: | |
2489 | if (igb_get_flash_presence_i210(hw)) { | |
2490 | if (hw->nvm.ops.validate(hw) < 0) { | |
2491 | dev_err(&pdev->dev, | |
2492 | "The NVM Checksum Is Not Valid\n"); | |
2493 | err = -EIO; | |
2494 | goto err_eeprom; | |
2495 | } | |
2496 | } | |
2497 | break; | |
2498 | default: | |
f96a8a0b CW |
2499 | if (hw->nvm.ops.validate(hw) < 0) { |
2500 | dev_err(&pdev->dev, "The NVM Checksum Is Not Valid\n"); | |
2501 | err = -EIO; | |
2502 | goto err_eeprom; | |
2503 | } | |
ef3a0092 | 2504 | break; |
9d5c8243 AK |
2505 | } |
2506 | ||
806ffb1d JH |
2507 | if (eth_platform_get_mac_address(&pdev->dev, hw->mac.addr)) { |
2508 | /* copy the MAC address out of the NVM */ | |
2509 | if (hw->mac.ops.read_mac_addr(hw)) | |
2510 | dev_err(&pdev->dev, "NVM Read Error\n"); | |
2511 | } | |
9d5c8243 AK |
2512 | |
2513 | memcpy(netdev->dev_addr, hw->mac.addr, netdev->addr_len); | |
9d5c8243 | 2514 | |
aaeb6cdf | 2515 | if (!is_valid_ether_addr(netdev->dev_addr)) { |
9d5c8243 AK |
2516 | dev_err(&pdev->dev, "Invalid MAC Address\n"); |
2517 | err = -EIO; | |
2518 | goto err_eeprom; | |
2519 | } | |
2520 | ||
d67974f0 CW |
2521 | /* get firmware version for ethtool -i */ |
2522 | igb_set_fw_version(adapter); | |
2523 | ||
27dff8b2 TF |
2524 | /* configure RXPBSIZE and TXPBSIZE */ |
2525 | if (hw->mac.type == e1000_i210) { | |
2526 | wr32(E1000_RXPBS, I210_RXPBSIZE_DEFAULT); | |
2527 | wr32(E1000_TXPBS, I210_TXPBSIZE_DEFAULT); | |
2528 | } | |
2529 | ||
c061b18d | 2530 | setup_timer(&adapter->watchdog_timer, igb_watchdog, |
b980ac18 | 2531 | (unsigned long) adapter); |
c061b18d | 2532 | setup_timer(&adapter->phy_info_timer, igb_update_phy_info, |
b980ac18 | 2533 | (unsigned long) adapter); |
9d5c8243 AK |
2534 | |
2535 | INIT_WORK(&adapter->reset_task, igb_reset_task); | |
2536 | INIT_WORK(&adapter->watchdog_task, igb_watchdog_task); | |
2537 | ||
450c87c8 | 2538 | /* Initialize link properties that are user-changeable */ |
9d5c8243 AK |
2539 | adapter->fc_autoneg = true; |
2540 | hw->mac.autoneg = true; | |
2541 | hw->phy.autoneg_advertised = 0x2f; | |
2542 | ||
0cce119a AD |
2543 | hw->fc.requested_mode = e1000_fc_default; |
2544 | hw->fc.current_mode = e1000_fc_default; | |
9d5c8243 | 2545 | |
9d5c8243 AK |
2546 | igb_validate_mdi_setting(hw); |
2547 | ||
63d4a8f9 | 2548 | /* By default, support wake on port A */ |
a2cf8b6c | 2549 | if (hw->bus.func == 0) |
63d4a8f9 MV |
2550 | adapter->flags |= IGB_FLAG_WOL_SUPPORTED; |
2551 | ||
2552 | /* Check the NVM for wake support on non-port A ports */ | |
2553 | if (hw->mac.type >= e1000_82580) | |
55cac248 | 2554 | hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A + |
b980ac18 JK |
2555 | NVM_82580_LAN_FUNC_OFFSET(hw->bus.func), 1, |
2556 | &eeprom_data); | |
a2cf8b6c AD |
2557 | else if (hw->bus.func == 1) |
2558 | hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_B, 1, &eeprom_data); | |
9d5c8243 | 2559 | |
63d4a8f9 MV |
2560 | if (eeprom_data & IGB_EEPROM_APME) |
2561 | adapter->flags |= IGB_FLAG_WOL_SUPPORTED; | |
9d5c8243 AK |
2562 | |
2563 | /* now that we have the eeprom settings, apply the special cases where | |
2564 | * the eeprom may be wrong or the board simply won't support wake on | |
b980ac18 JK |
2565 | * lan on a particular port |
2566 | */ | |
9d5c8243 AK |
2567 | switch (pdev->device) { |
2568 | case E1000_DEV_ID_82575GB_QUAD_COPPER: | |
63d4a8f9 | 2569 | adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED; |
9d5c8243 AK |
2570 | break; |
2571 | case E1000_DEV_ID_82575EB_FIBER_SERDES: | |
2d064c06 AD |
2572 | case E1000_DEV_ID_82576_FIBER: |
2573 | case E1000_DEV_ID_82576_SERDES: | |
9d5c8243 | 2574 | /* Wake events only supported on port A for dual fiber |
b980ac18 JK |
2575 | * regardless of eeprom setting |
2576 | */ | |
9d5c8243 | 2577 | if (rd32(E1000_STATUS) & E1000_STATUS_FUNC_1) |
63d4a8f9 | 2578 | adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED; |
9d5c8243 | 2579 | break; |
c8ea5ea9 | 2580 | case E1000_DEV_ID_82576_QUAD_COPPER: |
d5aa2252 | 2581 | case E1000_DEV_ID_82576_QUAD_COPPER_ET2: |
c8ea5ea9 AD |
2582 | /* if quad port adapter, disable WoL on all but port A */ |
2583 | if (global_quad_port_a != 0) | |
63d4a8f9 | 2584 | adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED; |
c8ea5ea9 AD |
2585 | else |
2586 | adapter->flags |= IGB_FLAG_QUAD_PORT_A; | |
2587 | /* Reset for multiple quad port adapters */ | |
2588 | if (++global_quad_port_a == 4) | |
2589 | global_quad_port_a = 0; | |
2590 | break; | |
63d4a8f9 MV |
2591 | default: |
2592 | /* If the device can't wake, don't set software support */ | |
2593 | if (!device_can_wakeup(&adapter->pdev->dev)) | |
2594 | adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED; | |
9d5c8243 AK |
2595 | } |
2596 | ||
2597 | /* initialize the wol settings based on the eeprom settings */ | |
63d4a8f9 MV |
2598 | if (adapter->flags & IGB_FLAG_WOL_SUPPORTED) |
2599 | adapter->wol |= E1000_WUFC_MAG; | |
2600 | ||
2601 | /* Some vendors want WoL disabled by default, but still supported */ | |
2602 | if ((hw->mac.type == e1000_i350) && | |
2603 | (pdev->subsystem_vendor == PCI_VENDOR_ID_HP)) { | |
2604 | adapter->flags |= IGB_FLAG_WOL_SUPPORTED; | |
2605 | adapter->wol = 0; | |
2606 | } | |
2607 | ||
5e350b92 TF |
2608 | /* Some vendors want the ability to Use the EEPROM setting as |
2609 | * enable/disable only, and not for capability | |
2610 | */ | |
2611 | if (((hw->mac.type == e1000_i350) || | |
2612 | (hw->mac.type == e1000_i354)) && | |
2613 | (pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)) { | |
2614 | adapter->flags |= IGB_FLAG_WOL_SUPPORTED; | |
2615 | adapter->wol = 0; | |
2616 | } | |
2617 | if (hw->mac.type == e1000_i350) { | |
2618 | if (((pdev->subsystem_device == 0x5001) || | |
2619 | (pdev->subsystem_device == 0x5002)) && | |
2620 | (hw->bus.func == 0)) { | |
2621 | adapter->flags |= IGB_FLAG_WOL_SUPPORTED; | |
2622 | adapter->wol = 0; | |
2623 | } | |
2624 | if (pdev->subsystem_device == 0x1F52) | |
2625 | adapter->flags |= IGB_FLAG_WOL_SUPPORTED; | |
2626 | } | |
2627 | ||
63d4a8f9 MV |
2628 | device_set_wakeup_enable(&adapter->pdev->dev, |
2629 | adapter->flags & IGB_FLAG_WOL_SUPPORTED); | |
9d5c8243 AK |
2630 | |
2631 | /* reset the hardware with the new settings */ | |
2632 | igb_reset(adapter); | |
2633 | ||
441fc6fd CW |
2634 | /* Init the I2C interface */ |
2635 | err = igb_init_i2c(adapter); | |
2636 | if (err) { | |
2637 | dev_err(&pdev->dev, "failed to init i2c interface\n"); | |
2638 | goto err_eeprom; | |
2639 | } | |
2640 | ||
9d5c8243 | 2641 | /* let the f/w know that the h/w is now under the control of the |
e52c0f96 CW |
2642 | * driver. |
2643 | */ | |
9d5c8243 AK |
2644 | igb_get_hw_control(adapter); |
2645 | ||
9d5c8243 AK |
2646 | strcpy(netdev->name, "eth%d"); |
2647 | err = register_netdev(netdev); | |
2648 | if (err) | |
2649 | goto err_register; | |
2650 | ||
b168dfc5 JB |
2651 | /* carrier off reporting is important to ethtool even BEFORE open */ |
2652 | netif_carrier_off(netdev); | |
2653 | ||
421e02f0 | 2654 | #ifdef CONFIG_IGB_DCA |
bbd98fe4 | 2655 | if (dca_add_requester(&pdev->dev) == 0) { |
7dfc16fa | 2656 | adapter->flags |= IGB_FLAG_DCA_ENABLED; |
fe4506b6 | 2657 | dev_info(&pdev->dev, "DCA enabled\n"); |
fe4506b6 JC |
2658 | igb_setup_dca(adapter); |
2659 | } | |
fe4506b6 | 2660 | |
38c845c7 | 2661 | #endif |
e428893b CW |
2662 | #ifdef CONFIG_IGB_HWMON |
2663 | /* Initialize the thermal sensor on i350 devices. */ | |
2664 | if (hw->mac.type == e1000_i350 && hw->bus.func == 0) { | |
2665 | u16 ets_word; | |
3c89f6d0 | 2666 | |
b980ac18 | 2667 | /* Read the NVM to determine if this i350 device supports an |
e428893b CW |
2668 | * external thermal sensor. |
2669 | */ | |
2670 | hw->nvm.ops.read(hw, NVM_ETS_CFG, 1, &ets_word); | |
2671 | if (ets_word != 0x0000 && ets_word != 0xFFFF) | |
2672 | adapter->ets = true; | |
2673 | else | |
2674 | adapter->ets = false; | |
2675 | if (igb_sysfs_init(adapter)) | |
2676 | dev_err(&pdev->dev, | |
2677 | "failed to allocate sysfs resources\n"); | |
2678 | } else { | |
2679 | adapter->ets = false; | |
2680 | } | |
2681 | #endif | |
56cec249 CW |
2682 | /* Check if Media Autosense is enabled */ |
2683 | adapter->ei = *ei; | |
2684 | if (hw->dev_spec._82575.mas_capable) | |
2685 | igb_init_mas(adapter); | |
2686 | ||
673b8b70 | 2687 | /* do hw tstamp init after resetting */ |
7ebae817 | 2688 | igb_ptp_init(adapter); |
673b8b70 | 2689 | |
9d5c8243 | 2690 | dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n"); |
ceb5f13b CW |
2691 | /* print bus type/speed/width info, not applicable to i354 */ |
2692 | if (hw->mac.type != e1000_i354) { | |
2693 | dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n", | |
2694 | netdev->name, | |
2695 | ((hw->bus.speed == e1000_bus_speed_2500) ? "2.5Gb/s" : | |
2696 | (hw->bus.speed == e1000_bus_speed_5000) ? "5.0Gb/s" : | |
2697 | "unknown"), | |
2698 | ((hw->bus.width == e1000_bus_width_pcie_x4) ? | |
2699 | "Width x4" : | |
2700 | (hw->bus.width == e1000_bus_width_pcie_x2) ? | |
2701 | "Width x2" : | |
2702 | (hw->bus.width == e1000_bus_width_pcie_x1) ? | |
2703 | "Width x1" : "unknown"), netdev->dev_addr); | |
2704 | } | |
9d5c8243 | 2705 | |
53ea6c7e TF |
2706 | if ((hw->mac.type >= e1000_i210 || |
2707 | igb_get_flash_presence_i210(hw))) { | |
2708 | ret_val = igb_read_part_string(hw, part_str, | |
2709 | E1000_PBANUM_LENGTH); | |
2710 | } else { | |
2711 | ret_val = -E1000_ERR_INVM_VALUE_NOT_FOUND; | |
2712 | } | |
2713 | ||
9835fd73 CW |
2714 | if (ret_val) |
2715 | strcpy(part_str, "Unknown"); | |
2716 | dev_info(&pdev->dev, "%s: PBA No: %s\n", netdev->name, part_str); | |
9d5c8243 AK |
2717 | dev_info(&pdev->dev, |
2718 | "Using %s interrupts. %d rx queue(s), %d tx queue(s)\n", | |
cd14ef54 | 2719 | (adapter->flags & IGB_FLAG_HAS_MSIX) ? "MSI-X" : |
7dfc16fa | 2720 | (adapter->flags & IGB_FLAG_HAS_MSI) ? "MSI" : "legacy", |
9d5c8243 | 2721 | adapter->num_rx_queues, adapter->num_tx_queues); |
f4c01e96 CW |
2722 | if (hw->phy.media_type == e1000_media_type_copper) { |
2723 | switch (hw->mac.type) { | |
2724 | case e1000_i350: | |
2725 | case e1000_i210: | |
2726 | case e1000_i211: | |
2727 | /* Enable EEE for internal copper PHY devices */ | |
c4c112f1 | 2728 | err = igb_set_eee_i350(hw, true, true); |
f4c01e96 CW |
2729 | if ((!err) && |
2730 | (!hw->dev_spec._82575.eee_disable)) { | |
2731 | adapter->eee_advert = | |
2732 | MDIO_EEE_100TX | MDIO_EEE_1000T; | |
2733 | adapter->flags |= IGB_FLAG_EEE; | |
2734 | } | |
2735 | break; | |
2736 | case e1000_i354: | |
ceb5f13b | 2737 | if ((rd32(E1000_CTRL_EXT) & |
f4c01e96 | 2738 | E1000_CTRL_EXT_LINK_MODE_SGMII)) { |
c4c112f1 | 2739 | err = igb_set_eee_i354(hw, true, true); |
f4c01e96 CW |
2740 | if ((!err) && |
2741 | (!hw->dev_spec._82575.eee_disable)) { | |
2742 | adapter->eee_advert = | |
2743 | MDIO_EEE_100TX | MDIO_EEE_1000T; | |
2744 | adapter->flags |= IGB_FLAG_EEE; | |
2745 | } | |
2746 | } | |
2747 | break; | |
2748 | default: | |
2749 | break; | |
ceb5f13b | 2750 | } |
09b068d4 | 2751 | } |
749ab2cd | 2752 | pm_runtime_put_noidle(&pdev->dev); |
9d5c8243 AK |
2753 | return 0; |
2754 | ||
2755 | err_register: | |
2756 | igb_release_hw_control(adapter); | |
441fc6fd | 2757 | memset(&adapter->i2c_adap, 0, sizeof(adapter->i2c_adap)); |
9d5c8243 AK |
2758 | err_eeprom: |
2759 | if (!igb_check_reset_block(hw)) | |
f5f4cf08 | 2760 | igb_reset_phy(hw); |
9d5c8243 AK |
2761 | |
2762 | if (hw->flash_address) | |
2763 | iounmap(hw->flash_address); | |
9d5c8243 | 2764 | err_sw_init: |
42ad1a03 | 2765 | kfree(adapter->shadow_vfta); |
047e0030 | 2766 | igb_clear_interrupt_scheme(adapter); |
ceee3450 TF |
2767 | #ifdef CONFIG_PCI_IOV |
2768 | igb_disable_sriov(pdev); | |
2769 | #endif | |
73bf8048 | 2770 | pci_iounmap(pdev, adapter->io_addr); |
9d5c8243 AK |
2771 | err_ioremap: |
2772 | free_netdev(netdev); | |
2773 | err_alloc_etherdev: | |
56d766d6 | 2774 | pci_release_mem_regions(pdev); |
9d5c8243 AK |
2775 | err_pci_reg: |
2776 | err_dma: | |
2777 | pci_disable_device(pdev); | |
2778 | return err; | |
2779 | } | |
2780 | ||
fa44f2f1 | 2781 | #ifdef CONFIG_PCI_IOV |
781798a1 | 2782 | static int igb_disable_sriov(struct pci_dev *pdev) |
fa44f2f1 GR |
2783 | { |
2784 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2785 | struct igb_adapter *adapter = netdev_priv(netdev); | |
2786 | struct e1000_hw *hw = &adapter->hw; | |
2787 | ||
2788 | /* reclaim resources allocated to VFs */ | |
2789 | if (adapter->vf_data) { | |
2790 | /* disable iov and allow time for transactions to clear */ | |
b09186d2 | 2791 | if (pci_vfs_assigned(pdev)) { |
fa44f2f1 GR |
2792 | dev_warn(&pdev->dev, |
2793 | "Cannot deallocate SR-IOV virtual functions while they are assigned - VFs will not be deallocated\n"); | |
2794 | return -EPERM; | |
2795 | } else { | |
2796 | pci_disable_sriov(pdev); | |
2797 | msleep(500); | |
2798 | } | |
2799 | ||
2800 | kfree(adapter->vf_data); | |
2801 | adapter->vf_data = NULL; | |
2802 | adapter->vfs_allocated_count = 0; | |
2803 | wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ); | |
2804 | wrfl(); | |
2805 | msleep(100); | |
2806 | dev_info(&pdev->dev, "IOV Disabled\n"); | |
2807 | ||
2808 | /* Re-enable DMA Coalescing flag since IOV is turned off */ | |
2809 | adapter->flags |= IGB_FLAG_DMAC; | |
2810 | } | |
2811 | ||
2812 | return 0; | |
2813 | } | |
2814 | ||
2815 | static int igb_enable_sriov(struct pci_dev *pdev, int num_vfs) | |
2816 | { | |
2817 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2818 | struct igb_adapter *adapter = netdev_priv(netdev); | |
2819 | int old_vfs = pci_num_vf(pdev); | |
2820 | int err = 0; | |
2821 | int i; | |
2822 | ||
cd14ef54 | 2823 | if (!(adapter->flags & IGB_FLAG_HAS_MSIX) || num_vfs > 7) { |
50267196 MW |
2824 | err = -EPERM; |
2825 | goto out; | |
2826 | } | |
fa44f2f1 GR |
2827 | if (!num_vfs) |
2828 | goto out; | |
fa44f2f1 | 2829 | |
781798a1 SA |
2830 | if (old_vfs) { |
2831 | dev_info(&pdev->dev, "%d pre-allocated VFs found - override max_vfs setting of %d\n", | |
2832 | old_vfs, max_vfs); | |
2833 | adapter->vfs_allocated_count = old_vfs; | |
2834 | } else | |
2835 | adapter->vfs_allocated_count = num_vfs; | |
fa44f2f1 GR |
2836 | |
2837 | adapter->vf_data = kcalloc(adapter->vfs_allocated_count, | |
2838 | sizeof(struct vf_data_storage), GFP_KERNEL); | |
2839 | ||
2840 | /* if allocation failed then we do not support SR-IOV */ | |
2841 | if (!adapter->vf_data) { | |
2842 | adapter->vfs_allocated_count = 0; | |
2843 | dev_err(&pdev->dev, | |
2844 | "Unable to allocate memory for VF Data Storage\n"); | |
2845 | err = -ENOMEM; | |
2846 | goto out; | |
2847 | } | |
2848 | ||
781798a1 SA |
2849 | /* only call pci_enable_sriov() if no VFs are allocated already */ |
2850 | if (!old_vfs) { | |
2851 | err = pci_enable_sriov(pdev, adapter->vfs_allocated_count); | |
2852 | if (err) | |
2853 | goto err_out; | |
2854 | } | |
fa44f2f1 GR |
2855 | dev_info(&pdev->dev, "%d VFs allocated\n", |
2856 | adapter->vfs_allocated_count); | |
2857 | for (i = 0; i < adapter->vfs_allocated_count; i++) | |
2858 | igb_vf_configure(adapter, i); | |
2859 | ||
2860 | /* DMA Coalescing is not supported in IOV mode. */ | |
2861 | adapter->flags &= ~IGB_FLAG_DMAC; | |
2862 | goto out; | |
2863 | ||
2864 | err_out: | |
2865 | kfree(adapter->vf_data); | |
2866 | adapter->vf_data = NULL; | |
2867 | adapter->vfs_allocated_count = 0; | |
2868 | out: | |
2869 | return err; | |
2870 | } | |
2871 | ||
2872 | #endif | |
b980ac18 | 2873 | /** |
441fc6fd CW |
2874 | * igb_remove_i2c - Cleanup I2C interface |
2875 | * @adapter: pointer to adapter structure | |
b980ac18 | 2876 | **/ |
441fc6fd CW |
2877 | static void igb_remove_i2c(struct igb_adapter *adapter) |
2878 | { | |
441fc6fd CW |
2879 | /* free the adapter bus structure */ |
2880 | i2c_del_adapter(&adapter->i2c_adap); | |
2881 | } | |
2882 | ||
9d5c8243 | 2883 | /** |
b980ac18 JK |
2884 | * igb_remove - Device Removal Routine |
2885 | * @pdev: PCI device information struct | |
9d5c8243 | 2886 | * |
b980ac18 JK |
2887 | * igb_remove is called by the PCI subsystem to alert the driver |
2888 | * that it should release a PCI device. The could be caused by a | |
2889 | * Hot-Plug event, or because the driver is going to be removed from | |
2890 | * memory. | |
9d5c8243 | 2891 | **/ |
9f9a12f8 | 2892 | static void igb_remove(struct pci_dev *pdev) |
9d5c8243 AK |
2893 | { |
2894 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2895 | struct igb_adapter *adapter = netdev_priv(netdev); | |
fe4506b6 | 2896 | struct e1000_hw *hw = &adapter->hw; |
9d5c8243 | 2897 | |
749ab2cd | 2898 | pm_runtime_get_noresume(&pdev->dev); |
e428893b CW |
2899 | #ifdef CONFIG_IGB_HWMON |
2900 | igb_sysfs_exit(adapter); | |
2901 | #endif | |
441fc6fd | 2902 | igb_remove_i2c(adapter); |
a79f4f88 | 2903 | igb_ptp_stop(adapter); |
b980ac18 | 2904 | /* The watchdog timer may be rescheduled, so explicitly |
760141a5 TH |
2905 | * disable watchdog from being rescheduled. |
2906 | */ | |
9d5c8243 AK |
2907 | set_bit(__IGB_DOWN, &adapter->state); |
2908 | del_timer_sync(&adapter->watchdog_timer); | |
2909 | del_timer_sync(&adapter->phy_info_timer); | |
2910 | ||
760141a5 TH |
2911 | cancel_work_sync(&adapter->reset_task); |
2912 | cancel_work_sync(&adapter->watchdog_task); | |
9d5c8243 | 2913 | |
421e02f0 | 2914 | #ifdef CONFIG_IGB_DCA |
7dfc16fa | 2915 | if (adapter->flags & IGB_FLAG_DCA_ENABLED) { |
fe4506b6 JC |
2916 | dev_info(&pdev->dev, "DCA disabled\n"); |
2917 | dca_remove_requester(&pdev->dev); | |
7dfc16fa | 2918 | adapter->flags &= ~IGB_FLAG_DCA_ENABLED; |
cbd347ad | 2919 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE); |
fe4506b6 JC |
2920 | } |
2921 | #endif | |
2922 | ||
9d5c8243 | 2923 | /* Release control of h/w to f/w. If f/w is AMT enabled, this |
b980ac18 JK |
2924 | * would have already happened in close and is redundant. |
2925 | */ | |
9d5c8243 AK |
2926 | igb_release_hw_control(adapter); |
2927 | ||
37680117 | 2928 | #ifdef CONFIG_PCI_IOV |
fa44f2f1 | 2929 | igb_disable_sriov(pdev); |
37680117 | 2930 | #endif |
559e9c49 | 2931 | |
c23d92b8 AW |
2932 | unregister_netdev(netdev); |
2933 | ||
2934 | igb_clear_interrupt_scheme(adapter); | |
2935 | ||
73bf8048 | 2936 | pci_iounmap(pdev, adapter->io_addr); |
28b0759c AD |
2937 | if (hw->flash_address) |
2938 | iounmap(hw->flash_address); | |
56d766d6 | 2939 | pci_release_mem_regions(pdev); |
9d5c8243 | 2940 | |
1128c756 | 2941 | kfree(adapter->shadow_vfta); |
9d5c8243 AK |
2942 | free_netdev(netdev); |
2943 | ||
19d5afd4 | 2944 | pci_disable_pcie_error_reporting(pdev); |
40a914fa | 2945 | |
9d5c8243 AK |
2946 | pci_disable_device(pdev); |
2947 | } | |
2948 | ||
a6b623e0 | 2949 | /** |
b980ac18 JK |
2950 | * igb_probe_vfs - Initialize vf data storage and add VFs to pci config space |
2951 | * @adapter: board private structure to initialize | |
a6b623e0 | 2952 | * |
b980ac18 JK |
2953 | * This function initializes the vf specific data storage and then attempts to |
2954 | * allocate the VFs. The reason for ordering it this way is because it is much | |
2955 | * mor expensive time wise to disable SR-IOV than it is to allocate and free | |
2956 | * the memory for the VFs. | |
a6b623e0 | 2957 | **/ |
9f9a12f8 | 2958 | static void igb_probe_vfs(struct igb_adapter *adapter) |
a6b623e0 AD |
2959 | { |
2960 | #ifdef CONFIG_PCI_IOV | |
2961 | struct pci_dev *pdev = adapter->pdev; | |
f96a8a0b | 2962 | struct e1000_hw *hw = &adapter->hw; |
a6b623e0 | 2963 | |
f96a8a0b CW |
2964 | /* Virtualization features not supported on i210 family. */ |
2965 | if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211)) | |
2966 | return; | |
2967 | ||
be06998f JB |
2968 | /* Of the below we really only want the effect of getting |
2969 | * IGB_FLAG_HAS_MSIX set (if available), without which | |
2970 | * igb_enable_sriov() has no effect. | |
2971 | */ | |
2972 | igb_set_interrupt_capability(adapter, true); | |
2973 | igb_reset_interrupt_capability(adapter); | |
2974 | ||
fa44f2f1 | 2975 | pci_sriov_set_totalvfs(pdev, 7); |
6423fc34 | 2976 | igb_enable_sriov(pdev, max_vfs); |
0224d663 | 2977 | |
a6b623e0 AD |
2978 | #endif /* CONFIG_PCI_IOV */ |
2979 | } | |
2980 | ||
fa44f2f1 | 2981 | static void igb_init_queue_configuration(struct igb_adapter *adapter) |
9d5c8243 AK |
2982 | { |
2983 | struct e1000_hw *hw = &adapter->hw; | |
374a542d | 2984 | u32 max_rss_queues; |
9d5c8243 | 2985 | |
374a542d | 2986 | /* Determine the maximum number of RSS queues supported. */ |
f96a8a0b | 2987 | switch (hw->mac.type) { |
374a542d MV |
2988 | case e1000_i211: |
2989 | max_rss_queues = IGB_MAX_RX_QUEUES_I211; | |
2990 | break; | |
2991 | case e1000_82575: | |
f96a8a0b | 2992 | case e1000_i210: |
374a542d MV |
2993 | max_rss_queues = IGB_MAX_RX_QUEUES_82575; |
2994 | break; | |
2995 | case e1000_i350: | |
2996 | /* I350 cannot do RSS and SR-IOV at the same time */ | |
2997 | if (!!adapter->vfs_allocated_count) { | |
2998 | max_rss_queues = 1; | |
2999 | break; | |
3000 | } | |
3001 | /* fall through */ | |
3002 | case e1000_82576: | |
3003 | if (!!adapter->vfs_allocated_count) { | |
3004 | max_rss_queues = 2; | |
3005 | break; | |
3006 | } | |
3007 | /* fall through */ | |
3008 | case e1000_82580: | |
ceb5f13b | 3009 | case e1000_i354: |
374a542d MV |
3010 | default: |
3011 | max_rss_queues = IGB_MAX_RX_QUEUES; | |
f96a8a0b | 3012 | break; |
374a542d MV |
3013 | } |
3014 | ||
3015 | adapter->rss_queues = min_t(u32, max_rss_queues, num_online_cpus()); | |
3016 | ||
72ddef05 SS |
3017 | igb_set_flag_queue_pairs(adapter, max_rss_queues); |
3018 | } | |
3019 | ||
3020 | void igb_set_flag_queue_pairs(struct igb_adapter *adapter, | |
3021 | const u32 max_rss_queues) | |
3022 | { | |
3023 | struct e1000_hw *hw = &adapter->hw; | |
3024 | ||
374a542d MV |
3025 | /* Determine if we need to pair queues. */ |
3026 | switch (hw->mac.type) { | |
3027 | case e1000_82575: | |
f96a8a0b | 3028 | case e1000_i211: |
374a542d | 3029 | /* Device supports enough interrupts without queue pairing. */ |
f96a8a0b | 3030 | break; |
374a542d | 3031 | case e1000_82576: |
374a542d MV |
3032 | case e1000_82580: |
3033 | case e1000_i350: | |
ceb5f13b | 3034 | case e1000_i354: |
374a542d | 3035 | case e1000_i210: |
f96a8a0b | 3036 | default: |
b980ac18 | 3037 | /* If rss_queues > half of max_rss_queues, pair the queues in |
374a542d MV |
3038 | * order to conserve interrupts due to limited supply. |
3039 | */ | |
3040 | if (adapter->rss_queues > (max_rss_queues / 2)) | |
3041 | adapter->flags |= IGB_FLAG_QUEUE_PAIRS; | |
37a5d163 SS |
3042 | else |
3043 | adapter->flags &= ~IGB_FLAG_QUEUE_PAIRS; | |
f96a8a0b CW |
3044 | break; |
3045 | } | |
fa44f2f1 GR |
3046 | } |
3047 | ||
3048 | /** | |
b980ac18 JK |
3049 | * igb_sw_init - Initialize general software structures (struct igb_adapter) |
3050 | * @adapter: board private structure to initialize | |
fa44f2f1 | 3051 | * |
b980ac18 JK |
3052 | * igb_sw_init initializes the Adapter private data structure. |
3053 | * Fields are initialized based on PCI device information and | |
3054 | * OS network device settings (MTU size). | |
fa44f2f1 GR |
3055 | **/ |
3056 | static int igb_sw_init(struct igb_adapter *adapter) | |
3057 | { | |
3058 | struct e1000_hw *hw = &adapter->hw; | |
3059 | struct net_device *netdev = adapter->netdev; | |
3060 | struct pci_dev *pdev = adapter->pdev; | |
3061 | ||
3062 | pci_read_config_word(pdev, PCI_COMMAND, &hw->bus.pci_cmd_word); | |
3063 | ||
3064 | /* set default ring sizes */ | |
3065 | adapter->tx_ring_count = IGB_DEFAULT_TXD; | |
3066 | adapter->rx_ring_count = IGB_DEFAULT_RXD; | |
3067 | ||
3068 | /* set default ITR values */ | |
3069 | adapter->rx_itr_setting = IGB_DEFAULT_ITR; | |
3070 | adapter->tx_itr_setting = IGB_DEFAULT_ITR; | |
3071 | ||
3072 | /* set default work limits */ | |
3073 | adapter->tx_work_limit = IGB_DEFAULT_TX_WORK; | |
3074 | ||
3075 | adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN + | |
3076 | VLAN_HLEN; | |
3077 | adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN; | |
3078 | ||
0e71def2 | 3079 | spin_lock_init(&adapter->nfc_lock); |
fa44f2f1 GR |
3080 | spin_lock_init(&adapter->stats64_lock); |
3081 | #ifdef CONFIG_PCI_IOV | |
3082 | switch (hw->mac.type) { | |
3083 | case e1000_82576: | |
3084 | case e1000_i350: | |
3085 | if (max_vfs > 7) { | |
3086 | dev_warn(&pdev->dev, | |
3087 | "Maximum of 7 VFs per PF, using max\n"); | |
d0f63acc | 3088 | max_vfs = adapter->vfs_allocated_count = 7; |
fa44f2f1 GR |
3089 | } else |
3090 | adapter->vfs_allocated_count = max_vfs; | |
3091 | if (adapter->vfs_allocated_count) | |
3092 | dev_warn(&pdev->dev, | |
3093 | "Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.\n"); | |
3094 | break; | |
3095 | default: | |
3096 | break; | |
3097 | } | |
3098 | #endif /* CONFIG_PCI_IOV */ | |
3099 | ||
cbfe360a SA |
3100 | /* Assume MSI-X interrupts, will be checked during IRQ allocation */ |
3101 | adapter->flags |= IGB_FLAG_HAS_MSIX; | |
3102 | ||
ceee3450 TF |
3103 | igb_probe_vfs(adapter); |
3104 | ||
fa44f2f1 | 3105 | igb_init_queue_configuration(adapter); |
a99955fc | 3106 | |
1128c756 | 3107 | /* Setup and initialize a copy of the hw vlan table array */ |
b2adaca9 JP |
3108 | adapter->shadow_vfta = kcalloc(E1000_VLAN_FILTER_TBL_SIZE, sizeof(u32), |
3109 | GFP_ATOMIC); | |
1128c756 | 3110 | |
a6b623e0 | 3111 | /* This call may decrease the number of queues */ |
53c7d064 | 3112 | if (igb_init_interrupt_scheme(adapter, true)) { |
9d5c8243 AK |
3113 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
3114 | return -ENOMEM; | |
3115 | } | |
3116 | ||
3117 | /* Explicitly disable IRQ since the NIC can be in any state. */ | |
3118 | igb_irq_disable(adapter); | |
3119 | ||
f96a8a0b | 3120 | if (hw->mac.type >= e1000_i350) |
831ec0b4 CW |
3121 | adapter->flags &= ~IGB_FLAG_DMAC; |
3122 | ||
9d5c8243 AK |
3123 | set_bit(__IGB_DOWN, &adapter->state); |
3124 | return 0; | |
3125 | } | |
3126 | ||
3127 | /** | |
b980ac18 JK |
3128 | * igb_open - Called when a network interface is made active |
3129 | * @netdev: network interface device structure | |
9d5c8243 | 3130 | * |
b980ac18 | 3131 | * Returns 0 on success, negative value on failure |
9d5c8243 | 3132 | * |
b980ac18 JK |
3133 | * The open entry point is called when a network interface is made |
3134 | * active by the system (IFF_UP). At this point all resources needed | |
3135 | * for transmit and receive operations are allocated, the interrupt | |
3136 | * handler is registered with the OS, the watchdog timer is started, | |
3137 | * and the stack is notified that the interface is ready. | |
9d5c8243 | 3138 | **/ |
749ab2cd | 3139 | static int __igb_open(struct net_device *netdev, bool resuming) |
9d5c8243 AK |
3140 | { |
3141 | struct igb_adapter *adapter = netdev_priv(netdev); | |
3142 | struct e1000_hw *hw = &adapter->hw; | |
749ab2cd | 3143 | struct pci_dev *pdev = adapter->pdev; |
9d5c8243 AK |
3144 | int err; |
3145 | int i; | |
3146 | ||
3147 | /* disallow open during test */ | |
749ab2cd YZ |
3148 | if (test_bit(__IGB_TESTING, &adapter->state)) { |
3149 | WARN_ON(resuming); | |
9d5c8243 | 3150 | return -EBUSY; |
749ab2cd YZ |
3151 | } |
3152 | ||
3153 | if (!resuming) | |
3154 | pm_runtime_get_sync(&pdev->dev); | |
9d5c8243 | 3155 | |
b168dfc5 JB |
3156 | netif_carrier_off(netdev); |
3157 | ||
9d5c8243 AK |
3158 | /* allocate transmit descriptors */ |
3159 | err = igb_setup_all_tx_resources(adapter); | |
3160 | if (err) | |
3161 | goto err_setup_tx; | |
3162 | ||
3163 | /* allocate receive descriptors */ | |
3164 | err = igb_setup_all_rx_resources(adapter); | |
3165 | if (err) | |
3166 | goto err_setup_rx; | |
3167 | ||
88a268c1 | 3168 | igb_power_up_link(adapter); |
9d5c8243 | 3169 | |
9d5c8243 AK |
3170 | /* before we allocate an interrupt, we must be ready to handle it. |
3171 | * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt | |
3172 | * as soon as we call pci_request_irq, so we have to setup our | |
b980ac18 JK |
3173 | * clean_rx handler before we do so. |
3174 | */ | |
9d5c8243 AK |
3175 | igb_configure(adapter); |
3176 | ||
3177 | err = igb_request_irq(adapter); | |
3178 | if (err) | |
3179 | goto err_req_irq; | |
3180 | ||
0c2cc02e AD |
3181 | /* Notify the stack of the actual queue counts. */ |
3182 | err = netif_set_real_num_tx_queues(adapter->netdev, | |
3183 | adapter->num_tx_queues); | |
3184 | if (err) | |
3185 | goto err_set_queues; | |
3186 | ||
3187 | err = netif_set_real_num_rx_queues(adapter->netdev, | |
3188 | adapter->num_rx_queues); | |
3189 | if (err) | |
3190 | goto err_set_queues; | |
3191 | ||
9d5c8243 AK |
3192 | /* From here on the code is the same as igb_up() */ |
3193 | clear_bit(__IGB_DOWN, &adapter->state); | |
3194 | ||
0d1ae7f4 AD |
3195 | for (i = 0; i < adapter->num_q_vectors; i++) |
3196 | napi_enable(&(adapter->q_vector[i]->napi)); | |
9d5c8243 AK |
3197 | |
3198 | /* Clear any pending interrupts. */ | |
3199 | rd32(E1000_ICR); | |
844290e5 PW |
3200 | |
3201 | igb_irq_enable(adapter); | |
3202 | ||
d4960307 AD |
3203 | /* notify VFs that reset has been completed */ |
3204 | if (adapter->vfs_allocated_count) { | |
3205 | u32 reg_data = rd32(E1000_CTRL_EXT); | |
9005df38 | 3206 | |
d4960307 AD |
3207 | reg_data |= E1000_CTRL_EXT_PFRSTD; |
3208 | wr32(E1000_CTRL_EXT, reg_data); | |
3209 | } | |
3210 | ||
d55b53ff JK |
3211 | netif_tx_start_all_queues(netdev); |
3212 | ||
749ab2cd YZ |
3213 | if (!resuming) |
3214 | pm_runtime_put(&pdev->dev); | |
3215 | ||
25568a53 AD |
3216 | /* start the watchdog. */ |
3217 | hw->mac.get_link_status = 1; | |
3218 | schedule_work(&adapter->watchdog_task); | |
9d5c8243 AK |
3219 | |
3220 | return 0; | |
3221 | ||
0c2cc02e AD |
3222 | err_set_queues: |
3223 | igb_free_irq(adapter); | |
9d5c8243 AK |
3224 | err_req_irq: |
3225 | igb_release_hw_control(adapter); | |
88a268c1 | 3226 | igb_power_down_link(adapter); |
9d5c8243 AK |
3227 | igb_free_all_rx_resources(adapter); |
3228 | err_setup_rx: | |
3229 | igb_free_all_tx_resources(adapter); | |
3230 | err_setup_tx: | |
3231 | igb_reset(adapter); | |
749ab2cd YZ |
3232 | if (!resuming) |
3233 | pm_runtime_put(&pdev->dev); | |
9d5c8243 AK |
3234 | |
3235 | return err; | |
3236 | } | |
3237 | ||
46eafa59 | 3238 | int igb_open(struct net_device *netdev) |
749ab2cd YZ |
3239 | { |
3240 | return __igb_open(netdev, false); | |
3241 | } | |
3242 | ||
9d5c8243 | 3243 | /** |
b980ac18 JK |
3244 | * igb_close - Disables a network interface |
3245 | * @netdev: network interface device structure | |
9d5c8243 | 3246 | * |
b980ac18 | 3247 | * Returns 0, this is not allowed to fail |
9d5c8243 | 3248 | * |
b980ac18 JK |
3249 | * The close entry point is called when an interface is de-activated |
3250 | * by the OS. The hardware is still under the driver's control, but | |
3251 | * needs to be disabled. A global MAC reset is issued to stop the | |
3252 | * hardware, and all transmit and receive resources are freed. | |
9d5c8243 | 3253 | **/ |
749ab2cd | 3254 | static int __igb_close(struct net_device *netdev, bool suspending) |
9d5c8243 AK |
3255 | { |
3256 | struct igb_adapter *adapter = netdev_priv(netdev); | |
749ab2cd | 3257 | struct pci_dev *pdev = adapter->pdev; |
9d5c8243 AK |
3258 | |
3259 | WARN_ON(test_bit(__IGB_RESETTING, &adapter->state)); | |
9d5c8243 | 3260 | |
749ab2cd YZ |
3261 | if (!suspending) |
3262 | pm_runtime_get_sync(&pdev->dev); | |
3263 | ||
3264 | igb_down(adapter); | |
9d5c8243 AK |
3265 | igb_free_irq(adapter); |
3266 | ||
0e71def2 GH |
3267 | igb_nfc_filter_exit(adapter); |
3268 | ||
9d5c8243 AK |
3269 | igb_free_all_tx_resources(adapter); |
3270 | igb_free_all_rx_resources(adapter); | |
3271 | ||
749ab2cd YZ |
3272 | if (!suspending) |
3273 | pm_runtime_put_sync(&pdev->dev); | |
9d5c8243 AK |
3274 | return 0; |
3275 | } | |
3276 | ||
46eafa59 | 3277 | int igb_close(struct net_device *netdev) |
749ab2cd YZ |
3278 | { |
3279 | return __igb_close(netdev, false); | |
3280 | } | |
3281 | ||
9d5c8243 | 3282 | /** |
b980ac18 JK |
3283 | * igb_setup_tx_resources - allocate Tx resources (Descriptors) |
3284 | * @tx_ring: tx descriptor ring (for a specific queue) to setup | |
9d5c8243 | 3285 | * |
b980ac18 | 3286 | * Return 0 on success, negative on failure |
9d5c8243 | 3287 | **/ |
80785298 | 3288 | int igb_setup_tx_resources(struct igb_ring *tx_ring) |
9d5c8243 | 3289 | { |
59d71989 | 3290 | struct device *dev = tx_ring->dev; |
9d5c8243 AK |
3291 | int size; |
3292 | ||
06034649 | 3293 | size = sizeof(struct igb_tx_buffer) * tx_ring->count; |
f33005a6 AD |
3294 | |
3295 | tx_ring->tx_buffer_info = vzalloc(size); | |
06034649 | 3296 | if (!tx_ring->tx_buffer_info) |
9d5c8243 | 3297 | goto err; |
9d5c8243 AK |
3298 | |
3299 | /* round up to nearest 4K */ | |
85e8d004 | 3300 | tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc); |
9d5c8243 AK |
3301 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
3302 | ||
5536d210 AD |
3303 | tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, |
3304 | &tx_ring->dma, GFP_KERNEL); | |
9d5c8243 AK |
3305 | if (!tx_ring->desc) |
3306 | goto err; | |
3307 | ||
9d5c8243 AK |
3308 | tx_ring->next_to_use = 0; |
3309 | tx_ring->next_to_clean = 0; | |
81c2fc22 | 3310 | |
9d5c8243 AK |
3311 | return 0; |
3312 | ||
3313 | err: | |
06034649 | 3314 | vfree(tx_ring->tx_buffer_info); |
f33005a6 AD |
3315 | tx_ring->tx_buffer_info = NULL; |
3316 | dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); | |
9d5c8243 AK |
3317 | return -ENOMEM; |
3318 | } | |
3319 | ||
3320 | /** | |
b980ac18 JK |
3321 | * igb_setup_all_tx_resources - wrapper to allocate Tx resources |
3322 | * (Descriptors) for all queues | |
3323 | * @adapter: board private structure | |
9d5c8243 | 3324 | * |
b980ac18 | 3325 | * Return 0 on success, negative on failure |
9d5c8243 AK |
3326 | **/ |
3327 | static int igb_setup_all_tx_resources(struct igb_adapter *adapter) | |
3328 | { | |
439705e1 | 3329 | struct pci_dev *pdev = adapter->pdev; |
9d5c8243 AK |
3330 | int i, err = 0; |
3331 | ||
3332 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
3025a446 | 3333 | err = igb_setup_tx_resources(adapter->tx_ring[i]); |
9d5c8243 | 3334 | if (err) { |
439705e1 | 3335 | dev_err(&pdev->dev, |
9d5c8243 AK |
3336 | "Allocation for Tx Queue %u failed\n", i); |
3337 | for (i--; i >= 0; i--) | |
3025a446 | 3338 | igb_free_tx_resources(adapter->tx_ring[i]); |
9d5c8243 AK |
3339 | break; |
3340 | } | |
3341 | } | |
3342 | ||
3343 | return err; | |
3344 | } | |
3345 | ||
3346 | /** | |
b980ac18 JK |
3347 | * igb_setup_tctl - configure the transmit control registers |
3348 | * @adapter: Board private structure | |
9d5c8243 | 3349 | **/ |
d7ee5b3a | 3350 | void igb_setup_tctl(struct igb_adapter *adapter) |
9d5c8243 | 3351 | { |
9d5c8243 AK |
3352 | struct e1000_hw *hw = &adapter->hw; |
3353 | u32 tctl; | |
9d5c8243 | 3354 | |
85b430b4 AD |
3355 | /* disable queue 0 which is enabled by default on 82575 and 82576 */ |
3356 | wr32(E1000_TXDCTL(0), 0); | |
9d5c8243 AK |
3357 | |
3358 | /* Program the Transmit Control Register */ | |
9d5c8243 AK |
3359 | tctl = rd32(E1000_TCTL); |
3360 | tctl &= ~E1000_TCTL_CT; | |
3361 | tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC | | |
3362 | (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT); | |
3363 | ||
3364 | igb_config_collision_dist(hw); | |
3365 | ||
9d5c8243 AK |
3366 | /* Enable transmits */ |
3367 | tctl |= E1000_TCTL_EN; | |
3368 | ||
3369 | wr32(E1000_TCTL, tctl); | |
3370 | } | |
3371 | ||
85b430b4 | 3372 | /** |
b980ac18 JK |
3373 | * igb_configure_tx_ring - Configure transmit ring after Reset |
3374 | * @adapter: board private structure | |
3375 | * @ring: tx ring to configure | |
85b430b4 | 3376 | * |
b980ac18 | 3377 | * Configure a transmit ring after a reset. |
85b430b4 | 3378 | **/ |
d7ee5b3a | 3379 | void igb_configure_tx_ring(struct igb_adapter *adapter, |
9005df38 | 3380 | struct igb_ring *ring) |
85b430b4 AD |
3381 | { |
3382 | struct e1000_hw *hw = &adapter->hw; | |
a74420e0 | 3383 | u32 txdctl = 0; |
85b430b4 AD |
3384 | u64 tdba = ring->dma; |
3385 | int reg_idx = ring->reg_idx; | |
3386 | ||
3387 | /* disable the queue */ | |
a74420e0 | 3388 | wr32(E1000_TXDCTL(reg_idx), 0); |
85b430b4 AD |
3389 | wrfl(); |
3390 | mdelay(10); | |
3391 | ||
3392 | wr32(E1000_TDLEN(reg_idx), | |
b980ac18 | 3393 | ring->count * sizeof(union e1000_adv_tx_desc)); |
85b430b4 | 3394 | wr32(E1000_TDBAL(reg_idx), |
b980ac18 | 3395 | tdba & 0x00000000ffffffffULL); |
85b430b4 AD |
3396 | wr32(E1000_TDBAH(reg_idx), tdba >> 32); |
3397 | ||
fce99e34 | 3398 | ring->tail = hw->hw_addr + E1000_TDT(reg_idx); |
a74420e0 | 3399 | wr32(E1000_TDH(reg_idx), 0); |
fce99e34 | 3400 | writel(0, ring->tail); |
85b430b4 AD |
3401 | |
3402 | txdctl |= IGB_TX_PTHRESH; | |
3403 | txdctl |= IGB_TX_HTHRESH << 8; | |
3404 | txdctl |= IGB_TX_WTHRESH << 16; | |
3405 | ||
3406 | txdctl |= E1000_TXDCTL_QUEUE_ENABLE; | |
3407 | wr32(E1000_TXDCTL(reg_idx), txdctl); | |
3408 | } | |
3409 | ||
3410 | /** | |
b980ac18 JK |
3411 | * igb_configure_tx - Configure transmit Unit after Reset |
3412 | * @adapter: board private structure | |
85b430b4 | 3413 | * |
b980ac18 | 3414 | * Configure the Tx unit of the MAC after a reset. |
85b430b4 AD |
3415 | **/ |
3416 | static void igb_configure_tx(struct igb_adapter *adapter) | |
3417 | { | |
3418 | int i; | |
3419 | ||
3420 | for (i = 0; i < adapter->num_tx_queues; i++) | |
3025a446 | 3421 | igb_configure_tx_ring(adapter, adapter->tx_ring[i]); |
85b430b4 AD |
3422 | } |
3423 | ||
9d5c8243 | 3424 | /** |
b980ac18 JK |
3425 | * igb_setup_rx_resources - allocate Rx resources (Descriptors) |
3426 | * @rx_ring: Rx descriptor ring (for a specific queue) to setup | |
9d5c8243 | 3427 | * |
b980ac18 | 3428 | * Returns 0 on success, negative on failure |
9d5c8243 | 3429 | **/ |
80785298 | 3430 | int igb_setup_rx_resources(struct igb_ring *rx_ring) |
9d5c8243 | 3431 | { |
59d71989 | 3432 | struct device *dev = rx_ring->dev; |
f33005a6 | 3433 | int size; |
9d5c8243 | 3434 | |
06034649 | 3435 | size = sizeof(struct igb_rx_buffer) * rx_ring->count; |
f33005a6 AD |
3436 | |
3437 | rx_ring->rx_buffer_info = vzalloc(size); | |
06034649 | 3438 | if (!rx_ring->rx_buffer_info) |
9d5c8243 | 3439 | goto err; |
9d5c8243 | 3440 | |
9d5c8243 | 3441 | /* Round up to nearest 4K */ |
f33005a6 | 3442 | rx_ring->size = rx_ring->count * sizeof(union e1000_adv_rx_desc); |
9d5c8243 AK |
3443 | rx_ring->size = ALIGN(rx_ring->size, 4096); |
3444 | ||
5536d210 AD |
3445 | rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, |
3446 | &rx_ring->dma, GFP_KERNEL); | |
9d5c8243 AK |
3447 | if (!rx_ring->desc) |
3448 | goto err; | |
3449 | ||
cbc8e55f | 3450 | rx_ring->next_to_alloc = 0; |
9d5c8243 AK |
3451 | rx_ring->next_to_clean = 0; |
3452 | rx_ring->next_to_use = 0; | |
9d5c8243 | 3453 | |
9d5c8243 AK |
3454 | return 0; |
3455 | ||
3456 | err: | |
06034649 AD |
3457 | vfree(rx_ring->rx_buffer_info); |
3458 | rx_ring->rx_buffer_info = NULL; | |
f33005a6 | 3459 | dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); |
9d5c8243 AK |
3460 | return -ENOMEM; |
3461 | } | |
3462 | ||
3463 | /** | |
b980ac18 JK |
3464 | * igb_setup_all_rx_resources - wrapper to allocate Rx resources |
3465 | * (Descriptors) for all queues | |
3466 | * @adapter: board private structure | |
9d5c8243 | 3467 | * |
b980ac18 | 3468 | * Return 0 on success, negative on failure |
9d5c8243 AK |
3469 | **/ |
3470 | static int igb_setup_all_rx_resources(struct igb_adapter *adapter) | |
3471 | { | |
439705e1 | 3472 | struct pci_dev *pdev = adapter->pdev; |
9d5c8243 AK |
3473 | int i, err = 0; |
3474 | ||
3475 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
3025a446 | 3476 | err = igb_setup_rx_resources(adapter->rx_ring[i]); |
9d5c8243 | 3477 | if (err) { |
439705e1 | 3478 | dev_err(&pdev->dev, |
9d5c8243 AK |
3479 | "Allocation for Rx Queue %u failed\n", i); |
3480 | for (i--; i >= 0; i--) | |
3025a446 | 3481 | igb_free_rx_resources(adapter->rx_ring[i]); |
9d5c8243 AK |
3482 | break; |
3483 | } | |
3484 | } | |
3485 | ||
3486 | return err; | |
3487 | } | |
3488 | ||
06cf2666 | 3489 | /** |
b980ac18 JK |
3490 | * igb_setup_mrqc - configure the multiple receive queue control registers |
3491 | * @adapter: Board private structure | |
06cf2666 AD |
3492 | **/ |
3493 | static void igb_setup_mrqc(struct igb_adapter *adapter) | |
3494 | { | |
3495 | struct e1000_hw *hw = &adapter->hw; | |
3496 | u32 mrqc, rxcsum; | |
ed12cc9a | 3497 | u32 j, num_rx_queues; |
eb31f849 | 3498 | u32 rss_key[10]; |
06cf2666 | 3499 | |
eb31f849 | 3500 | netdev_rss_key_fill(rss_key, sizeof(rss_key)); |
a57fe23e | 3501 | for (j = 0; j < 10; j++) |
eb31f849 | 3502 | wr32(E1000_RSSRK(j), rss_key[j]); |
06cf2666 | 3503 | |
a99955fc | 3504 | num_rx_queues = adapter->rss_queues; |
06cf2666 | 3505 | |
797fd4be | 3506 | switch (hw->mac.type) { |
797fd4be AD |
3507 | case e1000_82576: |
3508 | /* 82576 supports 2 RSS queues for SR-IOV */ | |
ed12cc9a | 3509 | if (adapter->vfs_allocated_count) |
06cf2666 | 3510 | num_rx_queues = 2; |
797fd4be AD |
3511 | break; |
3512 | default: | |
3513 | break; | |
06cf2666 AD |
3514 | } |
3515 | ||
ed12cc9a LMV |
3516 | if (adapter->rss_indir_tbl_init != num_rx_queues) { |
3517 | for (j = 0; j < IGB_RETA_SIZE; j++) | |
c502ea2e CW |
3518 | adapter->rss_indir_tbl[j] = |
3519 | (j * num_rx_queues) / IGB_RETA_SIZE; | |
ed12cc9a | 3520 | adapter->rss_indir_tbl_init = num_rx_queues; |
06cf2666 | 3521 | } |
ed12cc9a | 3522 | igb_write_rss_indir_tbl(adapter); |
06cf2666 | 3523 | |
b980ac18 | 3524 | /* Disable raw packet checksumming so that RSS hash is placed in |
06cf2666 AD |
3525 | * descriptor on writeback. No need to enable TCP/UDP/IP checksum |
3526 | * offloads as they are enabled by default | |
3527 | */ | |
3528 | rxcsum = rd32(E1000_RXCSUM); | |
3529 | rxcsum |= E1000_RXCSUM_PCSD; | |
3530 | ||
3531 | if (adapter->hw.mac.type >= e1000_82576) | |
3532 | /* Enable Receive Checksum Offload for SCTP */ | |
3533 | rxcsum |= E1000_RXCSUM_CRCOFL; | |
3534 | ||
3535 | /* Don't need to set TUOFL or IPOFL, they default to 1 */ | |
3536 | wr32(E1000_RXCSUM, rxcsum); | |
f96a8a0b | 3537 | |
039454a8 AA |
3538 | /* Generate RSS hash based on packet types, TCP/UDP |
3539 | * port numbers and/or IPv4/v6 src and dst addresses | |
3540 | */ | |
f96a8a0b CW |
3541 | mrqc = E1000_MRQC_RSS_FIELD_IPV4 | |
3542 | E1000_MRQC_RSS_FIELD_IPV4_TCP | | |
3543 | E1000_MRQC_RSS_FIELD_IPV6 | | |
3544 | E1000_MRQC_RSS_FIELD_IPV6_TCP | | |
3545 | E1000_MRQC_RSS_FIELD_IPV6_TCP_EX; | |
06cf2666 | 3546 | |
039454a8 AA |
3547 | if (adapter->flags & IGB_FLAG_RSS_FIELD_IPV4_UDP) |
3548 | mrqc |= E1000_MRQC_RSS_FIELD_IPV4_UDP; | |
3549 | if (adapter->flags & IGB_FLAG_RSS_FIELD_IPV6_UDP) | |
3550 | mrqc |= E1000_MRQC_RSS_FIELD_IPV6_UDP; | |
3551 | ||
06cf2666 AD |
3552 | /* If VMDq is enabled then we set the appropriate mode for that, else |
3553 | * we default to RSS so that an RSS hash is calculated per packet even | |
b980ac18 JK |
3554 | * if we are only using one queue |
3555 | */ | |
06cf2666 AD |
3556 | if (adapter->vfs_allocated_count) { |
3557 | if (hw->mac.type > e1000_82575) { | |
3558 | /* Set the default pool for the PF's first queue */ | |
3559 | u32 vtctl = rd32(E1000_VT_CTL); | |
9005df38 | 3560 | |
06cf2666 AD |
3561 | vtctl &= ~(E1000_VT_CTL_DEFAULT_POOL_MASK | |
3562 | E1000_VT_CTL_DISABLE_DEF_POOL); | |
3563 | vtctl |= adapter->vfs_allocated_count << | |
3564 | E1000_VT_CTL_DEFAULT_POOL_SHIFT; | |
3565 | wr32(E1000_VT_CTL, vtctl); | |
3566 | } | |
a99955fc | 3567 | if (adapter->rss_queues > 1) |
c883de9f | 3568 | mrqc |= E1000_MRQC_ENABLE_VMDQ_RSS_MQ; |
06cf2666 | 3569 | else |
f96a8a0b | 3570 | mrqc |= E1000_MRQC_ENABLE_VMDQ; |
06cf2666 | 3571 | } else { |
f96a8a0b | 3572 | if (hw->mac.type != e1000_i211) |
c883de9f | 3573 | mrqc |= E1000_MRQC_ENABLE_RSS_MQ; |
06cf2666 AD |
3574 | } |
3575 | igb_vmm_control(adapter); | |
3576 | ||
06cf2666 AD |
3577 | wr32(E1000_MRQC, mrqc); |
3578 | } | |
3579 | ||
9d5c8243 | 3580 | /** |
b980ac18 JK |
3581 | * igb_setup_rctl - configure the receive control registers |
3582 | * @adapter: Board private structure | |
9d5c8243 | 3583 | **/ |
d7ee5b3a | 3584 | void igb_setup_rctl(struct igb_adapter *adapter) |
9d5c8243 AK |
3585 | { |
3586 | struct e1000_hw *hw = &adapter->hw; | |
3587 | u32 rctl; | |
9d5c8243 AK |
3588 | |
3589 | rctl = rd32(E1000_RCTL); | |
3590 | ||
3591 | rctl &= ~(3 << E1000_RCTL_MO_SHIFT); | |
69d728ba | 3592 | rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); |
9d5c8243 | 3593 | |
69d728ba | 3594 | rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_RDMTS_HALF | |
28b0759c | 3595 | (hw->mac.mc_filter_type << E1000_RCTL_MO_SHIFT); |
9d5c8243 | 3596 | |
b980ac18 | 3597 | /* enable stripping of CRC. It's unlikely this will break BMC |
87cb7e8c AK |
3598 | * redirection as it did with e1000. Newer features require |
3599 | * that the HW strips the CRC. | |
73cd78f1 | 3600 | */ |
87cb7e8c | 3601 | rctl |= E1000_RCTL_SECRC; |
9d5c8243 | 3602 | |
559e9c49 | 3603 | /* disable store bad packets and clear size bits. */ |
ec54d7d6 | 3604 | rctl &= ~(E1000_RCTL_SBP | E1000_RCTL_SZ_256); |
9d5c8243 | 3605 | |
45693bcb | 3606 | /* enable LPE to allow for reception of jumbo frames */ |
6ec43fe6 | 3607 | rctl |= E1000_RCTL_LPE; |
9d5c8243 | 3608 | |
952f72a8 AD |
3609 | /* disable queue 0 to prevent tail write w/o re-config */ |
3610 | wr32(E1000_RXDCTL(0), 0); | |
9d5c8243 | 3611 | |
e1739522 AD |
3612 | /* Attention!!! For SR-IOV PF driver operations you must enable |
3613 | * queue drop for all VF and PF queues to prevent head of line blocking | |
3614 | * if an un-trusted VF does not provide descriptors to hardware. | |
3615 | */ | |
3616 | if (adapter->vfs_allocated_count) { | |
e1739522 AD |
3617 | /* set all queue drop enable bits */ |
3618 | wr32(E1000_QDE, ALL_QUEUES); | |
e1739522 AD |
3619 | } |
3620 | ||
89eaefb6 BG |
3621 | /* This is useful for sniffing bad packets. */ |
3622 | if (adapter->netdev->features & NETIF_F_RXALL) { | |
3623 | /* UPE and MPE will be handled by normal PROMISC logic | |
b980ac18 JK |
3624 | * in e1000e_set_rx_mode |
3625 | */ | |
89eaefb6 BG |
3626 | rctl |= (E1000_RCTL_SBP | /* Receive bad packets */ |
3627 | E1000_RCTL_BAM | /* RX All Bcast Pkts */ | |
3628 | E1000_RCTL_PMCF); /* RX All MAC Ctrl Pkts */ | |
3629 | ||
16903caa | 3630 | rctl &= ~(E1000_RCTL_DPF | /* Allow filtered pause */ |
89eaefb6 BG |
3631 | E1000_RCTL_CFIEN); /* Dis VLAN CFIEN Filter */ |
3632 | /* Do not mess with E1000_CTRL_VME, it affects transmit as well, | |
3633 | * and that breaks VLANs. | |
3634 | */ | |
3635 | } | |
3636 | ||
9d5c8243 AK |
3637 | wr32(E1000_RCTL, rctl); |
3638 | } | |
3639 | ||
7d5753f0 | 3640 | static inline int igb_set_vf_rlpml(struct igb_adapter *adapter, int size, |
9005df38 | 3641 | int vfn) |
7d5753f0 AD |
3642 | { |
3643 | struct e1000_hw *hw = &adapter->hw; | |
3644 | u32 vmolr; | |
3645 | ||
d3836f8e AD |
3646 | if (size > MAX_JUMBO_FRAME_SIZE) |
3647 | size = MAX_JUMBO_FRAME_SIZE; | |
7d5753f0 AD |
3648 | |
3649 | vmolr = rd32(E1000_VMOLR(vfn)); | |
3650 | vmolr &= ~E1000_VMOLR_RLPML_MASK; | |
3651 | vmolr |= size | E1000_VMOLR_LPE; | |
3652 | wr32(E1000_VMOLR(vfn), vmolr); | |
3653 | ||
3654 | return 0; | |
3655 | } | |
3656 | ||
030f9f52 CV |
3657 | static inline void igb_set_vf_vlan_strip(struct igb_adapter *adapter, |
3658 | int vfn, bool enable) | |
e1739522 | 3659 | { |
e1739522 | 3660 | struct e1000_hw *hw = &adapter->hw; |
030f9f52 | 3661 | u32 val, reg; |
e1739522 | 3662 | |
030f9f52 CV |
3663 | if (hw->mac.type < e1000_82576) |
3664 | return; | |
e1739522 | 3665 | |
030f9f52 CV |
3666 | if (hw->mac.type == e1000_i350) |
3667 | reg = E1000_DVMOLR(vfn); | |
3668 | else | |
3669 | reg = E1000_VMOLR(vfn); | |
3670 | ||
3671 | val = rd32(reg); | |
3672 | if (enable) | |
3673 | val |= E1000_VMOLR_STRVLAN; | |
3674 | else | |
3675 | val &= ~(E1000_VMOLR_STRVLAN); | |
3676 | wr32(reg, val); | |
e1739522 AD |
3677 | } |
3678 | ||
8151d294 WM |
3679 | static inline void igb_set_vmolr(struct igb_adapter *adapter, |
3680 | int vfn, bool aupe) | |
7d5753f0 AD |
3681 | { |
3682 | struct e1000_hw *hw = &adapter->hw; | |
3683 | u32 vmolr; | |
3684 | ||
b980ac18 | 3685 | /* This register exists only on 82576 and newer so if we are older then |
7d5753f0 AD |
3686 | * we should exit and do nothing |
3687 | */ | |
3688 | if (hw->mac.type < e1000_82576) | |
3689 | return; | |
3690 | ||
3691 | vmolr = rd32(E1000_VMOLR(vfn)); | |
8151d294 | 3692 | if (aupe) |
b980ac18 | 3693 | vmolr |= E1000_VMOLR_AUPE; /* Accept untagged packets */ |
8151d294 WM |
3694 | else |
3695 | vmolr &= ~(E1000_VMOLR_AUPE); /* Tagged packets ONLY */ | |
7d5753f0 AD |
3696 | |
3697 | /* clear all bits that might not be set */ | |
3698 | vmolr &= ~(E1000_VMOLR_BAM | E1000_VMOLR_RSSE); | |
3699 | ||
a99955fc | 3700 | if (adapter->rss_queues > 1 && vfn == adapter->vfs_allocated_count) |
7d5753f0 | 3701 | vmolr |= E1000_VMOLR_RSSE; /* enable RSS */ |
b980ac18 | 3702 | /* for VMDq only allow the VFs and pool 0 to accept broadcast and |
7d5753f0 AD |
3703 | * multicast packets |
3704 | */ | |
3705 | if (vfn <= adapter->vfs_allocated_count) | |
b980ac18 | 3706 | vmolr |= E1000_VMOLR_BAM; /* Accept broadcast */ |
7d5753f0 AD |
3707 | |
3708 | wr32(E1000_VMOLR(vfn), vmolr); | |
3709 | } | |
3710 | ||
85b430b4 | 3711 | /** |
b980ac18 JK |
3712 | * igb_configure_rx_ring - Configure a receive ring after Reset |
3713 | * @adapter: board private structure | |
3714 | * @ring: receive ring to be configured | |
85b430b4 | 3715 | * |
b980ac18 | 3716 | * Configure the Rx unit of the MAC after a reset. |
85b430b4 | 3717 | **/ |
d7ee5b3a | 3718 | void igb_configure_rx_ring(struct igb_adapter *adapter, |
b980ac18 | 3719 | struct igb_ring *ring) |
85b430b4 AD |
3720 | { |
3721 | struct e1000_hw *hw = &adapter->hw; | |
3722 | u64 rdba = ring->dma; | |
3723 | int reg_idx = ring->reg_idx; | |
a74420e0 | 3724 | u32 srrctl = 0, rxdctl = 0; |
85b430b4 AD |
3725 | |
3726 | /* disable the queue */ | |
a74420e0 | 3727 | wr32(E1000_RXDCTL(reg_idx), 0); |
85b430b4 AD |
3728 | |
3729 | /* Set DMA base address registers */ | |
3730 | wr32(E1000_RDBAL(reg_idx), | |
3731 | rdba & 0x00000000ffffffffULL); | |
3732 | wr32(E1000_RDBAH(reg_idx), rdba >> 32); | |
3733 | wr32(E1000_RDLEN(reg_idx), | |
b980ac18 | 3734 | ring->count * sizeof(union e1000_adv_rx_desc)); |
85b430b4 AD |
3735 | |
3736 | /* initialize head and tail */ | |
fce99e34 | 3737 | ring->tail = hw->hw_addr + E1000_RDT(reg_idx); |
a74420e0 | 3738 | wr32(E1000_RDH(reg_idx), 0); |
fce99e34 | 3739 | writel(0, ring->tail); |
85b430b4 | 3740 | |
952f72a8 | 3741 | /* set descriptor configuration */ |
44390ca6 | 3742 | srrctl = IGB_RX_HDR_LEN << E1000_SRRCTL_BSIZEHDRSIZE_SHIFT; |
de78d1f9 | 3743 | srrctl |= IGB_RX_BUFSZ >> E1000_SRRCTL_BSIZEPKT_SHIFT; |
1a1c225b | 3744 | srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF; |
06218a8d | 3745 | if (hw->mac.type >= e1000_82580) |
757b77e2 | 3746 | srrctl |= E1000_SRRCTL_TIMESTAMP; |
e6bdb6fe NN |
3747 | /* Only set Drop Enable if we are supporting multiple queues */ |
3748 | if (adapter->vfs_allocated_count || adapter->num_rx_queues > 1) | |
3749 | srrctl |= E1000_SRRCTL_DROP_EN; | |
952f72a8 AD |
3750 | |
3751 | wr32(E1000_SRRCTL(reg_idx), srrctl); | |
3752 | ||
7d5753f0 | 3753 | /* set filtering for VMDQ pools */ |
8151d294 | 3754 | igb_set_vmolr(adapter, reg_idx & 0x7, true); |
7d5753f0 | 3755 | |
85b430b4 AD |
3756 | rxdctl |= IGB_RX_PTHRESH; |
3757 | rxdctl |= IGB_RX_HTHRESH << 8; | |
3758 | rxdctl |= IGB_RX_WTHRESH << 16; | |
a74420e0 AD |
3759 | |
3760 | /* enable receive descriptor fetching */ | |
3761 | rxdctl |= E1000_RXDCTL_QUEUE_ENABLE; | |
85b430b4 AD |
3762 | wr32(E1000_RXDCTL(reg_idx), rxdctl); |
3763 | } | |
3764 | ||
9d5c8243 | 3765 | /** |
b980ac18 JK |
3766 | * igb_configure_rx - Configure receive Unit after Reset |
3767 | * @adapter: board private structure | |
9d5c8243 | 3768 | * |
b980ac18 | 3769 | * Configure the Rx unit of the MAC after a reset. |
9d5c8243 AK |
3770 | **/ |
3771 | static void igb_configure_rx(struct igb_adapter *adapter) | |
3772 | { | |
9107584e | 3773 | int i; |
9d5c8243 | 3774 | |
26ad9178 AD |
3775 | /* set the correct pool for the PF default MAC address in entry 0 */ |
3776 | igb_rar_set_qsel(adapter, adapter->hw.mac.addr, 0, | |
b980ac18 | 3777 | adapter->vfs_allocated_count); |
26ad9178 | 3778 | |
06cf2666 | 3779 | /* Setup the HW Rx Head and Tail Descriptor Pointers and |
b980ac18 JK |
3780 | * the Base and Length of the Rx Descriptor Ring |
3781 | */ | |
f9d40f6a AD |
3782 | for (i = 0; i < adapter->num_rx_queues; i++) |
3783 | igb_configure_rx_ring(adapter, adapter->rx_ring[i]); | |
9d5c8243 AK |
3784 | } |
3785 | ||
3786 | /** | |
b980ac18 JK |
3787 | * igb_free_tx_resources - Free Tx Resources per Queue |
3788 | * @tx_ring: Tx descriptor ring for a specific queue | |
9d5c8243 | 3789 | * |
b980ac18 | 3790 | * Free all transmit software resources |
9d5c8243 | 3791 | **/ |
68fd9910 | 3792 | void igb_free_tx_resources(struct igb_ring *tx_ring) |
9d5c8243 | 3793 | { |
3b644cf6 | 3794 | igb_clean_tx_ring(tx_ring); |
9d5c8243 | 3795 | |
06034649 AD |
3796 | vfree(tx_ring->tx_buffer_info); |
3797 | tx_ring->tx_buffer_info = NULL; | |
9d5c8243 | 3798 | |
439705e1 AD |
3799 | /* if not set, then don't free */ |
3800 | if (!tx_ring->desc) | |
3801 | return; | |
3802 | ||
59d71989 AD |
3803 | dma_free_coherent(tx_ring->dev, tx_ring->size, |
3804 | tx_ring->desc, tx_ring->dma); | |
9d5c8243 AK |
3805 | |
3806 | tx_ring->desc = NULL; | |
3807 | } | |
3808 | ||
3809 | /** | |
b980ac18 JK |
3810 | * igb_free_all_tx_resources - Free Tx Resources for All Queues |
3811 | * @adapter: board private structure | |
9d5c8243 | 3812 | * |
b980ac18 | 3813 | * Free all transmit software resources |
9d5c8243 AK |
3814 | **/ |
3815 | static void igb_free_all_tx_resources(struct igb_adapter *adapter) | |
3816 | { | |
3817 | int i; | |
3818 | ||
3819 | for (i = 0; i < adapter->num_tx_queues; i++) | |
17a402a0 CW |
3820 | if (adapter->tx_ring[i]) |
3821 | igb_free_tx_resources(adapter->tx_ring[i]); | |
9d5c8243 AK |
3822 | } |
3823 | ||
ebe42d16 AD |
3824 | void igb_unmap_and_free_tx_resource(struct igb_ring *ring, |
3825 | struct igb_tx_buffer *tx_buffer) | |
3826 | { | |
3827 | if (tx_buffer->skb) { | |
3828 | dev_kfree_skb_any(tx_buffer->skb); | |
c9f14bf3 | 3829 | if (dma_unmap_len(tx_buffer, len)) |
ebe42d16 | 3830 | dma_unmap_single(ring->dev, |
c9f14bf3 AD |
3831 | dma_unmap_addr(tx_buffer, dma), |
3832 | dma_unmap_len(tx_buffer, len), | |
ebe42d16 | 3833 | DMA_TO_DEVICE); |
c9f14bf3 | 3834 | } else if (dma_unmap_len(tx_buffer, len)) { |
ebe42d16 | 3835 | dma_unmap_page(ring->dev, |
c9f14bf3 AD |
3836 | dma_unmap_addr(tx_buffer, dma), |
3837 | dma_unmap_len(tx_buffer, len), | |
ebe42d16 AD |
3838 | DMA_TO_DEVICE); |
3839 | } | |
3840 | tx_buffer->next_to_watch = NULL; | |
3841 | tx_buffer->skb = NULL; | |
c9f14bf3 | 3842 | dma_unmap_len_set(tx_buffer, len, 0); |
ebe42d16 | 3843 | /* buffer_info must be completely set up in the transmit path */ |
9d5c8243 AK |
3844 | } |
3845 | ||
3846 | /** | |
b980ac18 JK |
3847 | * igb_clean_tx_ring - Free Tx Buffers |
3848 | * @tx_ring: ring to be cleaned | |
9d5c8243 | 3849 | **/ |
3b644cf6 | 3850 | static void igb_clean_tx_ring(struct igb_ring *tx_ring) |
9d5c8243 | 3851 | { |
06034649 | 3852 | struct igb_tx_buffer *buffer_info; |
9d5c8243 | 3853 | unsigned long size; |
6ad4edfc | 3854 | u16 i; |
9d5c8243 | 3855 | |
06034649 | 3856 | if (!tx_ring->tx_buffer_info) |
9d5c8243 AK |
3857 | return; |
3858 | /* Free all the Tx ring sk_buffs */ | |
3859 | ||
3860 | for (i = 0; i < tx_ring->count; i++) { | |
06034649 | 3861 | buffer_info = &tx_ring->tx_buffer_info[i]; |
80785298 | 3862 | igb_unmap_and_free_tx_resource(tx_ring, buffer_info); |
9d5c8243 AK |
3863 | } |
3864 | ||
dad8a3b3 JF |
3865 | netdev_tx_reset_queue(txring_txq(tx_ring)); |
3866 | ||
06034649 AD |
3867 | size = sizeof(struct igb_tx_buffer) * tx_ring->count; |
3868 | memset(tx_ring->tx_buffer_info, 0, size); | |
9d5c8243 AK |
3869 | |
3870 | /* Zero out the descriptor ring */ | |
9d5c8243 AK |
3871 | memset(tx_ring->desc, 0, tx_ring->size); |
3872 | ||
3873 | tx_ring->next_to_use = 0; | |
3874 | tx_ring->next_to_clean = 0; | |
9d5c8243 AK |
3875 | } |
3876 | ||
3877 | /** | |
b980ac18 JK |
3878 | * igb_clean_all_tx_rings - Free Tx Buffers for all queues |
3879 | * @adapter: board private structure | |
9d5c8243 AK |
3880 | **/ |
3881 | static void igb_clean_all_tx_rings(struct igb_adapter *adapter) | |
3882 | { | |
3883 | int i; | |
3884 | ||
3885 | for (i = 0; i < adapter->num_tx_queues; i++) | |
17a402a0 CW |
3886 | if (adapter->tx_ring[i]) |
3887 | igb_clean_tx_ring(adapter->tx_ring[i]); | |
9d5c8243 AK |
3888 | } |
3889 | ||
3890 | /** | |
b980ac18 JK |
3891 | * igb_free_rx_resources - Free Rx Resources |
3892 | * @rx_ring: ring to clean the resources from | |
9d5c8243 | 3893 | * |
b980ac18 | 3894 | * Free all receive software resources |
9d5c8243 | 3895 | **/ |
68fd9910 | 3896 | void igb_free_rx_resources(struct igb_ring *rx_ring) |
9d5c8243 | 3897 | { |
3b644cf6 | 3898 | igb_clean_rx_ring(rx_ring); |
9d5c8243 | 3899 | |
06034649 AD |
3900 | vfree(rx_ring->rx_buffer_info); |
3901 | rx_ring->rx_buffer_info = NULL; | |
9d5c8243 | 3902 | |
439705e1 AD |
3903 | /* if not set, then don't free */ |
3904 | if (!rx_ring->desc) | |
3905 | return; | |
3906 | ||
59d71989 AD |
3907 | dma_free_coherent(rx_ring->dev, rx_ring->size, |
3908 | rx_ring->desc, rx_ring->dma); | |
9d5c8243 AK |
3909 | |
3910 | rx_ring->desc = NULL; | |
3911 | } | |
3912 | ||
3913 | /** | |
b980ac18 JK |
3914 | * igb_free_all_rx_resources - Free Rx Resources for All Queues |
3915 | * @adapter: board private structure | |
9d5c8243 | 3916 | * |
b980ac18 | 3917 | * Free all receive software resources |
9d5c8243 AK |
3918 | **/ |
3919 | static void igb_free_all_rx_resources(struct igb_adapter *adapter) | |
3920 | { | |
3921 | int i; | |
3922 | ||
3923 | for (i = 0; i < adapter->num_rx_queues; i++) | |
17a402a0 CW |
3924 | if (adapter->rx_ring[i]) |
3925 | igb_free_rx_resources(adapter->rx_ring[i]); | |
9d5c8243 AK |
3926 | } |
3927 | ||
3928 | /** | |
b980ac18 JK |
3929 | * igb_clean_rx_ring - Free Rx Buffers per Queue |
3930 | * @rx_ring: ring to free buffers from | |
9d5c8243 | 3931 | **/ |
3b644cf6 | 3932 | static void igb_clean_rx_ring(struct igb_ring *rx_ring) |
9d5c8243 | 3933 | { |
9d5c8243 | 3934 | unsigned long size; |
c023cd88 | 3935 | u16 i; |
9d5c8243 | 3936 | |
1a1c225b AD |
3937 | if (rx_ring->skb) |
3938 | dev_kfree_skb(rx_ring->skb); | |
3939 | rx_ring->skb = NULL; | |
3940 | ||
06034649 | 3941 | if (!rx_ring->rx_buffer_info) |
9d5c8243 | 3942 | return; |
439705e1 | 3943 | |
9d5c8243 AK |
3944 | /* Free all the Rx ring sk_buffs */ |
3945 | for (i = 0; i < rx_ring->count; i++) { | |
06034649 | 3946 | struct igb_rx_buffer *buffer_info = &rx_ring->rx_buffer_info[i]; |
9d5c8243 | 3947 | |
cbc8e55f AD |
3948 | if (!buffer_info->page) |
3949 | continue; | |
3950 | ||
5be59554 AD |
3951 | /* Invalidate cache lines that may have been written to by |
3952 | * device so that we avoid corrupting memory. | |
3953 | */ | |
3954 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
3955 | buffer_info->dma, | |
3956 | buffer_info->page_offset, | |
3957 | IGB_RX_BUFSZ, | |
3958 | DMA_FROM_DEVICE); | |
3959 | ||
3960 | /* free resources associated with mapping */ | |
3961 | dma_unmap_page_attrs(rx_ring->dev, | |
3962 | buffer_info->dma, | |
3963 | PAGE_SIZE, | |
3964 | DMA_FROM_DEVICE, | |
3965 | DMA_ATTR_SKIP_CPU_SYNC); | |
2976db80 AD |
3966 | __page_frag_cache_drain(buffer_info->page, |
3967 | buffer_info->pagecnt_bias); | |
cbc8e55f | 3968 | |
1a1c225b | 3969 | buffer_info->page = NULL; |
9d5c8243 AK |
3970 | } |
3971 | ||
06034649 AD |
3972 | size = sizeof(struct igb_rx_buffer) * rx_ring->count; |
3973 | memset(rx_ring->rx_buffer_info, 0, size); | |
9d5c8243 AK |
3974 | |
3975 | /* Zero out the descriptor ring */ | |
3976 | memset(rx_ring->desc, 0, rx_ring->size); | |
3977 | ||
cbc8e55f | 3978 | rx_ring->next_to_alloc = 0; |
9d5c8243 AK |
3979 | rx_ring->next_to_clean = 0; |
3980 | rx_ring->next_to_use = 0; | |
9d5c8243 AK |
3981 | } |
3982 | ||
3983 | /** | |
b980ac18 JK |
3984 | * igb_clean_all_rx_rings - Free Rx Buffers for all queues |
3985 | * @adapter: board private structure | |
9d5c8243 AK |
3986 | **/ |
3987 | static void igb_clean_all_rx_rings(struct igb_adapter *adapter) | |
3988 | { | |
3989 | int i; | |
3990 | ||
3991 | for (i = 0; i < adapter->num_rx_queues; i++) | |
17a402a0 CW |
3992 | if (adapter->rx_ring[i]) |
3993 | igb_clean_rx_ring(adapter->rx_ring[i]); | |
9d5c8243 AK |
3994 | } |
3995 | ||
3996 | /** | |
b980ac18 JK |
3997 | * igb_set_mac - Change the Ethernet Address of the NIC |
3998 | * @netdev: network interface device structure | |
3999 | * @p: pointer to an address structure | |
9d5c8243 | 4000 | * |
b980ac18 | 4001 | * Returns 0 on success, negative on failure |
9d5c8243 AK |
4002 | **/ |
4003 | static int igb_set_mac(struct net_device *netdev, void *p) | |
4004 | { | |
4005 | struct igb_adapter *adapter = netdev_priv(netdev); | |
28b0759c | 4006 | struct e1000_hw *hw = &adapter->hw; |
9d5c8243 AK |
4007 | struct sockaddr *addr = p; |
4008 | ||
4009 | if (!is_valid_ether_addr(addr->sa_data)) | |
4010 | return -EADDRNOTAVAIL; | |
4011 | ||
4012 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
28b0759c | 4013 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
9d5c8243 | 4014 | |
26ad9178 AD |
4015 | /* set the correct pool for the new PF MAC address in entry 0 */ |
4016 | igb_rar_set_qsel(adapter, hw->mac.addr, 0, | |
b980ac18 | 4017 | adapter->vfs_allocated_count); |
e1739522 | 4018 | |
9d5c8243 AK |
4019 | return 0; |
4020 | } | |
4021 | ||
4022 | /** | |
b980ac18 JK |
4023 | * igb_write_mc_addr_list - write multicast addresses to MTA |
4024 | * @netdev: network interface device structure | |
9d5c8243 | 4025 | * |
b980ac18 JK |
4026 | * Writes multicast address list to the MTA hash table. |
4027 | * Returns: -ENOMEM on failure | |
4028 | * 0 on no addresses written | |
4029 | * X on writing X addresses to MTA | |
9d5c8243 | 4030 | **/ |
68d480c4 | 4031 | static int igb_write_mc_addr_list(struct net_device *netdev) |
9d5c8243 AK |
4032 | { |
4033 | struct igb_adapter *adapter = netdev_priv(netdev); | |
4034 | struct e1000_hw *hw = &adapter->hw; | |
22bedad3 | 4035 | struct netdev_hw_addr *ha; |
68d480c4 | 4036 | u8 *mta_list; |
9d5c8243 AK |
4037 | int i; |
4038 | ||
4cd24eaf | 4039 | if (netdev_mc_empty(netdev)) { |
68d480c4 AD |
4040 | /* nothing to program, so clear mc list */ |
4041 | igb_update_mc_addr_list(hw, NULL, 0); | |
4042 | igb_restore_vf_multicasts(adapter); | |
4043 | return 0; | |
4044 | } | |
9d5c8243 | 4045 | |
4cd24eaf | 4046 | mta_list = kzalloc(netdev_mc_count(netdev) * 6, GFP_ATOMIC); |
68d480c4 AD |
4047 | if (!mta_list) |
4048 | return -ENOMEM; | |
ff41f8dc | 4049 | |
68d480c4 | 4050 | /* The shared function expects a packed array of only addresses. */ |
48e2f183 | 4051 | i = 0; |
22bedad3 JP |
4052 | netdev_for_each_mc_addr(ha, netdev) |
4053 | memcpy(mta_list + (i++ * ETH_ALEN), ha->addr, ETH_ALEN); | |
68d480c4 | 4054 | |
68d480c4 AD |
4055 | igb_update_mc_addr_list(hw, mta_list, i); |
4056 | kfree(mta_list); | |
4057 | ||
4cd24eaf | 4058 | return netdev_mc_count(netdev); |
68d480c4 AD |
4059 | } |
4060 | ||
4061 | /** | |
b980ac18 JK |
4062 | * igb_write_uc_addr_list - write unicast addresses to RAR table |
4063 | * @netdev: network interface device structure | |
68d480c4 | 4064 | * |
b980ac18 JK |
4065 | * Writes unicast address list to the RAR table. |
4066 | * Returns: -ENOMEM on failure/insufficient address space | |
4067 | * 0 on no addresses written | |
4068 | * X on writing X addresses to the RAR table | |
68d480c4 AD |
4069 | **/ |
4070 | static int igb_write_uc_addr_list(struct net_device *netdev) | |
4071 | { | |
4072 | struct igb_adapter *adapter = netdev_priv(netdev); | |
4073 | struct e1000_hw *hw = &adapter->hw; | |
4074 | unsigned int vfn = adapter->vfs_allocated_count; | |
4075 | unsigned int rar_entries = hw->mac.rar_entry_count - (vfn + 1); | |
4076 | int count = 0; | |
4077 | ||
4078 | /* return ENOMEM indicating insufficient memory for addresses */ | |
32e7bfc4 | 4079 | if (netdev_uc_count(netdev) > rar_entries) |
68d480c4 | 4080 | return -ENOMEM; |
9d5c8243 | 4081 | |
32e7bfc4 | 4082 | if (!netdev_uc_empty(netdev) && rar_entries) { |
ff41f8dc | 4083 | struct netdev_hw_addr *ha; |
32e7bfc4 JP |
4084 | |
4085 | netdev_for_each_uc_addr(ha, netdev) { | |
ff41f8dc AD |
4086 | if (!rar_entries) |
4087 | break; | |
26ad9178 | 4088 | igb_rar_set_qsel(adapter, ha->addr, |
b980ac18 JK |
4089 | rar_entries--, |
4090 | vfn); | |
68d480c4 | 4091 | count++; |
ff41f8dc AD |
4092 | } |
4093 | } | |
4094 | /* write the addresses in reverse order to avoid write combining */ | |
4095 | for (; rar_entries > 0 ; rar_entries--) { | |
4096 | wr32(E1000_RAH(rar_entries), 0); | |
4097 | wr32(E1000_RAL(rar_entries), 0); | |
4098 | } | |
4099 | wrfl(); | |
4100 | ||
68d480c4 AD |
4101 | return count; |
4102 | } | |
4103 | ||
16903caa AD |
4104 | static int igb_vlan_promisc_enable(struct igb_adapter *adapter) |
4105 | { | |
4106 | struct e1000_hw *hw = &adapter->hw; | |
4107 | u32 i, pf_id; | |
4108 | ||
4109 | switch (hw->mac.type) { | |
4110 | case e1000_i210: | |
4111 | case e1000_i211: | |
4112 | case e1000_i350: | |
4113 | /* VLAN filtering needed for VLAN prio filter */ | |
4114 | if (adapter->netdev->features & NETIF_F_NTUPLE) | |
4115 | break; | |
4116 | /* fall through */ | |
4117 | case e1000_82576: | |
4118 | case e1000_82580: | |
4119 | case e1000_i354: | |
4120 | /* VLAN filtering needed for pool filtering */ | |
4121 | if (adapter->vfs_allocated_count) | |
4122 | break; | |
4123 | /* fall through */ | |
4124 | default: | |
4125 | return 1; | |
4126 | } | |
4127 | ||
4128 | /* We are already in VLAN promisc, nothing to do */ | |
4129 | if (adapter->flags & IGB_FLAG_VLAN_PROMISC) | |
4130 | return 0; | |
4131 | ||
4132 | if (!adapter->vfs_allocated_count) | |
4133 | goto set_vfta; | |
4134 | ||
4135 | /* Add PF to all active pools */ | |
4136 | pf_id = adapter->vfs_allocated_count + E1000_VLVF_POOLSEL_SHIFT; | |
4137 | ||
4138 | for (i = E1000_VLVF_ARRAY_SIZE; --i;) { | |
4139 | u32 vlvf = rd32(E1000_VLVF(i)); | |
4140 | ||
a51d8c21 | 4141 | vlvf |= BIT(pf_id); |
16903caa AD |
4142 | wr32(E1000_VLVF(i), vlvf); |
4143 | } | |
4144 | ||
4145 | set_vfta: | |
4146 | /* Set all bits in the VLAN filter table array */ | |
4147 | for (i = E1000_VLAN_FILTER_TBL_SIZE; i--;) | |
4148 | hw->mac.ops.write_vfta(hw, i, ~0U); | |
4149 | ||
4150 | /* Set flag so we don't redo unnecessary work */ | |
4151 | adapter->flags |= IGB_FLAG_VLAN_PROMISC; | |
4152 | ||
4153 | return 0; | |
4154 | } | |
4155 | ||
4156 | #define VFTA_BLOCK_SIZE 8 | |
4157 | static void igb_scrub_vfta(struct igb_adapter *adapter, u32 vfta_offset) | |
4158 | { | |
4159 | struct e1000_hw *hw = &adapter->hw; | |
4160 | u32 vfta[VFTA_BLOCK_SIZE] = { 0 }; | |
4161 | u32 vid_start = vfta_offset * 32; | |
4162 | u32 vid_end = vid_start + (VFTA_BLOCK_SIZE * 32); | |
4163 | u32 i, vid, word, bits, pf_id; | |
4164 | ||
4165 | /* guarantee that we don't scrub out management VLAN */ | |
4166 | vid = adapter->mng_vlan_id; | |
4167 | if (vid >= vid_start && vid < vid_end) | |
a51d8c21 | 4168 | vfta[(vid - vid_start) / 32] |= BIT(vid % 32); |
16903caa AD |
4169 | |
4170 | if (!adapter->vfs_allocated_count) | |
4171 | goto set_vfta; | |
4172 | ||
4173 | pf_id = adapter->vfs_allocated_count + E1000_VLVF_POOLSEL_SHIFT; | |
4174 | ||
4175 | for (i = E1000_VLVF_ARRAY_SIZE; --i;) { | |
4176 | u32 vlvf = rd32(E1000_VLVF(i)); | |
4177 | ||
4178 | /* pull VLAN ID from VLVF */ | |
4179 | vid = vlvf & VLAN_VID_MASK; | |
4180 | ||
4181 | /* only concern ourselves with a certain range */ | |
4182 | if (vid < vid_start || vid >= vid_end) | |
4183 | continue; | |
4184 | ||
4185 | if (vlvf & E1000_VLVF_VLANID_ENABLE) { | |
4186 | /* record VLAN ID in VFTA */ | |
a51d8c21 | 4187 | vfta[(vid - vid_start) / 32] |= BIT(vid % 32); |
16903caa AD |
4188 | |
4189 | /* if PF is part of this then continue */ | |
4190 | if (test_bit(vid, adapter->active_vlans)) | |
4191 | continue; | |
4192 | } | |
4193 | ||
4194 | /* remove PF from the pool */ | |
a51d8c21 | 4195 | bits = ~BIT(pf_id); |
16903caa AD |
4196 | bits &= rd32(E1000_VLVF(i)); |
4197 | wr32(E1000_VLVF(i), bits); | |
4198 | } | |
4199 | ||
4200 | set_vfta: | |
4201 | /* extract values from active_vlans and write back to VFTA */ | |
4202 | for (i = VFTA_BLOCK_SIZE; i--;) { | |
4203 | vid = (vfta_offset + i) * 32; | |
4204 | word = vid / BITS_PER_LONG; | |
4205 | bits = vid % BITS_PER_LONG; | |
4206 | ||
4207 | vfta[i] |= adapter->active_vlans[word] >> bits; | |
4208 | ||
4209 | hw->mac.ops.write_vfta(hw, vfta_offset + i, vfta[i]); | |
4210 | } | |
4211 | } | |
4212 | ||
4213 | static void igb_vlan_promisc_disable(struct igb_adapter *adapter) | |
4214 | { | |
4215 | u32 i; | |
4216 | ||
4217 | /* We are not in VLAN promisc, nothing to do */ | |
4218 | if (!(adapter->flags & IGB_FLAG_VLAN_PROMISC)) | |
4219 | return; | |
4220 | ||
4221 | /* Set flag so we don't redo unnecessary work */ | |
4222 | adapter->flags &= ~IGB_FLAG_VLAN_PROMISC; | |
4223 | ||
4224 | for (i = 0; i < E1000_VLAN_FILTER_TBL_SIZE; i += VFTA_BLOCK_SIZE) | |
4225 | igb_scrub_vfta(adapter, i); | |
4226 | } | |
4227 | ||
68d480c4 | 4228 | /** |
b980ac18 JK |
4229 | * igb_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set |
4230 | * @netdev: network interface device structure | |
68d480c4 | 4231 | * |
b980ac18 JK |
4232 | * The set_rx_mode entry point is called whenever the unicast or multicast |
4233 | * address lists or the network interface flags are updated. This routine is | |
4234 | * responsible for configuring the hardware for proper unicast, multicast, | |
4235 | * promiscuous mode, and all-multi behavior. | |
68d480c4 AD |
4236 | **/ |
4237 | static void igb_set_rx_mode(struct net_device *netdev) | |
4238 | { | |
4239 | struct igb_adapter *adapter = netdev_priv(netdev); | |
4240 | struct e1000_hw *hw = &adapter->hw; | |
4241 | unsigned int vfn = adapter->vfs_allocated_count; | |
16903caa | 4242 | u32 rctl = 0, vmolr = 0; |
68d480c4 AD |
4243 | int count; |
4244 | ||
4245 | /* Check for Promiscuous and All Multicast modes */ | |
68d480c4 | 4246 | if (netdev->flags & IFF_PROMISC) { |
16903caa | 4247 | rctl |= E1000_RCTL_UPE | E1000_RCTL_MPE; |
bf456abb AD |
4248 | vmolr |= E1000_VMOLR_MPME; |
4249 | ||
4250 | /* enable use of UTA filter to force packets to default pool */ | |
4251 | if (hw->mac.type == e1000_82576) | |
4252 | vmolr |= E1000_VMOLR_ROPE; | |
68d480c4 AD |
4253 | } else { |
4254 | if (netdev->flags & IFF_ALLMULTI) { | |
4255 | rctl |= E1000_RCTL_MPE; | |
4256 | vmolr |= E1000_VMOLR_MPME; | |
4257 | } else { | |
b980ac18 | 4258 | /* Write addresses to the MTA, if the attempt fails |
25985edc | 4259 | * then we should just turn on promiscuous mode so |
68d480c4 AD |
4260 | * that we can at least receive multicast traffic |
4261 | */ | |
4262 | count = igb_write_mc_addr_list(netdev); | |
4263 | if (count < 0) { | |
4264 | rctl |= E1000_RCTL_MPE; | |
4265 | vmolr |= E1000_VMOLR_MPME; | |
4266 | } else if (count) { | |
4267 | vmolr |= E1000_VMOLR_ROMPE; | |
4268 | } | |
4269 | } | |
28fc06f5 | 4270 | } |
268f9d33 AD |
4271 | |
4272 | /* Write addresses to available RAR registers, if there is not | |
4273 | * sufficient space to store all the addresses then enable | |
4274 | * unicast promiscuous mode | |
4275 | */ | |
4276 | count = igb_write_uc_addr_list(netdev); | |
4277 | if (count < 0) { | |
4278 | rctl |= E1000_RCTL_UPE; | |
4279 | vmolr |= E1000_VMOLR_ROPE; | |
28fc06f5 | 4280 | } |
16903caa AD |
4281 | |
4282 | /* enable VLAN filtering by default */ | |
4283 | rctl |= E1000_RCTL_VFE; | |
4284 | ||
4285 | /* disable VLAN filtering for modes that require it */ | |
4286 | if ((netdev->flags & IFF_PROMISC) || | |
4287 | (netdev->features & NETIF_F_RXALL)) { | |
4288 | /* if we fail to set all rules then just clear VFE */ | |
4289 | if (igb_vlan_promisc_enable(adapter)) | |
4290 | rctl &= ~E1000_RCTL_VFE; | |
4291 | } else { | |
4292 | igb_vlan_promisc_disable(adapter); | |
4293 | } | |
4294 | ||
4295 | /* update state of unicast, multicast, and VLAN filtering modes */ | |
4296 | rctl |= rd32(E1000_RCTL) & ~(E1000_RCTL_UPE | E1000_RCTL_MPE | | |
4297 | E1000_RCTL_VFE); | |
68d480c4 | 4298 | wr32(E1000_RCTL, rctl); |
28fc06f5 | 4299 | |
b980ac18 | 4300 | /* In order to support SR-IOV and eventually VMDq it is necessary to set |
68d480c4 AD |
4301 | * the VMOLR to enable the appropriate modes. Without this workaround |
4302 | * we will have issues with VLAN tag stripping not being done for frames | |
4303 | * that are only arriving because we are the default pool | |
4304 | */ | |
f96a8a0b | 4305 | if ((hw->mac.type < e1000_82576) || (hw->mac.type > e1000_i350)) |
28fc06f5 | 4306 | return; |
9d5c8243 | 4307 | |
bf456abb AD |
4308 | /* set UTA to appropriate mode */ |
4309 | igb_set_uta(adapter, !!(vmolr & E1000_VMOLR_ROPE)); | |
4310 | ||
68d480c4 | 4311 | vmolr |= rd32(E1000_VMOLR(vfn)) & |
b980ac18 | 4312 | ~(E1000_VMOLR_ROPE | E1000_VMOLR_MPME | E1000_VMOLR_ROMPE); |
45693bcb AD |
4313 | |
4314 | /* enable Rx jumbo frames, no need for restriction */ | |
4315 | vmolr &= ~E1000_VMOLR_RLPML_MASK; | |
4316 | vmolr |= MAX_JUMBO_FRAME_SIZE | E1000_VMOLR_LPE; | |
4317 | ||
68d480c4 | 4318 | wr32(E1000_VMOLR(vfn), vmolr); |
45693bcb AD |
4319 | wr32(E1000_RLPML, MAX_JUMBO_FRAME_SIZE); |
4320 | ||
28fc06f5 | 4321 | igb_restore_vf_multicasts(adapter); |
9d5c8243 AK |
4322 | } |
4323 | ||
13800469 GR |
4324 | static void igb_check_wvbr(struct igb_adapter *adapter) |
4325 | { | |
4326 | struct e1000_hw *hw = &adapter->hw; | |
4327 | u32 wvbr = 0; | |
4328 | ||
4329 | switch (hw->mac.type) { | |
4330 | case e1000_82576: | |
4331 | case e1000_i350: | |
81ad807b CW |
4332 | wvbr = rd32(E1000_WVBR); |
4333 | if (!wvbr) | |
13800469 GR |
4334 | return; |
4335 | break; | |
4336 | default: | |
4337 | break; | |
4338 | } | |
4339 | ||
4340 | adapter->wvbr |= wvbr; | |
4341 | } | |
4342 | ||
4343 | #define IGB_STAGGERED_QUEUE_OFFSET 8 | |
4344 | ||
4345 | static void igb_spoof_check(struct igb_adapter *adapter) | |
4346 | { | |
4347 | int j; | |
4348 | ||
4349 | if (!adapter->wvbr) | |
4350 | return; | |
4351 | ||
9005df38 | 4352 | for (j = 0; j < adapter->vfs_allocated_count; j++) { |
a51d8c21 JK |
4353 | if (adapter->wvbr & BIT(j) || |
4354 | adapter->wvbr & BIT(j + IGB_STAGGERED_QUEUE_OFFSET)) { | |
13800469 GR |
4355 | dev_warn(&adapter->pdev->dev, |
4356 | "Spoof event(s) detected on VF %d\n", j); | |
4357 | adapter->wvbr &= | |
a51d8c21 JK |
4358 | ~(BIT(j) | |
4359 | BIT(j + IGB_STAGGERED_QUEUE_OFFSET)); | |
13800469 GR |
4360 | } |
4361 | } | |
4362 | } | |
4363 | ||
9d5c8243 | 4364 | /* Need to wait a few seconds after link up to get diagnostic information from |
b980ac18 JK |
4365 | * the phy |
4366 | */ | |
9d5c8243 AK |
4367 | static void igb_update_phy_info(unsigned long data) |
4368 | { | |
4369 | struct igb_adapter *adapter = (struct igb_adapter *) data; | |
f5f4cf08 | 4370 | igb_get_phy_info(&adapter->hw); |
9d5c8243 AK |
4371 | } |
4372 | ||
4d6b725e | 4373 | /** |
b980ac18 JK |
4374 | * igb_has_link - check shared code for link and determine up/down |
4375 | * @adapter: pointer to driver private info | |
4d6b725e | 4376 | **/ |
3145535a | 4377 | bool igb_has_link(struct igb_adapter *adapter) |
4d6b725e AD |
4378 | { |
4379 | struct e1000_hw *hw = &adapter->hw; | |
4380 | bool link_active = false; | |
4d6b725e AD |
4381 | |
4382 | /* get_link_status is set on LSC (link status) interrupt or | |
4383 | * rx sequence error interrupt. get_link_status will stay | |
4384 | * false until the e1000_check_for_link establishes link | |
4385 | * for copper adapters ONLY | |
4386 | */ | |
4387 | switch (hw->phy.media_type) { | |
4388 | case e1000_media_type_copper: | |
e5c3370f AA |
4389 | if (!hw->mac.get_link_status) |
4390 | return true; | |
4d6b725e | 4391 | case e1000_media_type_internal_serdes: |
e5c3370f AA |
4392 | hw->mac.ops.check_for_link(hw); |
4393 | link_active = !hw->mac.get_link_status; | |
4d6b725e AD |
4394 | break; |
4395 | default: | |
4396 | case e1000_media_type_unknown: | |
4397 | break; | |
4398 | } | |
4399 | ||
aa9b8cc4 AA |
4400 | if (((hw->mac.type == e1000_i210) || |
4401 | (hw->mac.type == e1000_i211)) && | |
4402 | (hw->phy.id == I210_I_PHY_ID)) { | |
4403 | if (!netif_carrier_ok(adapter->netdev)) { | |
4404 | adapter->flags &= ~IGB_FLAG_NEED_LINK_UPDATE; | |
4405 | } else if (!(adapter->flags & IGB_FLAG_NEED_LINK_UPDATE)) { | |
4406 | adapter->flags |= IGB_FLAG_NEED_LINK_UPDATE; | |
4407 | adapter->link_check_timeout = jiffies; | |
4408 | } | |
4409 | } | |
4410 | ||
4d6b725e AD |
4411 | return link_active; |
4412 | } | |
4413 | ||
563988dc SA |
4414 | static bool igb_thermal_sensor_event(struct e1000_hw *hw, u32 event) |
4415 | { | |
4416 | bool ret = false; | |
4417 | u32 ctrl_ext, thstat; | |
4418 | ||
f96a8a0b | 4419 | /* check for thermal sensor event on i350 copper only */ |
563988dc SA |
4420 | if (hw->mac.type == e1000_i350) { |
4421 | thstat = rd32(E1000_THSTAT); | |
4422 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
4423 | ||
4424 | if ((hw->phy.media_type == e1000_media_type_copper) && | |
5c17a203 | 4425 | !(ctrl_ext & E1000_CTRL_EXT_LINK_MODE_SGMII)) |
563988dc | 4426 | ret = !!(thstat & event); |
563988dc SA |
4427 | } |
4428 | ||
4429 | return ret; | |
4430 | } | |
4431 | ||
1516f0a6 CW |
4432 | /** |
4433 | * igb_check_lvmmc - check for malformed packets received | |
4434 | * and indicated in LVMMC register | |
4435 | * @adapter: pointer to adapter | |
4436 | **/ | |
4437 | static void igb_check_lvmmc(struct igb_adapter *adapter) | |
4438 | { | |
4439 | struct e1000_hw *hw = &adapter->hw; | |
4440 | u32 lvmmc; | |
4441 | ||
4442 | lvmmc = rd32(E1000_LVMMC); | |
4443 | if (lvmmc) { | |
4444 | if (unlikely(net_ratelimit())) { | |
4445 | netdev_warn(adapter->netdev, | |
4446 | "malformed Tx packet detected and dropped, LVMMC:0x%08x\n", | |
4447 | lvmmc); | |
4448 | } | |
4449 | } | |
4450 | } | |
4451 | ||
9d5c8243 | 4452 | /** |
b980ac18 JK |
4453 | * igb_watchdog - Timer Call-back |
4454 | * @data: pointer to adapter cast into an unsigned long | |
9d5c8243 AK |
4455 | **/ |
4456 | static void igb_watchdog(unsigned long data) | |
4457 | { | |
4458 | struct igb_adapter *adapter = (struct igb_adapter *)data; | |
4459 | /* Do the rest outside of interrupt context */ | |
4460 | schedule_work(&adapter->watchdog_task); | |
4461 | } | |
4462 | ||
4463 | static void igb_watchdog_task(struct work_struct *work) | |
4464 | { | |
4465 | struct igb_adapter *adapter = container_of(work, | |
b980ac18 JK |
4466 | struct igb_adapter, |
4467 | watchdog_task); | |
9d5c8243 | 4468 | struct e1000_hw *hw = &adapter->hw; |
c0ba4778 | 4469 | struct e1000_phy_info *phy = &hw->phy; |
9d5c8243 | 4470 | struct net_device *netdev = adapter->netdev; |
563988dc | 4471 | u32 link; |
7a6ea550 | 4472 | int i; |
56cec249 | 4473 | u32 connsw; |
b72f3f72 | 4474 | u16 phy_data, retry_count = 20; |
9d5c8243 | 4475 | |
4d6b725e | 4476 | link = igb_has_link(adapter); |
aa9b8cc4 AA |
4477 | |
4478 | if (adapter->flags & IGB_FLAG_NEED_LINK_UPDATE) { | |
4479 | if (time_after(jiffies, (adapter->link_check_timeout + HZ))) | |
4480 | adapter->flags &= ~IGB_FLAG_NEED_LINK_UPDATE; | |
4481 | else | |
4482 | link = false; | |
4483 | } | |
4484 | ||
56cec249 CW |
4485 | /* Force link down if we have fiber to swap to */ |
4486 | if (adapter->flags & IGB_FLAG_MAS_ENABLE) { | |
4487 | if (hw->phy.media_type == e1000_media_type_copper) { | |
4488 | connsw = rd32(E1000_CONNSW); | |
4489 | if (!(connsw & E1000_CONNSW_AUTOSENSE_EN)) | |
4490 | link = 0; | |
4491 | } | |
4492 | } | |
9d5c8243 | 4493 | if (link) { |
2bdfc4e2 CW |
4494 | /* Perform a reset if the media type changed. */ |
4495 | if (hw->dev_spec._82575.media_changed) { | |
4496 | hw->dev_spec._82575.media_changed = false; | |
4497 | adapter->flags |= IGB_FLAG_MEDIA_RESET; | |
4498 | igb_reset(adapter); | |
4499 | } | |
749ab2cd YZ |
4500 | /* Cancel scheduled suspend requests. */ |
4501 | pm_runtime_resume(netdev->dev.parent); | |
4502 | ||
9d5c8243 AK |
4503 | if (!netif_carrier_ok(netdev)) { |
4504 | u32 ctrl; | |
9005df38 | 4505 | |
330a6d6a | 4506 | hw->mac.ops.get_speed_and_duplex(hw, |
b980ac18 JK |
4507 | &adapter->link_speed, |
4508 | &adapter->link_duplex); | |
9d5c8243 AK |
4509 | |
4510 | ctrl = rd32(E1000_CTRL); | |
527d47c1 | 4511 | /* Links status message must follow this format */ |
c75c4edf CW |
4512 | netdev_info(netdev, |
4513 | "igb: %s NIC Link is Up %d Mbps %s Duplex, Flow Control: %s\n", | |
559e9c49 AD |
4514 | netdev->name, |
4515 | adapter->link_speed, | |
4516 | adapter->link_duplex == FULL_DUPLEX ? | |
876d2d6f JK |
4517 | "Full" : "Half", |
4518 | (ctrl & E1000_CTRL_TFCE) && | |
4519 | (ctrl & E1000_CTRL_RFCE) ? "RX/TX" : | |
4520 | (ctrl & E1000_CTRL_RFCE) ? "RX" : | |
4521 | (ctrl & E1000_CTRL_TFCE) ? "TX" : "None"); | |
9d5c8243 | 4522 | |
f4c01e96 CW |
4523 | /* disable EEE if enabled */ |
4524 | if ((adapter->flags & IGB_FLAG_EEE) && | |
4525 | (adapter->link_duplex == HALF_DUPLEX)) { | |
4526 | dev_info(&adapter->pdev->dev, | |
4527 | "EEE Disabled: unsupported at half duplex. Re-enable using ethtool when at full duplex.\n"); | |
4528 | adapter->hw.dev_spec._82575.eee_disable = true; | |
4529 | adapter->flags &= ~IGB_FLAG_EEE; | |
4530 | } | |
4531 | ||
c0ba4778 KS |
4532 | /* check if SmartSpeed worked */ |
4533 | igb_check_downshift(hw); | |
4534 | if (phy->speed_downgraded) | |
4535 | netdev_warn(netdev, "Link Speed was downgraded by SmartSpeed\n"); | |
4536 | ||
563988dc | 4537 | /* check for thermal sensor event */ |
876d2d6f | 4538 | if (igb_thermal_sensor_event(hw, |
d34a15ab | 4539 | E1000_THSTAT_LINK_THROTTLE)) |
c75c4edf | 4540 | netdev_info(netdev, "The network adapter link speed was downshifted because it overheated\n"); |
563988dc | 4541 | |
d07f3e37 | 4542 | /* adjust timeout factor according to speed/duplex */ |
9d5c8243 AK |
4543 | adapter->tx_timeout_factor = 1; |
4544 | switch (adapter->link_speed) { | |
4545 | case SPEED_10: | |
9d5c8243 AK |
4546 | adapter->tx_timeout_factor = 14; |
4547 | break; | |
4548 | case SPEED_100: | |
9d5c8243 AK |
4549 | /* maybe add some timeout factor ? */ |
4550 | break; | |
4551 | } | |
4552 | ||
b72f3f72 TU |
4553 | if (adapter->link_speed != SPEED_1000) |
4554 | goto no_wait; | |
4555 | ||
4556 | /* wait for Remote receiver status OK */ | |
4557 | retry_read_status: | |
4558 | if (!igb_read_phy_reg(hw, PHY_1000T_STATUS, | |
4559 | &phy_data)) { | |
4560 | if (!(phy_data & SR_1000T_REMOTE_RX_STATUS) && | |
4561 | retry_count) { | |
4562 | msleep(100); | |
4563 | retry_count--; | |
4564 | goto retry_read_status; | |
4565 | } else if (!retry_count) { | |
4566 | dev_err(&adapter->pdev->dev, "exceed max 2 second\n"); | |
4567 | } | |
4568 | } else { | |
4569 | dev_err(&adapter->pdev->dev, "read 1000Base-T Status Reg\n"); | |
4570 | } | |
4571 | no_wait: | |
9d5c8243 | 4572 | netif_carrier_on(netdev); |
9d5c8243 | 4573 | |
4ae196df | 4574 | igb_ping_all_vfs(adapter); |
17dc566c | 4575 | igb_check_vf_rate_limit(adapter); |
4ae196df | 4576 | |
4b1a9877 | 4577 | /* link state has changed, schedule phy info update */ |
9d5c8243 AK |
4578 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
4579 | mod_timer(&adapter->phy_info_timer, | |
4580 | round_jiffies(jiffies + 2 * HZ)); | |
4581 | } | |
4582 | } else { | |
4583 | if (netif_carrier_ok(netdev)) { | |
4584 | adapter->link_speed = 0; | |
4585 | adapter->link_duplex = 0; | |
563988dc SA |
4586 | |
4587 | /* check for thermal sensor event */ | |
876d2d6f JK |
4588 | if (igb_thermal_sensor_event(hw, |
4589 | E1000_THSTAT_PWR_DOWN)) { | |
c75c4edf | 4590 | netdev_err(netdev, "The network adapter was stopped because it overheated\n"); |
7ef5ed1c | 4591 | } |
563988dc | 4592 | |
527d47c1 | 4593 | /* Links status message must follow this format */ |
c75c4edf | 4594 | netdev_info(netdev, "igb: %s NIC Link is Down\n", |
527d47c1 | 4595 | netdev->name); |
9d5c8243 | 4596 | netif_carrier_off(netdev); |
4b1a9877 | 4597 | |
4ae196df AD |
4598 | igb_ping_all_vfs(adapter); |
4599 | ||
4b1a9877 | 4600 | /* link state has changed, schedule phy info update */ |
9d5c8243 AK |
4601 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
4602 | mod_timer(&adapter->phy_info_timer, | |
4603 | round_jiffies(jiffies + 2 * HZ)); | |
749ab2cd | 4604 | |
56cec249 CW |
4605 | /* link is down, time to check for alternate media */ |
4606 | if (adapter->flags & IGB_FLAG_MAS_ENABLE) { | |
4607 | igb_check_swap_media(adapter); | |
4608 | if (adapter->flags & IGB_FLAG_MEDIA_RESET) { | |
4609 | schedule_work(&adapter->reset_task); | |
4610 | /* return immediately */ | |
4611 | return; | |
4612 | } | |
4613 | } | |
749ab2cd YZ |
4614 | pm_schedule_suspend(netdev->dev.parent, |
4615 | MSEC_PER_SEC * 5); | |
56cec249 CW |
4616 | |
4617 | /* also check for alternate media here */ | |
4618 | } else if (!netif_carrier_ok(netdev) && | |
4619 | (adapter->flags & IGB_FLAG_MAS_ENABLE)) { | |
4620 | igb_check_swap_media(adapter); | |
4621 | if (adapter->flags & IGB_FLAG_MEDIA_RESET) { | |
4622 | schedule_work(&adapter->reset_task); | |
4623 | /* return immediately */ | |
4624 | return; | |
4625 | } | |
9d5c8243 AK |
4626 | } |
4627 | } | |
4628 | ||
12dcd86b ED |
4629 | spin_lock(&adapter->stats64_lock); |
4630 | igb_update_stats(adapter, &adapter->stats64); | |
4631 | spin_unlock(&adapter->stats64_lock); | |
9d5c8243 | 4632 | |
dbabb065 | 4633 | for (i = 0; i < adapter->num_tx_queues; i++) { |
3025a446 | 4634 | struct igb_ring *tx_ring = adapter->tx_ring[i]; |
dbabb065 | 4635 | if (!netif_carrier_ok(netdev)) { |
9d5c8243 AK |
4636 | /* We've lost link, so the controller stops DMA, |
4637 | * but we've got queued Tx work that's never going | |
4638 | * to get done, so reset controller to flush Tx. | |
b980ac18 JK |
4639 | * (Do the reset outside of interrupt context). |
4640 | */ | |
dbabb065 AD |
4641 | if (igb_desc_unused(tx_ring) + 1 < tx_ring->count) { |
4642 | adapter->tx_timeout_count++; | |
4643 | schedule_work(&adapter->reset_task); | |
4644 | /* return immediately since reset is imminent */ | |
4645 | return; | |
4646 | } | |
9d5c8243 | 4647 | } |
9d5c8243 | 4648 | |
dbabb065 | 4649 | /* Force detection of hung controller every watchdog period */ |
6d095fa8 | 4650 | set_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags); |
dbabb065 | 4651 | } |
f7ba205e | 4652 | |
b980ac18 | 4653 | /* Cause software interrupt to ensure Rx ring is cleaned */ |
cd14ef54 | 4654 | if (adapter->flags & IGB_FLAG_HAS_MSIX) { |
047e0030 | 4655 | u32 eics = 0; |
9005df38 | 4656 | |
0d1ae7f4 AD |
4657 | for (i = 0; i < adapter->num_q_vectors; i++) |
4658 | eics |= adapter->q_vector[i]->eims_value; | |
7a6ea550 AD |
4659 | wr32(E1000_EICS, eics); |
4660 | } else { | |
4661 | wr32(E1000_ICS, E1000_ICS_RXDMT0); | |
4662 | } | |
9d5c8243 | 4663 | |
13800469 | 4664 | igb_spoof_check(adapter); |
fc580751 | 4665 | igb_ptp_rx_hang(adapter); |
13800469 | 4666 | |
1516f0a6 CW |
4667 | /* Check LVMMC register on i350/i354 only */ |
4668 | if ((adapter->hw.mac.type == e1000_i350) || | |
4669 | (adapter->hw.mac.type == e1000_i354)) | |
4670 | igb_check_lvmmc(adapter); | |
4671 | ||
9d5c8243 | 4672 | /* Reset the timer */ |
aa9b8cc4 AA |
4673 | if (!test_bit(__IGB_DOWN, &adapter->state)) { |
4674 | if (adapter->flags & IGB_FLAG_NEED_LINK_UPDATE) | |
4675 | mod_timer(&adapter->watchdog_timer, | |
4676 | round_jiffies(jiffies + HZ)); | |
4677 | else | |
4678 | mod_timer(&adapter->watchdog_timer, | |
4679 | round_jiffies(jiffies + 2 * HZ)); | |
4680 | } | |
9d5c8243 AK |
4681 | } |
4682 | ||
4683 | enum latency_range { | |
4684 | lowest_latency = 0, | |
4685 | low_latency = 1, | |
4686 | bulk_latency = 2, | |
4687 | latency_invalid = 255 | |
4688 | }; | |
4689 | ||
6eb5a7f1 | 4690 | /** |
b980ac18 JK |
4691 | * igb_update_ring_itr - update the dynamic ITR value based on packet size |
4692 | * @q_vector: pointer to q_vector | |
6eb5a7f1 | 4693 | * |
b980ac18 JK |
4694 | * Stores a new ITR value based on strictly on packet size. This |
4695 | * algorithm is less sophisticated than that used in igb_update_itr, | |
4696 | * due to the difficulty of synchronizing statistics across multiple | |
4697 | * receive rings. The divisors and thresholds used by this function | |
4698 | * were determined based on theoretical maximum wire speed and testing | |
4699 | * data, in order to minimize response time while increasing bulk | |
4700 | * throughput. | |
406d4965 | 4701 | * This functionality is controlled by ethtool's coalescing settings. |
b980ac18 JK |
4702 | * NOTE: This function is called only when operating in a multiqueue |
4703 | * receive environment. | |
6eb5a7f1 | 4704 | **/ |
047e0030 | 4705 | static void igb_update_ring_itr(struct igb_q_vector *q_vector) |
9d5c8243 | 4706 | { |
047e0030 | 4707 | int new_val = q_vector->itr_val; |
6eb5a7f1 | 4708 | int avg_wire_size = 0; |
047e0030 | 4709 | struct igb_adapter *adapter = q_vector->adapter; |
12dcd86b | 4710 | unsigned int packets; |
9d5c8243 | 4711 | |
6eb5a7f1 AD |
4712 | /* For non-gigabit speeds, just fix the interrupt rate at 4000 |
4713 | * ints/sec - ITR timer value of 120 ticks. | |
4714 | */ | |
4715 | if (adapter->link_speed != SPEED_1000) { | |
0ba82994 | 4716 | new_val = IGB_4K_ITR; |
6eb5a7f1 | 4717 | goto set_itr_val; |
9d5c8243 | 4718 | } |
047e0030 | 4719 | |
0ba82994 AD |
4720 | packets = q_vector->rx.total_packets; |
4721 | if (packets) | |
4722 | avg_wire_size = q_vector->rx.total_bytes / packets; | |
047e0030 | 4723 | |
0ba82994 AD |
4724 | packets = q_vector->tx.total_packets; |
4725 | if (packets) | |
4726 | avg_wire_size = max_t(u32, avg_wire_size, | |
4727 | q_vector->tx.total_bytes / packets); | |
047e0030 AD |
4728 | |
4729 | /* if avg_wire_size isn't set no work was done */ | |
4730 | if (!avg_wire_size) | |
4731 | goto clear_counts; | |
9d5c8243 | 4732 | |
6eb5a7f1 AD |
4733 | /* Add 24 bytes to size to account for CRC, preamble, and gap */ |
4734 | avg_wire_size += 24; | |
4735 | ||
4736 | /* Don't starve jumbo frames */ | |
4737 | avg_wire_size = min(avg_wire_size, 3000); | |
9d5c8243 | 4738 | |
6eb5a7f1 AD |
4739 | /* Give a little boost to mid-size frames */ |
4740 | if ((avg_wire_size > 300) && (avg_wire_size < 1200)) | |
4741 | new_val = avg_wire_size / 3; | |
4742 | else | |
4743 | new_val = avg_wire_size / 2; | |
9d5c8243 | 4744 | |
0ba82994 AD |
4745 | /* conservative mode (itr 3) eliminates the lowest_latency setting */ |
4746 | if (new_val < IGB_20K_ITR && | |
4747 | ((q_vector->rx.ring && adapter->rx_itr_setting == 3) || | |
4748 | (!q_vector->rx.ring && adapter->tx_itr_setting == 3))) | |
4749 | new_val = IGB_20K_ITR; | |
abe1c363 | 4750 | |
6eb5a7f1 | 4751 | set_itr_val: |
047e0030 AD |
4752 | if (new_val != q_vector->itr_val) { |
4753 | q_vector->itr_val = new_val; | |
4754 | q_vector->set_itr = 1; | |
9d5c8243 | 4755 | } |
6eb5a7f1 | 4756 | clear_counts: |
0ba82994 AD |
4757 | q_vector->rx.total_bytes = 0; |
4758 | q_vector->rx.total_packets = 0; | |
4759 | q_vector->tx.total_bytes = 0; | |
4760 | q_vector->tx.total_packets = 0; | |
9d5c8243 AK |
4761 | } |
4762 | ||
4763 | /** | |
b980ac18 JK |
4764 | * igb_update_itr - update the dynamic ITR value based on statistics |
4765 | * @q_vector: pointer to q_vector | |
4766 | * @ring_container: ring info to update the itr for | |
4767 | * | |
4768 | * Stores a new ITR value based on packets and byte | |
4769 | * counts during the last interrupt. The advantage of per interrupt | |
4770 | * computation is faster updates and more accurate ITR for the current | |
4771 | * traffic pattern. Constants in this function were computed | |
4772 | * based on theoretical maximum wire speed and thresholds were set based | |
4773 | * on testing data as well as attempting to minimize response time | |
4774 | * while increasing bulk throughput. | |
406d4965 | 4775 | * This functionality is controlled by ethtool's coalescing settings. |
b980ac18 JK |
4776 | * NOTE: These calculations are only valid when operating in a single- |
4777 | * queue environment. | |
9d5c8243 | 4778 | **/ |
0ba82994 AD |
4779 | static void igb_update_itr(struct igb_q_vector *q_vector, |
4780 | struct igb_ring_container *ring_container) | |
9d5c8243 | 4781 | { |
0ba82994 AD |
4782 | unsigned int packets = ring_container->total_packets; |
4783 | unsigned int bytes = ring_container->total_bytes; | |
4784 | u8 itrval = ring_container->itr; | |
9d5c8243 | 4785 | |
0ba82994 | 4786 | /* no packets, exit with status unchanged */ |
9d5c8243 | 4787 | if (packets == 0) |
0ba82994 | 4788 | return; |
9d5c8243 | 4789 | |
0ba82994 | 4790 | switch (itrval) { |
9d5c8243 AK |
4791 | case lowest_latency: |
4792 | /* handle TSO and jumbo frames */ | |
4793 | if (bytes/packets > 8000) | |
0ba82994 | 4794 | itrval = bulk_latency; |
9d5c8243 | 4795 | else if ((packets < 5) && (bytes > 512)) |
0ba82994 | 4796 | itrval = low_latency; |
9d5c8243 AK |
4797 | break; |
4798 | case low_latency: /* 50 usec aka 20000 ints/s */ | |
4799 | if (bytes > 10000) { | |
4800 | /* this if handles the TSO accounting */ | |
d34a15ab | 4801 | if (bytes/packets > 8000) |
0ba82994 | 4802 | itrval = bulk_latency; |
d34a15ab | 4803 | else if ((packets < 10) || ((bytes/packets) > 1200)) |
0ba82994 | 4804 | itrval = bulk_latency; |
d34a15ab | 4805 | else if ((packets > 35)) |
0ba82994 | 4806 | itrval = lowest_latency; |
9d5c8243 | 4807 | } else if (bytes/packets > 2000) { |
0ba82994 | 4808 | itrval = bulk_latency; |
9d5c8243 | 4809 | } else if (packets <= 2 && bytes < 512) { |
0ba82994 | 4810 | itrval = lowest_latency; |
9d5c8243 AK |
4811 | } |
4812 | break; | |
4813 | case bulk_latency: /* 250 usec aka 4000 ints/s */ | |
4814 | if (bytes > 25000) { | |
4815 | if (packets > 35) | |
0ba82994 | 4816 | itrval = low_latency; |
1e5c3d21 | 4817 | } else if (bytes < 1500) { |
0ba82994 | 4818 | itrval = low_latency; |
9d5c8243 AK |
4819 | } |
4820 | break; | |
4821 | } | |
4822 | ||
0ba82994 AD |
4823 | /* clear work counters since we have the values we need */ |
4824 | ring_container->total_bytes = 0; | |
4825 | ring_container->total_packets = 0; | |
4826 | ||
4827 | /* write updated itr to ring container */ | |
4828 | ring_container->itr = itrval; | |
9d5c8243 AK |
4829 | } |
4830 | ||
0ba82994 | 4831 | static void igb_set_itr(struct igb_q_vector *q_vector) |
9d5c8243 | 4832 | { |
0ba82994 | 4833 | struct igb_adapter *adapter = q_vector->adapter; |
047e0030 | 4834 | u32 new_itr = q_vector->itr_val; |
0ba82994 | 4835 | u8 current_itr = 0; |
9d5c8243 AK |
4836 | |
4837 | /* for non-gigabit speeds, just fix the interrupt rate at 4000 */ | |
4838 | if (adapter->link_speed != SPEED_1000) { | |
4839 | current_itr = 0; | |
0ba82994 | 4840 | new_itr = IGB_4K_ITR; |
9d5c8243 AK |
4841 | goto set_itr_now; |
4842 | } | |
4843 | ||
0ba82994 AD |
4844 | igb_update_itr(q_vector, &q_vector->tx); |
4845 | igb_update_itr(q_vector, &q_vector->rx); | |
9d5c8243 | 4846 | |
0ba82994 | 4847 | current_itr = max(q_vector->rx.itr, q_vector->tx.itr); |
9d5c8243 | 4848 | |
6eb5a7f1 | 4849 | /* conservative mode (itr 3) eliminates the lowest_latency setting */ |
0ba82994 AD |
4850 | if (current_itr == lowest_latency && |
4851 | ((q_vector->rx.ring && adapter->rx_itr_setting == 3) || | |
4852 | (!q_vector->rx.ring && adapter->tx_itr_setting == 3))) | |
6eb5a7f1 AD |
4853 | current_itr = low_latency; |
4854 | ||
9d5c8243 AK |
4855 | switch (current_itr) { |
4856 | /* counts and packets in update_itr are dependent on these numbers */ | |
4857 | case lowest_latency: | |
0ba82994 | 4858 | new_itr = IGB_70K_ITR; /* 70,000 ints/sec */ |
9d5c8243 AK |
4859 | break; |
4860 | case low_latency: | |
0ba82994 | 4861 | new_itr = IGB_20K_ITR; /* 20,000 ints/sec */ |
9d5c8243 AK |
4862 | break; |
4863 | case bulk_latency: | |
0ba82994 | 4864 | new_itr = IGB_4K_ITR; /* 4,000 ints/sec */ |
9d5c8243 AK |
4865 | break; |
4866 | default: | |
4867 | break; | |
4868 | } | |
4869 | ||
4870 | set_itr_now: | |
047e0030 | 4871 | if (new_itr != q_vector->itr_val) { |
9d5c8243 AK |
4872 | /* this attempts to bias the interrupt rate towards Bulk |
4873 | * by adding intermediate steps when interrupt rate is | |
b980ac18 JK |
4874 | * increasing |
4875 | */ | |
047e0030 | 4876 | new_itr = new_itr > q_vector->itr_val ? |
b980ac18 JK |
4877 | max((new_itr * q_vector->itr_val) / |
4878 | (new_itr + (q_vector->itr_val >> 2)), | |
4879 | new_itr) : new_itr; | |
9d5c8243 AK |
4880 | /* Don't write the value here; it resets the adapter's |
4881 | * internal timer, and causes us to delay far longer than | |
4882 | * we should between interrupts. Instead, we write the ITR | |
4883 | * value at the beginning of the next interrupt so the timing | |
4884 | * ends up being correct. | |
4885 | */ | |
047e0030 AD |
4886 | q_vector->itr_val = new_itr; |
4887 | q_vector->set_itr = 1; | |
9d5c8243 | 4888 | } |
9d5c8243 AK |
4889 | } |
4890 | ||
c50b52a0 SH |
4891 | static void igb_tx_ctxtdesc(struct igb_ring *tx_ring, u32 vlan_macip_lens, |
4892 | u32 type_tucmd, u32 mss_l4len_idx) | |
7d13a7d0 AD |
4893 | { |
4894 | struct e1000_adv_tx_context_desc *context_desc; | |
4895 | u16 i = tx_ring->next_to_use; | |
4896 | ||
4897 | context_desc = IGB_TX_CTXTDESC(tx_ring, i); | |
4898 | ||
4899 | i++; | |
4900 | tx_ring->next_to_use = (i < tx_ring->count) ? i : 0; | |
4901 | ||
4902 | /* set bits to identify this as an advanced context descriptor */ | |
4903 | type_tucmd |= E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT; | |
4904 | ||
4905 | /* For 82575, context index must be unique per ring. */ | |
866cff06 | 4906 | if (test_bit(IGB_RING_FLAG_TX_CTX_IDX, &tx_ring->flags)) |
7d13a7d0 AD |
4907 | mss_l4len_idx |= tx_ring->reg_idx << 4; |
4908 | ||
4909 | context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); | |
4910 | context_desc->seqnum_seed = 0; | |
4911 | context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd); | |
4912 | context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx); | |
4913 | } | |
4914 | ||
7af40ad9 AD |
4915 | static int igb_tso(struct igb_ring *tx_ring, |
4916 | struct igb_tx_buffer *first, | |
4917 | u8 *hdr_len) | |
9d5c8243 | 4918 | { |
e10715d3 | 4919 | u32 vlan_macip_lens, type_tucmd, mss_l4len_idx; |
7af40ad9 | 4920 | struct sk_buff *skb = first->skb; |
e10715d3 AD |
4921 | union { |
4922 | struct iphdr *v4; | |
4923 | struct ipv6hdr *v6; | |
4924 | unsigned char *hdr; | |
4925 | } ip; | |
4926 | union { | |
4927 | struct tcphdr *tcp; | |
4928 | unsigned char *hdr; | |
4929 | } l4; | |
4930 | u32 paylen, l4_offset; | |
06c14e5a | 4931 | int err; |
7d13a7d0 | 4932 | |
ed6aa105 AD |
4933 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
4934 | return 0; | |
4935 | ||
7d13a7d0 AD |
4936 | if (!skb_is_gso(skb)) |
4937 | return 0; | |
9d5c8243 | 4938 | |
06c14e5a FR |
4939 | err = skb_cow_head(skb, 0); |
4940 | if (err < 0) | |
4941 | return err; | |
9d5c8243 | 4942 | |
e10715d3 AD |
4943 | ip.hdr = skb_network_header(skb); |
4944 | l4.hdr = skb_checksum_start(skb); | |
4945 | ||
7d13a7d0 AD |
4946 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
4947 | type_tucmd = E1000_ADVTXD_TUCMD_L4T_TCP; | |
9d5c8243 | 4948 | |
e10715d3 AD |
4949 | /* initialize outer IP header fields */ |
4950 | if (ip.v4->version == 4) { | |
516165a1 AD |
4951 | unsigned char *csum_start = skb_checksum_start(skb); |
4952 | unsigned char *trans_start = ip.hdr + (ip.v4->ihl * 4); | |
4953 | ||
e10715d3 AD |
4954 | /* IP header will have to cancel out any data that |
4955 | * is not a part of the outer IP header | |
4956 | */ | |
516165a1 AD |
4957 | ip.v4->check = csum_fold(csum_partial(trans_start, |
4958 | csum_start - trans_start, | |
4959 | 0)); | |
7d13a7d0 | 4960 | type_tucmd |= E1000_ADVTXD_TUCMD_IPV4; |
e10715d3 AD |
4961 | |
4962 | ip.v4->tot_len = 0; | |
7af40ad9 AD |
4963 | first->tx_flags |= IGB_TX_FLAGS_TSO | |
4964 | IGB_TX_FLAGS_CSUM | | |
4965 | IGB_TX_FLAGS_IPV4; | |
e10715d3 AD |
4966 | } else { |
4967 | ip.v6->payload_len = 0; | |
7af40ad9 AD |
4968 | first->tx_flags |= IGB_TX_FLAGS_TSO | |
4969 | IGB_TX_FLAGS_CSUM; | |
9d5c8243 AK |
4970 | } |
4971 | ||
e10715d3 AD |
4972 | /* determine offset of inner transport header */ |
4973 | l4_offset = l4.hdr - skb->data; | |
4974 | ||
4975 | /* compute length of segmentation header */ | |
4976 | *hdr_len = (l4.tcp->doff * 4) + l4_offset; | |
4977 | ||
4978 | /* remove payload length from inner checksum */ | |
4979 | paylen = skb->len - l4_offset; | |
4980 | csum_replace_by_diff(&l4.tcp->check, htonl(paylen)); | |
9d5c8243 | 4981 | |
7af40ad9 AD |
4982 | /* update gso size and bytecount with header size */ |
4983 | first->gso_segs = skb_shinfo(skb)->gso_segs; | |
4984 | first->bytecount += (first->gso_segs - 1) * *hdr_len; | |
4985 | ||
9d5c8243 | 4986 | /* MSS L4LEN IDX */ |
e10715d3 | 4987 | mss_l4len_idx = (*hdr_len - l4_offset) << E1000_ADVTXD_L4LEN_SHIFT; |
7d13a7d0 | 4988 | mss_l4len_idx |= skb_shinfo(skb)->gso_size << E1000_ADVTXD_MSS_SHIFT; |
9d5c8243 | 4989 | |
7d13a7d0 | 4990 | /* VLAN MACLEN IPLEN */ |
e10715d3 AD |
4991 | vlan_macip_lens = l4.hdr - ip.hdr; |
4992 | vlan_macip_lens |= (ip.hdr - skb->data) << E1000_ADVTXD_MACLEN_SHIFT; | |
7af40ad9 | 4993 | vlan_macip_lens |= first->tx_flags & IGB_TX_FLAGS_VLAN_MASK; |
9d5c8243 | 4994 | |
7d13a7d0 | 4995 | igb_tx_ctxtdesc(tx_ring, vlan_macip_lens, type_tucmd, mss_l4len_idx); |
9d5c8243 | 4996 | |
7d13a7d0 | 4997 | return 1; |
9d5c8243 AK |
4998 | } |
4999 | ||
6e033700 AD |
5000 | static inline bool igb_ipv6_csum_is_sctp(struct sk_buff *skb) |
5001 | { | |
5002 | unsigned int offset = 0; | |
5003 | ||
5004 | ipv6_find_hdr(skb, &offset, IPPROTO_SCTP, NULL, NULL); | |
5005 | ||
5006 | return offset == skb_checksum_start_offset(skb); | |
5007 | } | |
5008 | ||
7af40ad9 | 5009 | static void igb_tx_csum(struct igb_ring *tx_ring, struct igb_tx_buffer *first) |
9d5c8243 | 5010 | { |
7af40ad9 | 5011 | struct sk_buff *skb = first->skb; |
7d13a7d0 | 5012 | u32 vlan_macip_lens = 0; |
7d13a7d0 | 5013 | u32 type_tucmd = 0; |
9d5c8243 | 5014 | |
7d13a7d0 | 5015 | if (skb->ip_summed != CHECKSUM_PARTIAL) { |
6e033700 | 5016 | csum_failed: |
7af40ad9 AD |
5017 | if (!(first->tx_flags & IGB_TX_FLAGS_VLAN)) |
5018 | return; | |
6e033700 AD |
5019 | goto no_csum; |
5020 | } | |
fa4a7ef3 | 5021 | |
6e033700 AD |
5022 | switch (skb->csum_offset) { |
5023 | case offsetof(struct tcphdr, check): | |
5024 | type_tucmd = E1000_ADVTXD_TUCMD_L4T_TCP; | |
5025 | /* fall through */ | |
5026 | case offsetof(struct udphdr, check): | |
5027 | break; | |
5028 | case offsetof(struct sctphdr, checksum): | |
5029 | /* validate that this is actually an SCTP request */ | |
5030 | if (((first->protocol == htons(ETH_P_IP)) && | |
5031 | (ip_hdr(skb)->protocol == IPPROTO_SCTP)) || | |
5032 | ((first->protocol == htons(ETH_P_IPV6)) && | |
5033 | igb_ipv6_csum_is_sctp(skb))) { | |
5034 | type_tucmd = E1000_ADVTXD_TUCMD_L4T_SCTP; | |
7d13a7d0 | 5035 | break; |
9d5c8243 | 5036 | } |
6e033700 AD |
5037 | default: |
5038 | skb_checksum_help(skb); | |
5039 | goto csum_failed; | |
7d13a7d0 | 5040 | } |
9d5c8243 | 5041 | |
6e033700 AD |
5042 | /* update TX checksum flag */ |
5043 | first->tx_flags |= IGB_TX_FLAGS_CSUM; | |
5044 | vlan_macip_lens = skb_checksum_start_offset(skb) - | |
5045 | skb_network_offset(skb); | |
5046 | no_csum: | |
7d13a7d0 | 5047 | vlan_macip_lens |= skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT; |
7af40ad9 | 5048 | vlan_macip_lens |= first->tx_flags & IGB_TX_FLAGS_VLAN_MASK; |
9d5c8243 | 5049 | |
6e033700 | 5050 | igb_tx_ctxtdesc(tx_ring, vlan_macip_lens, type_tucmd, 0); |
9d5c8243 AK |
5051 | } |
5052 | ||
1d9daf45 AD |
5053 | #define IGB_SET_FLAG(_input, _flag, _result) \ |
5054 | ((_flag <= _result) ? \ | |
5055 | ((u32)(_input & _flag) * (_result / _flag)) : \ | |
5056 | ((u32)(_input & _flag) / (_flag / _result))) | |
5057 | ||
5058 | static u32 igb_tx_cmd_type(struct sk_buff *skb, u32 tx_flags) | |
e032afc8 AD |
5059 | { |
5060 | /* set type for advanced descriptor with frame checksum insertion */ | |
1d9daf45 AD |
5061 | u32 cmd_type = E1000_ADVTXD_DTYP_DATA | |
5062 | E1000_ADVTXD_DCMD_DEXT | | |
5063 | E1000_ADVTXD_DCMD_IFCS; | |
e032afc8 AD |
5064 | |
5065 | /* set HW vlan bit if vlan is present */ | |
1d9daf45 AD |
5066 | cmd_type |= IGB_SET_FLAG(tx_flags, IGB_TX_FLAGS_VLAN, |
5067 | (E1000_ADVTXD_DCMD_VLE)); | |
5068 | ||
5069 | /* set segmentation bits for TSO */ | |
5070 | cmd_type |= IGB_SET_FLAG(tx_flags, IGB_TX_FLAGS_TSO, | |
5071 | (E1000_ADVTXD_DCMD_TSE)); | |
e032afc8 AD |
5072 | |
5073 | /* set timestamp bit if present */ | |
1d9daf45 AD |
5074 | cmd_type |= IGB_SET_FLAG(tx_flags, IGB_TX_FLAGS_TSTAMP, |
5075 | (E1000_ADVTXD_MAC_TSTAMP)); | |
e032afc8 | 5076 | |
1d9daf45 AD |
5077 | /* insert frame checksum */ |
5078 | cmd_type ^= IGB_SET_FLAG(skb->no_fcs, 1, E1000_ADVTXD_DCMD_IFCS); | |
e032afc8 AD |
5079 | |
5080 | return cmd_type; | |
5081 | } | |
5082 | ||
7af40ad9 AD |
5083 | static void igb_tx_olinfo_status(struct igb_ring *tx_ring, |
5084 | union e1000_adv_tx_desc *tx_desc, | |
5085 | u32 tx_flags, unsigned int paylen) | |
e032afc8 AD |
5086 | { |
5087 | u32 olinfo_status = paylen << E1000_ADVTXD_PAYLEN_SHIFT; | |
5088 | ||
1d9daf45 AD |
5089 | /* 82575 requires a unique index per ring */ |
5090 | if (test_bit(IGB_RING_FLAG_TX_CTX_IDX, &tx_ring->flags)) | |
e032afc8 AD |
5091 | olinfo_status |= tx_ring->reg_idx << 4; |
5092 | ||
5093 | /* insert L4 checksum */ | |
1d9daf45 AD |
5094 | olinfo_status |= IGB_SET_FLAG(tx_flags, |
5095 | IGB_TX_FLAGS_CSUM, | |
5096 | (E1000_TXD_POPTS_TXSM << 8)); | |
e032afc8 | 5097 | |
1d9daf45 AD |
5098 | /* insert IPv4 checksum */ |
5099 | olinfo_status |= IGB_SET_FLAG(tx_flags, | |
5100 | IGB_TX_FLAGS_IPV4, | |
5101 | (E1000_TXD_POPTS_IXSM << 8)); | |
e032afc8 | 5102 | |
7af40ad9 | 5103 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
e032afc8 AD |
5104 | } |
5105 | ||
6f19e12f DM |
5106 | static int __igb_maybe_stop_tx(struct igb_ring *tx_ring, const u16 size) |
5107 | { | |
5108 | struct net_device *netdev = tx_ring->netdev; | |
5109 | ||
5110 | netif_stop_subqueue(netdev, tx_ring->queue_index); | |
5111 | ||
5112 | /* Herbert's original patch had: | |
5113 | * smp_mb__after_netif_stop_queue(); | |
5114 | * but since that doesn't exist yet, just open code it. | |
5115 | */ | |
5116 | smp_mb(); | |
5117 | ||
5118 | /* We need to check again in a case another CPU has just | |
5119 | * made room available. | |
5120 | */ | |
5121 | if (igb_desc_unused(tx_ring) < size) | |
5122 | return -EBUSY; | |
5123 | ||
5124 | /* A reprieve! */ | |
5125 | netif_wake_subqueue(netdev, tx_ring->queue_index); | |
5126 | ||
5127 | u64_stats_update_begin(&tx_ring->tx_syncp2); | |
5128 | tx_ring->tx_stats.restart_queue2++; | |
5129 | u64_stats_update_end(&tx_ring->tx_syncp2); | |
5130 | ||
5131 | return 0; | |
5132 | } | |
5133 | ||
5134 | static inline int igb_maybe_stop_tx(struct igb_ring *tx_ring, const u16 size) | |
5135 | { | |
5136 | if (igb_desc_unused(tx_ring) >= size) | |
5137 | return 0; | |
5138 | return __igb_maybe_stop_tx(tx_ring, size); | |
5139 | } | |
5140 | ||
7af40ad9 AD |
5141 | static void igb_tx_map(struct igb_ring *tx_ring, |
5142 | struct igb_tx_buffer *first, | |
ebe42d16 | 5143 | const u8 hdr_len) |
9d5c8243 | 5144 | { |
7af40ad9 | 5145 | struct sk_buff *skb = first->skb; |
c9f14bf3 | 5146 | struct igb_tx_buffer *tx_buffer; |
ebe42d16 | 5147 | union e1000_adv_tx_desc *tx_desc; |
80d0759e | 5148 | struct skb_frag_struct *frag; |
ebe42d16 | 5149 | dma_addr_t dma; |
80d0759e | 5150 | unsigned int data_len, size; |
7af40ad9 | 5151 | u32 tx_flags = first->tx_flags; |
1d9daf45 | 5152 | u32 cmd_type = igb_tx_cmd_type(skb, tx_flags); |
ebe42d16 | 5153 | u16 i = tx_ring->next_to_use; |
ebe42d16 AD |
5154 | |
5155 | tx_desc = IGB_TX_DESC(tx_ring, i); | |
5156 | ||
80d0759e AD |
5157 | igb_tx_olinfo_status(tx_ring, tx_desc, tx_flags, skb->len - hdr_len); |
5158 | ||
5159 | size = skb_headlen(skb); | |
5160 | data_len = skb->data_len; | |
ebe42d16 AD |
5161 | |
5162 | dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE); | |
9d5c8243 | 5163 | |
80d0759e AD |
5164 | tx_buffer = first; |
5165 | ||
5166 | for (frag = &skb_shinfo(skb)->frags[0];; frag++) { | |
5167 | if (dma_mapping_error(tx_ring->dev, dma)) | |
5168 | goto dma_error; | |
5169 | ||
5170 | /* record length, and DMA address */ | |
5171 | dma_unmap_len_set(tx_buffer, len, size); | |
5172 | dma_unmap_addr_set(tx_buffer, dma, dma); | |
5173 | ||
5174 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
ebe42d16 | 5175 | |
ebe42d16 AD |
5176 | while (unlikely(size > IGB_MAX_DATA_PER_TXD)) { |
5177 | tx_desc->read.cmd_type_len = | |
1d9daf45 | 5178 | cpu_to_le32(cmd_type ^ IGB_MAX_DATA_PER_TXD); |
ebe42d16 AD |
5179 | |
5180 | i++; | |
5181 | tx_desc++; | |
5182 | if (i == tx_ring->count) { | |
5183 | tx_desc = IGB_TX_DESC(tx_ring, 0); | |
5184 | i = 0; | |
5185 | } | |
80d0759e | 5186 | tx_desc->read.olinfo_status = 0; |
ebe42d16 AD |
5187 | |
5188 | dma += IGB_MAX_DATA_PER_TXD; | |
5189 | size -= IGB_MAX_DATA_PER_TXD; | |
5190 | ||
ebe42d16 AD |
5191 | tx_desc->read.buffer_addr = cpu_to_le64(dma); |
5192 | } | |
5193 | ||
5194 | if (likely(!data_len)) | |
5195 | break; | |
2bbfebe2 | 5196 | |
1d9daf45 | 5197 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size); |
9d5c8243 | 5198 | |
65689fef | 5199 | i++; |
ebe42d16 AD |
5200 | tx_desc++; |
5201 | if (i == tx_ring->count) { | |
5202 | tx_desc = IGB_TX_DESC(tx_ring, 0); | |
65689fef | 5203 | i = 0; |
ebe42d16 | 5204 | } |
80d0759e | 5205 | tx_desc->read.olinfo_status = 0; |
65689fef | 5206 | |
9e903e08 | 5207 | size = skb_frag_size(frag); |
ebe42d16 AD |
5208 | data_len -= size; |
5209 | ||
5210 | dma = skb_frag_dma_map(tx_ring->dev, frag, 0, | |
80d0759e | 5211 | size, DMA_TO_DEVICE); |
6366ad33 | 5212 | |
c9f14bf3 | 5213 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
9d5c8243 AK |
5214 | } |
5215 | ||
ebe42d16 | 5216 | /* write last descriptor with RS and EOP bits */ |
1d9daf45 AD |
5217 | cmd_type |= size | IGB_TXD_DCMD; |
5218 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type); | |
8542db05 | 5219 | |
80d0759e AD |
5220 | netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); |
5221 | ||
8542db05 AD |
5222 | /* set the timestamp */ |
5223 | first->time_stamp = jiffies; | |
5224 | ||
b980ac18 | 5225 | /* Force memory writes to complete before letting h/w know there |
ebe42d16 AD |
5226 | * are new descriptors to fetch. (Only applicable for weak-ordered |
5227 | * memory model archs, such as IA-64). | |
5228 | * | |
5229 | * We also need this memory barrier to make certain all of the | |
5230 | * status bits have been updated before next_to_watch is written. | |
5231 | */ | |
5232 | wmb(); | |
5233 | ||
8542db05 | 5234 | /* set next_to_watch value indicating a packet is present */ |
ebe42d16 | 5235 | first->next_to_watch = tx_desc; |
9d5c8243 | 5236 | |
ebe42d16 AD |
5237 | i++; |
5238 | if (i == tx_ring->count) | |
5239 | i = 0; | |
6366ad33 | 5240 | |
ebe42d16 | 5241 | tx_ring->next_to_use = i; |
6366ad33 | 5242 | |
6f19e12f DM |
5243 | /* Make sure there is space in the ring for the next send. */ |
5244 | igb_maybe_stop_tx(tx_ring, DESC_NEEDED); | |
5245 | ||
5246 | if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) { | |
0b725a2c DM |
5247 | writel(i, tx_ring->tail); |
5248 | ||
5249 | /* we need this if more than one processor can write to our tail | |
5250 | * at a time, it synchronizes IO on IA64/Altix systems | |
5251 | */ | |
5252 | mmiowb(); | |
5253 | } | |
ebe42d16 AD |
5254 | return; |
5255 | ||
5256 | dma_error: | |
5257 | dev_err(tx_ring->dev, "TX DMA map failed\n"); | |
5258 | ||
5259 | /* clear dma mappings for failed tx_buffer_info map */ | |
5260 | for (;;) { | |
c9f14bf3 AD |
5261 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
5262 | igb_unmap_and_free_tx_resource(tx_ring, tx_buffer); | |
5263 | if (tx_buffer == first) | |
ebe42d16 | 5264 | break; |
a77ff709 NN |
5265 | if (i == 0) |
5266 | i = tx_ring->count; | |
6366ad33 | 5267 | i--; |
6366ad33 AD |
5268 | } |
5269 | ||
9d5c8243 | 5270 | tx_ring->next_to_use = i; |
9d5c8243 AK |
5271 | } |
5272 | ||
cd392f5c AD |
5273 | netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb, |
5274 | struct igb_ring *tx_ring) | |
9d5c8243 | 5275 | { |
8542db05 | 5276 | struct igb_tx_buffer *first; |
ebe42d16 | 5277 | int tso; |
91d4ee33 | 5278 | u32 tx_flags = 0; |
2ee52ad4 | 5279 | unsigned short f; |
21ba6fe1 | 5280 | u16 count = TXD_USE_COUNT(skb_headlen(skb)); |
31f6adbb | 5281 | __be16 protocol = vlan_get_protocol(skb); |
91d4ee33 | 5282 | u8 hdr_len = 0; |
9d5c8243 | 5283 | |
21ba6fe1 AD |
5284 | /* need: 1 descriptor per page * PAGE_SIZE/IGB_MAX_DATA_PER_TXD, |
5285 | * + 1 desc for skb_headlen/IGB_MAX_DATA_PER_TXD, | |
9d5c8243 | 5286 | * + 2 desc gap to keep tail from touching head, |
9d5c8243 | 5287 | * + 1 desc for context descriptor, |
21ba6fe1 AD |
5288 | * otherwise try next time |
5289 | */ | |
2ee52ad4 AD |
5290 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) |
5291 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); | |
21ba6fe1 AD |
5292 | |
5293 | if (igb_maybe_stop_tx(tx_ring, count + 3)) { | |
9d5c8243 | 5294 | /* this is a hard error */ |
9d5c8243 AK |
5295 | return NETDEV_TX_BUSY; |
5296 | } | |
33af6bcc | 5297 | |
7af40ad9 AD |
5298 | /* record the location of the first descriptor for this packet */ |
5299 | first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; | |
5300 | first->skb = skb; | |
5301 | first->bytecount = skb->len; | |
5302 | first->gso_segs = 1; | |
5303 | ||
b646c22e AD |
5304 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { |
5305 | struct igb_adapter *adapter = netdev_priv(tx_ring->netdev); | |
1f6e8178 | 5306 | |
ed4420a3 JK |
5307 | if (!test_and_set_bit_lock(__IGB_PTP_TX_IN_PROGRESS, |
5308 | &adapter->state)) { | |
b646c22e AD |
5309 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; |
5310 | tx_flags |= IGB_TX_FLAGS_TSTAMP; | |
5311 | ||
5312 | adapter->ptp_tx_skb = skb_get(skb); | |
5313 | adapter->ptp_tx_start = jiffies; | |
5314 | if (adapter->hw.mac.type == e1000_82576) | |
5315 | schedule_work(&adapter->ptp_tx_work); | |
5316 | } | |
33af6bcc | 5317 | } |
9d5c8243 | 5318 | |
afc835d1 JK |
5319 | skb_tx_timestamp(skb); |
5320 | ||
df8a39de | 5321 | if (skb_vlan_tag_present(skb)) { |
9d5c8243 | 5322 | tx_flags |= IGB_TX_FLAGS_VLAN; |
df8a39de | 5323 | tx_flags |= (skb_vlan_tag_get(skb) << IGB_TX_FLAGS_VLAN_SHIFT); |
9d5c8243 AK |
5324 | } |
5325 | ||
7af40ad9 AD |
5326 | /* record initial flags and protocol */ |
5327 | first->tx_flags = tx_flags; | |
5328 | first->protocol = protocol; | |
cdfd01fc | 5329 | |
7af40ad9 AD |
5330 | tso = igb_tso(tx_ring, first, &hdr_len); |
5331 | if (tso < 0) | |
7d13a7d0 | 5332 | goto out_drop; |
7af40ad9 AD |
5333 | else if (!tso) |
5334 | igb_tx_csum(tx_ring, first); | |
9d5c8243 | 5335 | |
7af40ad9 | 5336 | igb_tx_map(tx_ring, first, hdr_len); |
85ad76b2 | 5337 | |
9d5c8243 | 5338 | return NETDEV_TX_OK; |
7d13a7d0 AD |
5339 | |
5340 | out_drop: | |
7af40ad9 AD |
5341 | igb_unmap_and_free_tx_resource(tx_ring, first); |
5342 | ||
7d13a7d0 | 5343 | return NETDEV_TX_OK; |
9d5c8243 AK |
5344 | } |
5345 | ||
0b725a2c DM |
5346 | static inline struct igb_ring *igb_tx_queue_mapping(struct igb_adapter *adapter, |
5347 | struct sk_buff *skb) | |
1cc3bd87 | 5348 | { |
0b725a2c DM |
5349 | unsigned int r_idx = skb->queue_mapping; |
5350 | ||
1cc3bd87 AD |
5351 | if (r_idx >= adapter->num_tx_queues) |
5352 | r_idx = r_idx % adapter->num_tx_queues; | |
5353 | ||
5354 | return adapter->tx_ring[r_idx]; | |
5355 | } | |
5356 | ||
cd392f5c AD |
5357 | static netdev_tx_t igb_xmit_frame(struct sk_buff *skb, |
5358 | struct net_device *netdev) | |
9d5c8243 AK |
5359 | { |
5360 | struct igb_adapter *adapter = netdev_priv(netdev); | |
b1a436c3 | 5361 | |
b980ac18 | 5362 | /* The minimum packet size with TCTL.PSP set is 17 so pad the skb |
1cc3bd87 AD |
5363 | * in order to meet this minimum size requirement. |
5364 | */ | |
a94d9e22 AD |
5365 | if (skb_put_padto(skb, 17)) |
5366 | return NETDEV_TX_OK; | |
9d5c8243 | 5367 | |
1cc3bd87 | 5368 | return igb_xmit_frame_ring(skb, igb_tx_queue_mapping(adapter, skb)); |
9d5c8243 AK |
5369 | } |
5370 | ||
5371 | /** | |
b980ac18 JK |
5372 | * igb_tx_timeout - Respond to a Tx Hang |
5373 | * @netdev: network interface device structure | |
9d5c8243 AK |
5374 | **/ |
5375 | static void igb_tx_timeout(struct net_device *netdev) | |
5376 | { | |
5377 | struct igb_adapter *adapter = netdev_priv(netdev); | |
5378 | struct e1000_hw *hw = &adapter->hw; | |
5379 | ||
5380 | /* Do the reset outside of interrupt context */ | |
5381 | adapter->tx_timeout_count++; | |
f7ba205e | 5382 | |
06218a8d | 5383 | if (hw->mac.type >= e1000_82580) |
55cac248 AD |
5384 | hw->dev_spec._82575.global_device_reset = true; |
5385 | ||
9d5c8243 | 5386 | schedule_work(&adapter->reset_task); |
265de409 AD |
5387 | wr32(E1000_EICS, |
5388 | (adapter->eims_enable_mask & ~adapter->eims_other)); | |
9d5c8243 AK |
5389 | } |
5390 | ||
5391 | static void igb_reset_task(struct work_struct *work) | |
5392 | { | |
5393 | struct igb_adapter *adapter; | |
5394 | adapter = container_of(work, struct igb_adapter, reset_task); | |
5395 | ||
c97ec42a TI |
5396 | igb_dump(adapter); |
5397 | netdev_err(adapter->netdev, "Reset adapter\n"); | |
9d5c8243 AK |
5398 | igb_reinit_locked(adapter); |
5399 | } | |
5400 | ||
5401 | /** | |
b980ac18 JK |
5402 | * igb_get_stats64 - Get System Network Statistics |
5403 | * @netdev: network interface device structure | |
5404 | * @stats: rtnl_link_stats64 pointer | |
9d5c8243 | 5405 | **/ |
12dcd86b | 5406 | static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *netdev, |
b980ac18 | 5407 | struct rtnl_link_stats64 *stats) |
9d5c8243 | 5408 | { |
12dcd86b ED |
5409 | struct igb_adapter *adapter = netdev_priv(netdev); |
5410 | ||
5411 | spin_lock(&adapter->stats64_lock); | |
5412 | igb_update_stats(adapter, &adapter->stats64); | |
5413 | memcpy(stats, &adapter->stats64, sizeof(*stats)); | |
5414 | spin_unlock(&adapter->stats64_lock); | |
5415 | ||
5416 | return stats; | |
9d5c8243 AK |
5417 | } |
5418 | ||
5419 | /** | |
b980ac18 JK |
5420 | * igb_change_mtu - Change the Maximum Transfer Unit |
5421 | * @netdev: network interface device structure | |
5422 | * @new_mtu: new value for maximum frame size | |
9d5c8243 | 5423 | * |
b980ac18 | 5424 | * Returns 0 on success, negative on failure |
9d5c8243 AK |
5425 | **/ |
5426 | static int igb_change_mtu(struct net_device *netdev, int new_mtu) | |
5427 | { | |
5428 | struct igb_adapter *adapter = netdev_priv(netdev); | |
090b1795 | 5429 | struct pci_dev *pdev = adapter->pdev; |
153285f9 | 5430 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; |
9d5c8243 | 5431 | |
2ccd994c AD |
5432 | /* adjust max frame to be at least the size of a standard frame */ |
5433 | if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN)) | |
5434 | max_frame = ETH_FRAME_LEN + ETH_FCS_LEN; | |
5435 | ||
9d5c8243 | 5436 | while (test_and_set_bit(__IGB_RESETTING, &adapter->state)) |
0d451e79 | 5437 | usleep_range(1000, 2000); |
73cd78f1 | 5438 | |
9d5c8243 AK |
5439 | /* igb_down has a dependency on max_frame_size */ |
5440 | adapter->max_frame_size = max_frame; | |
559e9c49 | 5441 | |
4c844851 AD |
5442 | if (netif_running(netdev)) |
5443 | igb_down(adapter); | |
9d5c8243 | 5444 | |
090b1795 | 5445 | dev_info(&pdev->dev, "changing MTU from %d to %d\n", |
9d5c8243 AK |
5446 | netdev->mtu, new_mtu); |
5447 | netdev->mtu = new_mtu; | |
5448 | ||
5449 | if (netif_running(netdev)) | |
5450 | igb_up(adapter); | |
5451 | else | |
5452 | igb_reset(adapter); | |
5453 | ||
5454 | clear_bit(__IGB_RESETTING, &adapter->state); | |
5455 | ||
5456 | return 0; | |
5457 | } | |
5458 | ||
5459 | /** | |
b980ac18 JK |
5460 | * igb_update_stats - Update the board statistics counters |
5461 | * @adapter: board private structure | |
9d5c8243 | 5462 | **/ |
12dcd86b ED |
5463 | void igb_update_stats(struct igb_adapter *adapter, |
5464 | struct rtnl_link_stats64 *net_stats) | |
9d5c8243 AK |
5465 | { |
5466 | struct e1000_hw *hw = &adapter->hw; | |
5467 | struct pci_dev *pdev = adapter->pdev; | |
fa3d9a6d | 5468 | u32 reg, mpc; |
3f9c0164 AD |
5469 | int i; |
5470 | u64 bytes, packets; | |
12dcd86b ED |
5471 | unsigned int start; |
5472 | u64 _bytes, _packets; | |
9d5c8243 | 5473 | |
b980ac18 | 5474 | /* Prevent stats update while adapter is being reset, or if the pci |
9d5c8243 AK |
5475 | * connection is down. |
5476 | */ | |
5477 | if (adapter->link_speed == 0) | |
5478 | return; | |
5479 | if (pci_channel_offline(pdev)) | |
5480 | return; | |
5481 | ||
3f9c0164 AD |
5482 | bytes = 0; |
5483 | packets = 0; | |
7f90128e AA |
5484 | |
5485 | rcu_read_lock(); | |
3f9c0164 | 5486 | for (i = 0; i < adapter->num_rx_queues; i++) { |
3025a446 | 5487 | struct igb_ring *ring = adapter->rx_ring[i]; |
e66c083a TF |
5488 | u32 rqdpc = rd32(E1000_RQDPC(i)); |
5489 | if (hw->mac.type >= e1000_i210) | |
5490 | wr32(E1000_RQDPC(i), 0); | |
12dcd86b | 5491 | |
ae1c07a6 AD |
5492 | if (rqdpc) { |
5493 | ring->rx_stats.drops += rqdpc; | |
5494 | net_stats->rx_fifo_errors += rqdpc; | |
5495 | } | |
12dcd86b ED |
5496 | |
5497 | do { | |
57a7744e | 5498 | start = u64_stats_fetch_begin_irq(&ring->rx_syncp); |
12dcd86b ED |
5499 | _bytes = ring->rx_stats.bytes; |
5500 | _packets = ring->rx_stats.packets; | |
57a7744e | 5501 | } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start)); |
12dcd86b ED |
5502 | bytes += _bytes; |
5503 | packets += _packets; | |
3f9c0164 AD |
5504 | } |
5505 | ||
128e45eb AD |
5506 | net_stats->rx_bytes = bytes; |
5507 | net_stats->rx_packets = packets; | |
3f9c0164 AD |
5508 | |
5509 | bytes = 0; | |
5510 | packets = 0; | |
5511 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
3025a446 | 5512 | struct igb_ring *ring = adapter->tx_ring[i]; |
12dcd86b | 5513 | do { |
57a7744e | 5514 | start = u64_stats_fetch_begin_irq(&ring->tx_syncp); |
12dcd86b ED |
5515 | _bytes = ring->tx_stats.bytes; |
5516 | _packets = ring->tx_stats.packets; | |
57a7744e | 5517 | } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start)); |
12dcd86b ED |
5518 | bytes += _bytes; |
5519 | packets += _packets; | |
3f9c0164 | 5520 | } |
128e45eb AD |
5521 | net_stats->tx_bytes = bytes; |
5522 | net_stats->tx_packets = packets; | |
7f90128e | 5523 | rcu_read_unlock(); |
3f9c0164 AD |
5524 | |
5525 | /* read stats registers */ | |
9d5c8243 AK |
5526 | adapter->stats.crcerrs += rd32(E1000_CRCERRS); |
5527 | adapter->stats.gprc += rd32(E1000_GPRC); | |
5528 | adapter->stats.gorc += rd32(E1000_GORCL); | |
5529 | rd32(E1000_GORCH); /* clear GORCL */ | |
5530 | adapter->stats.bprc += rd32(E1000_BPRC); | |
5531 | adapter->stats.mprc += rd32(E1000_MPRC); | |
5532 | adapter->stats.roc += rd32(E1000_ROC); | |
5533 | ||
5534 | adapter->stats.prc64 += rd32(E1000_PRC64); | |
5535 | adapter->stats.prc127 += rd32(E1000_PRC127); | |
5536 | adapter->stats.prc255 += rd32(E1000_PRC255); | |
5537 | adapter->stats.prc511 += rd32(E1000_PRC511); | |
5538 | adapter->stats.prc1023 += rd32(E1000_PRC1023); | |
5539 | adapter->stats.prc1522 += rd32(E1000_PRC1522); | |
5540 | adapter->stats.symerrs += rd32(E1000_SYMERRS); | |
5541 | adapter->stats.sec += rd32(E1000_SEC); | |
5542 | ||
fa3d9a6d MW |
5543 | mpc = rd32(E1000_MPC); |
5544 | adapter->stats.mpc += mpc; | |
5545 | net_stats->rx_fifo_errors += mpc; | |
9d5c8243 AK |
5546 | adapter->stats.scc += rd32(E1000_SCC); |
5547 | adapter->stats.ecol += rd32(E1000_ECOL); | |
5548 | adapter->stats.mcc += rd32(E1000_MCC); | |
5549 | adapter->stats.latecol += rd32(E1000_LATECOL); | |
5550 | adapter->stats.dc += rd32(E1000_DC); | |
5551 | adapter->stats.rlec += rd32(E1000_RLEC); | |
5552 | adapter->stats.xonrxc += rd32(E1000_XONRXC); | |
5553 | adapter->stats.xontxc += rd32(E1000_XONTXC); | |
5554 | adapter->stats.xoffrxc += rd32(E1000_XOFFRXC); | |
5555 | adapter->stats.xofftxc += rd32(E1000_XOFFTXC); | |
5556 | adapter->stats.fcruc += rd32(E1000_FCRUC); | |
5557 | adapter->stats.gptc += rd32(E1000_GPTC); | |
5558 | adapter->stats.gotc += rd32(E1000_GOTCL); | |
5559 | rd32(E1000_GOTCH); /* clear GOTCL */ | |
fa3d9a6d | 5560 | adapter->stats.rnbc += rd32(E1000_RNBC); |
9d5c8243 AK |
5561 | adapter->stats.ruc += rd32(E1000_RUC); |
5562 | adapter->stats.rfc += rd32(E1000_RFC); | |
5563 | adapter->stats.rjc += rd32(E1000_RJC); | |
5564 | adapter->stats.tor += rd32(E1000_TORH); | |
5565 | adapter->stats.tot += rd32(E1000_TOTH); | |
5566 | adapter->stats.tpr += rd32(E1000_TPR); | |
5567 | ||
5568 | adapter->stats.ptc64 += rd32(E1000_PTC64); | |
5569 | adapter->stats.ptc127 += rd32(E1000_PTC127); | |
5570 | adapter->stats.ptc255 += rd32(E1000_PTC255); | |
5571 | adapter->stats.ptc511 += rd32(E1000_PTC511); | |
5572 | adapter->stats.ptc1023 += rd32(E1000_PTC1023); | |
5573 | adapter->stats.ptc1522 += rd32(E1000_PTC1522); | |
5574 | ||
5575 | adapter->stats.mptc += rd32(E1000_MPTC); | |
5576 | adapter->stats.bptc += rd32(E1000_BPTC); | |
5577 | ||
2d0b0f69 NN |
5578 | adapter->stats.tpt += rd32(E1000_TPT); |
5579 | adapter->stats.colc += rd32(E1000_COLC); | |
9d5c8243 AK |
5580 | |
5581 | adapter->stats.algnerrc += rd32(E1000_ALGNERRC); | |
43915c7c NN |
5582 | /* read internal phy specific stats */ |
5583 | reg = rd32(E1000_CTRL_EXT); | |
5584 | if (!(reg & E1000_CTRL_EXT_LINK_MODE_MASK)) { | |
5585 | adapter->stats.rxerrc += rd32(E1000_RXERRC); | |
3dbdf969 CW |
5586 | |
5587 | /* this stat has invalid values on i210/i211 */ | |
5588 | if ((hw->mac.type != e1000_i210) && | |
5589 | (hw->mac.type != e1000_i211)) | |
5590 | adapter->stats.tncrs += rd32(E1000_TNCRS); | |
43915c7c NN |
5591 | } |
5592 | ||
9d5c8243 AK |
5593 | adapter->stats.tsctc += rd32(E1000_TSCTC); |
5594 | adapter->stats.tsctfc += rd32(E1000_TSCTFC); | |
5595 | ||
5596 | adapter->stats.iac += rd32(E1000_IAC); | |
5597 | adapter->stats.icrxoc += rd32(E1000_ICRXOC); | |
5598 | adapter->stats.icrxptc += rd32(E1000_ICRXPTC); | |
5599 | adapter->stats.icrxatc += rd32(E1000_ICRXATC); | |
5600 | adapter->stats.ictxptc += rd32(E1000_ICTXPTC); | |
5601 | adapter->stats.ictxatc += rd32(E1000_ICTXATC); | |
5602 | adapter->stats.ictxqec += rd32(E1000_ICTXQEC); | |
5603 | adapter->stats.ictxqmtc += rd32(E1000_ICTXQMTC); | |
5604 | adapter->stats.icrxdmtc += rd32(E1000_ICRXDMTC); | |
5605 | ||
5606 | /* Fill out the OS statistics structure */ | |
128e45eb AD |
5607 | net_stats->multicast = adapter->stats.mprc; |
5608 | net_stats->collisions = adapter->stats.colc; | |
9d5c8243 AK |
5609 | |
5610 | /* Rx Errors */ | |
5611 | ||
5612 | /* RLEC on some newer hardware can be incorrect so build | |
b980ac18 JK |
5613 | * our own version based on RUC and ROC |
5614 | */ | |
128e45eb | 5615 | net_stats->rx_errors = adapter->stats.rxerrc + |
9d5c8243 AK |
5616 | adapter->stats.crcerrs + adapter->stats.algnerrc + |
5617 | adapter->stats.ruc + adapter->stats.roc + | |
5618 | adapter->stats.cexterr; | |
128e45eb AD |
5619 | net_stats->rx_length_errors = adapter->stats.ruc + |
5620 | adapter->stats.roc; | |
5621 | net_stats->rx_crc_errors = adapter->stats.crcerrs; | |
5622 | net_stats->rx_frame_errors = adapter->stats.algnerrc; | |
5623 | net_stats->rx_missed_errors = adapter->stats.mpc; | |
9d5c8243 AK |
5624 | |
5625 | /* Tx Errors */ | |
128e45eb AD |
5626 | net_stats->tx_errors = adapter->stats.ecol + |
5627 | adapter->stats.latecol; | |
5628 | net_stats->tx_aborted_errors = adapter->stats.ecol; | |
5629 | net_stats->tx_window_errors = adapter->stats.latecol; | |
5630 | net_stats->tx_carrier_errors = adapter->stats.tncrs; | |
9d5c8243 AK |
5631 | |
5632 | /* Tx Dropped needs to be maintained elsewhere */ | |
5633 | ||
9d5c8243 AK |
5634 | /* Management Stats */ |
5635 | adapter->stats.mgptc += rd32(E1000_MGTPTC); | |
5636 | adapter->stats.mgprc += rd32(E1000_MGTPRC); | |
5637 | adapter->stats.mgpdc += rd32(E1000_MGTPDC); | |
0a915b95 CW |
5638 | |
5639 | /* OS2BMC Stats */ | |
5640 | reg = rd32(E1000_MANC); | |
5641 | if (reg & E1000_MANC_EN_BMC2OS) { | |
5642 | adapter->stats.o2bgptc += rd32(E1000_O2BGPTC); | |
5643 | adapter->stats.o2bspc += rd32(E1000_O2BSPC); | |
5644 | adapter->stats.b2ospc += rd32(E1000_B2OSPC); | |
5645 | adapter->stats.b2ogprc += rd32(E1000_B2OGPRC); | |
5646 | } | |
9d5c8243 AK |
5647 | } |
5648 | ||
61d7f75f RC |
5649 | static void igb_tsync_interrupt(struct igb_adapter *adapter) |
5650 | { | |
5651 | struct e1000_hw *hw = &adapter->hw; | |
00c65578 | 5652 | struct ptp_clock_event event; |
40c9b079 | 5653 | struct timespec64 ts; |
720db4ff | 5654 | u32 ack = 0, tsauxc, sec, nsec, tsicr = rd32(E1000_TSICR); |
00c65578 RC |
5655 | |
5656 | if (tsicr & TSINTR_SYS_WRAP) { | |
5657 | event.type = PTP_CLOCK_PPS; | |
5658 | if (adapter->ptp_caps.pps) | |
5659 | ptp_clock_event(adapter->ptp_clock, &event); | |
5660 | else | |
5661 | dev_err(&adapter->pdev->dev, "unexpected SYS WRAP"); | |
5662 | ack |= TSINTR_SYS_WRAP; | |
5663 | } | |
61d7f75f RC |
5664 | |
5665 | if (tsicr & E1000_TSICR_TXTS) { | |
61d7f75f RC |
5666 | /* retrieve hardware timestamp */ |
5667 | schedule_work(&adapter->ptp_tx_work); | |
00c65578 | 5668 | ack |= E1000_TSICR_TXTS; |
61d7f75f | 5669 | } |
00c65578 | 5670 | |
720db4ff RC |
5671 | if (tsicr & TSINTR_TT0) { |
5672 | spin_lock(&adapter->tmreg_lock); | |
40c9b079 AB |
5673 | ts = timespec64_add(adapter->perout[0].start, |
5674 | adapter->perout[0].period); | |
5675 | /* u32 conversion of tv_sec is safe until y2106 */ | |
720db4ff | 5676 | wr32(E1000_TRGTTIML0, ts.tv_nsec); |
40c9b079 | 5677 | wr32(E1000_TRGTTIMH0, (u32)ts.tv_sec); |
720db4ff RC |
5678 | tsauxc = rd32(E1000_TSAUXC); |
5679 | tsauxc |= TSAUXC_EN_TT0; | |
5680 | wr32(E1000_TSAUXC, tsauxc); | |
5681 | adapter->perout[0].start = ts; | |
5682 | spin_unlock(&adapter->tmreg_lock); | |
5683 | ack |= TSINTR_TT0; | |
5684 | } | |
5685 | ||
5686 | if (tsicr & TSINTR_TT1) { | |
5687 | spin_lock(&adapter->tmreg_lock); | |
40c9b079 AB |
5688 | ts = timespec64_add(adapter->perout[1].start, |
5689 | adapter->perout[1].period); | |
720db4ff | 5690 | wr32(E1000_TRGTTIML1, ts.tv_nsec); |
40c9b079 | 5691 | wr32(E1000_TRGTTIMH1, (u32)ts.tv_sec); |
720db4ff RC |
5692 | tsauxc = rd32(E1000_TSAUXC); |
5693 | tsauxc |= TSAUXC_EN_TT1; | |
5694 | wr32(E1000_TSAUXC, tsauxc); | |
5695 | adapter->perout[1].start = ts; | |
5696 | spin_unlock(&adapter->tmreg_lock); | |
5697 | ack |= TSINTR_TT1; | |
5698 | } | |
5699 | ||
5700 | if (tsicr & TSINTR_AUTT0) { | |
5701 | nsec = rd32(E1000_AUXSTMPL0); | |
5702 | sec = rd32(E1000_AUXSTMPH0); | |
5703 | event.type = PTP_CLOCK_EXTTS; | |
5704 | event.index = 0; | |
5705 | event.timestamp = sec * 1000000000ULL + nsec; | |
5706 | ptp_clock_event(adapter->ptp_clock, &event); | |
5707 | ack |= TSINTR_AUTT0; | |
5708 | } | |
5709 | ||
5710 | if (tsicr & TSINTR_AUTT1) { | |
5711 | nsec = rd32(E1000_AUXSTMPL1); | |
5712 | sec = rd32(E1000_AUXSTMPH1); | |
5713 | event.type = PTP_CLOCK_EXTTS; | |
5714 | event.index = 1; | |
5715 | event.timestamp = sec * 1000000000ULL + nsec; | |
5716 | ptp_clock_event(adapter->ptp_clock, &event); | |
5717 | ack |= TSINTR_AUTT1; | |
5718 | } | |
5719 | ||
00c65578 RC |
5720 | /* acknowledge the interrupts */ |
5721 | wr32(E1000_TSICR, ack); | |
61d7f75f RC |
5722 | } |
5723 | ||
9d5c8243 AK |
5724 | static irqreturn_t igb_msix_other(int irq, void *data) |
5725 | { | |
047e0030 | 5726 | struct igb_adapter *adapter = data; |
9d5c8243 | 5727 | struct e1000_hw *hw = &adapter->hw; |
844290e5 | 5728 | u32 icr = rd32(E1000_ICR); |
844290e5 | 5729 | /* reading ICR causes bit 31 of EICR to be cleared */ |
dda0e083 | 5730 | |
7f081d40 AD |
5731 | if (icr & E1000_ICR_DRSTA) |
5732 | schedule_work(&adapter->reset_task); | |
5733 | ||
047e0030 | 5734 | if (icr & E1000_ICR_DOUTSYNC) { |
dda0e083 AD |
5735 | /* HW is reporting DMA is out of sync */ |
5736 | adapter->stats.doosync++; | |
13800469 GR |
5737 | /* The DMA Out of Sync is also indication of a spoof event |
5738 | * in IOV mode. Check the Wrong VM Behavior register to | |
b980ac18 JK |
5739 | * see if it is really a spoof event. |
5740 | */ | |
13800469 | 5741 | igb_check_wvbr(adapter); |
dda0e083 | 5742 | } |
eebbbdba | 5743 | |
4ae196df AD |
5744 | /* Check for a mailbox event */ |
5745 | if (icr & E1000_ICR_VMMB) | |
5746 | igb_msg_task(adapter); | |
5747 | ||
5748 | if (icr & E1000_ICR_LSC) { | |
5749 | hw->mac.get_link_status = 1; | |
5750 | /* guard against interrupt when we're going down */ | |
5751 | if (!test_bit(__IGB_DOWN, &adapter->state)) | |
5752 | mod_timer(&adapter->watchdog_timer, jiffies + 1); | |
5753 | } | |
5754 | ||
61d7f75f RC |
5755 | if (icr & E1000_ICR_TS) |
5756 | igb_tsync_interrupt(adapter); | |
1f6e8178 | 5757 | |
844290e5 | 5758 | wr32(E1000_EIMS, adapter->eims_other); |
9d5c8243 AK |
5759 | |
5760 | return IRQ_HANDLED; | |
5761 | } | |
5762 | ||
047e0030 | 5763 | static void igb_write_itr(struct igb_q_vector *q_vector) |
9d5c8243 | 5764 | { |
26b39276 | 5765 | struct igb_adapter *adapter = q_vector->adapter; |
047e0030 | 5766 | u32 itr_val = q_vector->itr_val & 0x7FFC; |
9d5c8243 | 5767 | |
047e0030 AD |
5768 | if (!q_vector->set_itr) |
5769 | return; | |
73cd78f1 | 5770 | |
047e0030 AD |
5771 | if (!itr_val) |
5772 | itr_val = 0x4; | |
661086df | 5773 | |
26b39276 AD |
5774 | if (adapter->hw.mac.type == e1000_82575) |
5775 | itr_val |= itr_val << 16; | |
661086df | 5776 | else |
0ba82994 | 5777 | itr_val |= E1000_EITR_CNT_IGNR; |
661086df | 5778 | |
047e0030 AD |
5779 | writel(itr_val, q_vector->itr_register); |
5780 | q_vector->set_itr = 0; | |
6eb5a7f1 AD |
5781 | } |
5782 | ||
047e0030 | 5783 | static irqreturn_t igb_msix_ring(int irq, void *data) |
9d5c8243 | 5784 | { |
047e0030 | 5785 | struct igb_q_vector *q_vector = data; |
9d5c8243 | 5786 | |
047e0030 AD |
5787 | /* Write the ITR value calculated from the previous interrupt. */ |
5788 | igb_write_itr(q_vector); | |
9d5c8243 | 5789 | |
047e0030 | 5790 | napi_schedule(&q_vector->napi); |
844290e5 | 5791 | |
047e0030 | 5792 | return IRQ_HANDLED; |
fe4506b6 JC |
5793 | } |
5794 | ||
421e02f0 | 5795 | #ifdef CONFIG_IGB_DCA |
6a05004a AD |
5796 | static void igb_update_tx_dca(struct igb_adapter *adapter, |
5797 | struct igb_ring *tx_ring, | |
5798 | int cpu) | |
5799 | { | |
5800 | struct e1000_hw *hw = &adapter->hw; | |
5801 | u32 txctrl = dca3_get_tag(tx_ring->dev, cpu); | |
5802 | ||
5803 | if (hw->mac.type != e1000_82575) | |
5804 | txctrl <<= E1000_DCA_TXCTRL_CPUID_SHIFT; | |
5805 | ||
b980ac18 | 5806 | /* We can enable relaxed ordering for reads, but not writes when |
6a05004a AD |
5807 | * DCA is enabled. This is due to a known issue in some chipsets |
5808 | * which will cause the DCA tag to be cleared. | |
5809 | */ | |
5810 | txctrl |= E1000_DCA_TXCTRL_DESC_RRO_EN | | |
5811 | E1000_DCA_TXCTRL_DATA_RRO_EN | | |
5812 | E1000_DCA_TXCTRL_DESC_DCA_EN; | |
5813 | ||
5814 | wr32(E1000_DCA_TXCTRL(tx_ring->reg_idx), txctrl); | |
5815 | } | |
5816 | ||
5817 | static void igb_update_rx_dca(struct igb_adapter *adapter, | |
5818 | struct igb_ring *rx_ring, | |
5819 | int cpu) | |
5820 | { | |
5821 | struct e1000_hw *hw = &adapter->hw; | |
5822 | u32 rxctrl = dca3_get_tag(&adapter->pdev->dev, cpu); | |
5823 | ||
5824 | if (hw->mac.type != e1000_82575) | |
5825 | rxctrl <<= E1000_DCA_RXCTRL_CPUID_SHIFT; | |
5826 | ||
b980ac18 | 5827 | /* We can enable relaxed ordering for reads, but not writes when |
6a05004a AD |
5828 | * DCA is enabled. This is due to a known issue in some chipsets |
5829 | * which will cause the DCA tag to be cleared. | |
5830 | */ | |
5831 | rxctrl |= E1000_DCA_RXCTRL_DESC_RRO_EN | | |
5832 | E1000_DCA_RXCTRL_DESC_DCA_EN; | |
5833 | ||
5834 | wr32(E1000_DCA_RXCTRL(rx_ring->reg_idx), rxctrl); | |
5835 | } | |
5836 | ||
047e0030 | 5837 | static void igb_update_dca(struct igb_q_vector *q_vector) |
fe4506b6 | 5838 | { |
047e0030 | 5839 | struct igb_adapter *adapter = q_vector->adapter; |
fe4506b6 | 5840 | int cpu = get_cpu(); |
fe4506b6 | 5841 | |
047e0030 AD |
5842 | if (q_vector->cpu == cpu) |
5843 | goto out_no_update; | |
5844 | ||
6a05004a AD |
5845 | if (q_vector->tx.ring) |
5846 | igb_update_tx_dca(adapter, q_vector->tx.ring, cpu); | |
5847 | ||
5848 | if (q_vector->rx.ring) | |
5849 | igb_update_rx_dca(adapter, q_vector->rx.ring, cpu); | |
5850 | ||
047e0030 AD |
5851 | q_vector->cpu = cpu; |
5852 | out_no_update: | |
fe4506b6 JC |
5853 | put_cpu(); |
5854 | } | |
5855 | ||
5856 | static void igb_setup_dca(struct igb_adapter *adapter) | |
5857 | { | |
7e0e99ef | 5858 | struct e1000_hw *hw = &adapter->hw; |
fe4506b6 JC |
5859 | int i; |
5860 | ||
7dfc16fa | 5861 | if (!(adapter->flags & IGB_FLAG_DCA_ENABLED)) |
fe4506b6 JC |
5862 | return; |
5863 | ||
7e0e99ef AD |
5864 | /* Always use CB2 mode, difference is masked in the CB driver. */ |
5865 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_CB2); | |
5866 | ||
047e0030 | 5867 | for (i = 0; i < adapter->num_q_vectors; i++) { |
26b39276 AD |
5868 | adapter->q_vector[i]->cpu = -1; |
5869 | igb_update_dca(adapter->q_vector[i]); | |
fe4506b6 JC |
5870 | } |
5871 | } | |
5872 | ||
5873 | static int __igb_notify_dca(struct device *dev, void *data) | |
5874 | { | |
5875 | struct net_device *netdev = dev_get_drvdata(dev); | |
5876 | struct igb_adapter *adapter = netdev_priv(netdev); | |
090b1795 | 5877 | struct pci_dev *pdev = adapter->pdev; |
fe4506b6 JC |
5878 | struct e1000_hw *hw = &adapter->hw; |
5879 | unsigned long event = *(unsigned long *)data; | |
5880 | ||
5881 | switch (event) { | |
5882 | case DCA_PROVIDER_ADD: | |
5883 | /* if already enabled, don't do it again */ | |
7dfc16fa | 5884 | if (adapter->flags & IGB_FLAG_DCA_ENABLED) |
fe4506b6 | 5885 | break; |
fe4506b6 | 5886 | if (dca_add_requester(dev) == 0) { |
bbd98fe4 | 5887 | adapter->flags |= IGB_FLAG_DCA_ENABLED; |
090b1795 | 5888 | dev_info(&pdev->dev, "DCA enabled\n"); |
fe4506b6 JC |
5889 | igb_setup_dca(adapter); |
5890 | break; | |
5891 | } | |
5892 | /* Fall Through since DCA is disabled. */ | |
5893 | case DCA_PROVIDER_REMOVE: | |
7dfc16fa | 5894 | if (adapter->flags & IGB_FLAG_DCA_ENABLED) { |
fe4506b6 | 5895 | /* without this a class_device is left |
b980ac18 JK |
5896 | * hanging around in the sysfs model |
5897 | */ | |
fe4506b6 | 5898 | dca_remove_requester(dev); |
090b1795 | 5899 | dev_info(&pdev->dev, "DCA disabled\n"); |
7dfc16fa | 5900 | adapter->flags &= ~IGB_FLAG_DCA_ENABLED; |
cbd347ad | 5901 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE); |
fe4506b6 JC |
5902 | } |
5903 | break; | |
5904 | } | |
bbd98fe4 | 5905 | |
fe4506b6 | 5906 | return 0; |
9d5c8243 AK |
5907 | } |
5908 | ||
fe4506b6 | 5909 | static int igb_notify_dca(struct notifier_block *nb, unsigned long event, |
b980ac18 | 5910 | void *p) |
fe4506b6 JC |
5911 | { |
5912 | int ret_val; | |
5913 | ||
5914 | ret_val = driver_for_each_device(&igb_driver.driver, NULL, &event, | |
b980ac18 | 5915 | __igb_notify_dca); |
fe4506b6 JC |
5916 | |
5917 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; | |
5918 | } | |
421e02f0 | 5919 | #endif /* CONFIG_IGB_DCA */ |
9d5c8243 | 5920 | |
0224d663 GR |
5921 | #ifdef CONFIG_PCI_IOV |
5922 | static int igb_vf_configure(struct igb_adapter *adapter, int vf) | |
5923 | { | |
5924 | unsigned char mac_addr[ETH_ALEN]; | |
0224d663 | 5925 | |
5ac6f91d | 5926 | eth_zero_addr(mac_addr); |
0224d663 GR |
5927 | igb_set_vf_mac(adapter, vf, mac_addr); |
5928 | ||
70ea4783 LL |
5929 | /* By default spoof check is enabled for all VFs */ |
5930 | adapter->vf_data[vf].spoofchk_enabled = true; | |
5931 | ||
f557147c | 5932 | return 0; |
0224d663 GR |
5933 | } |
5934 | ||
0224d663 | 5935 | #endif |
4ae196df AD |
5936 | static void igb_ping_all_vfs(struct igb_adapter *adapter) |
5937 | { | |
5938 | struct e1000_hw *hw = &adapter->hw; | |
5939 | u32 ping; | |
5940 | int i; | |
5941 | ||
5942 | for (i = 0 ; i < adapter->vfs_allocated_count; i++) { | |
5943 | ping = E1000_PF_CONTROL_MSG; | |
f2ca0dbe | 5944 | if (adapter->vf_data[i].flags & IGB_VF_FLAG_CTS) |
4ae196df AD |
5945 | ping |= E1000_VT_MSGTYPE_CTS; |
5946 | igb_write_mbx(hw, &ping, 1, i); | |
5947 | } | |
5948 | } | |
5949 | ||
7d5753f0 AD |
5950 | static int igb_set_vf_promisc(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) |
5951 | { | |
5952 | struct e1000_hw *hw = &adapter->hw; | |
5953 | u32 vmolr = rd32(E1000_VMOLR(vf)); | |
5954 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; | |
5955 | ||
d85b9004 | 5956 | vf_data->flags &= ~(IGB_VF_FLAG_UNI_PROMISC | |
b980ac18 | 5957 | IGB_VF_FLAG_MULTI_PROMISC); |
7d5753f0 AD |
5958 | vmolr &= ~(E1000_VMOLR_ROPE | E1000_VMOLR_ROMPE | E1000_VMOLR_MPME); |
5959 | ||
5960 | if (*msgbuf & E1000_VF_SET_PROMISC_MULTICAST) { | |
5961 | vmolr |= E1000_VMOLR_MPME; | |
d85b9004 | 5962 | vf_data->flags |= IGB_VF_FLAG_MULTI_PROMISC; |
7d5753f0 AD |
5963 | *msgbuf &= ~E1000_VF_SET_PROMISC_MULTICAST; |
5964 | } else { | |
b980ac18 | 5965 | /* if we have hashes and we are clearing a multicast promisc |
7d5753f0 AD |
5966 | * flag we need to write the hashes to the MTA as this step |
5967 | * was previously skipped | |
5968 | */ | |
5969 | if (vf_data->num_vf_mc_hashes > 30) { | |
5970 | vmolr |= E1000_VMOLR_MPME; | |
5971 | } else if (vf_data->num_vf_mc_hashes) { | |
5972 | int j; | |
9005df38 | 5973 | |
7d5753f0 AD |
5974 | vmolr |= E1000_VMOLR_ROMPE; |
5975 | for (j = 0; j < vf_data->num_vf_mc_hashes; j++) | |
5976 | igb_mta_set(hw, vf_data->vf_mc_hashes[j]); | |
5977 | } | |
5978 | } | |
5979 | ||
5980 | wr32(E1000_VMOLR(vf), vmolr); | |
5981 | ||
5982 | /* there are flags left unprocessed, likely not supported */ | |
5983 | if (*msgbuf & E1000_VT_MSGINFO_MASK) | |
5984 | return -EINVAL; | |
5985 | ||
5986 | return 0; | |
7d5753f0 AD |
5987 | } |
5988 | ||
4ae196df AD |
5989 | static int igb_set_vf_multicasts(struct igb_adapter *adapter, |
5990 | u32 *msgbuf, u32 vf) | |
5991 | { | |
5992 | int n = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT; | |
5993 | u16 *hash_list = (u16 *)&msgbuf[1]; | |
5994 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; | |
5995 | int i; | |
5996 | ||
7d5753f0 | 5997 | /* salt away the number of multicast addresses assigned |
4ae196df AD |
5998 | * to this VF for later use to restore when the PF multi cast |
5999 | * list changes | |
6000 | */ | |
6001 | vf_data->num_vf_mc_hashes = n; | |
6002 | ||
7d5753f0 AD |
6003 | /* only up to 30 hash values supported */ |
6004 | if (n > 30) | |
6005 | n = 30; | |
6006 | ||
6007 | /* store the hashes for later use */ | |
4ae196df | 6008 | for (i = 0; i < n; i++) |
a419aef8 | 6009 | vf_data->vf_mc_hashes[i] = hash_list[i]; |
4ae196df AD |
6010 | |
6011 | /* Flush and reset the mta with the new values */ | |
ff41f8dc | 6012 | igb_set_rx_mode(adapter->netdev); |
4ae196df AD |
6013 | |
6014 | return 0; | |
6015 | } | |
6016 | ||
6017 | static void igb_restore_vf_multicasts(struct igb_adapter *adapter) | |
6018 | { | |
6019 | struct e1000_hw *hw = &adapter->hw; | |
6020 | struct vf_data_storage *vf_data; | |
6021 | int i, j; | |
6022 | ||
6023 | for (i = 0; i < adapter->vfs_allocated_count; i++) { | |
7d5753f0 | 6024 | u32 vmolr = rd32(E1000_VMOLR(i)); |
9005df38 | 6025 | |
7d5753f0 AD |
6026 | vmolr &= ~(E1000_VMOLR_ROMPE | E1000_VMOLR_MPME); |
6027 | ||
4ae196df | 6028 | vf_data = &adapter->vf_data[i]; |
7d5753f0 AD |
6029 | |
6030 | if ((vf_data->num_vf_mc_hashes > 30) || | |
6031 | (vf_data->flags & IGB_VF_FLAG_MULTI_PROMISC)) { | |
6032 | vmolr |= E1000_VMOLR_MPME; | |
6033 | } else if (vf_data->num_vf_mc_hashes) { | |
6034 | vmolr |= E1000_VMOLR_ROMPE; | |
6035 | for (j = 0; j < vf_data->num_vf_mc_hashes; j++) | |
6036 | igb_mta_set(hw, vf_data->vf_mc_hashes[j]); | |
6037 | } | |
6038 | wr32(E1000_VMOLR(i), vmolr); | |
4ae196df AD |
6039 | } |
6040 | } | |
6041 | ||
6042 | static void igb_clear_vf_vfta(struct igb_adapter *adapter, u32 vf) | |
6043 | { | |
6044 | struct e1000_hw *hw = &adapter->hw; | |
16903caa | 6045 | u32 pool_mask, vlvf_mask, i; |
4ae196df | 6046 | |
16903caa AD |
6047 | /* create mask for VF and other pools */ |
6048 | pool_mask = E1000_VLVF_POOLSEL_MASK; | |
a51d8c21 | 6049 | vlvf_mask = BIT(E1000_VLVF_POOLSEL_SHIFT + vf); |
16903caa AD |
6050 | |
6051 | /* drop PF from pool bits */ | |
a51d8c21 JK |
6052 | pool_mask &= ~BIT(E1000_VLVF_POOLSEL_SHIFT + |
6053 | adapter->vfs_allocated_count); | |
4ae196df AD |
6054 | |
6055 | /* Find the vlan filter for this id */ | |
16903caa AD |
6056 | for (i = E1000_VLVF_ARRAY_SIZE; i--;) { |
6057 | u32 vlvf = rd32(E1000_VLVF(i)); | |
6058 | u32 vfta_mask, vid, vfta; | |
4ae196df AD |
6059 | |
6060 | /* remove the vf from the pool */ | |
16903caa AD |
6061 | if (!(vlvf & vlvf_mask)) |
6062 | continue; | |
6063 | ||
6064 | /* clear out bit from VLVF */ | |
6065 | vlvf ^= vlvf_mask; | |
6066 | ||
6067 | /* if other pools are present, just remove ourselves */ | |
6068 | if (vlvf & pool_mask) | |
6069 | goto update_vlvfb; | |
4ae196df | 6070 | |
16903caa AD |
6071 | /* if PF is present, leave VFTA */ |
6072 | if (vlvf & E1000_VLVF_POOLSEL_MASK) | |
6073 | goto update_vlvf; | |
4ae196df | 6074 | |
16903caa | 6075 | vid = vlvf & E1000_VLVF_VLANID_MASK; |
a51d8c21 | 6076 | vfta_mask = BIT(vid % 32); |
16903caa AD |
6077 | |
6078 | /* clear bit from VFTA */ | |
6079 | vfta = adapter->shadow_vfta[vid / 32]; | |
6080 | if (vfta & vfta_mask) | |
6081 | hw->mac.ops.write_vfta(hw, vid / 32, vfta ^ vfta_mask); | |
6082 | update_vlvf: | |
6083 | /* clear pool selection enable */ | |
6084 | if (adapter->flags & IGB_FLAG_VLAN_PROMISC) | |
6085 | vlvf &= E1000_VLVF_POOLSEL_MASK; | |
6086 | else | |
6087 | vlvf = 0; | |
6088 | update_vlvfb: | |
6089 | /* clear pool bits */ | |
6090 | wr32(E1000_VLVF(i), vlvf); | |
4ae196df AD |
6091 | } |
6092 | } | |
ae641bdc | 6093 | |
16903caa | 6094 | static int igb_find_vlvf_entry(struct e1000_hw *hw, u32 vlan) |
6f3dc319 | 6095 | { |
16903caa AD |
6096 | u32 vlvf; |
6097 | int idx; | |
6f3dc319 | 6098 | |
16903caa AD |
6099 | /* short cut the special case */ |
6100 | if (vlan == 0) | |
6101 | return 0; | |
6102 | ||
6103 | /* Search for the VLAN id in the VLVF entries */ | |
6104 | for (idx = E1000_VLVF_ARRAY_SIZE; --idx;) { | |
6105 | vlvf = rd32(E1000_VLVF(idx)); | |
6106 | if ((vlvf & VLAN_VID_MASK) == vlan) | |
6f3dc319 GR |
6107 | break; |
6108 | } | |
6109 | ||
16903caa | 6110 | return idx; |
4ae196df AD |
6111 | } |
6112 | ||
8008f68c | 6113 | static void igb_update_pf_vlvf(struct igb_adapter *adapter, u32 vid) |
4ae196df AD |
6114 | { |
6115 | struct e1000_hw *hw = &adapter->hw; | |
16903caa AD |
6116 | u32 bits, pf_id; |
6117 | int idx; | |
51466239 | 6118 | |
16903caa AD |
6119 | idx = igb_find_vlvf_entry(hw, vid); |
6120 | if (!idx) | |
6121 | return; | |
4ae196df | 6122 | |
16903caa AD |
6123 | /* See if any other pools are set for this VLAN filter |
6124 | * entry other than the PF. | |
6125 | */ | |
6126 | pf_id = adapter->vfs_allocated_count + E1000_VLVF_POOLSEL_SHIFT; | |
a51d8c21 | 6127 | bits = ~BIT(pf_id) & E1000_VLVF_POOLSEL_MASK; |
16903caa AD |
6128 | bits &= rd32(E1000_VLVF(idx)); |
6129 | ||
6130 | /* Disable the filter so this falls into the default pool. */ | |
6131 | if (!bits) { | |
6132 | if (adapter->flags & IGB_FLAG_VLAN_PROMISC) | |
a51d8c21 | 6133 | wr32(E1000_VLVF(idx), BIT(pf_id)); |
16903caa AD |
6134 | else |
6135 | wr32(E1000_VLVF(idx), 0); | |
4ae196df | 6136 | } |
6f3dc319 | 6137 | } |
4ae196df | 6138 | |
a15d9259 AD |
6139 | static s32 igb_set_vf_vlan(struct igb_adapter *adapter, u32 vid, |
6140 | bool add, u32 vf) | |
4ae196df | 6141 | { |
a15d9259 | 6142 | int pf_id = adapter->vfs_allocated_count; |
6f3dc319 | 6143 | struct e1000_hw *hw = &adapter->hw; |
a15d9259 | 6144 | int err; |
ae641bdc | 6145 | |
a15d9259 AD |
6146 | /* If VLAN overlaps with one the PF is currently monitoring make |
6147 | * sure that we are able to allocate a VLVF entry. This may be | |
6148 | * redundant but it guarantees PF will maintain visibility to | |
6149 | * the VLAN. | |
6f3dc319 | 6150 | */ |
16903caa | 6151 | if (add && test_bit(vid, adapter->active_vlans)) { |
a15d9259 AD |
6152 | err = igb_vfta_set(hw, vid, pf_id, true, false); |
6153 | if (err) | |
6154 | return err; | |
4ae196df | 6155 | } |
6f3dc319 | 6156 | |
a15d9259 | 6157 | err = igb_vfta_set(hw, vid, vf, add, false); |
6f3dc319 | 6158 | |
16903caa AD |
6159 | if (add && !err) |
6160 | return err; | |
6f3dc319 | 6161 | |
16903caa AD |
6162 | /* If we failed to add the VF VLAN or we are removing the VF VLAN |
6163 | * we may need to drop the PF pool bit in order to allow us to free | |
6164 | * up the VLVF resources. | |
6f3dc319 | 6165 | */ |
16903caa AD |
6166 | if (test_bit(vid, adapter->active_vlans) || |
6167 | (adapter->flags & IGB_FLAG_VLAN_PROMISC)) | |
6168 | igb_update_pf_vlvf(adapter, vid); | |
6f3dc319 | 6169 | |
6f3dc319 | 6170 | return err; |
8151d294 WM |
6171 | } |
6172 | ||
6173 | static void igb_set_vmvir(struct igb_adapter *adapter, u32 vid, u32 vf) | |
6174 | { | |
6175 | struct e1000_hw *hw = &adapter->hw; | |
6176 | ||
6177 | if (vid) | |
6178 | wr32(E1000_VMVIR(vf), (vid | E1000_VMVIR_VLANA_DEFAULT)); | |
6179 | else | |
6180 | wr32(E1000_VMVIR(vf), 0); | |
6181 | } | |
6182 | ||
a15d9259 AD |
6183 | static int igb_enable_port_vlan(struct igb_adapter *adapter, int vf, |
6184 | u16 vlan, u8 qos) | |
8151d294 | 6185 | { |
a15d9259 | 6186 | int err; |
8151d294 | 6187 | |
a15d9259 AD |
6188 | err = igb_set_vf_vlan(adapter, vlan, true, vf); |
6189 | if (err) | |
6190 | return err; | |
6191 | ||
6192 | igb_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), vf); | |
6193 | igb_set_vmolr(adapter, vf, !vlan); | |
6194 | ||
6195 | /* revoke access to previous VLAN */ | |
6196 | if (vlan != adapter->vf_data[vf].pf_vlan) | |
6197 | igb_set_vf_vlan(adapter, adapter->vf_data[vf].pf_vlan, | |
6198 | false, vf); | |
6199 | ||
6200 | adapter->vf_data[vf].pf_vlan = vlan; | |
6201 | adapter->vf_data[vf].pf_qos = qos; | |
030f9f52 | 6202 | igb_set_vf_vlan_strip(adapter, vf, true); |
a15d9259 AD |
6203 | dev_info(&adapter->pdev->dev, |
6204 | "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); | |
6205 | if (test_bit(__IGB_DOWN, &adapter->state)) { | |
6206 | dev_warn(&adapter->pdev->dev, | |
6207 | "The VF VLAN has been set, but the PF device is not up.\n"); | |
6208 | dev_warn(&adapter->pdev->dev, | |
6209 | "Bring the PF device up before attempting to use the VF device.\n"); | |
b980ac18 | 6210 | } |
a15d9259 | 6211 | |
b980ac18 | 6212 | return err; |
4ae196df AD |
6213 | } |
6214 | ||
a15d9259 | 6215 | static int igb_disable_port_vlan(struct igb_adapter *adapter, int vf) |
6f3dc319 | 6216 | { |
a15d9259 AD |
6217 | /* Restore tagless access via VLAN 0 */ |
6218 | igb_set_vf_vlan(adapter, 0, true, vf); | |
6f3dc319 | 6219 | |
a15d9259 | 6220 | igb_set_vmvir(adapter, 0, vf); |
8151d294 | 6221 | igb_set_vmolr(adapter, vf, true); |
4ae196df | 6222 | |
a15d9259 AD |
6223 | /* Remove any PF assigned VLAN */ |
6224 | if (adapter->vf_data[vf].pf_vlan) | |
6225 | igb_set_vf_vlan(adapter, adapter->vf_data[vf].pf_vlan, | |
6226 | false, vf); | |
6f3dc319 | 6227 | |
a15d9259 AD |
6228 | adapter->vf_data[vf].pf_vlan = 0; |
6229 | adapter->vf_data[vf].pf_qos = 0; | |
030f9f52 | 6230 | igb_set_vf_vlan_strip(adapter, vf, false); |
6f3dc319 | 6231 | |
a15d9259 | 6232 | return 0; |
6f3dc319 GR |
6233 | } |
6234 | ||
79aab093 MS |
6235 | static int igb_ndo_set_vf_vlan(struct net_device *netdev, int vf, |
6236 | u16 vlan, u8 qos, __be16 vlan_proto) | |
4ae196df | 6237 | { |
a15d9259 | 6238 | struct igb_adapter *adapter = netdev_priv(netdev); |
4ae196df | 6239 | |
a15d9259 AD |
6240 | if ((vf >= adapter->vfs_allocated_count) || (vlan > 4095) || (qos > 7)) |
6241 | return -EINVAL; | |
6f3dc319 | 6242 | |
79aab093 MS |
6243 | if (vlan_proto != htons(ETH_P_8021Q)) |
6244 | return -EPROTONOSUPPORT; | |
6245 | ||
a15d9259 AD |
6246 | return (vlan || qos) ? igb_enable_port_vlan(adapter, vf, vlan, qos) : |
6247 | igb_disable_port_vlan(adapter, vf); | |
6248 | } | |
6f3dc319 | 6249 | |
a15d9259 AD |
6250 | static int igb_set_vf_vlan_msg(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) |
6251 | { | |
6252 | int add = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT; | |
6253 | int vid = (msgbuf[1] & E1000_VLVF_VLANID_MASK); | |
030f9f52 | 6254 | int ret; |
6f3dc319 | 6255 | |
a15d9259 AD |
6256 | if (adapter->vf_data[vf].pf_vlan) |
6257 | return -1; | |
6f3dc319 | 6258 | |
a15d9259 AD |
6259 | /* VLAN 0 is a special case, don't allow it to be removed */ |
6260 | if (!vid && !add) | |
6261 | return 0; | |
6262 | ||
030f9f52 CV |
6263 | ret = igb_set_vf_vlan(adapter, vid, !!add, vf); |
6264 | if (!ret) | |
6265 | igb_set_vf_vlan_strip(adapter, vf, !!vid); | |
6266 | return ret; | |
4ae196df AD |
6267 | } |
6268 | ||
f2ca0dbe | 6269 | static inline void igb_vf_reset(struct igb_adapter *adapter, u32 vf) |
4ae196df | 6270 | { |
a15d9259 | 6271 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
4ae196df | 6272 | |
a15d9259 AD |
6273 | /* clear flags - except flag that indicates PF has set the MAC */ |
6274 | vf_data->flags &= IGB_VF_FLAG_PF_SET_MAC; | |
6275 | vf_data->last_nack = jiffies; | |
4ae196df AD |
6276 | |
6277 | /* reset vlans for device */ | |
6278 | igb_clear_vf_vfta(adapter, vf); | |
a15d9259 AD |
6279 | igb_set_vf_vlan(adapter, vf_data->pf_vlan, true, vf); |
6280 | igb_set_vmvir(adapter, vf_data->pf_vlan | | |
6281 | (vf_data->pf_qos << VLAN_PRIO_SHIFT), vf); | |
6282 | igb_set_vmolr(adapter, vf, !vf_data->pf_vlan); | |
030f9f52 | 6283 | igb_set_vf_vlan_strip(adapter, vf, !!(vf_data->pf_vlan)); |
4ae196df AD |
6284 | |
6285 | /* reset multicast table array for vf */ | |
6286 | adapter->vf_data[vf].num_vf_mc_hashes = 0; | |
6287 | ||
6288 | /* Flush and reset the mta with the new values */ | |
ff41f8dc | 6289 | igb_set_rx_mode(adapter->netdev); |
4ae196df AD |
6290 | } |
6291 | ||
f2ca0dbe AD |
6292 | static void igb_vf_reset_event(struct igb_adapter *adapter, u32 vf) |
6293 | { | |
6294 | unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses; | |
6295 | ||
5ac6f91d | 6296 | /* clear mac address as we were hotplug removed/added */ |
8151d294 | 6297 | if (!(adapter->vf_data[vf].flags & IGB_VF_FLAG_PF_SET_MAC)) |
5ac6f91d | 6298 | eth_zero_addr(vf_mac); |
f2ca0dbe AD |
6299 | |
6300 | /* process remaining reset events */ | |
6301 | igb_vf_reset(adapter, vf); | |
6302 | } | |
6303 | ||
6304 | static void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf) | |
4ae196df AD |
6305 | { |
6306 | struct e1000_hw *hw = &adapter->hw; | |
6307 | unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses; | |
ff41f8dc | 6308 | int rar_entry = hw->mac.rar_entry_count - (vf + 1); |
4ae196df AD |
6309 | u32 reg, msgbuf[3]; |
6310 | u8 *addr = (u8 *)(&msgbuf[1]); | |
6311 | ||
6312 | /* process all the same items cleared in a function level reset */ | |
f2ca0dbe | 6313 | igb_vf_reset(adapter, vf); |
4ae196df AD |
6314 | |
6315 | /* set vf mac address */ | |
26ad9178 | 6316 | igb_rar_set_qsel(adapter, vf_mac, rar_entry, vf); |
4ae196df AD |
6317 | |
6318 | /* enable transmit and receive for vf */ | |
6319 | reg = rd32(E1000_VFTE); | |
a51d8c21 | 6320 | wr32(E1000_VFTE, reg | BIT(vf)); |
4ae196df | 6321 | reg = rd32(E1000_VFRE); |
a51d8c21 | 6322 | wr32(E1000_VFRE, reg | BIT(vf)); |
4ae196df | 6323 | |
8fa7e0f7 | 6324 | adapter->vf_data[vf].flags |= IGB_VF_FLAG_CTS; |
4ae196df AD |
6325 | |
6326 | /* reply to reset with ack and vf mac address */ | |
6ddbc4cf AG |
6327 | if (!is_zero_ether_addr(vf_mac)) { |
6328 | msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_ACK; | |
6329 | memcpy(addr, vf_mac, ETH_ALEN); | |
6330 | } else { | |
6331 | msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_NACK; | |
6332 | } | |
4ae196df AD |
6333 | igb_write_mbx(hw, msgbuf, 3, vf); |
6334 | } | |
6335 | ||
6336 | static int igb_set_vf_mac_addr(struct igb_adapter *adapter, u32 *msg, int vf) | |
6337 | { | |
b980ac18 | 6338 | /* The VF MAC Address is stored in a packed array of bytes |
de42edde GR |
6339 | * starting at the second 32 bit word of the msg array |
6340 | */ | |
f2ca0dbe AD |
6341 | unsigned char *addr = (char *)&msg[1]; |
6342 | int err = -1; | |
4ae196df | 6343 | |
f2ca0dbe AD |
6344 | if (is_valid_ether_addr(addr)) |
6345 | err = igb_set_vf_mac(adapter, vf, addr); | |
4ae196df | 6346 | |
f2ca0dbe | 6347 | return err; |
4ae196df AD |
6348 | } |
6349 | ||
6350 | static void igb_rcv_ack_from_vf(struct igb_adapter *adapter, u32 vf) | |
6351 | { | |
6352 | struct e1000_hw *hw = &adapter->hw; | |
f2ca0dbe | 6353 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
4ae196df AD |
6354 | u32 msg = E1000_VT_MSGTYPE_NACK; |
6355 | ||
6356 | /* if device isn't clear to send it shouldn't be reading either */ | |
f2ca0dbe AD |
6357 | if (!(vf_data->flags & IGB_VF_FLAG_CTS) && |
6358 | time_after(jiffies, vf_data->last_nack + (2 * HZ))) { | |
4ae196df | 6359 | igb_write_mbx(hw, &msg, 1, vf); |
f2ca0dbe | 6360 | vf_data->last_nack = jiffies; |
4ae196df AD |
6361 | } |
6362 | } | |
6363 | ||
f2ca0dbe | 6364 | static void igb_rcv_msg_from_vf(struct igb_adapter *adapter, u32 vf) |
4ae196df | 6365 | { |
f2ca0dbe AD |
6366 | struct pci_dev *pdev = adapter->pdev; |
6367 | u32 msgbuf[E1000_VFMAILBOX_SIZE]; | |
4ae196df | 6368 | struct e1000_hw *hw = &adapter->hw; |
f2ca0dbe | 6369 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
4ae196df AD |
6370 | s32 retval; |
6371 | ||
f2ca0dbe | 6372 | retval = igb_read_mbx(hw, msgbuf, E1000_VFMAILBOX_SIZE, vf); |
4ae196df | 6373 | |
fef45f4c AD |
6374 | if (retval) { |
6375 | /* if receive failed revoke VF CTS stats and restart init */ | |
f2ca0dbe | 6376 | dev_err(&pdev->dev, "Error receiving message from VF\n"); |
fef45f4c AD |
6377 | vf_data->flags &= ~IGB_VF_FLAG_CTS; |
6378 | if (!time_after(jiffies, vf_data->last_nack + (2 * HZ))) | |
6379 | return; | |
6380 | goto out; | |
6381 | } | |
4ae196df AD |
6382 | |
6383 | /* this is a message we already processed, do nothing */ | |
6384 | if (msgbuf[0] & (E1000_VT_MSGTYPE_ACK | E1000_VT_MSGTYPE_NACK)) | |
f2ca0dbe | 6385 | return; |
4ae196df | 6386 | |
b980ac18 | 6387 | /* until the vf completes a reset it should not be |
4ae196df AD |
6388 | * allowed to start any configuration. |
6389 | */ | |
4ae196df AD |
6390 | if (msgbuf[0] == E1000_VF_RESET) { |
6391 | igb_vf_reset_msg(adapter, vf); | |
f2ca0dbe | 6392 | return; |
4ae196df AD |
6393 | } |
6394 | ||
f2ca0dbe | 6395 | if (!(vf_data->flags & IGB_VF_FLAG_CTS)) { |
fef45f4c AD |
6396 | if (!time_after(jiffies, vf_data->last_nack + (2 * HZ))) |
6397 | return; | |
6398 | retval = -1; | |
6399 | goto out; | |
4ae196df AD |
6400 | } |
6401 | ||
6402 | switch ((msgbuf[0] & 0xFFFF)) { | |
6403 | case E1000_VF_SET_MAC_ADDR: | |
a6b5ea35 GR |
6404 | retval = -EINVAL; |
6405 | if (!(vf_data->flags & IGB_VF_FLAG_PF_SET_MAC)) | |
6406 | retval = igb_set_vf_mac_addr(adapter, msgbuf, vf); | |
6407 | else | |
6408 | dev_warn(&pdev->dev, | |
b980ac18 JK |
6409 | "VF %d attempted to override administratively set MAC address\nReload the VF driver to resume operations\n", |
6410 | vf); | |
4ae196df | 6411 | break; |
7d5753f0 AD |
6412 | case E1000_VF_SET_PROMISC: |
6413 | retval = igb_set_vf_promisc(adapter, msgbuf, vf); | |
6414 | break; | |
4ae196df AD |
6415 | case E1000_VF_SET_MULTICAST: |
6416 | retval = igb_set_vf_multicasts(adapter, msgbuf, vf); | |
6417 | break; | |
6418 | case E1000_VF_SET_LPE: | |
6419 | retval = igb_set_vf_rlpml(adapter, msgbuf[1], vf); | |
6420 | break; | |
6421 | case E1000_VF_SET_VLAN: | |
a6b5ea35 GR |
6422 | retval = -1; |
6423 | if (vf_data->pf_vlan) | |
6424 | dev_warn(&pdev->dev, | |
b980ac18 JK |
6425 | "VF %d attempted to override administratively set VLAN tag\nReload the VF driver to resume operations\n", |
6426 | vf); | |
8151d294 | 6427 | else |
a15d9259 | 6428 | retval = igb_set_vf_vlan_msg(adapter, msgbuf, vf); |
4ae196df AD |
6429 | break; |
6430 | default: | |
090b1795 | 6431 | dev_err(&pdev->dev, "Unhandled Msg %08x\n", msgbuf[0]); |
4ae196df AD |
6432 | retval = -1; |
6433 | break; | |
6434 | } | |
6435 | ||
fef45f4c AD |
6436 | msgbuf[0] |= E1000_VT_MSGTYPE_CTS; |
6437 | out: | |
4ae196df AD |
6438 | /* notify the VF of the results of what it sent us */ |
6439 | if (retval) | |
6440 | msgbuf[0] |= E1000_VT_MSGTYPE_NACK; | |
6441 | else | |
6442 | msgbuf[0] |= E1000_VT_MSGTYPE_ACK; | |
6443 | ||
4ae196df | 6444 | igb_write_mbx(hw, msgbuf, 1, vf); |
f2ca0dbe | 6445 | } |
4ae196df | 6446 | |
f2ca0dbe AD |
6447 | static void igb_msg_task(struct igb_adapter *adapter) |
6448 | { | |
6449 | struct e1000_hw *hw = &adapter->hw; | |
6450 | u32 vf; | |
6451 | ||
6452 | for (vf = 0; vf < adapter->vfs_allocated_count; vf++) { | |
6453 | /* process any reset requests */ | |
6454 | if (!igb_check_for_rst(hw, vf)) | |
6455 | igb_vf_reset_event(adapter, vf); | |
6456 | ||
6457 | /* process any messages pending */ | |
6458 | if (!igb_check_for_msg(hw, vf)) | |
6459 | igb_rcv_msg_from_vf(adapter, vf); | |
6460 | ||
6461 | /* process any acks */ | |
6462 | if (!igb_check_for_ack(hw, vf)) | |
6463 | igb_rcv_ack_from_vf(adapter, vf); | |
6464 | } | |
4ae196df AD |
6465 | } |
6466 | ||
68d480c4 AD |
6467 | /** |
6468 | * igb_set_uta - Set unicast filter table address | |
6469 | * @adapter: board private structure | |
bf456abb | 6470 | * @set: boolean indicating if we are setting or clearing bits |
68d480c4 AD |
6471 | * |
6472 | * The unicast table address is a register array of 32-bit registers. | |
6473 | * The table is meant to be used in a way similar to how the MTA is used | |
6474 | * however due to certain limitations in the hardware it is necessary to | |
25985edc LDM |
6475 | * set all the hash bits to 1 and use the VMOLR ROPE bit as a promiscuous |
6476 | * enable bit to allow vlan tag stripping when promiscuous mode is enabled | |
68d480c4 | 6477 | **/ |
bf456abb | 6478 | static void igb_set_uta(struct igb_adapter *adapter, bool set) |
68d480c4 AD |
6479 | { |
6480 | struct e1000_hw *hw = &adapter->hw; | |
bf456abb | 6481 | u32 uta = set ? ~0 : 0; |
68d480c4 AD |
6482 | int i; |
6483 | ||
68d480c4 AD |
6484 | /* we only need to do this if VMDq is enabled */ |
6485 | if (!adapter->vfs_allocated_count) | |
6486 | return; | |
6487 | ||
bf456abb AD |
6488 | for (i = hw->mac.uta_reg_count; i--;) |
6489 | array_wr32(E1000_UTA, i, uta); | |
68d480c4 AD |
6490 | } |
6491 | ||
9d5c8243 | 6492 | /** |
b980ac18 JK |
6493 | * igb_intr_msi - Interrupt Handler |
6494 | * @irq: interrupt number | |
6495 | * @data: pointer to a network interface device structure | |
9d5c8243 AK |
6496 | **/ |
6497 | static irqreturn_t igb_intr_msi(int irq, void *data) | |
6498 | { | |
047e0030 AD |
6499 | struct igb_adapter *adapter = data; |
6500 | struct igb_q_vector *q_vector = adapter->q_vector[0]; | |
9d5c8243 AK |
6501 | struct e1000_hw *hw = &adapter->hw; |
6502 | /* read ICR disables interrupts using IAM */ | |
6503 | u32 icr = rd32(E1000_ICR); | |
6504 | ||
047e0030 | 6505 | igb_write_itr(q_vector); |
9d5c8243 | 6506 | |
7f081d40 AD |
6507 | if (icr & E1000_ICR_DRSTA) |
6508 | schedule_work(&adapter->reset_task); | |
6509 | ||
047e0030 | 6510 | if (icr & E1000_ICR_DOUTSYNC) { |
dda0e083 AD |
6511 | /* HW is reporting DMA is out of sync */ |
6512 | adapter->stats.doosync++; | |
6513 | } | |
6514 | ||
9d5c8243 AK |
6515 | if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { |
6516 | hw->mac.get_link_status = 1; | |
6517 | if (!test_bit(__IGB_DOWN, &adapter->state)) | |
6518 | mod_timer(&adapter->watchdog_timer, jiffies + 1); | |
6519 | } | |
6520 | ||
61d7f75f RC |
6521 | if (icr & E1000_ICR_TS) |
6522 | igb_tsync_interrupt(adapter); | |
1f6e8178 | 6523 | |
047e0030 | 6524 | napi_schedule(&q_vector->napi); |
9d5c8243 AK |
6525 | |
6526 | return IRQ_HANDLED; | |
6527 | } | |
6528 | ||
6529 | /** | |
b980ac18 JK |
6530 | * igb_intr - Legacy Interrupt Handler |
6531 | * @irq: interrupt number | |
6532 | * @data: pointer to a network interface device structure | |
9d5c8243 AK |
6533 | **/ |
6534 | static irqreturn_t igb_intr(int irq, void *data) | |
6535 | { | |
047e0030 AD |
6536 | struct igb_adapter *adapter = data; |
6537 | struct igb_q_vector *q_vector = adapter->q_vector[0]; | |
9d5c8243 AK |
6538 | struct e1000_hw *hw = &adapter->hw; |
6539 | /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No | |
b980ac18 JK |
6540 | * need for the IMC write |
6541 | */ | |
9d5c8243 | 6542 | u32 icr = rd32(E1000_ICR); |
9d5c8243 AK |
6543 | |
6544 | /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is | |
b980ac18 JK |
6545 | * not set, then the adapter didn't send an interrupt |
6546 | */ | |
9d5c8243 AK |
6547 | if (!(icr & E1000_ICR_INT_ASSERTED)) |
6548 | return IRQ_NONE; | |
6549 | ||
0ba82994 AD |
6550 | igb_write_itr(q_vector); |
6551 | ||
7f081d40 AD |
6552 | if (icr & E1000_ICR_DRSTA) |
6553 | schedule_work(&adapter->reset_task); | |
6554 | ||
047e0030 | 6555 | if (icr & E1000_ICR_DOUTSYNC) { |
dda0e083 AD |
6556 | /* HW is reporting DMA is out of sync */ |
6557 | adapter->stats.doosync++; | |
6558 | } | |
6559 | ||
9d5c8243 AK |
6560 | if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { |
6561 | hw->mac.get_link_status = 1; | |
6562 | /* guard against interrupt when we're going down */ | |
6563 | if (!test_bit(__IGB_DOWN, &adapter->state)) | |
6564 | mod_timer(&adapter->watchdog_timer, jiffies + 1); | |
6565 | } | |
6566 | ||
61d7f75f RC |
6567 | if (icr & E1000_ICR_TS) |
6568 | igb_tsync_interrupt(adapter); | |
1f6e8178 | 6569 | |
047e0030 | 6570 | napi_schedule(&q_vector->napi); |
9d5c8243 AK |
6571 | |
6572 | return IRQ_HANDLED; | |
6573 | } | |
6574 | ||
c50b52a0 | 6575 | static void igb_ring_irq_enable(struct igb_q_vector *q_vector) |
9d5c8243 | 6576 | { |
047e0030 | 6577 | struct igb_adapter *adapter = q_vector->adapter; |
46544258 | 6578 | struct e1000_hw *hw = &adapter->hw; |
9d5c8243 | 6579 | |
0ba82994 AD |
6580 | if ((q_vector->rx.ring && (adapter->rx_itr_setting & 3)) || |
6581 | (!q_vector->rx.ring && (adapter->tx_itr_setting & 3))) { | |
6582 | if ((adapter->num_q_vectors == 1) && !adapter->vf_data) | |
6583 | igb_set_itr(q_vector); | |
46544258 | 6584 | else |
047e0030 | 6585 | igb_update_ring_itr(q_vector); |
9d5c8243 AK |
6586 | } |
6587 | ||
46544258 | 6588 | if (!test_bit(__IGB_DOWN, &adapter->state)) { |
cd14ef54 | 6589 | if (adapter->flags & IGB_FLAG_HAS_MSIX) |
047e0030 | 6590 | wr32(E1000_EIMS, q_vector->eims_value); |
46544258 AD |
6591 | else |
6592 | igb_irq_enable(adapter); | |
6593 | } | |
9d5c8243 AK |
6594 | } |
6595 | ||
46544258 | 6596 | /** |
b980ac18 JK |
6597 | * igb_poll - NAPI Rx polling callback |
6598 | * @napi: napi polling structure | |
6599 | * @budget: count of how many packets we should handle | |
46544258 AD |
6600 | **/ |
6601 | static int igb_poll(struct napi_struct *napi, int budget) | |
9d5c8243 | 6602 | { |
047e0030 | 6603 | struct igb_q_vector *q_vector = container_of(napi, |
b980ac18 JK |
6604 | struct igb_q_vector, |
6605 | napi); | |
16eb8815 | 6606 | bool clean_complete = true; |
32b3e08f | 6607 | int work_done = 0; |
9d5c8243 | 6608 | |
421e02f0 | 6609 | #ifdef CONFIG_IGB_DCA |
047e0030 AD |
6610 | if (q_vector->adapter->flags & IGB_FLAG_DCA_ENABLED) |
6611 | igb_update_dca(q_vector); | |
fe4506b6 | 6612 | #endif |
0ba82994 | 6613 | if (q_vector->tx.ring) |
7f0ba845 | 6614 | clean_complete = igb_clean_tx_irq(q_vector, budget); |
9d5c8243 | 6615 | |
32b3e08f JB |
6616 | if (q_vector->rx.ring) { |
6617 | int cleaned = igb_clean_rx_irq(q_vector, budget); | |
6618 | ||
6619 | work_done += cleaned; | |
7f0ba845 AD |
6620 | if (cleaned >= budget) |
6621 | clean_complete = false; | |
32b3e08f | 6622 | } |
047e0030 | 6623 | |
16eb8815 AD |
6624 | /* If all work not completed, return budget and keep polling */ |
6625 | if (!clean_complete) | |
6626 | return budget; | |
46544258 | 6627 | |
9d5c8243 | 6628 | /* If not enough Rx work done, exit the polling mode */ |
32b3e08f | 6629 | napi_complete_done(napi, work_done); |
16eb8815 | 6630 | igb_ring_irq_enable(q_vector); |
9d5c8243 | 6631 | |
16eb8815 | 6632 | return 0; |
9d5c8243 | 6633 | } |
6d8126f9 | 6634 | |
9d5c8243 | 6635 | /** |
b980ac18 JK |
6636 | * igb_clean_tx_irq - Reclaim resources after transmit completes |
6637 | * @q_vector: pointer to q_vector containing needed info | |
7f0ba845 | 6638 | * @napi_budget: Used to determine if we are in netpoll |
49ce9c2c | 6639 | * |
b980ac18 | 6640 | * returns true if ring is completely cleaned |
9d5c8243 | 6641 | **/ |
7f0ba845 | 6642 | static bool igb_clean_tx_irq(struct igb_q_vector *q_vector, int napi_budget) |
9d5c8243 | 6643 | { |
047e0030 | 6644 | struct igb_adapter *adapter = q_vector->adapter; |
0ba82994 | 6645 | struct igb_ring *tx_ring = q_vector->tx.ring; |
06034649 | 6646 | struct igb_tx_buffer *tx_buffer; |
f4128785 | 6647 | union e1000_adv_tx_desc *tx_desc; |
9d5c8243 | 6648 | unsigned int total_bytes = 0, total_packets = 0; |
0ba82994 | 6649 | unsigned int budget = q_vector->tx.work_limit; |
8542db05 | 6650 | unsigned int i = tx_ring->next_to_clean; |
9d5c8243 | 6651 | |
13fde97a AD |
6652 | if (test_bit(__IGB_DOWN, &adapter->state)) |
6653 | return true; | |
0e014cb1 | 6654 | |
06034649 | 6655 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
13fde97a | 6656 | tx_desc = IGB_TX_DESC(tx_ring, i); |
8542db05 | 6657 | i -= tx_ring->count; |
9d5c8243 | 6658 | |
f4128785 AD |
6659 | do { |
6660 | union e1000_adv_tx_desc *eop_desc = tx_buffer->next_to_watch; | |
8542db05 AD |
6661 | |
6662 | /* if next_to_watch is not set then there is no work pending */ | |
6663 | if (!eop_desc) | |
6664 | break; | |
13fde97a | 6665 | |
f4128785 | 6666 | /* prevent any other reads prior to eop_desc */ |
70d289bc | 6667 | read_barrier_depends(); |
f4128785 | 6668 | |
13fde97a AD |
6669 | /* if DD is not set pending work has not been completed */ |
6670 | if (!(eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD))) | |
6671 | break; | |
6672 | ||
8542db05 AD |
6673 | /* clear next_to_watch to prevent false hangs */ |
6674 | tx_buffer->next_to_watch = NULL; | |
9d5c8243 | 6675 | |
ebe42d16 AD |
6676 | /* update the statistics for this packet */ |
6677 | total_bytes += tx_buffer->bytecount; | |
6678 | total_packets += tx_buffer->gso_segs; | |
13fde97a | 6679 | |
ebe42d16 | 6680 | /* free the skb */ |
7f0ba845 | 6681 | napi_consume_skb(tx_buffer->skb, napi_budget); |
13fde97a | 6682 | |
ebe42d16 AD |
6683 | /* unmap skb header data */ |
6684 | dma_unmap_single(tx_ring->dev, | |
c9f14bf3 AD |
6685 | dma_unmap_addr(tx_buffer, dma), |
6686 | dma_unmap_len(tx_buffer, len), | |
ebe42d16 AD |
6687 | DMA_TO_DEVICE); |
6688 | ||
c9f14bf3 AD |
6689 | /* clear tx_buffer data */ |
6690 | tx_buffer->skb = NULL; | |
6691 | dma_unmap_len_set(tx_buffer, len, 0); | |
6692 | ||
ebe42d16 AD |
6693 | /* clear last DMA location and unmap remaining buffers */ |
6694 | while (tx_desc != eop_desc) { | |
13fde97a AD |
6695 | tx_buffer++; |
6696 | tx_desc++; | |
9d5c8243 | 6697 | i++; |
8542db05 AD |
6698 | if (unlikely(!i)) { |
6699 | i -= tx_ring->count; | |
06034649 | 6700 | tx_buffer = tx_ring->tx_buffer_info; |
13fde97a AD |
6701 | tx_desc = IGB_TX_DESC(tx_ring, 0); |
6702 | } | |
ebe42d16 AD |
6703 | |
6704 | /* unmap any remaining paged data */ | |
c9f14bf3 | 6705 | if (dma_unmap_len(tx_buffer, len)) { |
ebe42d16 | 6706 | dma_unmap_page(tx_ring->dev, |
c9f14bf3 AD |
6707 | dma_unmap_addr(tx_buffer, dma), |
6708 | dma_unmap_len(tx_buffer, len), | |
ebe42d16 | 6709 | DMA_TO_DEVICE); |
c9f14bf3 | 6710 | dma_unmap_len_set(tx_buffer, len, 0); |
ebe42d16 AD |
6711 | } |
6712 | } | |
6713 | ||
ebe42d16 AD |
6714 | /* move us one more past the eop_desc for start of next pkt */ |
6715 | tx_buffer++; | |
6716 | tx_desc++; | |
6717 | i++; | |
6718 | if (unlikely(!i)) { | |
6719 | i -= tx_ring->count; | |
6720 | tx_buffer = tx_ring->tx_buffer_info; | |
6721 | tx_desc = IGB_TX_DESC(tx_ring, 0); | |
6722 | } | |
f4128785 AD |
6723 | |
6724 | /* issue prefetch for next Tx descriptor */ | |
6725 | prefetch(tx_desc); | |
6726 | ||
6727 | /* update budget accounting */ | |
6728 | budget--; | |
6729 | } while (likely(budget)); | |
0e014cb1 | 6730 | |
bdbc0631 ED |
6731 | netdev_tx_completed_queue(txring_txq(tx_ring), |
6732 | total_packets, total_bytes); | |
8542db05 | 6733 | i += tx_ring->count; |
9d5c8243 | 6734 | tx_ring->next_to_clean = i; |
13fde97a AD |
6735 | u64_stats_update_begin(&tx_ring->tx_syncp); |
6736 | tx_ring->tx_stats.bytes += total_bytes; | |
6737 | tx_ring->tx_stats.packets += total_packets; | |
6738 | u64_stats_update_end(&tx_ring->tx_syncp); | |
0ba82994 AD |
6739 | q_vector->tx.total_bytes += total_bytes; |
6740 | q_vector->tx.total_packets += total_packets; | |
9d5c8243 | 6741 | |
6d095fa8 | 6742 | if (test_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags)) { |
13fde97a | 6743 | struct e1000_hw *hw = &adapter->hw; |
12dcd86b | 6744 | |
9d5c8243 | 6745 | /* Detect a transmit hang in hardware, this serializes the |
b980ac18 JK |
6746 | * check with the clearing of time_stamp and movement of i |
6747 | */ | |
6d095fa8 | 6748 | clear_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags); |
f4128785 | 6749 | if (tx_buffer->next_to_watch && |
8542db05 | 6750 | time_after(jiffies, tx_buffer->time_stamp + |
8e95a202 JP |
6751 | (adapter->tx_timeout_factor * HZ)) && |
6752 | !(rd32(E1000_STATUS) & E1000_STATUS_TXOFF)) { | |
9d5c8243 | 6753 | |
9d5c8243 | 6754 | /* detected Tx unit hang */ |
59d71989 | 6755 | dev_err(tx_ring->dev, |
9d5c8243 | 6756 | "Detected Tx Unit Hang\n" |
2d064c06 | 6757 | " Tx Queue <%d>\n" |
9d5c8243 AK |
6758 | " TDH <%x>\n" |
6759 | " TDT <%x>\n" | |
6760 | " next_to_use <%x>\n" | |
6761 | " next_to_clean <%x>\n" | |
9d5c8243 AK |
6762 | "buffer_info[next_to_clean]\n" |
6763 | " time_stamp <%lx>\n" | |
8542db05 | 6764 | " next_to_watch <%p>\n" |
9d5c8243 AK |
6765 | " jiffies <%lx>\n" |
6766 | " desc.status <%x>\n", | |
2d064c06 | 6767 | tx_ring->queue_index, |
238ac817 | 6768 | rd32(E1000_TDH(tx_ring->reg_idx)), |
fce99e34 | 6769 | readl(tx_ring->tail), |
9d5c8243 AK |
6770 | tx_ring->next_to_use, |
6771 | tx_ring->next_to_clean, | |
8542db05 | 6772 | tx_buffer->time_stamp, |
f4128785 | 6773 | tx_buffer->next_to_watch, |
9d5c8243 | 6774 | jiffies, |
f4128785 | 6775 | tx_buffer->next_to_watch->wb.status); |
13fde97a AD |
6776 | netif_stop_subqueue(tx_ring->netdev, |
6777 | tx_ring->queue_index); | |
6778 | ||
6779 | /* we are about to reset, no point in enabling stuff */ | |
6780 | return true; | |
9d5c8243 AK |
6781 | } |
6782 | } | |
13fde97a | 6783 | |
21ba6fe1 | 6784 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
13fde97a | 6785 | if (unlikely(total_packets && |
b980ac18 JK |
6786 | netif_carrier_ok(tx_ring->netdev) && |
6787 | igb_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD)) { | |
13fde97a AD |
6788 | /* Make sure that anybody stopping the queue after this |
6789 | * sees the new next_to_clean. | |
6790 | */ | |
6791 | smp_mb(); | |
6792 | if (__netif_subqueue_stopped(tx_ring->netdev, | |
6793 | tx_ring->queue_index) && | |
6794 | !(test_bit(__IGB_DOWN, &adapter->state))) { | |
6795 | netif_wake_subqueue(tx_ring->netdev, | |
6796 | tx_ring->queue_index); | |
6797 | ||
6798 | u64_stats_update_begin(&tx_ring->tx_syncp); | |
6799 | tx_ring->tx_stats.restart_queue++; | |
6800 | u64_stats_update_end(&tx_ring->tx_syncp); | |
6801 | } | |
6802 | } | |
6803 | ||
6804 | return !!budget; | |
9d5c8243 AK |
6805 | } |
6806 | ||
cbc8e55f | 6807 | /** |
b980ac18 JK |
6808 | * igb_reuse_rx_page - page flip buffer and store it back on the ring |
6809 | * @rx_ring: rx descriptor ring to store buffers on | |
6810 | * @old_buff: donor buffer to have page reused | |
cbc8e55f | 6811 | * |
b980ac18 | 6812 | * Synchronizes page for reuse by the adapter |
cbc8e55f AD |
6813 | **/ |
6814 | static void igb_reuse_rx_page(struct igb_ring *rx_ring, | |
6815 | struct igb_rx_buffer *old_buff) | |
6816 | { | |
6817 | struct igb_rx_buffer *new_buff; | |
6818 | u16 nta = rx_ring->next_to_alloc; | |
6819 | ||
6820 | new_buff = &rx_ring->rx_buffer_info[nta]; | |
6821 | ||
6822 | /* update, and store next to alloc */ | |
6823 | nta++; | |
6824 | rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0; | |
6825 | ||
6826 | /* transfer page from old buffer to new buffer */ | |
a1f63473 | 6827 | *new_buff = *old_buff; |
cbc8e55f AD |
6828 | } |
6829 | ||
95dd44b4 AD |
6830 | static inline bool igb_page_is_reserved(struct page *page) |
6831 | { | |
2f064f34 | 6832 | return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); |
95dd44b4 AD |
6833 | } |
6834 | ||
74e238ea AD |
6835 | static bool igb_can_reuse_rx_page(struct igb_rx_buffer *rx_buffer, |
6836 | struct page *page, | |
6837 | unsigned int truesize) | |
6838 | { | |
bd4171a5 AD |
6839 | unsigned int pagecnt_bias = rx_buffer->pagecnt_bias--; |
6840 | ||
74e238ea | 6841 | /* avoid re-using remote pages */ |
95dd44b4 | 6842 | if (unlikely(igb_page_is_reserved(page))) |
bc16e47f RG |
6843 | return false; |
6844 | ||
74e238ea AD |
6845 | #if (PAGE_SIZE < 8192) |
6846 | /* if we are only owner of page we can reuse it */ | |
bd4171a5 | 6847 | if (unlikely(page_ref_count(page) != pagecnt_bias)) |
74e238ea AD |
6848 | return false; |
6849 | ||
6850 | /* flip page offset to other buffer */ | |
6851 | rx_buffer->page_offset ^= IGB_RX_BUFSZ; | |
74e238ea AD |
6852 | #else |
6853 | /* move offset up to the next cache line */ | |
6854 | rx_buffer->page_offset += truesize; | |
6855 | ||
6856 | if (rx_buffer->page_offset > (PAGE_SIZE - IGB_RX_BUFSZ)) | |
6857 | return false; | |
74e238ea AD |
6858 | #endif |
6859 | ||
bd4171a5 AD |
6860 | /* If we have drained the page fragment pool we need to update |
6861 | * the pagecnt_bias and page count so that we fully restock the | |
6862 | * number of references the driver holds. | |
95dd44b4 | 6863 | */ |
bd4171a5 AD |
6864 | if (unlikely(pagecnt_bias == 1)) { |
6865 | page_ref_add(page, USHRT_MAX); | |
6866 | rx_buffer->pagecnt_bias = USHRT_MAX; | |
6867 | } | |
95dd44b4 | 6868 | |
74e238ea AD |
6869 | return true; |
6870 | } | |
6871 | ||
cbc8e55f | 6872 | /** |
b980ac18 JK |
6873 | * igb_add_rx_frag - Add contents of Rx buffer to sk_buff |
6874 | * @rx_ring: rx descriptor ring to transact packets on | |
6875 | * @rx_buffer: buffer containing page to add | |
6876 | * @rx_desc: descriptor containing length of buffer written by hardware | |
6877 | * @skb: sk_buff to place the data into | |
cbc8e55f | 6878 | * |
b980ac18 JK |
6879 | * This function will add the data contained in rx_buffer->page to the skb. |
6880 | * This is done either through a direct copy if the data in the buffer is | |
6881 | * less than the skb header size, otherwise it will just attach the page as | |
6882 | * a frag to the skb. | |
cbc8e55f | 6883 | * |
b980ac18 JK |
6884 | * The function will then update the page offset if necessary and return |
6885 | * true if the buffer can be reused by the adapter. | |
cbc8e55f AD |
6886 | **/ |
6887 | static bool igb_add_rx_frag(struct igb_ring *rx_ring, | |
6888 | struct igb_rx_buffer *rx_buffer, | |
64f2525c | 6889 | unsigned int size, |
cbc8e55f AD |
6890 | union e1000_adv_rx_desc *rx_desc, |
6891 | struct sk_buff *skb) | |
6892 | { | |
6893 | struct page *page = rx_buffer->page; | |
f56e7bba | 6894 | unsigned char *va = page_address(page) + rx_buffer->page_offset; |
74e238ea AD |
6895 | #if (PAGE_SIZE < 8192) |
6896 | unsigned int truesize = IGB_RX_BUFSZ; | |
6897 | #else | |
f56e7bba | 6898 | unsigned int truesize = SKB_DATA_ALIGN(size); |
74e238ea | 6899 | #endif |
f56e7bba | 6900 | unsigned int pull_len; |
cbc8e55f | 6901 | |
f56e7bba AD |
6902 | if (unlikely(skb_is_nonlinear(skb))) |
6903 | goto add_tail_frag; | |
cbc8e55f | 6904 | |
f56e7bba AD |
6905 | if (unlikely(igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP))) { |
6906 | igb_ptp_rx_pktstamp(rx_ring->q_vector, va, skb); | |
6907 | va += IGB_TS_HDR_LEN; | |
6908 | size -= IGB_TS_HDR_LEN; | |
6909 | } | |
cbc8e55f | 6910 | |
f56e7bba | 6911 | if (likely(size <= IGB_RX_HDR_LEN)) { |
cbc8e55f AD |
6912 | memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long))); |
6913 | ||
95dd44b4 AD |
6914 | /* page is not reserved, we can reuse buffer as-is */ |
6915 | if (likely(!igb_page_is_reserved(page))) | |
cbc8e55f AD |
6916 | return true; |
6917 | ||
6918 | /* this page cannot be reused so discard it */ | |
cbc8e55f AD |
6919 | return false; |
6920 | } | |
6921 | ||
f56e7bba AD |
6922 | /* we need the header to contain the greater of either ETH_HLEN or |
6923 | * 60 bytes if the skb->len is less than 60 for skb_pad. | |
6924 | */ | |
6925 | pull_len = eth_get_headlen(va, IGB_RX_HDR_LEN); | |
6926 | ||
6927 | /* align pull length to size of long to optimize memcpy performance */ | |
6928 | memcpy(__skb_put(skb, pull_len), va, ALIGN(pull_len, sizeof(long))); | |
6929 | ||
6930 | /* update all of the pointers */ | |
6931 | va += pull_len; | |
6932 | size -= pull_len; | |
6933 | ||
6934 | add_tail_frag: | |
cbc8e55f | 6935 | skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, |
f56e7bba | 6936 | (unsigned long)va & ~PAGE_MASK, size, truesize); |
cbc8e55f | 6937 | |
74e238ea AD |
6938 | return igb_can_reuse_rx_page(rx_buffer, page, truesize); |
6939 | } | |
cbc8e55f | 6940 | |
2e334eee AD |
6941 | static struct sk_buff *igb_fetch_rx_buffer(struct igb_ring *rx_ring, |
6942 | union e1000_adv_rx_desc *rx_desc, | |
6943 | struct sk_buff *skb) | |
6944 | { | |
64f2525c | 6945 | unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); |
2e334eee AD |
6946 | struct igb_rx_buffer *rx_buffer; |
6947 | struct page *page; | |
6948 | ||
6949 | rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; | |
2e334eee AD |
6950 | page = rx_buffer->page; |
6951 | prefetchw(page); | |
6952 | ||
5be59554 AD |
6953 | /* we are reusing so sync this buffer for CPU use */ |
6954 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
6955 | rx_buffer->dma, | |
6956 | rx_buffer->page_offset, | |
6957 | size, | |
6958 | DMA_FROM_DEVICE); | |
6959 | ||
2e334eee AD |
6960 | if (likely(!skb)) { |
6961 | void *page_addr = page_address(page) + | |
6962 | rx_buffer->page_offset; | |
6963 | ||
6964 | /* prefetch first cache line of first page */ | |
6965 | prefetch(page_addr); | |
6966 | #if L1_CACHE_BYTES < 128 | |
6967 | prefetch(page_addr + L1_CACHE_BYTES); | |
6968 | #endif | |
6969 | ||
6970 | /* allocate a skb to store the frags */ | |
67fd893e | 6971 | skb = napi_alloc_skb(&rx_ring->q_vector->napi, IGB_RX_HDR_LEN); |
2e334eee AD |
6972 | if (unlikely(!skb)) { |
6973 | rx_ring->rx_stats.alloc_failed++; | |
6974 | return NULL; | |
6975 | } | |
6976 | ||
b980ac18 | 6977 | /* we will be copying header into skb->data in |
2e334eee AD |
6978 | * pskb_may_pull so it is in our interest to prefetch |
6979 | * it now to avoid a possible cache miss | |
6980 | */ | |
6981 | prefetchw(skb->data); | |
6982 | } | |
6983 | ||
2e334eee | 6984 | /* pull page into skb */ |
64f2525c | 6985 | if (igb_add_rx_frag(rx_ring, rx_buffer, size, rx_desc, skb)) { |
2e334eee AD |
6986 | /* hand second half of page back to the ring */ |
6987 | igb_reuse_rx_page(rx_ring, rx_buffer); | |
6988 | } else { | |
bd4171a5 AD |
6989 | /* We are not reusing the buffer so unmap it and free |
6990 | * any references we are holding to it | |
6991 | */ | |
5be59554 AD |
6992 | dma_unmap_page_attrs(rx_ring->dev, rx_buffer->dma, |
6993 | PAGE_SIZE, DMA_FROM_DEVICE, | |
6994 | DMA_ATTR_SKIP_CPU_SYNC); | |
2976db80 | 6995 | __page_frag_cache_drain(page, rx_buffer->pagecnt_bias); |
2e334eee AD |
6996 | } |
6997 | ||
6998 | /* clear contents of rx_buffer */ | |
6999 | rx_buffer->page = NULL; | |
7000 | ||
7001 | return skb; | |
7002 | } | |
7003 | ||
cd392f5c | 7004 | static inline void igb_rx_checksum(struct igb_ring *ring, |
3ceb90fd AD |
7005 | union e1000_adv_rx_desc *rx_desc, |
7006 | struct sk_buff *skb) | |
9d5c8243 | 7007 | { |
bc8acf2c | 7008 | skb_checksum_none_assert(skb); |
9d5c8243 | 7009 | |
294e7d78 | 7010 | /* Ignore Checksum bit is set */ |
3ceb90fd | 7011 | if (igb_test_staterr(rx_desc, E1000_RXD_STAT_IXSM)) |
294e7d78 AD |
7012 | return; |
7013 | ||
7014 | /* Rx checksum disabled via ethtool */ | |
7015 | if (!(ring->netdev->features & NETIF_F_RXCSUM)) | |
9d5c8243 | 7016 | return; |
85ad76b2 | 7017 | |
9d5c8243 | 7018 | /* TCP/UDP checksum error bit is set */ |
3ceb90fd AD |
7019 | if (igb_test_staterr(rx_desc, |
7020 | E1000_RXDEXT_STATERR_TCPE | | |
7021 | E1000_RXDEXT_STATERR_IPE)) { | |
b980ac18 | 7022 | /* work around errata with sctp packets where the TCPE aka |
b9473560 JB |
7023 | * L4E bit is set incorrectly on 64 byte (60 byte w/o crc) |
7024 | * packets, (aka let the stack check the crc32c) | |
7025 | */ | |
866cff06 AD |
7026 | if (!((skb->len == 60) && |
7027 | test_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags))) { | |
12dcd86b | 7028 | u64_stats_update_begin(&ring->rx_syncp); |
04a5fcaa | 7029 | ring->rx_stats.csum_err++; |
12dcd86b ED |
7030 | u64_stats_update_end(&ring->rx_syncp); |
7031 | } | |
9d5c8243 | 7032 | /* let the stack verify checksum errors */ |
9d5c8243 AK |
7033 | return; |
7034 | } | |
7035 | /* It must be a TCP or UDP packet with a valid checksum */ | |
3ceb90fd AD |
7036 | if (igb_test_staterr(rx_desc, E1000_RXD_STAT_TCPCS | |
7037 | E1000_RXD_STAT_UDPCS)) | |
9d5c8243 AK |
7038 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
7039 | ||
3ceb90fd AD |
7040 | dev_dbg(ring->dev, "cksum success: bits %08X\n", |
7041 | le32_to_cpu(rx_desc->wb.upper.status_error)); | |
9d5c8243 AK |
7042 | } |
7043 | ||
077887c3 AD |
7044 | static inline void igb_rx_hash(struct igb_ring *ring, |
7045 | union e1000_adv_rx_desc *rx_desc, | |
7046 | struct sk_buff *skb) | |
7047 | { | |
7048 | if (ring->netdev->features & NETIF_F_RXHASH) | |
42bdf083 TH |
7049 | skb_set_hash(skb, |
7050 | le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), | |
7051 | PKT_HASH_TYPE_L3); | |
077887c3 AD |
7052 | } |
7053 | ||
2e334eee | 7054 | /** |
b980ac18 JK |
7055 | * igb_is_non_eop - process handling of non-EOP buffers |
7056 | * @rx_ring: Rx ring being processed | |
7057 | * @rx_desc: Rx descriptor for current buffer | |
7058 | * @skb: current socket buffer containing buffer in progress | |
2e334eee | 7059 | * |
b980ac18 JK |
7060 | * This function updates next to clean. If the buffer is an EOP buffer |
7061 | * this function exits returning false, otherwise it will place the | |
7062 | * sk_buff in the next buffer to be chained and return true indicating | |
7063 | * that this is in fact a non-EOP buffer. | |
2e334eee AD |
7064 | **/ |
7065 | static bool igb_is_non_eop(struct igb_ring *rx_ring, | |
7066 | union e1000_adv_rx_desc *rx_desc) | |
7067 | { | |
7068 | u32 ntc = rx_ring->next_to_clean + 1; | |
7069 | ||
7070 | /* fetch, update, and store next to clean */ | |
7071 | ntc = (ntc < rx_ring->count) ? ntc : 0; | |
7072 | rx_ring->next_to_clean = ntc; | |
7073 | ||
7074 | prefetch(IGB_RX_DESC(rx_ring, ntc)); | |
7075 | ||
7076 | if (likely(igb_test_staterr(rx_desc, E1000_RXD_STAT_EOP))) | |
7077 | return false; | |
7078 | ||
7079 | return true; | |
7080 | } | |
7081 | ||
1a1c225b | 7082 | /** |
b980ac18 JK |
7083 | * igb_cleanup_headers - Correct corrupted or empty headers |
7084 | * @rx_ring: rx descriptor ring packet is being transacted on | |
7085 | * @rx_desc: pointer to the EOP Rx descriptor | |
7086 | * @skb: pointer to current skb being fixed | |
1a1c225b | 7087 | * |
b980ac18 JK |
7088 | * Address the case where we are pulling data in on pages only |
7089 | * and as such no data is present in the skb header. | |
1a1c225b | 7090 | * |
b980ac18 JK |
7091 | * In addition if skb is not at least 60 bytes we need to pad it so that |
7092 | * it is large enough to qualify as a valid Ethernet frame. | |
1a1c225b | 7093 | * |
b980ac18 | 7094 | * Returns true if an error was encountered and skb was freed. |
1a1c225b AD |
7095 | **/ |
7096 | static bool igb_cleanup_headers(struct igb_ring *rx_ring, | |
7097 | union e1000_adv_rx_desc *rx_desc, | |
7098 | struct sk_buff *skb) | |
7099 | { | |
1a1c225b AD |
7100 | if (unlikely((igb_test_staterr(rx_desc, |
7101 | E1000_RXDEXT_ERR_FRAME_ERR_MASK)))) { | |
7102 | struct net_device *netdev = rx_ring->netdev; | |
7103 | if (!(netdev->features & NETIF_F_RXALL)) { | |
7104 | dev_kfree_skb_any(skb); | |
7105 | return true; | |
7106 | } | |
7107 | } | |
7108 | ||
a94d9e22 AD |
7109 | /* if eth_skb_pad returns an error the skb was freed */ |
7110 | if (eth_skb_pad(skb)) | |
7111 | return true; | |
1a1c225b AD |
7112 | |
7113 | return false; | |
2d94d8ab AD |
7114 | } |
7115 | ||
db2ee5bd | 7116 | /** |
b980ac18 JK |
7117 | * igb_process_skb_fields - Populate skb header fields from Rx descriptor |
7118 | * @rx_ring: rx descriptor ring packet is being transacted on | |
7119 | * @rx_desc: pointer to the EOP Rx descriptor | |
7120 | * @skb: pointer to current skb being populated | |
db2ee5bd | 7121 | * |
b980ac18 JK |
7122 | * This function checks the ring, descriptor, and packet information in |
7123 | * order to populate the hash, checksum, VLAN, timestamp, protocol, and | |
7124 | * other fields within the skb. | |
db2ee5bd AD |
7125 | **/ |
7126 | static void igb_process_skb_fields(struct igb_ring *rx_ring, | |
7127 | union e1000_adv_rx_desc *rx_desc, | |
7128 | struct sk_buff *skb) | |
7129 | { | |
7130 | struct net_device *dev = rx_ring->netdev; | |
7131 | ||
7132 | igb_rx_hash(rx_ring, rx_desc, skb); | |
7133 | ||
7134 | igb_rx_checksum(rx_ring, rx_desc, skb); | |
7135 | ||
5499a968 JK |
7136 | if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TS) && |
7137 | !igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) | |
7138 | igb_ptp_rx_rgtstamp(rx_ring->q_vector, skb); | |
db2ee5bd | 7139 | |
f646968f | 7140 | if ((dev->features & NETIF_F_HW_VLAN_CTAG_RX) && |
db2ee5bd AD |
7141 | igb_test_staterr(rx_desc, E1000_RXD_STAT_VP)) { |
7142 | u16 vid; | |
9005df38 | 7143 | |
db2ee5bd AD |
7144 | if (igb_test_staterr(rx_desc, E1000_RXDEXT_STATERR_LB) && |
7145 | test_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &rx_ring->flags)) | |
7146 | vid = be16_to_cpu(rx_desc->wb.upper.vlan); | |
7147 | else | |
7148 | vid = le16_to_cpu(rx_desc->wb.upper.vlan); | |
7149 | ||
86a9bad3 | 7150 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
db2ee5bd AD |
7151 | } |
7152 | ||
7153 | skb_record_rx_queue(skb, rx_ring->queue_index); | |
7154 | ||
7155 | skb->protocol = eth_type_trans(skb, rx_ring->netdev); | |
7156 | } | |
7157 | ||
32b3e08f | 7158 | static int igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget) |
9d5c8243 | 7159 | { |
0ba82994 | 7160 | struct igb_ring *rx_ring = q_vector->rx.ring; |
1a1c225b | 7161 | struct sk_buff *skb = rx_ring->skb; |
9d5c8243 | 7162 | unsigned int total_bytes = 0, total_packets = 0; |
16eb8815 | 7163 | u16 cleaned_count = igb_desc_unused(rx_ring); |
9d5c8243 | 7164 | |
57ba34c9 | 7165 | while (likely(total_packets < budget)) { |
2e334eee | 7166 | union e1000_adv_rx_desc *rx_desc; |
bf36c1a0 | 7167 | |
2e334eee AD |
7168 | /* return some buffers to hardware, one at a time is too slow */ |
7169 | if (cleaned_count >= IGB_RX_BUFFER_WRITE) { | |
7170 | igb_alloc_rx_buffers(rx_ring, cleaned_count); | |
7171 | cleaned_count = 0; | |
7172 | } | |
bf36c1a0 | 7173 | |
2e334eee | 7174 | rx_desc = IGB_RX_DESC(rx_ring, rx_ring->next_to_clean); |
16eb8815 | 7175 | |
124b74c1 | 7176 | if (!rx_desc->wb.upper.status_error) |
2e334eee | 7177 | break; |
9d5c8243 | 7178 | |
74e238ea AD |
7179 | /* This memory barrier is needed to keep us from reading |
7180 | * any other fields out of the rx_desc until we know the | |
124b74c1 | 7181 | * descriptor has been written back |
74e238ea | 7182 | */ |
124b74c1 | 7183 | dma_rmb(); |
74e238ea | 7184 | |
2e334eee | 7185 | /* retrieve a buffer from the ring */ |
f9d40f6a | 7186 | skb = igb_fetch_rx_buffer(rx_ring, rx_desc, skb); |
9d5c8243 | 7187 | |
2e334eee AD |
7188 | /* exit if we failed to retrieve a buffer */ |
7189 | if (!skb) | |
7190 | break; | |
1a1c225b | 7191 | |
2e334eee | 7192 | cleaned_count++; |
1a1c225b | 7193 | |
2e334eee AD |
7194 | /* fetch next buffer in frame if non-eop */ |
7195 | if (igb_is_non_eop(rx_ring, rx_desc)) | |
7196 | continue; | |
1a1c225b AD |
7197 | |
7198 | /* verify the packet layout is correct */ | |
7199 | if (igb_cleanup_headers(rx_ring, rx_desc, skb)) { | |
7200 | skb = NULL; | |
7201 | continue; | |
9d5c8243 | 7202 | } |
9d5c8243 | 7203 | |
db2ee5bd | 7204 | /* probably a little skewed due to removing CRC */ |
3ceb90fd | 7205 | total_bytes += skb->len; |
3ceb90fd | 7206 | |
db2ee5bd AD |
7207 | /* populate checksum, timestamp, VLAN, and protocol */ |
7208 | igb_process_skb_fields(rx_ring, rx_desc, skb); | |
3ceb90fd | 7209 | |
b2cb09b1 | 7210 | napi_gro_receive(&q_vector->napi, skb); |
9d5c8243 | 7211 | |
1a1c225b AD |
7212 | /* reset skb pointer */ |
7213 | skb = NULL; | |
7214 | ||
2e334eee AD |
7215 | /* update budget accounting */ |
7216 | total_packets++; | |
57ba34c9 | 7217 | } |
bf36c1a0 | 7218 | |
1a1c225b AD |
7219 | /* place incomplete frames back on ring for completion */ |
7220 | rx_ring->skb = skb; | |
7221 | ||
12dcd86b | 7222 | u64_stats_update_begin(&rx_ring->rx_syncp); |
9d5c8243 AK |
7223 | rx_ring->rx_stats.packets += total_packets; |
7224 | rx_ring->rx_stats.bytes += total_bytes; | |
12dcd86b | 7225 | u64_stats_update_end(&rx_ring->rx_syncp); |
0ba82994 AD |
7226 | q_vector->rx.total_packets += total_packets; |
7227 | q_vector->rx.total_bytes += total_bytes; | |
c023cd88 AD |
7228 | |
7229 | if (cleaned_count) | |
cd392f5c | 7230 | igb_alloc_rx_buffers(rx_ring, cleaned_count); |
c023cd88 | 7231 | |
32b3e08f | 7232 | return total_packets; |
9d5c8243 AK |
7233 | } |
7234 | ||
c023cd88 | 7235 | static bool igb_alloc_mapped_page(struct igb_ring *rx_ring, |
06034649 | 7236 | struct igb_rx_buffer *bi) |
c023cd88 AD |
7237 | { |
7238 | struct page *page = bi->page; | |
cbc8e55f | 7239 | dma_addr_t dma; |
c023cd88 | 7240 | |
cbc8e55f AD |
7241 | /* since we are recycling buffers we should seldom need to alloc */ |
7242 | if (likely(page)) | |
c023cd88 AD |
7243 | return true; |
7244 | ||
cbc8e55f | 7245 | /* alloc new page for storage */ |
42b17f09 | 7246 | page = dev_alloc_page(); |
cbc8e55f AD |
7247 | if (unlikely(!page)) { |
7248 | rx_ring->rx_stats.alloc_failed++; | |
7249 | return false; | |
c023cd88 AD |
7250 | } |
7251 | ||
cbc8e55f | 7252 | /* map page for use */ |
5be59554 AD |
7253 | dma = dma_map_page_attrs(rx_ring->dev, page, 0, PAGE_SIZE, |
7254 | DMA_FROM_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); | |
c023cd88 | 7255 | |
b980ac18 | 7256 | /* if mapping failed free memory back to system since |
cbc8e55f AD |
7257 | * there isn't much point in holding memory we can't use |
7258 | */ | |
1a1c225b | 7259 | if (dma_mapping_error(rx_ring->dev, dma)) { |
cbc8e55f AD |
7260 | __free_page(page); |
7261 | ||
c023cd88 AD |
7262 | rx_ring->rx_stats.alloc_failed++; |
7263 | return false; | |
7264 | } | |
7265 | ||
1a1c225b | 7266 | bi->dma = dma; |
cbc8e55f AD |
7267 | bi->page = page; |
7268 | bi->page_offset = 0; | |
bd4171a5 | 7269 | bi->pagecnt_bias = 1; |
1a1c225b | 7270 | |
c023cd88 AD |
7271 | return true; |
7272 | } | |
7273 | ||
9d5c8243 | 7274 | /** |
b980ac18 JK |
7275 | * igb_alloc_rx_buffers - Replace used receive buffers; packet split |
7276 | * @adapter: address of board private structure | |
9d5c8243 | 7277 | **/ |
cd392f5c | 7278 | void igb_alloc_rx_buffers(struct igb_ring *rx_ring, u16 cleaned_count) |
9d5c8243 | 7279 | { |
9d5c8243 | 7280 | union e1000_adv_rx_desc *rx_desc; |
06034649 | 7281 | struct igb_rx_buffer *bi; |
c023cd88 | 7282 | u16 i = rx_ring->next_to_use; |
9d5c8243 | 7283 | |
cbc8e55f AD |
7284 | /* nothing to do */ |
7285 | if (!cleaned_count) | |
7286 | return; | |
7287 | ||
60136906 | 7288 | rx_desc = IGB_RX_DESC(rx_ring, i); |
06034649 | 7289 | bi = &rx_ring->rx_buffer_info[i]; |
c023cd88 | 7290 | i -= rx_ring->count; |
9d5c8243 | 7291 | |
cbc8e55f | 7292 | do { |
1a1c225b | 7293 | if (!igb_alloc_mapped_page(rx_ring, bi)) |
c023cd88 | 7294 | break; |
9d5c8243 | 7295 | |
5be59554 AD |
7296 | /* sync the buffer for use by the device */ |
7297 | dma_sync_single_range_for_device(rx_ring->dev, bi->dma, | |
7298 | bi->page_offset, | |
7299 | IGB_RX_BUFSZ, | |
7300 | DMA_FROM_DEVICE); | |
7301 | ||
b980ac18 | 7302 | /* Refresh the desc even if buffer_addrs didn't change |
cbc8e55f AD |
7303 | * because each write-back erases this info. |
7304 | */ | |
f9d40f6a | 7305 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset); |
9d5c8243 | 7306 | |
c023cd88 AD |
7307 | rx_desc++; |
7308 | bi++; | |
9d5c8243 | 7309 | i++; |
c023cd88 | 7310 | if (unlikely(!i)) { |
60136906 | 7311 | rx_desc = IGB_RX_DESC(rx_ring, 0); |
06034649 | 7312 | bi = rx_ring->rx_buffer_info; |
c023cd88 AD |
7313 | i -= rx_ring->count; |
7314 | } | |
7315 | ||
95dd44b4 AD |
7316 | /* clear the status bits for the next_to_use descriptor */ |
7317 | rx_desc->wb.upper.status_error = 0; | |
cbc8e55f AD |
7318 | |
7319 | cleaned_count--; | |
7320 | } while (cleaned_count); | |
9d5c8243 | 7321 | |
c023cd88 AD |
7322 | i += rx_ring->count; |
7323 | ||
9d5c8243 | 7324 | if (rx_ring->next_to_use != i) { |
cbc8e55f | 7325 | /* record the next descriptor to use */ |
9d5c8243 | 7326 | rx_ring->next_to_use = i; |
9d5c8243 | 7327 | |
cbc8e55f AD |
7328 | /* update next to alloc since we have filled the ring */ |
7329 | rx_ring->next_to_alloc = i; | |
7330 | ||
b980ac18 | 7331 | /* Force memory writes to complete before letting h/w |
9d5c8243 AK |
7332 | * know there are new descriptors to fetch. (Only |
7333 | * applicable for weak-ordered memory model archs, | |
cbc8e55f AD |
7334 | * such as IA-64). |
7335 | */ | |
9d5c8243 | 7336 | wmb(); |
fce99e34 | 7337 | writel(i, rx_ring->tail); |
9d5c8243 AK |
7338 | } |
7339 | } | |
7340 | ||
7341 | /** | |
7342 | * igb_mii_ioctl - | |
7343 | * @netdev: | |
7344 | * @ifreq: | |
7345 | * @cmd: | |
7346 | **/ | |
7347 | static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) | |
7348 | { | |
7349 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7350 | struct mii_ioctl_data *data = if_mii(ifr); | |
7351 | ||
7352 | if (adapter->hw.phy.media_type != e1000_media_type_copper) | |
7353 | return -EOPNOTSUPP; | |
7354 | ||
7355 | switch (cmd) { | |
7356 | case SIOCGMIIPHY: | |
7357 | data->phy_id = adapter->hw.phy.addr; | |
7358 | break; | |
7359 | case SIOCGMIIREG: | |
f5f4cf08 | 7360 | if (igb_read_phy_reg(&adapter->hw, data->reg_num & 0x1F, |
9005df38 | 7361 | &data->val_out)) |
9d5c8243 AK |
7362 | return -EIO; |
7363 | break; | |
7364 | case SIOCSMIIREG: | |
7365 | default: | |
7366 | return -EOPNOTSUPP; | |
7367 | } | |
7368 | return 0; | |
7369 | } | |
7370 | ||
7371 | /** | |
7372 | * igb_ioctl - | |
7373 | * @netdev: | |
7374 | * @ifreq: | |
7375 | * @cmd: | |
7376 | **/ | |
7377 | static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) | |
7378 | { | |
7379 | switch (cmd) { | |
7380 | case SIOCGMIIPHY: | |
7381 | case SIOCGMIIREG: | |
7382 | case SIOCSMIIREG: | |
7383 | return igb_mii_ioctl(netdev, ifr, cmd); | |
6ab5f7b2 JK |
7384 | case SIOCGHWTSTAMP: |
7385 | return igb_ptp_get_ts_config(netdev, ifr); | |
c6cb090b | 7386 | case SIOCSHWTSTAMP: |
6ab5f7b2 | 7387 | return igb_ptp_set_ts_config(netdev, ifr); |
9d5c8243 AK |
7388 | default: |
7389 | return -EOPNOTSUPP; | |
7390 | } | |
7391 | } | |
7392 | ||
94826487 TF |
7393 | void igb_read_pci_cfg(struct e1000_hw *hw, u32 reg, u16 *value) |
7394 | { | |
7395 | struct igb_adapter *adapter = hw->back; | |
7396 | ||
7397 | pci_read_config_word(adapter->pdev, reg, value); | |
7398 | } | |
7399 | ||
7400 | void igb_write_pci_cfg(struct e1000_hw *hw, u32 reg, u16 *value) | |
7401 | { | |
7402 | struct igb_adapter *adapter = hw->back; | |
7403 | ||
7404 | pci_write_config_word(adapter->pdev, reg, *value); | |
7405 | } | |
7406 | ||
009bc06e AD |
7407 | s32 igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) |
7408 | { | |
7409 | struct igb_adapter *adapter = hw->back; | |
009bc06e | 7410 | |
23d028cc | 7411 | if (pcie_capability_read_word(adapter->pdev, reg, value)) |
009bc06e AD |
7412 | return -E1000_ERR_CONFIG; |
7413 | ||
009bc06e AD |
7414 | return 0; |
7415 | } | |
7416 | ||
7417 | s32 igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) | |
7418 | { | |
7419 | struct igb_adapter *adapter = hw->back; | |
009bc06e | 7420 | |
23d028cc | 7421 | if (pcie_capability_write_word(adapter->pdev, reg, *value)) |
009bc06e AD |
7422 | return -E1000_ERR_CONFIG; |
7423 | ||
009bc06e AD |
7424 | return 0; |
7425 | } | |
7426 | ||
c8f44aff | 7427 | static void igb_vlan_mode(struct net_device *netdev, netdev_features_t features) |
9d5c8243 AK |
7428 | { |
7429 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7430 | struct e1000_hw *hw = &adapter->hw; | |
7431 | u32 ctrl, rctl; | |
f646968f | 7432 | bool enable = !!(features & NETIF_F_HW_VLAN_CTAG_RX); |
9d5c8243 | 7433 | |
5faf030c | 7434 | if (enable) { |
9d5c8243 AK |
7435 | /* enable VLAN tag insert/strip */ |
7436 | ctrl = rd32(E1000_CTRL); | |
7437 | ctrl |= E1000_CTRL_VME; | |
7438 | wr32(E1000_CTRL, ctrl); | |
7439 | ||
51466239 | 7440 | /* Disable CFI check */ |
9d5c8243 | 7441 | rctl = rd32(E1000_RCTL); |
9d5c8243 AK |
7442 | rctl &= ~E1000_RCTL_CFIEN; |
7443 | wr32(E1000_RCTL, rctl); | |
9d5c8243 AK |
7444 | } else { |
7445 | /* disable VLAN tag insert/strip */ | |
7446 | ctrl = rd32(E1000_CTRL); | |
7447 | ctrl &= ~E1000_CTRL_VME; | |
7448 | wr32(E1000_CTRL, ctrl); | |
9d5c8243 AK |
7449 | } |
7450 | ||
030f9f52 | 7451 | igb_set_vf_vlan_strip(adapter, adapter->vfs_allocated_count, enable); |
9d5c8243 AK |
7452 | } |
7453 | ||
80d5c368 PM |
7454 | static int igb_vlan_rx_add_vid(struct net_device *netdev, |
7455 | __be16 proto, u16 vid) | |
9d5c8243 AK |
7456 | { |
7457 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7458 | struct e1000_hw *hw = &adapter->hw; | |
4ae196df | 7459 | int pf_id = adapter->vfs_allocated_count; |
9d5c8243 | 7460 | |
51466239 | 7461 | /* add the filter since PF can receive vlans w/o entry in vlvf */ |
16903caa AD |
7462 | if (!vid || !(adapter->flags & IGB_FLAG_VLAN_PROMISC)) |
7463 | igb_vfta_set(hw, vid, pf_id, true, !!vid); | |
b2cb09b1 JP |
7464 | |
7465 | set_bit(vid, adapter->active_vlans); | |
8e586137 JP |
7466 | |
7467 | return 0; | |
9d5c8243 AK |
7468 | } |
7469 | ||
80d5c368 PM |
7470 | static int igb_vlan_rx_kill_vid(struct net_device *netdev, |
7471 | __be16 proto, u16 vid) | |
9d5c8243 AK |
7472 | { |
7473 | struct igb_adapter *adapter = netdev_priv(netdev); | |
4ae196df | 7474 | int pf_id = adapter->vfs_allocated_count; |
8b77c6b2 | 7475 | struct e1000_hw *hw = &adapter->hw; |
9d5c8243 | 7476 | |
8b77c6b2 | 7477 | /* remove VID from filter table */ |
16903caa AD |
7478 | if (vid && !(adapter->flags & IGB_FLAG_VLAN_PROMISC)) |
7479 | igb_vfta_set(hw, vid, pf_id, false, true); | |
b2cb09b1 JP |
7480 | |
7481 | clear_bit(vid, adapter->active_vlans); | |
8e586137 JP |
7482 | |
7483 | return 0; | |
9d5c8243 AK |
7484 | } |
7485 | ||
7486 | static void igb_restore_vlan(struct igb_adapter *adapter) | |
7487 | { | |
5982a556 | 7488 | u16 vid = 1; |
9d5c8243 | 7489 | |
5faf030c | 7490 | igb_vlan_mode(adapter->netdev, adapter->netdev->features); |
5982a556 | 7491 | igb_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), 0); |
5faf030c | 7492 | |
5982a556 | 7493 | for_each_set_bit_from(vid, adapter->active_vlans, VLAN_N_VID) |
80d5c368 | 7494 | igb_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid); |
9d5c8243 AK |
7495 | } |
7496 | ||
14ad2513 | 7497 | int igb_set_spd_dplx(struct igb_adapter *adapter, u32 spd, u8 dplx) |
9d5c8243 | 7498 | { |
090b1795 | 7499 | struct pci_dev *pdev = adapter->pdev; |
9d5c8243 AK |
7500 | struct e1000_mac_info *mac = &adapter->hw.mac; |
7501 | ||
7502 | mac->autoneg = 0; | |
7503 | ||
14ad2513 | 7504 | /* Make sure dplx is at most 1 bit and lsb of speed is not set |
b980ac18 JK |
7505 | * for the switch() below to work |
7506 | */ | |
14ad2513 DD |
7507 | if ((spd & 1) || (dplx & ~1)) |
7508 | goto err_inval; | |
7509 | ||
f502ef7d AA |
7510 | /* Fiber NIC's only allow 1000 gbps Full duplex |
7511 | * and 100Mbps Full duplex for 100baseFx sfp | |
7512 | */ | |
7513 | if (adapter->hw.phy.media_type == e1000_media_type_internal_serdes) { | |
7514 | switch (spd + dplx) { | |
7515 | case SPEED_10 + DUPLEX_HALF: | |
7516 | case SPEED_10 + DUPLEX_FULL: | |
7517 | case SPEED_100 + DUPLEX_HALF: | |
7518 | goto err_inval; | |
7519 | default: | |
7520 | break; | |
7521 | } | |
7522 | } | |
cd2638a8 | 7523 | |
14ad2513 | 7524 | switch (spd + dplx) { |
9d5c8243 AK |
7525 | case SPEED_10 + DUPLEX_HALF: |
7526 | mac->forced_speed_duplex = ADVERTISE_10_HALF; | |
7527 | break; | |
7528 | case SPEED_10 + DUPLEX_FULL: | |
7529 | mac->forced_speed_duplex = ADVERTISE_10_FULL; | |
7530 | break; | |
7531 | case SPEED_100 + DUPLEX_HALF: | |
7532 | mac->forced_speed_duplex = ADVERTISE_100_HALF; | |
7533 | break; | |
7534 | case SPEED_100 + DUPLEX_FULL: | |
7535 | mac->forced_speed_duplex = ADVERTISE_100_FULL; | |
7536 | break; | |
7537 | case SPEED_1000 + DUPLEX_FULL: | |
7538 | mac->autoneg = 1; | |
7539 | adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL; | |
7540 | break; | |
7541 | case SPEED_1000 + DUPLEX_HALF: /* not supported */ | |
7542 | default: | |
14ad2513 | 7543 | goto err_inval; |
9d5c8243 | 7544 | } |
8376dad0 JB |
7545 | |
7546 | /* clear MDI, MDI(-X) override is only allowed when autoneg enabled */ | |
7547 | adapter->hw.phy.mdix = AUTO_ALL_MODES; | |
7548 | ||
9d5c8243 | 7549 | return 0; |
14ad2513 DD |
7550 | |
7551 | err_inval: | |
7552 | dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n"); | |
7553 | return -EINVAL; | |
9d5c8243 AK |
7554 | } |
7555 | ||
749ab2cd YZ |
7556 | static int __igb_shutdown(struct pci_dev *pdev, bool *enable_wake, |
7557 | bool runtime) | |
9d5c8243 AK |
7558 | { |
7559 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7560 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7561 | struct e1000_hw *hw = &adapter->hw; | |
2d064c06 | 7562 | u32 ctrl, rctl, status; |
749ab2cd | 7563 | u32 wufc = runtime ? E1000_WUFC_LNKC : adapter->wol; |
9d5c8243 AK |
7564 | #ifdef CONFIG_PM |
7565 | int retval = 0; | |
7566 | #endif | |
7567 | ||
7568 | netif_device_detach(netdev); | |
7569 | ||
a88f10ec | 7570 | if (netif_running(netdev)) |
749ab2cd | 7571 | __igb_close(netdev, true); |
a88f10ec | 7572 | |
8646f7b4 JK |
7573 | igb_ptp_suspend(adapter); |
7574 | ||
047e0030 | 7575 | igb_clear_interrupt_scheme(adapter); |
9d5c8243 AK |
7576 | |
7577 | #ifdef CONFIG_PM | |
7578 | retval = pci_save_state(pdev); | |
7579 | if (retval) | |
7580 | return retval; | |
7581 | #endif | |
7582 | ||
7583 | status = rd32(E1000_STATUS); | |
7584 | if (status & E1000_STATUS_LU) | |
7585 | wufc &= ~E1000_WUFC_LNKC; | |
7586 | ||
7587 | if (wufc) { | |
7588 | igb_setup_rctl(adapter); | |
ff41f8dc | 7589 | igb_set_rx_mode(netdev); |
9d5c8243 AK |
7590 | |
7591 | /* turn on all-multi mode if wake on multicast is enabled */ | |
7592 | if (wufc & E1000_WUFC_MC) { | |
7593 | rctl = rd32(E1000_RCTL); | |
7594 | rctl |= E1000_RCTL_MPE; | |
7595 | wr32(E1000_RCTL, rctl); | |
7596 | } | |
7597 | ||
7598 | ctrl = rd32(E1000_CTRL); | |
7599 | /* advertise wake from D3Cold */ | |
7600 | #define E1000_CTRL_ADVD3WUC 0x00100000 | |
7601 | /* phy power management enable */ | |
7602 | #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000 | |
7603 | ctrl |= E1000_CTRL_ADVD3WUC; | |
7604 | wr32(E1000_CTRL, ctrl); | |
7605 | ||
9d5c8243 | 7606 | /* Allow time for pending master requests to run */ |
330a6d6a | 7607 | igb_disable_pcie_master(hw); |
9d5c8243 AK |
7608 | |
7609 | wr32(E1000_WUC, E1000_WUC_PME_EN); | |
7610 | wr32(E1000_WUFC, wufc); | |
9d5c8243 AK |
7611 | } else { |
7612 | wr32(E1000_WUC, 0); | |
7613 | wr32(E1000_WUFC, 0); | |
9d5c8243 AK |
7614 | } |
7615 | ||
3fe7c4c9 RW |
7616 | *enable_wake = wufc || adapter->en_mng_pt; |
7617 | if (!*enable_wake) | |
88a268c1 NN |
7618 | igb_power_down_link(adapter); |
7619 | else | |
7620 | igb_power_up_link(adapter); | |
9d5c8243 AK |
7621 | |
7622 | /* Release control of h/w to f/w. If f/w is AMT enabled, this | |
b980ac18 JK |
7623 | * would have already happened in close and is redundant. |
7624 | */ | |
9d5c8243 AK |
7625 | igb_release_hw_control(adapter); |
7626 | ||
7627 | pci_disable_device(pdev); | |
7628 | ||
9d5c8243 AK |
7629 | return 0; |
7630 | } | |
7631 | ||
7632 | #ifdef CONFIG_PM | |
d9dd966d | 7633 | #ifdef CONFIG_PM_SLEEP |
749ab2cd | 7634 | static int igb_suspend(struct device *dev) |
3fe7c4c9 RW |
7635 | { |
7636 | int retval; | |
7637 | bool wake; | |
749ab2cd | 7638 | struct pci_dev *pdev = to_pci_dev(dev); |
3fe7c4c9 | 7639 | |
749ab2cd | 7640 | retval = __igb_shutdown(pdev, &wake, 0); |
3fe7c4c9 RW |
7641 | if (retval) |
7642 | return retval; | |
7643 | ||
7644 | if (wake) { | |
7645 | pci_prepare_to_sleep(pdev); | |
7646 | } else { | |
7647 | pci_wake_from_d3(pdev, false); | |
7648 | pci_set_power_state(pdev, PCI_D3hot); | |
7649 | } | |
7650 | ||
7651 | return 0; | |
7652 | } | |
d9dd966d | 7653 | #endif /* CONFIG_PM_SLEEP */ |
3fe7c4c9 | 7654 | |
749ab2cd | 7655 | static int igb_resume(struct device *dev) |
9d5c8243 | 7656 | { |
749ab2cd | 7657 | struct pci_dev *pdev = to_pci_dev(dev); |
9d5c8243 AK |
7658 | struct net_device *netdev = pci_get_drvdata(pdev); |
7659 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7660 | struct e1000_hw *hw = &adapter->hw; | |
7661 | u32 err; | |
7662 | ||
7663 | pci_set_power_state(pdev, PCI_D0); | |
7664 | pci_restore_state(pdev); | |
b94f2d77 | 7665 | pci_save_state(pdev); |
42bfd33a | 7666 | |
17a402a0 CW |
7667 | if (!pci_device_is_present(pdev)) |
7668 | return -ENODEV; | |
aed5dec3 | 7669 | err = pci_enable_device_mem(pdev); |
9d5c8243 AK |
7670 | if (err) { |
7671 | dev_err(&pdev->dev, | |
7672 | "igb: Cannot enable PCI device from suspend\n"); | |
7673 | return err; | |
7674 | } | |
7675 | pci_set_master(pdev); | |
7676 | ||
7677 | pci_enable_wake(pdev, PCI_D3hot, 0); | |
7678 | pci_enable_wake(pdev, PCI_D3cold, 0); | |
7679 | ||
53c7d064 | 7680 | if (igb_init_interrupt_scheme(adapter, true)) { |
a88f10ec AD |
7681 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
7682 | return -ENOMEM; | |
9d5c8243 AK |
7683 | } |
7684 | ||
9d5c8243 | 7685 | igb_reset(adapter); |
a8564f03 AD |
7686 | |
7687 | /* let the f/w know that the h/w is now under the control of the | |
b980ac18 JK |
7688 | * driver. |
7689 | */ | |
a8564f03 AD |
7690 | igb_get_hw_control(adapter); |
7691 | ||
9d5c8243 AK |
7692 | wr32(E1000_WUS, ~0); |
7693 | ||
749ab2cd | 7694 | if (netdev->flags & IFF_UP) { |
0c2cc02e | 7695 | rtnl_lock(); |
749ab2cd | 7696 | err = __igb_open(netdev, true); |
0c2cc02e | 7697 | rtnl_unlock(); |
a88f10ec AD |
7698 | if (err) |
7699 | return err; | |
7700 | } | |
9d5c8243 AK |
7701 | |
7702 | netif_device_attach(netdev); | |
749ab2cd YZ |
7703 | return 0; |
7704 | } | |
7705 | ||
749ab2cd YZ |
7706 | static int igb_runtime_idle(struct device *dev) |
7707 | { | |
7708 | struct pci_dev *pdev = to_pci_dev(dev); | |
7709 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7710 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7711 | ||
7712 | if (!igb_has_link(adapter)) | |
7713 | pm_schedule_suspend(dev, MSEC_PER_SEC * 5); | |
7714 | ||
7715 | return -EBUSY; | |
7716 | } | |
7717 | ||
7718 | static int igb_runtime_suspend(struct device *dev) | |
7719 | { | |
7720 | struct pci_dev *pdev = to_pci_dev(dev); | |
7721 | int retval; | |
7722 | bool wake; | |
7723 | ||
7724 | retval = __igb_shutdown(pdev, &wake, 1); | |
7725 | if (retval) | |
7726 | return retval; | |
7727 | ||
7728 | if (wake) { | |
7729 | pci_prepare_to_sleep(pdev); | |
7730 | } else { | |
7731 | pci_wake_from_d3(pdev, false); | |
7732 | pci_set_power_state(pdev, PCI_D3hot); | |
7733 | } | |
9d5c8243 | 7734 | |
9d5c8243 AK |
7735 | return 0; |
7736 | } | |
749ab2cd YZ |
7737 | |
7738 | static int igb_runtime_resume(struct device *dev) | |
7739 | { | |
7740 | return igb_resume(dev); | |
7741 | } | |
d61c81cb | 7742 | #endif /* CONFIG_PM */ |
9d5c8243 AK |
7743 | |
7744 | static void igb_shutdown(struct pci_dev *pdev) | |
7745 | { | |
3fe7c4c9 RW |
7746 | bool wake; |
7747 | ||
749ab2cd | 7748 | __igb_shutdown(pdev, &wake, 0); |
3fe7c4c9 RW |
7749 | |
7750 | if (system_state == SYSTEM_POWER_OFF) { | |
7751 | pci_wake_from_d3(pdev, wake); | |
7752 | pci_set_power_state(pdev, PCI_D3hot); | |
7753 | } | |
9d5c8243 AK |
7754 | } |
7755 | ||
fa44f2f1 GR |
7756 | #ifdef CONFIG_PCI_IOV |
7757 | static int igb_sriov_reinit(struct pci_dev *dev) | |
7758 | { | |
7759 | struct net_device *netdev = pci_get_drvdata(dev); | |
7760 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7761 | struct pci_dev *pdev = adapter->pdev; | |
7762 | ||
7763 | rtnl_lock(); | |
7764 | ||
7765 | if (netif_running(netdev)) | |
7766 | igb_close(netdev); | |
76252723 SA |
7767 | else |
7768 | igb_reset(adapter); | |
fa44f2f1 GR |
7769 | |
7770 | igb_clear_interrupt_scheme(adapter); | |
7771 | ||
7772 | igb_init_queue_configuration(adapter); | |
7773 | ||
7774 | if (igb_init_interrupt_scheme(adapter, true)) { | |
f468adc9 | 7775 | rtnl_unlock(); |
fa44f2f1 GR |
7776 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
7777 | return -ENOMEM; | |
7778 | } | |
7779 | ||
7780 | if (netif_running(netdev)) | |
7781 | igb_open(netdev); | |
7782 | ||
7783 | rtnl_unlock(); | |
7784 | ||
7785 | return 0; | |
7786 | } | |
7787 | ||
7788 | static int igb_pci_disable_sriov(struct pci_dev *dev) | |
7789 | { | |
7790 | int err = igb_disable_sriov(dev); | |
7791 | ||
7792 | if (!err) | |
7793 | err = igb_sriov_reinit(dev); | |
7794 | ||
7795 | return err; | |
7796 | } | |
7797 | ||
7798 | static int igb_pci_enable_sriov(struct pci_dev *dev, int num_vfs) | |
7799 | { | |
7800 | int err = igb_enable_sriov(dev, num_vfs); | |
7801 | ||
7802 | if (err) | |
7803 | goto out; | |
7804 | ||
7805 | err = igb_sriov_reinit(dev); | |
7806 | if (!err) | |
7807 | return num_vfs; | |
7808 | ||
7809 | out: | |
7810 | return err; | |
7811 | } | |
7812 | ||
7813 | #endif | |
7814 | static int igb_pci_sriov_configure(struct pci_dev *dev, int num_vfs) | |
7815 | { | |
7816 | #ifdef CONFIG_PCI_IOV | |
7817 | if (num_vfs == 0) | |
7818 | return igb_pci_disable_sriov(dev); | |
7819 | else | |
7820 | return igb_pci_enable_sriov(dev, num_vfs); | |
7821 | #endif | |
7822 | return 0; | |
7823 | } | |
7824 | ||
9d5c8243 | 7825 | #ifdef CONFIG_NET_POLL_CONTROLLER |
b980ac18 | 7826 | /* Polling 'interrupt' - used by things like netconsole to send skbs |
9d5c8243 AK |
7827 | * without having to re-enable interrupts. It's not called while |
7828 | * the interrupt routine is executing. | |
7829 | */ | |
7830 | static void igb_netpoll(struct net_device *netdev) | |
7831 | { | |
7832 | struct igb_adapter *adapter = netdev_priv(netdev); | |
eebbbdba | 7833 | struct e1000_hw *hw = &adapter->hw; |
0d1ae7f4 | 7834 | struct igb_q_vector *q_vector; |
9d5c8243 | 7835 | int i; |
9d5c8243 | 7836 | |
047e0030 | 7837 | for (i = 0; i < adapter->num_q_vectors; i++) { |
0d1ae7f4 | 7838 | q_vector = adapter->q_vector[i]; |
cd14ef54 | 7839 | if (adapter->flags & IGB_FLAG_HAS_MSIX) |
0d1ae7f4 AD |
7840 | wr32(E1000_EIMC, q_vector->eims_value); |
7841 | else | |
7842 | igb_irq_disable(adapter); | |
047e0030 | 7843 | napi_schedule(&q_vector->napi); |
eebbbdba | 7844 | } |
9d5c8243 AK |
7845 | } |
7846 | #endif /* CONFIG_NET_POLL_CONTROLLER */ | |
7847 | ||
7848 | /** | |
b980ac18 JK |
7849 | * igb_io_error_detected - called when PCI error is detected |
7850 | * @pdev: Pointer to PCI device | |
7851 | * @state: The current pci connection state | |
9d5c8243 | 7852 | * |
b980ac18 JK |
7853 | * This function is called after a PCI bus error affecting |
7854 | * this device has been detected. | |
7855 | **/ | |
9d5c8243 AK |
7856 | static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev, |
7857 | pci_channel_state_t state) | |
7858 | { | |
7859 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7860 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7861 | ||
7862 | netif_device_detach(netdev); | |
7863 | ||
59ed6eec AD |
7864 | if (state == pci_channel_io_perm_failure) |
7865 | return PCI_ERS_RESULT_DISCONNECT; | |
7866 | ||
9d5c8243 AK |
7867 | if (netif_running(netdev)) |
7868 | igb_down(adapter); | |
7869 | pci_disable_device(pdev); | |
7870 | ||
7871 | /* Request a slot slot reset. */ | |
7872 | return PCI_ERS_RESULT_NEED_RESET; | |
7873 | } | |
7874 | ||
7875 | /** | |
b980ac18 JK |
7876 | * igb_io_slot_reset - called after the pci bus has been reset. |
7877 | * @pdev: Pointer to PCI device | |
9d5c8243 | 7878 | * |
b980ac18 JK |
7879 | * Restart the card from scratch, as if from a cold-boot. Implementation |
7880 | * resembles the first-half of the igb_resume routine. | |
7881 | **/ | |
9d5c8243 AK |
7882 | static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev) |
7883 | { | |
7884 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7885 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7886 | struct e1000_hw *hw = &adapter->hw; | |
40a914fa | 7887 | pci_ers_result_t result; |
42bfd33a | 7888 | int err; |
9d5c8243 | 7889 | |
aed5dec3 | 7890 | if (pci_enable_device_mem(pdev)) { |
9d5c8243 AK |
7891 | dev_err(&pdev->dev, |
7892 | "Cannot re-enable PCI device after reset.\n"); | |
40a914fa AD |
7893 | result = PCI_ERS_RESULT_DISCONNECT; |
7894 | } else { | |
7895 | pci_set_master(pdev); | |
7896 | pci_restore_state(pdev); | |
b94f2d77 | 7897 | pci_save_state(pdev); |
9d5c8243 | 7898 | |
40a914fa AD |
7899 | pci_enable_wake(pdev, PCI_D3hot, 0); |
7900 | pci_enable_wake(pdev, PCI_D3cold, 0); | |
9d5c8243 | 7901 | |
40a914fa AD |
7902 | igb_reset(adapter); |
7903 | wr32(E1000_WUS, ~0); | |
7904 | result = PCI_ERS_RESULT_RECOVERED; | |
7905 | } | |
9d5c8243 | 7906 | |
ea943d41 JK |
7907 | err = pci_cleanup_aer_uncorrect_error_status(pdev); |
7908 | if (err) { | |
b980ac18 JK |
7909 | dev_err(&pdev->dev, |
7910 | "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n", | |
7911 | err); | |
ea943d41 JK |
7912 | /* non-fatal, continue */ |
7913 | } | |
40a914fa AD |
7914 | |
7915 | return result; | |
9d5c8243 AK |
7916 | } |
7917 | ||
7918 | /** | |
b980ac18 JK |
7919 | * igb_io_resume - called when traffic can start flowing again. |
7920 | * @pdev: Pointer to PCI device | |
9d5c8243 | 7921 | * |
b980ac18 JK |
7922 | * This callback is called when the error recovery driver tells us that |
7923 | * its OK to resume normal operation. Implementation resembles the | |
7924 | * second-half of the igb_resume routine. | |
9d5c8243 AK |
7925 | */ |
7926 | static void igb_io_resume(struct pci_dev *pdev) | |
7927 | { | |
7928 | struct net_device *netdev = pci_get_drvdata(pdev); | |
7929 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7930 | ||
9d5c8243 AK |
7931 | if (netif_running(netdev)) { |
7932 | if (igb_up(adapter)) { | |
7933 | dev_err(&pdev->dev, "igb_up failed after reset\n"); | |
7934 | return; | |
7935 | } | |
7936 | } | |
7937 | ||
7938 | netif_device_attach(netdev); | |
7939 | ||
7940 | /* let the f/w know that the h/w is now under the control of the | |
b980ac18 JK |
7941 | * driver. |
7942 | */ | |
9d5c8243 | 7943 | igb_get_hw_control(adapter); |
9d5c8243 AK |
7944 | } |
7945 | ||
26ad9178 | 7946 | static void igb_rar_set_qsel(struct igb_adapter *adapter, u8 *addr, u32 index, |
b980ac18 | 7947 | u8 qsel) |
26ad9178 | 7948 | { |
26ad9178 | 7949 | struct e1000_hw *hw = &adapter->hw; |
c3278587 | 7950 | u32 rar_low, rar_high; |
26ad9178 | 7951 | |
415cd2a6 AD |
7952 | /* HW expects these to be in network order when they are plugged |
7953 | * into the registers which are little endian. In order to guarantee | |
7954 | * that ordering we need to do an leXX_to_cpup here in order to be | |
7955 | * ready for the byteswap that occurs with writel | |
26ad9178 | 7956 | */ |
415cd2a6 AD |
7957 | rar_low = le32_to_cpup((__le32 *)(addr)); |
7958 | rar_high = le16_to_cpup((__le16 *)(addr + 4)); | |
26ad9178 AD |
7959 | |
7960 | /* Indicate to hardware the Address is Valid. */ | |
7961 | rar_high |= E1000_RAH_AV; | |
7962 | ||
7963 | if (hw->mac.type == e1000_82575) | |
7964 | rar_high |= E1000_RAH_POOL_1 * qsel; | |
7965 | else | |
7966 | rar_high |= E1000_RAH_POOL_1 << qsel; | |
7967 | ||
7968 | wr32(E1000_RAL(index), rar_low); | |
7969 | wrfl(); | |
7970 | wr32(E1000_RAH(index), rar_high); | |
7971 | wrfl(); | |
7972 | } | |
7973 | ||
4ae196df | 7974 | static int igb_set_vf_mac(struct igb_adapter *adapter, |
b980ac18 | 7975 | int vf, unsigned char *mac_addr) |
4ae196df AD |
7976 | { |
7977 | struct e1000_hw *hw = &adapter->hw; | |
ff41f8dc | 7978 | /* VF MAC addresses start at end of receive addresses and moves |
b980ac18 JK |
7979 | * towards the first, as a result a collision should not be possible |
7980 | */ | |
ff41f8dc | 7981 | int rar_entry = hw->mac.rar_entry_count - (vf + 1); |
4ae196df | 7982 | |
37680117 | 7983 | memcpy(adapter->vf_data[vf].vf_mac_addresses, mac_addr, ETH_ALEN); |
4ae196df | 7984 | |
26ad9178 | 7985 | igb_rar_set_qsel(adapter, mac_addr, rar_entry, vf); |
4ae196df AD |
7986 | |
7987 | return 0; | |
7988 | } | |
7989 | ||
8151d294 WM |
7990 | static int igb_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) |
7991 | { | |
7992 | struct igb_adapter *adapter = netdev_priv(netdev); | |
7993 | if (!is_valid_ether_addr(mac) || (vf >= adapter->vfs_allocated_count)) | |
7994 | return -EINVAL; | |
7995 | adapter->vf_data[vf].flags |= IGB_VF_FLAG_PF_SET_MAC; | |
7996 | dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); | |
b980ac18 JK |
7997 | dev_info(&adapter->pdev->dev, |
7998 | "Reload the VF driver to make this change effective."); | |
8151d294 | 7999 | if (test_bit(__IGB_DOWN, &adapter->state)) { |
b980ac18 JK |
8000 | dev_warn(&adapter->pdev->dev, |
8001 | "The VF MAC address has been set, but the PF device is not up.\n"); | |
8002 | dev_warn(&adapter->pdev->dev, | |
8003 | "Bring the PF device up before attempting to use the VF device.\n"); | |
8151d294 WM |
8004 | } |
8005 | return igb_set_vf_mac(adapter, vf, mac); | |
8006 | } | |
8007 | ||
17dc566c LL |
8008 | static int igb_link_mbps(int internal_link_speed) |
8009 | { | |
8010 | switch (internal_link_speed) { | |
8011 | case SPEED_100: | |
8012 | return 100; | |
8013 | case SPEED_1000: | |
8014 | return 1000; | |
8015 | default: | |
8016 | return 0; | |
8017 | } | |
8018 | } | |
8019 | ||
8020 | static void igb_set_vf_rate_limit(struct e1000_hw *hw, int vf, int tx_rate, | |
8021 | int link_speed) | |
8022 | { | |
8023 | int rf_dec, rf_int; | |
8024 | u32 bcnrc_val; | |
8025 | ||
8026 | if (tx_rate != 0) { | |
8027 | /* Calculate the rate factor values to set */ | |
8028 | rf_int = link_speed / tx_rate; | |
8029 | rf_dec = (link_speed - (rf_int * tx_rate)); | |
a51d8c21 | 8030 | rf_dec = (rf_dec * BIT(E1000_RTTBCNRC_RF_INT_SHIFT)) / |
b980ac18 | 8031 | tx_rate; |
17dc566c LL |
8032 | |
8033 | bcnrc_val = E1000_RTTBCNRC_RS_ENA; | |
b980ac18 JK |
8034 | bcnrc_val |= ((rf_int << E1000_RTTBCNRC_RF_INT_SHIFT) & |
8035 | E1000_RTTBCNRC_RF_INT_MASK); | |
17dc566c LL |
8036 | bcnrc_val |= (rf_dec & E1000_RTTBCNRC_RF_DEC_MASK); |
8037 | } else { | |
8038 | bcnrc_val = 0; | |
8039 | } | |
8040 | ||
8041 | wr32(E1000_RTTDQSEL, vf); /* vf X uses queue X */ | |
b980ac18 | 8042 | /* Set global transmit compensation time to the MMW_SIZE in RTTBCNRM |
f00b0da7 LL |
8043 | * register. MMW_SIZE=0x014 if 9728-byte jumbo is supported. |
8044 | */ | |
8045 | wr32(E1000_RTTBCNRM, 0x14); | |
17dc566c LL |
8046 | wr32(E1000_RTTBCNRC, bcnrc_val); |
8047 | } | |
8048 | ||
8049 | static void igb_check_vf_rate_limit(struct igb_adapter *adapter) | |
8050 | { | |
8051 | int actual_link_speed, i; | |
8052 | bool reset_rate = false; | |
8053 | ||
8054 | /* VF TX rate limit was not set or not supported */ | |
8055 | if ((adapter->vf_rate_link_speed == 0) || | |
8056 | (adapter->hw.mac.type != e1000_82576)) | |
8057 | return; | |
8058 | ||
8059 | actual_link_speed = igb_link_mbps(adapter->link_speed); | |
8060 | if (actual_link_speed != adapter->vf_rate_link_speed) { | |
8061 | reset_rate = true; | |
8062 | adapter->vf_rate_link_speed = 0; | |
8063 | dev_info(&adapter->pdev->dev, | |
b980ac18 | 8064 | "Link speed has been changed. VF Transmit rate is disabled\n"); |
17dc566c LL |
8065 | } |
8066 | ||
8067 | for (i = 0; i < adapter->vfs_allocated_count; i++) { | |
8068 | if (reset_rate) | |
8069 | adapter->vf_data[i].tx_rate = 0; | |
8070 | ||
8071 | igb_set_vf_rate_limit(&adapter->hw, i, | |
b980ac18 JK |
8072 | adapter->vf_data[i].tx_rate, |
8073 | actual_link_speed); | |
17dc566c LL |
8074 | } |
8075 | } | |
8076 | ||
ed616689 SC |
8077 | static int igb_ndo_set_vf_bw(struct net_device *netdev, int vf, |
8078 | int min_tx_rate, int max_tx_rate) | |
8151d294 | 8079 | { |
17dc566c LL |
8080 | struct igb_adapter *adapter = netdev_priv(netdev); |
8081 | struct e1000_hw *hw = &adapter->hw; | |
8082 | int actual_link_speed; | |
8083 | ||
8084 | if (hw->mac.type != e1000_82576) | |
8085 | return -EOPNOTSUPP; | |
8086 | ||
ed616689 SC |
8087 | if (min_tx_rate) |
8088 | return -EINVAL; | |
8089 | ||
17dc566c LL |
8090 | actual_link_speed = igb_link_mbps(adapter->link_speed); |
8091 | if ((vf >= adapter->vfs_allocated_count) || | |
8092 | (!(rd32(E1000_STATUS) & E1000_STATUS_LU)) || | |
ed616689 SC |
8093 | (max_tx_rate < 0) || |
8094 | (max_tx_rate > actual_link_speed)) | |
17dc566c LL |
8095 | return -EINVAL; |
8096 | ||
8097 | adapter->vf_rate_link_speed = actual_link_speed; | |
ed616689 SC |
8098 | adapter->vf_data[vf].tx_rate = (u16)max_tx_rate; |
8099 | igb_set_vf_rate_limit(hw, vf, max_tx_rate, actual_link_speed); | |
17dc566c LL |
8100 | |
8101 | return 0; | |
8151d294 WM |
8102 | } |
8103 | ||
70ea4783 LL |
8104 | static int igb_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, |
8105 | bool setting) | |
8106 | { | |
8107 | struct igb_adapter *adapter = netdev_priv(netdev); | |
8108 | struct e1000_hw *hw = &adapter->hw; | |
8109 | u32 reg_val, reg_offset; | |
8110 | ||
8111 | if (!adapter->vfs_allocated_count) | |
8112 | return -EOPNOTSUPP; | |
8113 | ||
8114 | if (vf >= adapter->vfs_allocated_count) | |
8115 | return -EINVAL; | |
8116 | ||
8117 | reg_offset = (hw->mac.type == e1000_82576) ? E1000_DTXSWC : E1000_TXSWC; | |
8118 | reg_val = rd32(reg_offset); | |
8119 | if (setting) | |
a51d8c21 JK |
8120 | reg_val |= (BIT(vf) | |
8121 | BIT(vf + E1000_DTXSWC_VLAN_SPOOF_SHIFT)); | |
70ea4783 | 8122 | else |
a51d8c21 JK |
8123 | reg_val &= ~(BIT(vf) | |
8124 | BIT(vf + E1000_DTXSWC_VLAN_SPOOF_SHIFT)); | |
70ea4783 LL |
8125 | wr32(reg_offset, reg_val); |
8126 | ||
8127 | adapter->vf_data[vf].spoofchk_enabled = setting; | |
23d87824 | 8128 | return 0; |
70ea4783 LL |
8129 | } |
8130 | ||
8151d294 WM |
8131 | static int igb_ndo_get_vf_config(struct net_device *netdev, |
8132 | int vf, struct ifla_vf_info *ivi) | |
8133 | { | |
8134 | struct igb_adapter *adapter = netdev_priv(netdev); | |
8135 | if (vf >= adapter->vfs_allocated_count) | |
8136 | return -EINVAL; | |
8137 | ivi->vf = vf; | |
8138 | memcpy(&ivi->mac, adapter->vf_data[vf].vf_mac_addresses, ETH_ALEN); | |
ed616689 SC |
8139 | ivi->max_tx_rate = adapter->vf_data[vf].tx_rate; |
8140 | ivi->min_tx_rate = 0; | |
8151d294 WM |
8141 | ivi->vlan = adapter->vf_data[vf].pf_vlan; |
8142 | ivi->qos = adapter->vf_data[vf].pf_qos; | |
70ea4783 | 8143 | ivi->spoofchk = adapter->vf_data[vf].spoofchk_enabled; |
8151d294 WM |
8144 | return 0; |
8145 | } | |
8146 | ||
4ae196df AD |
8147 | static void igb_vmm_control(struct igb_adapter *adapter) |
8148 | { | |
8149 | struct e1000_hw *hw = &adapter->hw; | |
10d8e907 | 8150 | u32 reg; |
4ae196df | 8151 | |
52a1dd4d AD |
8152 | switch (hw->mac.type) { |
8153 | case e1000_82575: | |
f96a8a0b CW |
8154 | case e1000_i210: |
8155 | case e1000_i211: | |
ceb5f13b | 8156 | case e1000_i354: |
52a1dd4d AD |
8157 | default: |
8158 | /* replication is not supported for 82575 */ | |
4ae196df | 8159 | return; |
52a1dd4d AD |
8160 | case e1000_82576: |
8161 | /* notify HW that the MAC is adding vlan tags */ | |
8162 | reg = rd32(E1000_DTXCTL); | |
8163 | reg |= E1000_DTXCTL_VLAN_ADDED; | |
8164 | wr32(E1000_DTXCTL, reg); | |
b26141d4 | 8165 | /* Fall through */ |
52a1dd4d AD |
8166 | case e1000_82580: |
8167 | /* enable replication vlan tag stripping */ | |
8168 | reg = rd32(E1000_RPLOLR); | |
8169 | reg |= E1000_RPLOLR_STRVLAN; | |
8170 | wr32(E1000_RPLOLR, reg); | |
b26141d4 | 8171 | /* Fall through */ |
d2ba2ed8 AD |
8172 | case e1000_i350: |
8173 | /* none of the above registers are supported by i350 */ | |
52a1dd4d AD |
8174 | break; |
8175 | } | |
10d8e907 | 8176 | |
d4960307 AD |
8177 | if (adapter->vfs_allocated_count) { |
8178 | igb_vmdq_set_loopback_pf(hw, true); | |
8179 | igb_vmdq_set_replication_pf(hw, true); | |
13800469 | 8180 | igb_vmdq_set_anti_spoofing_pf(hw, true, |
b980ac18 | 8181 | adapter->vfs_allocated_count); |
d4960307 AD |
8182 | } else { |
8183 | igb_vmdq_set_loopback_pf(hw, false); | |
8184 | igb_vmdq_set_replication_pf(hw, false); | |
8185 | } | |
4ae196df AD |
8186 | } |
8187 | ||
b6e0c419 CW |
8188 | static void igb_init_dmac(struct igb_adapter *adapter, u32 pba) |
8189 | { | |
8190 | struct e1000_hw *hw = &adapter->hw; | |
8191 | u32 dmac_thr; | |
8192 | u16 hwm; | |
8193 | ||
8194 | if (hw->mac.type > e1000_82580) { | |
8195 | if (adapter->flags & IGB_FLAG_DMAC) { | |
8196 | u32 reg; | |
8197 | ||
8198 | /* force threshold to 0. */ | |
8199 | wr32(E1000_DMCTXTH, 0); | |
8200 | ||
b980ac18 | 8201 | /* DMA Coalescing high water mark needs to be greater |
e8c626e9 MV |
8202 | * than the Rx threshold. Set hwm to PBA - max frame |
8203 | * size in 16B units, capping it at PBA - 6KB. | |
b6e0c419 | 8204 | */ |
45693bcb | 8205 | hwm = 64 * (pba - 6); |
e8c626e9 MV |
8206 | reg = rd32(E1000_FCRTC); |
8207 | reg &= ~E1000_FCRTC_RTH_COAL_MASK; | |
8208 | reg |= ((hwm << E1000_FCRTC_RTH_COAL_SHIFT) | |
8209 | & E1000_FCRTC_RTH_COAL_MASK); | |
8210 | wr32(E1000_FCRTC, reg); | |
8211 | ||
b980ac18 | 8212 | /* Set the DMA Coalescing Rx threshold to PBA - 2 * max |
e8c626e9 MV |
8213 | * frame size, capping it at PBA - 10KB. |
8214 | */ | |
45693bcb | 8215 | dmac_thr = pba - 10; |
b6e0c419 CW |
8216 | reg = rd32(E1000_DMACR); |
8217 | reg &= ~E1000_DMACR_DMACTHR_MASK; | |
b6e0c419 CW |
8218 | reg |= ((dmac_thr << E1000_DMACR_DMACTHR_SHIFT) |
8219 | & E1000_DMACR_DMACTHR_MASK); | |
8220 | ||
8221 | /* transition to L0x or L1 if available..*/ | |
8222 | reg |= (E1000_DMACR_DMAC_EN | E1000_DMACR_DMAC_LX_MASK); | |
8223 | ||
8224 | /* watchdog timer= +-1000 usec in 32usec intervals */ | |
8225 | reg |= (1000 >> 5); | |
0c02dd98 MV |
8226 | |
8227 | /* Disable BMC-to-OS Watchdog Enable */ | |
ceb5f13b CW |
8228 | if (hw->mac.type != e1000_i354) |
8229 | reg &= ~E1000_DMACR_DC_BMC2OSW_EN; | |
8230 | ||
b6e0c419 CW |
8231 | wr32(E1000_DMACR, reg); |
8232 | ||
b980ac18 | 8233 | /* no lower threshold to disable |
b6e0c419 CW |
8234 | * coalescing(smart fifb)-UTRESH=0 |
8235 | */ | |
8236 | wr32(E1000_DMCRTRH, 0); | |
b6e0c419 CW |
8237 | |
8238 | reg = (IGB_DMCTLX_DCFLUSH_DIS | 0x4); | |
8239 | ||
8240 | wr32(E1000_DMCTLX, reg); | |
8241 | ||
b980ac18 | 8242 | /* free space in tx packet buffer to wake from |
b6e0c419 CW |
8243 | * DMA coal |
8244 | */ | |
8245 | wr32(E1000_DMCTXTH, (IGB_MIN_TXPBSIZE - | |
8246 | (IGB_TX_BUF_4096 + adapter->max_frame_size)) >> 6); | |
8247 | ||
b980ac18 | 8248 | /* make low power state decision controlled |
b6e0c419 CW |
8249 | * by DMA coal |
8250 | */ | |
8251 | reg = rd32(E1000_PCIEMISC); | |
8252 | reg &= ~E1000_PCIEMISC_LX_DECISION; | |
8253 | wr32(E1000_PCIEMISC, reg); | |
8254 | } /* endif adapter->dmac is not disabled */ | |
8255 | } else if (hw->mac.type == e1000_82580) { | |
8256 | u32 reg = rd32(E1000_PCIEMISC); | |
9005df38 | 8257 | |
b6e0c419 CW |
8258 | wr32(E1000_PCIEMISC, reg & ~E1000_PCIEMISC_LX_DECISION); |
8259 | wr32(E1000_DMACR, 0); | |
8260 | } | |
8261 | } | |
8262 | ||
b980ac18 JK |
8263 | /** |
8264 | * igb_read_i2c_byte - Reads 8 bit word over I2C | |
441fc6fd CW |
8265 | * @hw: pointer to hardware structure |
8266 | * @byte_offset: byte offset to read | |
8267 | * @dev_addr: device address | |
8268 | * @data: value read | |
8269 | * | |
8270 | * Performs byte read operation over I2C interface at | |
8271 | * a specified device address. | |
b980ac18 | 8272 | **/ |
441fc6fd | 8273 | s32 igb_read_i2c_byte(struct e1000_hw *hw, u8 byte_offset, |
b980ac18 | 8274 | u8 dev_addr, u8 *data) |
441fc6fd CW |
8275 | { |
8276 | struct igb_adapter *adapter = container_of(hw, struct igb_adapter, hw); | |
603e86fa | 8277 | struct i2c_client *this_client = adapter->i2c_client; |
441fc6fd CW |
8278 | s32 status; |
8279 | u16 swfw_mask = 0; | |
8280 | ||
8281 | if (!this_client) | |
8282 | return E1000_ERR_I2C; | |
8283 | ||
8284 | swfw_mask = E1000_SWFW_PHY0_SM; | |
8285 | ||
23d87824 | 8286 | if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask)) |
441fc6fd CW |
8287 | return E1000_ERR_SWFW_SYNC; |
8288 | ||
8289 | status = i2c_smbus_read_byte_data(this_client, byte_offset); | |
8290 | hw->mac.ops.release_swfw_sync(hw, swfw_mask); | |
8291 | ||
8292 | if (status < 0) | |
8293 | return E1000_ERR_I2C; | |
8294 | else { | |
8295 | *data = status; | |
23d87824 | 8296 | return 0; |
441fc6fd CW |
8297 | } |
8298 | } | |
8299 | ||
b980ac18 JK |
8300 | /** |
8301 | * igb_write_i2c_byte - Writes 8 bit word over I2C | |
441fc6fd CW |
8302 | * @hw: pointer to hardware structure |
8303 | * @byte_offset: byte offset to write | |
8304 | * @dev_addr: device address | |
8305 | * @data: value to write | |
8306 | * | |
8307 | * Performs byte write operation over I2C interface at | |
8308 | * a specified device address. | |
b980ac18 | 8309 | **/ |
441fc6fd | 8310 | s32 igb_write_i2c_byte(struct e1000_hw *hw, u8 byte_offset, |
b980ac18 | 8311 | u8 dev_addr, u8 data) |
441fc6fd CW |
8312 | { |
8313 | struct igb_adapter *adapter = container_of(hw, struct igb_adapter, hw); | |
603e86fa | 8314 | struct i2c_client *this_client = adapter->i2c_client; |
441fc6fd CW |
8315 | s32 status; |
8316 | u16 swfw_mask = E1000_SWFW_PHY0_SM; | |
8317 | ||
8318 | if (!this_client) | |
8319 | return E1000_ERR_I2C; | |
8320 | ||
23d87824 | 8321 | if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask)) |
441fc6fd CW |
8322 | return E1000_ERR_SWFW_SYNC; |
8323 | status = i2c_smbus_write_byte_data(this_client, byte_offset, data); | |
8324 | hw->mac.ops.release_swfw_sync(hw, swfw_mask); | |
8325 | ||
8326 | if (status) | |
8327 | return E1000_ERR_I2C; | |
8328 | else | |
23d87824 | 8329 | return 0; |
441fc6fd CW |
8330 | |
8331 | } | |
907b7835 LMV |
8332 | |
8333 | int igb_reinit_queues(struct igb_adapter *adapter) | |
8334 | { | |
8335 | struct net_device *netdev = adapter->netdev; | |
8336 | struct pci_dev *pdev = adapter->pdev; | |
8337 | int err = 0; | |
8338 | ||
8339 | if (netif_running(netdev)) | |
8340 | igb_close(netdev); | |
8341 | ||
02ef6e1d | 8342 | igb_reset_interrupt_capability(adapter); |
907b7835 LMV |
8343 | |
8344 | if (igb_init_interrupt_scheme(adapter, true)) { | |
8345 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); | |
8346 | return -ENOMEM; | |
8347 | } | |
8348 | ||
8349 | if (netif_running(netdev)) | |
8350 | err = igb_open(netdev); | |
8351 | ||
8352 | return err; | |
8353 | } | |
0e71def2 GH |
8354 | |
8355 | static void igb_nfc_filter_exit(struct igb_adapter *adapter) | |
8356 | { | |
8357 | struct igb_nfc_filter *rule; | |
8358 | ||
8359 | spin_lock(&adapter->nfc_lock); | |
8360 | ||
8361 | hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) | |
8362 | igb_erase_filter(adapter, rule); | |
8363 | ||
8364 | spin_unlock(&adapter->nfc_lock); | |
8365 | } | |
8366 | ||
8367 | static void igb_nfc_filter_restore(struct igb_adapter *adapter) | |
8368 | { | |
8369 | struct igb_nfc_filter *rule; | |
8370 | ||
8371 | spin_lock(&adapter->nfc_lock); | |
8372 | ||
8373 | hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) | |
8374 | igb_add_filter(adapter, rule); | |
8375 | ||
8376 | spin_unlock(&adapter->nfc_lock); | |
8377 | } | |
9d5c8243 | 8378 | /* igb_main.c */ |