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34 #include <sys/queue.h>
40 #include <rte_common.h>
41 #include <rte_interrupts.h>
42 #include <rte_byteorder.h>
44 #include <rte_debug.h>
46 #include <rte_ether.h>
47 #include <rte_ethdev.h>
48 #include <rte_memory.h>
49 #include <rte_memzone.h>
50 #include <rte_tailq.h>
52 #include <rte_atomic.h>
53 #include <rte_malloc.h>
55 #include "e1000_logs.h"
56 #include "e1000/e1000_api.h"
57 #include "e1000_ethdev.h"
59 static int eth_igb_configure(struct rte_eth_dev *dev);
60 static int eth_igb_start(struct rte_eth_dev *dev);
61 static void eth_igb_stop(struct rte_eth_dev *dev);
62 static void eth_igb_close(struct rte_eth_dev *dev);
63 static void eth_igb_promiscuous_enable(struct rte_eth_dev *dev);
64 static void eth_igb_promiscuous_disable(struct rte_eth_dev *dev);
65 static void eth_igb_allmulticast_enable(struct rte_eth_dev *dev);
66 static void eth_igb_allmulticast_disable(struct rte_eth_dev *dev);
67 static int eth_igb_link_update(struct rte_eth_dev *dev,
68 int wait_to_complete);
69 static void eth_igb_stats_get(struct rte_eth_dev *dev,
70 struct rte_eth_stats *rte_stats);
71 static void eth_igb_stats_reset(struct rte_eth_dev *dev);
72 static void eth_igb_infos_get(struct rte_eth_dev *dev,
73 struct rte_eth_dev_info *dev_info);
74 static int eth_igb_flow_ctrl_set(struct rte_eth_dev *dev,
75 struct rte_eth_fc_conf *fc_conf);
76 static int eth_igb_lsc_interrupt_setup(struct rte_eth_dev *dev);
77 static int eth_igb_interrupt_get_status(struct rte_eth_dev *dev);
78 static int eth_igb_interrupt_action(struct rte_eth_dev *dev);
79 static void eth_igb_interrupt_handler(struct rte_intr_handle *handle,
81 static int igb_hardware_init(struct e1000_hw *hw);
82 static void igb_hw_control_acquire(struct e1000_hw *hw);
83 static void igb_hw_control_release(struct e1000_hw *hw);
84 static void igb_init_manageability(struct e1000_hw *hw);
85 static void igb_release_manageability(struct e1000_hw *hw);
87 static int eth_igb_vlan_filter_set(struct rte_eth_dev *dev,
88 uint16_t vlan_id, int on);
89 static void eth_igb_vlan_tpid_set(struct rte_eth_dev *dev, uint16_t tpid_id);
90 static void eth_igb_vlan_offload_set(struct rte_eth_dev *dev, int mask);
92 static void igb_vlan_hw_filter_enable(struct rte_eth_dev *dev);
93 static void igb_vlan_hw_filter_disable(struct rte_eth_dev *dev);
94 static void igb_vlan_hw_strip_enable(struct rte_eth_dev *dev);
95 static void igb_vlan_hw_strip_disable(struct rte_eth_dev *dev);
96 static void igb_vlan_hw_extend_enable(struct rte_eth_dev *dev);
97 static void igb_vlan_hw_extend_disable(struct rte_eth_dev *dev);
99 static int eth_igb_led_on(struct rte_eth_dev *dev);
100 static int eth_igb_led_off(struct rte_eth_dev *dev);
102 static void igb_intr_disable(struct e1000_hw *hw);
103 static int igb_get_rx_buffer_size(struct e1000_hw *hw);
104 static void eth_igb_rar_set(struct rte_eth_dev *dev,
105 struct ether_addr *mac_addr,
106 uint32_t index, uint32_t pool);
107 static void eth_igb_rar_clear(struct rte_eth_dev *dev, uint32_t index);
109 static void igbvf_intr_disable(struct e1000_hw *hw);
110 static int igbvf_dev_configure(struct rte_eth_dev *dev);
111 static int igbvf_dev_start(struct rte_eth_dev *dev);
112 static void igbvf_dev_stop(struct rte_eth_dev *dev);
113 static void igbvf_dev_close(struct rte_eth_dev *dev);
114 static int eth_igbvf_link_update(struct e1000_hw *hw);
115 static void eth_igbvf_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *rte_stats);
116 static void eth_igbvf_stats_reset(struct rte_eth_dev *dev);
117 static int igbvf_vlan_filter_set(struct rte_eth_dev *dev,
118 uint16_t vlan_id, int on);
119 static int igbvf_set_vfta(struct e1000_hw *hw, uint16_t vid, bool on);
120 static void igbvf_set_vfta_all(struct rte_eth_dev *dev, bool on);
121 static int eth_igb_rss_reta_update(struct rte_eth_dev *dev,
122 struct rte_eth_rss_reta *reta_conf);
123 static int eth_igb_rss_reta_query(struct rte_eth_dev *dev,
124 struct rte_eth_rss_reta *reta_conf);
127 * Define VF Stats MACRO for Non "cleared on read" register
129 #define UPDATE_VF_STAT(reg, last, cur) \
131 u32 latest = E1000_READ_REG(hw, reg); \
132 cur += latest - last; \
137 #define IGB_FC_PAUSE_TIME 0x0680
138 #define IGB_LINK_UPDATE_CHECK_TIMEOUT 90 /* 9s */
139 #define IGB_LINK_UPDATE_CHECK_INTERVAL 100 /* ms */
141 #define IGBVF_PMD_NAME "rte_igbvf_pmd" /* PMD name */
143 static enum e1000_fc_mode igb_fc_setting = e1000_fc_full;
146 * The set of PCI devices this driver supports
148 static struct rte_pci_id pci_id_igb_map[] = {
150 #define RTE_PCI_DEV_ID_DECL_IGB(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
151 #include "rte_pci_dev_ids.h"
157 * The set of PCI devices this driver supports (for 82576&I350 VF)
159 static struct rte_pci_id pci_id_igbvf_map[] = {
161 #define RTE_PCI_DEV_ID_DECL_IGBVF(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
162 #include "rte_pci_dev_ids.h"
167 static struct eth_dev_ops eth_igb_ops = {
168 .dev_configure = eth_igb_configure,
169 .dev_start = eth_igb_start,
170 .dev_stop = eth_igb_stop,
171 .dev_close = eth_igb_close,
172 .promiscuous_enable = eth_igb_promiscuous_enable,
173 .promiscuous_disable = eth_igb_promiscuous_disable,
174 .allmulticast_enable = eth_igb_allmulticast_enable,
175 .allmulticast_disable = eth_igb_allmulticast_disable,
176 .link_update = eth_igb_link_update,
177 .stats_get = eth_igb_stats_get,
178 .stats_reset = eth_igb_stats_reset,
179 .dev_infos_get = eth_igb_infos_get,
180 .vlan_filter_set = eth_igb_vlan_filter_set,
181 .vlan_tpid_set = eth_igb_vlan_tpid_set,
182 .vlan_offload_set = eth_igb_vlan_offload_set,
183 .rx_queue_setup = eth_igb_rx_queue_setup,
184 .rx_queue_release = eth_igb_rx_queue_release,
185 .rx_queue_count = eth_igb_rx_queue_count,
186 .rx_descriptor_done = eth_igb_rx_descriptor_done,
187 .tx_queue_setup = eth_igb_tx_queue_setup,
188 .tx_queue_release = eth_igb_tx_queue_release,
189 .dev_led_on = eth_igb_led_on,
190 .dev_led_off = eth_igb_led_off,
191 .flow_ctrl_set = eth_igb_flow_ctrl_set,
192 .mac_addr_add = eth_igb_rar_set,
193 .mac_addr_remove = eth_igb_rar_clear,
194 .reta_update = eth_igb_rss_reta_update,
195 .reta_query = eth_igb_rss_reta_query,
199 * dev_ops for virtual function, bare necessities for basic vf
200 * operation have been implemented
202 static struct eth_dev_ops igbvf_eth_dev_ops = {
203 .dev_configure = igbvf_dev_configure,
204 .dev_start = igbvf_dev_start,
205 .dev_stop = igbvf_dev_stop,
206 .dev_close = igbvf_dev_close,
207 .link_update = eth_igb_link_update,
208 .stats_get = eth_igbvf_stats_get,
209 .stats_reset = eth_igbvf_stats_reset,
210 .vlan_filter_set = igbvf_vlan_filter_set,
211 .dev_infos_get = eth_igb_infos_get,
212 .rx_queue_setup = eth_igb_rx_queue_setup,
213 .rx_queue_release = eth_igb_rx_queue_release,
214 .tx_queue_setup = eth_igb_tx_queue_setup,
215 .tx_queue_release = eth_igb_tx_queue_release,
219 * Atomically reads the link status information from global
220 * structure rte_eth_dev.
223 * - Pointer to the structure rte_eth_dev to read from.
224 * - Pointer to the buffer to be saved with the link status.
227 * - On success, zero.
228 * - On failure, negative value.
231 rte_igb_dev_atomic_read_link_status(struct rte_eth_dev *dev,
232 struct rte_eth_link *link)
234 struct rte_eth_link *dst = link;
235 struct rte_eth_link *src = &(dev->data->dev_link);
237 if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
238 *(uint64_t *)src) == 0)
245 * Atomically writes the link status information into global
246 * structure rte_eth_dev.
249 * - Pointer to the structure rte_eth_dev to read from.
250 * - Pointer to the buffer to be saved with the link status.
253 * - On success, zero.
254 * - On failure, negative value.
257 rte_igb_dev_atomic_write_link_status(struct rte_eth_dev *dev,
258 struct rte_eth_link *link)
260 struct rte_eth_link *dst = &(dev->data->dev_link);
261 struct rte_eth_link *src = link;
263 if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
264 *(uint64_t *)src) == 0)
271 igb_intr_enable(struct rte_eth_dev *dev)
273 struct e1000_interrupt *intr =
274 E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
275 struct e1000_hw *hw =
276 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
278 E1000_WRITE_REG(hw, E1000_IMS, intr->mask);
279 E1000_WRITE_FLUSH(hw);
283 igb_intr_disable(struct e1000_hw *hw)
285 E1000_WRITE_REG(hw, E1000_IMC, ~0);
286 E1000_WRITE_FLUSH(hw);
289 static inline int32_t
290 igb_pf_reset_hw(struct e1000_hw *hw)
295 status = e1000_reset_hw(hw);
297 ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
298 /* Set PF Reset Done bit so PF/VF Mail Ops can work */
299 ctrl_ext |= E1000_CTRL_EXT_PFRSTD;
300 E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
301 E1000_WRITE_FLUSH(hw);
307 igb_identify_hardware(struct rte_eth_dev *dev)
309 struct e1000_hw *hw =
310 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
312 hw->vendor_id = dev->pci_dev->id.vendor_id;
313 hw->device_id = dev->pci_dev->id.device_id;
314 hw->subsystem_vendor_id = dev->pci_dev->id.subsystem_vendor_id;
315 hw->subsystem_device_id = dev->pci_dev->id.subsystem_device_id;
317 e1000_set_mac_type(hw);
319 /* need to check if it is a vf device below */
323 eth_igb_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
324 struct rte_eth_dev *eth_dev)
327 struct rte_pci_device *pci_dev;
328 struct e1000_hw *hw =
329 E1000_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
330 struct e1000_vfta * shadow_vfta =
331 E1000_DEV_PRIVATE_TO_VFTA(eth_dev->data->dev_private);
334 pci_dev = eth_dev->pci_dev;
335 eth_dev->dev_ops = ð_igb_ops;
336 eth_dev->rx_pkt_burst = ð_igb_recv_pkts;
337 eth_dev->tx_pkt_burst = ð_igb_xmit_pkts;
339 /* for secondary processes, we don't initialise any further as primary
340 * has already done this work. Only check we don't need a different
342 if (rte_eal_process_type() != RTE_PROC_PRIMARY){
343 if (eth_dev->data->scattered_rx)
344 eth_dev->rx_pkt_burst = ð_igb_recv_scattered_pkts;
348 hw->hw_addr= (void *)pci_dev->mem_resource[0].addr;
350 igb_identify_hardware(eth_dev);
351 if (e1000_setup_init_funcs(hw, TRUE) != E1000_SUCCESS) {
356 e1000_get_bus_info(hw);
359 hw->phy.autoneg_wait_to_complete = 0;
360 hw->phy.autoneg_advertised = E1000_ALL_SPEED_DUPLEX;
363 if (hw->phy.media_type == e1000_media_type_copper) {
364 hw->phy.mdix = 0; /* AUTO_ALL_MODES */
365 hw->phy.disable_polarity_correction = 0;
366 hw->phy.ms_type = e1000_ms_hw_default;
370 * Start from a known state, this is important in reading the nvm
375 /* Make sure we have a good EEPROM before we read from it */
376 if (e1000_validate_nvm_checksum(hw) < 0) {
378 * Some PCI-E parts fail the first check due to
379 * the link being in sleep state, call it again,
380 * if it fails a second time its a real issue.
382 if (e1000_validate_nvm_checksum(hw) < 0) {
383 PMD_INIT_LOG(ERR, "EEPROM checksum invalid");
389 /* Read the permanent MAC address out of the EEPROM */
390 if (e1000_read_mac_addr(hw) != 0) {
391 PMD_INIT_LOG(ERR, "EEPROM error while reading MAC address");
396 /* Allocate memory for storing MAC addresses */
397 eth_dev->data->mac_addrs = rte_zmalloc("e1000",
398 ETHER_ADDR_LEN * hw->mac.rar_entry_count, 0);
399 if (eth_dev->data->mac_addrs == NULL) {
400 PMD_INIT_LOG(ERR, "Failed to allocate %d bytes needed to "
401 "store MAC addresses",
402 ETHER_ADDR_LEN * hw->mac.rar_entry_count);
407 /* Copy the permanent MAC address */
408 ether_addr_copy((struct ether_addr *)hw->mac.addr, ð_dev->data->mac_addrs[0]);
410 /* initialize the vfta */
411 memset(shadow_vfta, 0, sizeof(*shadow_vfta));
413 /* Now initialize the hardware */
414 if (igb_hardware_init(hw) != 0) {
415 PMD_INIT_LOG(ERR, "Hardware initialization failed");
416 rte_free(eth_dev->data->mac_addrs);
417 eth_dev->data->mac_addrs = NULL;
421 hw->mac.get_link_status = 1;
423 /* Indicate SOL/IDER usage */
424 if (e1000_check_reset_block(hw) < 0) {
425 PMD_INIT_LOG(ERR, "PHY reset is blocked due to"
429 /* initialize PF if max_vfs not zero */
430 igb_pf_host_init(eth_dev);
432 ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
433 /* Set PF Reset Done bit so PF/VF Mail Ops can work */
434 ctrl_ext |= E1000_CTRL_EXT_PFRSTD;
435 E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
436 E1000_WRITE_FLUSH(hw);
438 PMD_INIT_LOG(INFO, "port_id %d vendorID=0x%x deviceID=0x%x\n",
439 eth_dev->data->port_id, pci_dev->id.vendor_id,
440 pci_dev->id.device_id);
442 rte_intr_callback_register(&(pci_dev->intr_handle),
443 eth_igb_interrupt_handler, (void *)eth_dev);
445 /* enable uio intr after callback register */
446 rte_intr_enable(&(pci_dev->intr_handle));
448 /* enable support intr */
449 igb_intr_enable(eth_dev);
454 igb_hw_control_release(hw);
460 * Virtual Function device init
463 eth_igbvf_dev_init(__attribute__((unused)) struct eth_driver *eth_drv,
464 struct rte_eth_dev *eth_dev)
466 struct rte_pci_device *pci_dev;
467 struct e1000_hw *hw =
468 E1000_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
471 PMD_INIT_LOG(DEBUG, "eth_igbvf_dev_init");
473 eth_dev->dev_ops = &igbvf_eth_dev_ops;
474 eth_dev->rx_pkt_burst = ð_igb_recv_pkts;
475 eth_dev->tx_pkt_burst = ð_igb_xmit_pkts;
477 /* for secondary processes, we don't initialise any further as primary
478 * has already done this work. Only check we don't need a different
480 if (rte_eal_process_type() != RTE_PROC_PRIMARY){
481 if (eth_dev->data->scattered_rx)
482 eth_dev->rx_pkt_burst = ð_igb_recv_scattered_pkts;
486 pci_dev = eth_dev->pci_dev;
488 hw->device_id = pci_dev->id.device_id;
489 hw->vendor_id = pci_dev->id.vendor_id;
490 hw->hw_addr = (void *)pci_dev->mem_resource[0].addr;
492 /* Initialize the shared code */
493 diag = e1000_setup_init_funcs(hw, TRUE);
495 PMD_INIT_LOG(ERR, "Shared code init failed for igbvf: %d",
500 /* init_mailbox_params */
501 hw->mbx.ops.init_params(hw);
503 /* Disable the interrupts for VF */
504 igbvf_intr_disable(hw);
506 diag = hw->mac.ops.reset_hw(hw);
508 /* Allocate memory for storing MAC addresses */
509 eth_dev->data->mac_addrs = rte_zmalloc("igbvf", ETHER_ADDR_LEN *
510 hw->mac.rar_entry_count, 0);
511 if (eth_dev->data->mac_addrs == NULL) {
513 "Failed to allocate %d bytes needed to store MAC "
515 ETHER_ADDR_LEN * hw->mac.rar_entry_count);
519 /* Copy the permanent MAC address */
520 ether_addr_copy((struct ether_addr *) hw->mac.perm_addr,
521 ð_dev->data->mac_addrs[0]);
523 PMD_INIT_LOG(DEBUG, "\nport %d vendorID=0x%x deviceID=0x%x "
525 eth_dev->data->port_id, pci_dev->id.vendor_id,
526 pci_dev->id.device_id,
532 static struct eth_driver rte_igb_pmd = {
534 .name = "rte_igb_pmd",
535 .id_table = pci_id_igb_map,
536 #ifdef RTE_EAL_UNBIND_PORTS
537 .drv_flags = RTE_PCI_DRV_NEED_IGB_UIO,
540 .eth_dev_init = eth_igb_dev_init,
541 .dev_private_size = sizeof(struct e1000_adapter),
545 * virtual function driver struct
547 static struct eth_driver rte_igbvf_pmd = {
549 .name = "rte_igbvf_pmd",
550 .id_table = pci_id_igbvf_map,
551 #ifdef RTE_EAL_UNBIND_PORTS
552 .drv_flags = RTE_PCI_DRV_NEED_IGB_UIO,
555 .eth_dev_init = eth_igbvf_dev_init,
556 .dev_private_size = sizeof(struct e1000_adapter),
560 rte_igb_pmd_init(void)
562 rte_eth_driver_register(&rte_igb_pmd);
567 * VF Driver initialization routine.
568 * Invoked one at EAL init time.
569 * Register itself as the [Virtual Poll Mode] Driver of PCI IGB devices.
572 rte_igbvf_pmd_init(void)
574 DEBUGFUNC("rte_igbvf_pmd_init");
576 rte_eth_driver_register(&rte_igbvf_pmd);
581 eth_igb_configure(struct rte_eth_dev *dev)
583 struct e1000_interrupt *intr =
584 E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
586 PMD_INIT_LOG(DEBUG, ">>");
588 intr->flags |= E1000_FLAG_NEED_LINK_UPDATE;
590 PMD_INIT_LOG(DEBUG, "<<");
596 eth_igb_start(struct rte_eth_dev *dev)
598 struct e1000_hw *hw =
599 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
603 PMD_INIT_LOG(DEBUG, ">>");
605 /* Power up the phy. Needed to make the link go Up */
606 e1000_power_up_phy(hw);
609 * Packet Buffer Allocation (PBA)
610 * Writing PBA sets the receive portion of the buffer
611 * the remainder is used for the transmit buffer.
613 if (hw->mac.type == e1000_82575) {
616 pba = E1000_PBA_32K; /* 32K for Rx, 16K for Tx */
617 E1000_WRITE_REG(hw, E1000_PBA, pba);
620 /* Put the address into the Receive Address Array */
621 e1000_rar_set(hw, hw->mac.addr, 0);
623 /* Initialize the hardware */
624 if (igb_hardware_init(hw)) {
625 PMD_INIT_LOG(ERR, "Unable to initialize the hardware");
629 E1000_WRITE_REG(hw, E1000_VET, ETHER_TYPE_VLAN);
631 ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
632 /* Set PF Reset Done bit so PF/VF Mail Ops can work */
633 ctrl_ext |= E1000_CTRL_EXT_PFRSTD;
634 E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
635 E1000_WRITE_FLUSH(hw);
637 /* configure PF module if SRIOV enabled */
638 igb_pf_host_configure(dev);
640 /* Configure for OS presence */
641 igb_init_manageability(hw);
643 eth_igb_tx_init(dev);
645 /* This can fail when allocating mbufs for descriptor rings */
646 ret = eth_igb_rx_init(dev);
648 PMD_INIT_LOG(ERR, "Unable to initialize RX hardware");
649 igb_dev_clear_queues(dev);
653 e1000_clear_hw_cntrs_base_generic(hw);
656 * VLAN Offload Settings
658 mask = ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK | \
659 ETH_VLAN_EXTEND_MASK;
660 eth_igb_vlan_offload_set(dev, mask);
663 * Configure the Interrupt Moderation register (EITR) with the maximum
664 * possible value (0xFFFF) to minimize "System Partial Write" issued by
665 * spurious [DMA] memory updates of RX and TX ring descriptors.
667 * With a EITR granularity of 2 microseconds in the 82576, only 7/8
668 * spurious memory updates per second should be expected.
669 * ((65535 * 2) / 1000.1000 ~= 0.131 second).
671 * Because interrupts are not used at all, the MSI-X is not activated
672 * and interrupt moderation is controlled by EITR[0].
674 * Note that having [almost] disabled memory updates of RX and TX ring
675 * descriptors through the Interrupt Moderation mechanism, memory
676 * updates of ring descriptors are now moderated by the configurable
677 * value of Write-Back Threshold registers.
679 if ((hw->mac.type == e1000_82576) || (hw->mac.type == e1000_82580) ||
680 (hw->mac.type == e1000_i350) || (hw->mac.type == e1000_i210)) {
683 /* Enable all RX & TX queues in the IVAR registers */
684 ivar = (uint32_t) ((E1000_IVAR_VALID << 16) | E1000_IVAR_VALID);
685 for (i = 0; i < 8; i++)
686 E1000_WRITE_REG_ARRAY(hw, E1000_IVAR0, i, ivar);
688 /* Configure EITR with the maximum possible value (0xFFFF) */
689 E1000_WRITE_REG(hw, E1000_EITR(0), 0xFFFF);
692 /* Setup link speed and duplex */
693 switch (dev->data->dev_conf.link_speed) {
694 case ETH_LINK_SPEED_AUTONEG:
695 if (dev->data->dev_conf.link_duplex == ETH_LINK_AUTONEG_DUPLEX)
696 hw->phy.autoneg_advertised = E1000_ALL_SPEED_DUPLEX;
697 else if (dev->data->dev_conf.link_duplex == ETH_LINK_HALF_DUPLEX)
698 hw->phy.autoneg_advertised = E1000_ALL_HALF_DUPLEX;
699 else if (dev->data->dev_conf.link_duplex == ETH_LINK_FULL_DUPLEX)
700 hw->phy.autoneg_advertised = E1000_ALL_FULL_DUPLEX;
702 goto error_invalid_config;
704 case ETH_LINK_SPEED_10:
705 if (dev->data->dev_conf.link_duplex == ETH_LINK_AUTONEG_DUPLEX)
706 hw->phy.autoneg_advertised = E1000_ALL_10_SPEED;
707 else if (dev->data->dev_conf.link_duplex == ETH_LINK_HALF_DUPLEX)
708 hw->phy.autoneg_advertised = ADVERTISE_10_HALF;
709 else if (dev->data->dev_conf.link_duplex == ETH_LINK_FULL_DUPLEX)
710 hw->phy.autoneg_advertised = ADVERTISE_10_FULL;
712 goto error_invalid_config;
714 case ETH_LINK_SPEED_100:
715 if (dev->data->dev_conf.link_duplex == ETH_LINK_AUTONEG_DUPLEX)
716 hw->phy.autoneg_advertised = E1000_ALL_100_SPEED;
717 else if (dev->data->dev_conf.link_duplex == ETH_LINK_HALF_DUPLEX)
718 hw->phy.autoneg_advertised = ADVERTISE_100_HALF;
719 else if (dev->data->dev_conf.link_duplex == ETH_LINK_FULL_DUPLEX)
720 hw->phy.autoneg_advertised = ADVERTISE_100_FULL;
722 goto error_invalid_config;
724 case ETH_LINK_SPEED_1000:
725 if ((dev->data->dev_conf.link_duplex == ETH_LINK_AUTONEG_DUPLEX) ||
726 (dev->data->dev_conf.link_duplex == ETH_LINK_FULL_DUPLEX))
727 hw->phy.autoneg_advertised = ADVERTISE_1000_FULL;
729 goto error_invalid_config;
731 case ETH_LINK_SPEED_10000:
733 goto error_invalid_config;
735 e1000_setup_link(hw);
737 /* check if lsc interrupt feature is enabled */
738 if (dev->data->dev_conf.intr_conf.lsc != 0)
739 ret = eth_igb_lsc_interrupt_setup(dev);
741 /* resume enabled intr since hw reset */
742 igb_intr_enable(dev);
744 PMD_INIT_LOG(DEBUG, "<<");
748 error_invalid_config:
749 PMD_INIT_LOG(ERR, "Invalid link_speed/link_duplex (%u/%u) for port %u\n",
750 dev->data->dev_conf.link_speed,
751 dev->data->dev_conf.link_duplex, dev->data->port_id);
752 igb_dev_clear_queues(dev);
756 /*********************************************************************
758 * This routine disables all traffic on the adapter by issuing a
759 * global reset on the MAC.
761 **********************************************************************/
763 eth_igb_stop(struct rte_eth_dev *dev)
765 struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
766 struct rte_eth_link link;
768 igb_intr_disable(hw);
770 E1000_WRITE_REG(hw, E1000_WUC, 0);
772 /* Set bit for Go Link disconnect */
773 if (hw->mac.type >= e1000_82580) {
776 phpm_reg = E1000_READ_REG(hw, E1000_82580_PHY_POWER_MGMT);
777 phpm_reg |= E1000_82580_PM_GO_LINKD;
778 E1000_WRITE_REG(hw, E1000_82580_PHY_POWER_MGMT, phpm_reg);
781 /* Power down the phy. Needed to make the link go Down */
782 e1000_power_down_phy(hw);
784 igb_dev_clear_queues(dev);
786 /* clear the recorded link status */
787 memset(&link, 0, sizeof(link));
788 rte_igb_dev_atomic_write_link_status(dev, &link);
792 eth_igb_close(struct rte_eth_dev *dev)
794 struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
795 struct rte_eth_link link;
798 e1000_phy_hw_reset(hw);
799 igb_release_manageability(hw);
800 igb_hw_control_release(hw);
802 /* Clear bit for Go Link disconnect */
803 if (hw->mac.type >= e1000_82580) {
806 phpm_reg = E1000_READ_REG(hw, E1000_82580_PHY_POWER_MGMT);
807 phpm_reg &= ~E1000_82580_PM_GO_LINKD;
808 E1000_WRITE_REG(hw, E1000_82580_PHY_POWER_MGMT, phpm_reg);
811 igb_dev_clear_queues(dev);
813 memset(&link, 0, sizeof(link));
814 rte_igb_dev_atomic_write_link_status(dev, &link);
818 igb_get_rx_buffer_size(struct e1000_hw *hw)
820 uint32_t rx_buf_size;
821 if (hw->mac.type == e1000_82576) {
822 rx_buf_size = (E1000_READ_REG(hw, E1000_RXPBS) & 0xffff) << 10;
823 } else if (hw->mac.type == e1000_82580 || hw->mac.type == e1000_i350) {
824 /* PBS needs to be translated according to a lookup table */
825 rx_buf_size = (E1000_READ_REG(hw, E1000_RXPBS) & 0xf);
826 rx_buf_size = (uint32_t) e1000_rxpbs_adjust_82580(rx_buf_size);
827 rx_buf_size = (rx_buf_size << 10);
828 } else if (hw->mac.type == e1000_i210) {
829 rx_buf_size = (E1000_READ_REG(hw, E1000_RXPBS) & 0x3f) << 10;
831 rx_buf_size = (E1000_READ_REG(hw, E1000_PBA) & 0xffff) << 10;
837 /*********************************************************************
839 * Initialize the hardware
841 **********************************************************************/
843 igb_hardware_init(struct e1000_hw *hw)
845 uint32_t rx_buf_size;
848 /* Let the firmware know the OS is in control */
849 igb_hw_control_acquire(hw);
852 * These parameters control the automatic generation (Tx) and
853 * response (Rx) to Ethernet PAUSE frames.
854 * - High water mark should allow for at least two standard size (1518)
855 * frames to be received after sending an XOFF.
856 * - Low water mark works best when it is very near the high water mark.
857 * This allows the receiver to restart by sending XON when it has
858 * drained a bit. Here we use an arbitary value of 1500 which will
859 * restart after one full frame is pulled from the buffer. There
860 * could be several smaller frames in the buffer and if so they will
861 * not trigger the XON until their total number reduces the buffer
863 * - The pause time is fairly large at 1000 x 512ns = 512 usec.
865 rx_buf_size = igb_get_rx_buffer_size(hw);
867 hw->fc.high_water = rx_buf_size - (ETHER_MAX_LEN * 2);
868 hw->fc.low_water = hw->fc.high_water - 1500;
869 hw->fc.pause_time = IGB_FC_PAUSE_TIME;
872 /* Set Flow control, use the tunable location if sane */
873 if ((igb_fc_setting != e1000_fc_none) && (igb_fc_setting < 4))
874 hw->fc.requested_mode = igb_fc_setting;
876 hw->fc.requested_mode = e1000_fc_none;
878 /* Issue a global reset */
880 E1000_WRITE_REG(hw, E1000_WUC, 0);
882 diag = e1000_init_hw(hw);
886 E1000_WRITE_REG(hw, E1000_VET, ETHER_TYPE_VLAN);
887 e1000_get_phy_info(hw);
888 e1000_check_for_link(hw);
893 /* This function is based on igb_update_stats_counters() in igb/if_igb.c */
895 eth_igb_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *rte_stats)
897 struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
898 struct e1000_hw_stats *stats =
899 E1000_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
902 if(hw->phy.media_type == e1000_media_type_copper ||
903 (E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU)) {
905 E1000_READ_REG(hw,E1000_SYMERRS);
906 stats->sec += E1000_READ_REG(hw, E1000_SEC);
909 stats->crcerrs += E1000_READ_REG(hw, E1000_CRCERRS);
910 stats->mpc += E1000_READ_REG(hw, E1000_MPC);
911 stats->scc += E1000_READ_REG(hw, E1000_SCC);
912 stats->ecol += E1000_READ_REG(hw, E1000_ECOL);
914 stats->mcc += E1000_READ_REG(hw, E1000_MCC);
915 stats->latecol += E1000_READ_REG(hw, E1000_LATECOL);
916 stats->colc += E1000_READ_REG(hw, E1000_COLC);
917 stats->dc += E1000_READ_REG(hw, E1000_DC);
918 stats->rlec += E1000_READ_REG(hw, E1000_RLEC);
919 stats->xonrxc += E1000_READ_REG(hw, E1000_XONRXC);
920 stats->xontxc += E1000_READ_REG(hw, E1000_XONTXC);
922 ** For watchdog management we need to know if we have been
923 ** paused during the last interval, so capture that here.
925 pause_frames = E1000_READ_REG(hw, E1000_XOFFRXC);
926 stats->xoffrxc += pause_frames;
927 stats->xofftxc += E1000_READ_REG(hw, E1000_XOFFTXC);
928 stats->fcruc += E1000_READ_REG(hw, E1000_FCRUC);
929 stats->prc64 += E1000_READ_REG(hw, E1000_PRC64);
930 stats->prc127 += E1000_READ_REG(hw, E1000_PRC127);
931 stats->prc255 += E1000_READ_REG(hw, E1000_PRC255);
932 stats->prc511 += E1000_READ_REG(hw, E1000_PRC511);
933 stats->prc1023 += E1000_READ_REG(hw, E1000_PRC1023);
934 stats->prc1522 += E1000_READ_REG(hw, E1000_PRC1522);
935 stats->gprc += E1000_READ_REG(hw, E1000_GPRC);
936 stats->bprc += E1000_READ_REG(hw, E1000_BPRC);
937 stats->mprc += E1000_READ_REG(hw, E1000_MPRC);
938 stats->gptc += E1000_READ_REG(hw, E1000_GPTC);
940 /* For the 64-bit byte counters the low dword must be read first. */
941 /* Both registers clear on the read of the high dword */
943 stats->gorc += E1000_READ_REG(hw, E1000_GORCL);
944 stats->gorc += ((uint64_t)E1000_READ_REG(hw, E1000_GORCH) << 32);
945 stats->gotc += E1000_READ_REG(hw, E1000_GOTCL);
946 stats->gotc += ((uint64_t)E1000_READ_REG(hw, E1000_GOTCH) << 32);
948 stats->rnbc += E1000_READ_REG(hw, E1000_RNBC);
949 stats->ruc += E1000_READ_REG(hw, E1000_RUC);
950 stats->rfc += E1000_READ_REG(hw, E1000_RFC);
951 stats->roc += E1000_READ_REG(hw, E1000_ROC);
952 stats->rjc += E1000_READ_REG(hw, E1000_RJC);
954 stats->tor += E1000_READ_REG(hw, E1000_TORH);
955 stats->tot += E1000_READ_REG(hw, E1000_TOTH);
957 stats->tpr += E1000_READ_REG(hw, E1000_TPR);
958 stats->tpt += E1000_READ_REG(hw, E1000_TPT);
959 stats->ptc64 += E1000_READ_REG(hw, E1000_PTC64);
960 stats->ptc127 += E1000_READ_REG(hw, E1000_PTC127);
961 stats->ptc255 += E1000_READ_REG(hw, E1000_PTC255);
962 stats->ptc511 += E1000_READ_REG(hw, E1000_PTC511);
963 stats->ptc1023 += E1000_READ_REG(hw, E1000_PTC1023);
964 stats->ptc1522 += E1000_READ_REG(hw, E1000_PTC1522);
965 stats->mptc += E1000_READ_REG(hw, E1000_MPTC);
966 stats->bptc += E1000_READ_REG(hw, E1000_BPTC);
968 /* Interrupt Counts */
970 stats->iac += E1000_READ_REG(hw, E1000_IAC);
971 stats->icrxptc += E1000_READ_REG(hw, E1000_ICRXPTC);
972 stats->icrxatc += E1000_READ_REG(hw, E1000_ICRXATC);
973 stats->ictxptc += E1000_READ_REG(hw, E1000_ICTXPTC);
974 stats->ictxatc += E1000_READ_REG(hw, E1000_ICTXATC);
975 stats->ictxqec += E1000_READ_REG(hw, E1000_ICTXQEC);
976 stats->ictxqmtc += E1000_READ_REG(hw, E1000_ICTXQMTC);
977 stats->icrxdmtc += E1000_READ_REG(hw, E1000_ICRXDMTC);
978 stats->icrxoc += E1000_READ_REG(hw, E1000_ICRXOC);
980 /* Host to Card Statistics */
982 stats->cbtmpc += E1000_READ_REG(hw, E1000_CBTMPC);
983 stats->htdpmc += E1000_READ_REG(hw, E1000_HTDPMC);
984 stats->cbrdpc += E1000_READ_REG(hw, E1000_CBRDPC);
985 stats->cbrmpc += E1000_READ_REG(hw, E1000_CBRMPC);
986 stats->rpthc += E1000_READ_REG(hw, E1000_RPTHC);
987 stats->hgptc += E1000_READ_REG(hw, E1000_HGPTC);
988 stats->htcbdpc += E1000_READ_REG(hw, E1000_HTCBDPC);
989 stats->hgorc += E1000_READ_REG(hw, E1000_HGORCL);
990 stats->hgorc += ((uint64_t)E1000_READ_REG(hw, E1000_HGORCH) << 32);
991 stats->hgotc += E1000_READ_REG(hw, E1000_HGOTCL);
992 stats->hgotc += ((uint64_t)E1000_READ_REG(hw, E1000_HGOTCH) << 32);
993 stats->lenerrs += E1000_READ_REG(hw, E1000_LENERRS);
994 stats->scvpc += E1000_READ_REG(hw, E1000_SCVPC);
995 stats->hrmpc += E1000_READ_REG(hw, E1000_HRMPC);
997 stats->algnerrc += E1000_READ_REG(hw, E1000_ALGNERRC);
998 stats->rxerrc += E1000_READ_REG(hw, E1000_RXERRC);
999 stats->tncrs += E1000_READ_REG(hw, E1000_TNCRS);
1000 stats->cexterr += E1000_READ_REG(hw, E1000_CEXTERR);
1001 stats->tsctc += E1000_READ_REG(hw, E1000_TSCTC);
1002 stats->tsctfc += E1000_READ_REG(hw, E1000_TSCTFC);
1004 if (rte_stats == NULL)
1008 rte_stats->ierrors = stats->rxerrc + stats->crcerrs + stats->algnerrc +
1009 stats->ruc + stats->roc + stats->mpc + stats->cexterr;
1012 rte_stats->oerrors = stats->ecol + stats->latecol;
1014 rte_stats->ipackets = stats->gprc;
1015 rte_stats->opackets = stats->gptc;
1016 rte_stats->ibytes = stats->gorc;
1017 rte_stats->obytes = stats->gotc;
1021 eth_igb_stats_reset(struct rte_eth_dev *dev)
1023 struct e1000_hw_stats *hw_stats =
1024 E1000_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
1026 /* HW registers are cleared on read */
1027 eth_igb_stats_get(dev, NULL);
1029 /* Reset software totals */
1030 memset(hw_stats, 0, sizeof(*hw_stats));
1034 eth_igbvf_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *rte_stats)
1036 struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1037 struct e1000_vf_stats *hw_stats = (struct e1000_vf_stats*)
1038 E1000_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
1040 /* Good Rx packets, include VF loopback */
1041 UPDATE_VF_STAT(E1000_VFGPRC,
1042 hw_stats->last_gprc, hw_stats->gprc);
1044 /* Good Rx octets, include VF loopback */
1045 UPDATE_VF_STAT(E1000_VFGORC,
1046 hw_stats->last_gorc, hw_stats->gorc);
1048 /* Good Tx packets, include VF loopback */
1049 UPDATE_VF_STAT(E1000_VFGPTC,
1050 hw_stats->last_gptc, hw_stats->gptc);
1052 /* Good Tx octets, include VF loopback */
1053 UPDATE_VF_STAT(E1000_VFGOTC,
1054 hw_stats->last_gotc, hw_stats->gotc);
1056 /* Rx Multicst packets */
1057 UPDATE_VF_STAT(E1000_VFMPRC,
1058 hw_stats->last_mprc, hw_stats->mprc);
1060 /* Good Rx loopback packets */
1061 UPDATE_VF_STAT(E1000_VFGPRLBC,
1062 hw_stats->last_gprlbc, hw_stats->gprlbc);
1064 /* Good Rx loopback octets */
1065 UPDATE_VF_STAT(E1000_VFGORLBC,
1066 hw_stats->last_gorlbc, hw_stats->gorlbc);
1068 /* Good Tx loopback packets */
1069 UPDATE_VF_STAT(E1000_VFGPTLBC,
1070 hw_stats->last_gptlbc, hw_stats->gptlbc);
1072 /* Good Tx loopback octets */
1073 UPDATE_VF_STAT(E1000_VFGOTLBC,
1074 hw_stats->last_gotlbc, hw_stats->gotlbc);
1076 if (rte_stats == NULL)
1079 memset(rte_stats, 0, sizeof(*rte_stats));
1080 rte_stats->ipackets = hw_stats->gprc;
1081 rte_stats->ibytes = hw_stats->gorc;
1082 rte_stats->opackets = hw_stats->gptc;
1083 rte_stats->obytes = hw_stats->gotc;
1084 rte_stats->imcasts = hw_stats->mprc;
1085 rte_stats->ilbpackets = hw_stats->gprlbc;
1086 rte_stats->ilbbytes = hw_stats->gorlbc;
1087 rte_stats->olbpackets = hw_stats->gptlbc;
1088 rte_stats->olbbytes = hw_stats->gotlbc;
1093 eth_igbvf_stats_reset(struct rte_eth_dev *dev)
1095 struct e1000_vf_stats *hw_stats = (struct e1000_vf_stats*)
1096 E1000_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
1098 /* Sync HW register to the last stats */
1099 eth_igbvf_stats_get(dev, NULL);
1101 /* reset HW current stats*/
1102 memset(&hw_stats->gprc, 0, sizeof(*hw_stats) -
1103 offsetof(struct e1000_vf_stats, gprc));
1108 eth_igb_infos_get(struct rte_eth_dev *dev,
1109 struct rte_eth_dev_info *dev_info)
1111 struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1113 dev_info->min_rx_bufsize = 256; /* See BSIZE field of RCTL register. */
1114 dev_info->max_rx_pktlen = 0x3FFF; /* See RLPML register. */
1115 dev_info->max_mac_addrs = hw->mac.rar_entry_count;
1117 switch (hw->mac.type) {
1119 dev_info->max_rx_queues = 4;
1120 dev_info->max_tx_queues = 4;
1124 dev_info->max_rx_queues = 16;
1125 dev_info->max_tx_queues = 16;
1129 dev_info->max_rx_queues = 8;
1130 dev_info->max_tx_queues = 8;
1134 dev_info->max_rx_queues = 8;
1135 dev_info->max_tx_queues = 8;
1139 dev_info->max_rx_queues = 4;
1140 dev_info->max_tx_queues = 4;
1144 dev_info->max_rx_queues = 2;
1145 dev_info->max_tx_queues = 2;
1148 case e1000_vfadapt_i350:
1149 dev_info->max_rx_queues = 1;
1150 dev_info->max_tx_queues = 1;
1154 /* Should not happen */
1155 dev_info->max_rx_queues = 0;
1156 dev_info->max_tx_queues = 0;
1160 /* return 0 means link status changed, -1 means not changed */
1162 eth_igb_link_update(struct rte_eth_dev *dev, int wait_to_complete)
1164 struct e1000_hw *hw =
1165 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1166 struct rte_eth_link link, old;
1167 int link_check, count;
1170 hw->mac.get_link_status = 1;
1172 /* possible wait-to-complete in up to 9 seconds */
1173 for (count = 0; count < IGB_LINK_UPDATE_CHECK_TIMEOUT; count ++) {
1174 /* Read the real link status */
1175 switch (hw->phy.media_type) {
1176 case e1000_media_type_copper:
1177 /* Do the work to read phy */
1178 e1000_check_for_link(hw);
1179 link_check = !hw->mac.get_link_status;
1182 case e1000_media_type_fiber:
1183 e1000_check_for_link(hw);
1184 link_check = (E1000_READ_REG(hw, E1000_STATUS) &
1188 case e1000_media_type_internal_serdes:
1189 e1000_check_for_link(hw);
1190 link_check = hw->mac.serdes_has_link;
1193 /* VF device is type_unknown */
1194 case e1000_media_type_unknown:
1195 eth_igbvf_link_update(hw);
1196 link_check = !hw->mac.get_link_status;
1202 if (link_check || wait_to_complete == 0)
1204 rte_delay_ms(IGB_LINK_UPDATE_CHECK_INTERVAL);
1206 memset(&link, 0, sizeof(link));
1207 rte_igb_dev_atomic_read_link_status(dev, &link);
1210 /* Now we check if a transition has happened */
1212 hw->mac.ops.get_link_up_info(hw, &link.link_speed,
1214 link.link_status = 1;
1215 } else if (!link_check) {
1216 link.link_speed = 0;
1217 link.link_duplex = 0;
1218 link.link_status = 0;
1220 rte_igb_dev_atomic_write_link_status(dev, &link);
1223 if (old.link_status == link.link_status)
1231 * igb_hw_control_acquire sets CTRL_EXT:DRV_LOAD bit.
1232 * For ASF and Pass Through versions of f/w this means
1233 * that the driver is loaded.
1236 igb_hw_control_acquire(struct e1000_hw *hw)
1240 /* Let firmware know the driver has taken over */
1241 ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
1242 E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
1246 * igb_hw_control_release resets CTRL_EXT:DRV_LOAD bit.
1247 * For ASF and Pass Through versions of f/w this means that the
1248 * driver is no longer loaded.
1251 igb_hw_control_release(struct e1000_hw *hw)
1255 /* Let firmware taken over control of h/w */
1256 ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
1257 E1000_WRITE_REG(hw, E1000_CTRL_EXT,
1258 ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
1262 * Bit of a misnomer, what this really means is
1263 * to enable OS management of the system... aka
1264 * to disable special hardware management features.
1267 igb_init_manageability(struct e1000_hw *hw)
1269 if (e1000_enable_mng_pass_thru(hw)) {
1270 uint32_t manc2h = E1000_READ_REG(hw, E1000_MANC2H);
1271 uint32_t manc = E1000_READ_REG(hw, E1000_MANC);
1273 /* disable hardware interception of ARP */
1274 manc &= ~(E1000_MANC_ARP_EN);
1276 /* enable receiving management packets to the host */
1277 manc |= E1000_MANC_EN_MNG2HOST;
1278 manc2h |= 1 << 5; /* Mng Port 623 */
1279 manc2h |= 1 << 6; /* Mng Port 664 */
1280 E1000_WRITE_REG(hw, E1000_MANC2H, manc2h);
1281 E1000_WRITE_REG(hw, E1000_MANC, manc);
1286 igb_release_manageability(struct e1000_hw *hw)
1288 if (e1000_enable_mng_pass_thru(hw)) {
1289 uint32_t manc = E1000_READ_REG(hw, E1000_MANC);
1291 manc |= E1000_MANC_ARP_EN;
1292 manc &= ~E1000_MANC_EN_MNG2HOST;
1294 E1000_WRITE_REG(hw, E1000_MANC, manc);
1299 eth_igb_promiscuous_enable(struct rte_eth_dev *dev)
1301 struct e1000_hw *hw =
1302 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1305 rctl = E1000_READ_REG(hw, E1000_RCTL);
1306 rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
1307 E1000_WRITE_REG(hw, E1000_RCTL, rctl);
1311 eth_igb_promiscuous_disable(struct rte_eth_dev *dev)
1313 struct e1000_hw *hw =
1314 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1317 rctl = E1000_READ_REG(hw, E1000_RCTL);
1318 rctl &= (~E1000_RCTL_UPE);
1319 if (dev->data->all_multicast == 1)
1320 rctl |= E1000_RCTL_MPE;
1322 rctl &= (~E1000_RCTL_MPE);
1323 E1000_WRITE_REG(hw, E1000_RCTL, rctl);
1327 eth_igb_allmulticast_enable(struct rte_eth_dev *dev)
1329 struct e1000_hw *hw =
1330 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1333 rctl = E1000_READ_REG(hw, E1000_RCTL);
1334 rctl |= E1000_RCTL_MPE;
1335 E1000_WRITE_REG(hw, E1000_RCTL, rctl);
1339 eth_igb_allmulticast_disable(struct rte_eth_dev *dev)
1341 struct e1000_hw *hw =
1342 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1345 if (dev->data->promiscuous == 1)
1346 return; /* must remain in all_multicast mode */
1347 rctl = E1000_READ_REG(hw, E1000_RCTL);
1348 rctl &= (~E1000_RCTL_MPE);
1349 E1000_WRITE_REG(hw, E1000_RCTL, rctl);
1353 eth_igb_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
1355 struct e1000_hw *hw =
1356 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1357 struct e1000_vfta * shadow_vfta =
1358 E1000_DEV_PRIVATE_TO_VFTA(dev->data->dev_private);
1363 vid_idx = (uint32_t) ((vlan_id >> E1000_VFTA_ENTRY_SHIFT) &
1364 E1000_VFTA_ENTRY_MASK);
1365 vid_bit = (uint32_t) (1 << (vlan_id & E1000_VFTA_ENTRY_BIT_SHIFT_MASK));
1366 vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, vid_idx);
1371 E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, vid_idx, vfta);
1373 /* update local VFTA copy */
1374 shadow_vfta->vfta[vid_idx] = vfta;
1380 eth_igb_vlan_tpid_set(struct rte_eth_dev *dev, uint16_t tpid)
1382 struct e1000_hw *hw =
1383 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1384 uint32_t reg = ETHER_TYPE_VLAN ;
1386 reg |= (tpid << 16);
1387 E1000_WRITE_REG(hw, E1000_VET, reg);
1391 igb_vlan_hw_filter_disable(struct rte_eth_dev *dev)
1393 struct e1000_hw *hw =
1394 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1397 /* Filter Table Disable */
1398 reg = E1000_READ_REG(hw, E1000_RCTL);
1399 reg &= ~E1000_RCTL_CFIEN;
1400 reg &= ~E1000_RCTL_VFE;
1401 E1000_WRITE_REG(hw, E1000_RCTL, reg);
1405 igb_vlan_hw_filter_enable(struct rte_eth_dev *dev)
1407 struct e1000_hw *hw =
1408 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1409 struct e1000_vfta * shadow_vfta =
1410 E1000_DEV_PRIVATE_TO_VFTA(dev->data->dev_private);
1414 /* Filter Table Enable, CFI not used for packet acceptance */
1415 reg = E1000_READ_REG(hw, E1000_RCTL);
1416 reg &= ~E1000_RCTL_CFIEN;
1417 reg |= E1000_RCTL_VFE;
1418 E1000_WRITE_REG(hw, E1000_RCTL, reg);
1420 /* restore VFTA table */
1421 for (i = 0; i < IGB_VFTA_SIZE; i++)
1422 E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, i, shadow_vfta->vfta[i]);
1426 igb_vlan_hw_strip_disable(struct rte_eth_dev *dev)
1428 struct e1000_hw *hw =
1429 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1432 /* VLAN Mode Disable */
1433 reg = E1000_READ_REG(hw, E1000_CTRL);
1434 reg &= ~E1000_CTRL_VME;
1435 E1000_WRITE_REG(hw, E1000_CTRL, reg);
1439 igb_vlan_hw_strip_enable(struct rte_eth_dev *dev)
1441 struct e1000_hw *hw =
1442 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1445 /* VLAN Mode Enable */
1446 reg = E1000_READ_REG(hw, E1000_CTRL);
1447 reg |= E1000_CTRL_VME;
1448 E1000_WRITE_REG(hw, E1000_CTRL, reg);
1452 igb_vlan_hw_extend_disable(struct rte_eth_dev *dev)
1454 struct e1000_hw *hw =
1455 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1458 /* CTRL_EXT: Extended VLAN */
1459 reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
1460 reg &= ~E1000_CTRL_EXT_EXTEND_VLAN;
1461 E1000_WRITE_REG(hw, E1000_CTRL_EXT, reg);
1463 /* Update maximum packet length */
1464 if (dev->data->dev_conf.rxmode.jumbo_frame == 1)
1465 E1000_WRITE_REG(hw, E1000_RLPML,
1466 dev->data->dev_conf.rxmode.max_rx_pkt_len +
1471 igb_vlan_hw_extend_enable(struct rte_eth_dev *dev)
1473 struct e1000_hw *hw =
1474 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1477 /* CTRL_EXT: Extended VLAN */
1478 reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
1479 reg |= E1000_CTRL_EXT_EXTEND_VLAN;
1480 E1000_WRITE_REG(hw, E1000_CTRL_EXT, reg);
1482 /* Update maximum packet length */
1483 if (dev->data->dev_conf.rxmode.jumbo_frame == 1)
1484 E1000_WRITE_REG(hw, E1000_RLPML,
1485 dev->data->dev_conf.rxmode.max_rx_pkt_len +
1490 eth_igb_vlan_offload_set(struct rte_eth_dev *dev, int mask)
1492 if(mask & ETH_VLAN_STRIP_MASK){
1493 if (dev->data->dev_conf.rxmode.hw_vlan_strip)
1494 igb_vlan_hw_strip_enable(dev);
1496 igb_vlan_hw_strip_disable(dev);
1499 if(mask & ETH_VLAN_FILTER_MASK){
1500 if (dev->data->dev_conf.rxmode.hw_vlan_filter)
1501 igb_vlan_hw_filter_enable(dev);
1503 igb_vlan_hw_filter_disable(dev);
1506 if(mask & ETH_VLAN_EXTEND_MASK){
1507 if (dev->data->dev_conf.rxmode.hw_vlan_extend)
1508 igb_vlan_hw_extend_enable(dev);
1510 igb_vlan_hw_extend_disable(dev);
1516 * It enables the interrupt mask and then enable the interrupt.
1519 * Pointer to struct rte_eth_dev.
1522 * - On success, zero.
1523 * - On failure, a negative value.
1526 eth_igb_lsc_interrupt_setup(struct rte_eth_dev *dev)
1528 struct e1000_interrupt *intr =
1529 E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
1531 intr->mask |= E1000_ICR_LSC;
1537 * It reads ICR and gets interrupt causes, check it and set a bit flag
1538 * to update link status.
1541 * Pointer to struct rte_eth_dev.
1544 * - On success, zero.
1545 * - On failure, a negative value.
1548 eth_igb_interrupt_get_status(struct rte_eth_dev *dev)
1551 struct e1000_hw *hw =
1552 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1553 struct e1000_interrupt *intr =
1554 E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
1556 igb_intr_disable(hw);
1558 /* read-on-clear nic registers here */
1559 icr = E1000_READ_REG(hw, E1000_ICR);
1562 if (icr & E1000_ICR_LSC) {
1563 intr->flags |= E1000_FLAG_NEED_LINK_UPDATE;
1566 if (icr & E1000_ICR_VMMB)
1567 intr->flags |= E1000_FLAG_MAILBOX;
1573 * It executes link_update after knowing an interrupt is prsent.
1576 * Pointer to struct rte_eth_dev.
1579 * - On success, zero.
1580 * - On failure, a negative value.
1583 eth_igb_interrupt_action(struct rte_eth_dev *dev)
1585 struct e1000_hw *hw =
1586 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1587 struct e1000_interrupt *intr =
1588 E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
1589 uint32_t tctl, rctl;
1590 struct rte_eth_link link;
1593 if (intr->flags & E1000_FLAG_MAILBOX) {
1594 igb_pf_mbx_process(dev);
1595 intr->flags &= ~E1000_FLAG_MAILBOX;
1598 igb_intr_enable(dev);
1599 rte_intr_enable(&(dev->pci_dev->intr_handle));
1601 if (intr->flags & E1000_FLAG_NEED_LINK_UPDATE) {
1602 intr->flags &= ~E1000_FLAG_NEED_LINK_UPDATE;
1604 /* set get_link_status to check register later */
1605 hw->mac.get_link_status = 1;
1606 ret = eth_igb_link_update(dev, 0);
1608 /* check if link has changed */
1612 memset(&link, 0, sizeof(link));
1613 rte_igb_dev_atomic_read_link_status(dev, &link);
1614 if (link.link_status) {
1616 " Port %d: Link Up - speed %u Mbps - %s\n",
1617 dev->data->port_id, (unsigned)link.link_speed,
1618 link.link_duplex == ETH_LINK_FULL_DUPLEX ?
1619 "full-duplex" : "half-duplex");
1621 PMD_INIT_LOG(INFO, " Port %d: Link Down\n",
1622 dev->data->port_id);
1624 PMD_INIT_LOG(INFO, "PCI Address: %04d:%02d:%02d:%d",
1625 dev->pci_dev->addr.domain,
1626 dev->pci_dev->addr.bus,
1627 dev->pci_dev->addr.devid,
1628 dev->pci_dev->addr.function);
1629 tctl = E1000_READ_REG(hw, E1000_TCTL);
1630 rctl = E1000_READ_REG(hw, E1000_RCTL);
1631 if (link.link_status) {
1633 tctl |= E1000_TCTL_EN;
1634 rctl |= E1000_RCTL_EN;
1637 tctl &= ~E1000_TCTL_EN;
1638 rctl &= ~E1000_RCTL_EN;
1640 E1000_WRITE_REG(hw, E1000_TCTL, tctl);
1641 E1000_WRITE_REG(hw, E1000_RCTL, rctl);
1642 E1000_WRITE_FLUSH(hw);
1643 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC);
1650 * Interrupt handler which shall be registered at first.
1653 * Pointer to interrupt handle.
1655 * The address of parameter (struct rte_eth_dev *) regsitered before.
1661 eth_igb_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
1664 struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
1666 eth_igb_interrupt_get_status(dev);
1667 eth_igb_interrupt_action(dev);
1671 eth_igb_led_on(struct rte_eth_dev *dev)
1673 struct e1000_hw *hw;
1675 hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1676 return (e1000_led_on(hw) == E1000_SUCCESS ? 0 : -ENOTSUP);
1680 eth_igb_led_off(struct rte_eth_dev *dev)
1682 struct e1000_hw *hw;
1684 hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1685 return (e1000_led_off(hw) == E1000_SUCCESS ? 0 : -ENOTSUP);
1689 eth_igb_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
1691 struct e1000_hw *hw;
1693 enum e1000_fc_mode rte_fcmode_2_e1000_fcmode[] = {
1699 uint32_t rx_buf_size;
1700 uint32_t max_high_water;
1702 hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1703 rx_buf_size = igb_get_rx_buffer_size(hw);
1704 PMD_INIT_LOG(DEBUG, "Rx packet buffer size = 0x%x \n", rx_buf_size);
1706 /* At least reserve one Ethernet frame for watermark */
1707 max_high_water = rx_buf_size - ETHER_MAX_LEN;
1708 if ((fc_conf->high_water > max_high_water) ||
1709 (fc_conf->high_water < fc_conf->low_water)) {
1710 PMD_INIT_LOG(ERR, "e1000 incorrect high/low water value \n");
1711 PMD_INIT_LOG(ERR, "high water must <= 0x%x \n", max_high_water);
1715 hw->fc.requested_mode = rte_fcmode_2_e1000_fcmode[fc_conf->mode];
1716 hw->fc.pause_time = fc_conf->pause_time;
1717 hw->fc.high_water = fc_conf->high_water;
1718 hw->fc.low_water = fc_conf->low_water;
1719 hw->fc.send_xon = fc_conf->send_xon;
1721 err = e1000_setup_link_generic(hw);
1722 if (err == E1000_SUCCESS) {
1726 PMD_INIT_LOG(ERR, "e1000_setup_link_generic = 0x%x \n", err);
1730 #define E1000_RAH_POOLSEL_SHIFT (18)
1732 eth_igb_rar_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
1733 uint32_t index, __rte_unused uint32_t pool)
1735 struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1738 e1000_rar_set(hw, mac_addr->addr_bytes, index);
1739 rah = E1000_READ_REG(hw, E1000_RAH(index));
1740 rah |= (0x1 << (E1000_RAH_POOLSEL_SHIFT + pool));
1741 E1000_WRITE_REG(hw, E1000_RAH(index), rah);
1745 eth_igb_rar_clear(struct rte_eth_dev *dev, uint32_t index)
1747 uint8_t addr[ETHER_ADDR_LEN];
1748 struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1750 memset(addr, 0, sizeof(addr));
1752 e1000_rar_set(hw, addr, index);
1756 * Virtual Function operations
1759 igbvf_intr_disable(struct e1000_hw *hw)
1761 PMD_INIT_LOG(DEBUG, "igbvf_intr_disable");
1763 /* Clear interrupt mask to stop from interrupts being generated */
1764 E1000_WRITE_REG(hw, E1000_EIMC, 0xFFFF);
1766 E1000_WRITE_FLUSH(hw);
1770 igbvf_stop_adapter(struct rte_eth_dev *dev)
1774 struct rte_eth_dev_info dev_info;
1775 struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1777 memset(&dev_info, 0, sizeof(dev_info));
1778 eth_igb_infos_get(dev, &dev_info);
1780 /* Clear interrupt mask to stop from interrupts being generated */
1781 igbvf_intr_disable(hw);
1783 /* Clear any pending interrupts, flush previous writes */
1784 E1000_READ_REG(hw, E1000_EICR);
1786 /* Disable the transmit unit. Each queue must be disabled. */
1787 for (i = 0; i < dev_info.max_tx_queues; i++)
1788 E1000_WRITE_REG(hw, E1000_TXDCTL(i), E1000_TXDCTL_SWFLSH);
1790 /* Disable the receive unit by stopping each queue */
1791 for (i = 0; i < dev_info.max_rx_queues; i++) {
1792 reg_val = E1000_READ_REG(hw, E1000_RXDCTL(i));
1793 reg_val &= ~E1000_RXDCTL_QUEUE_ENABLE;
1794 E1000_WRITE_REG(hw, E1000_RXDCTL(i), reg_val);
1795 while (E1000_READ_REG(hw, E1000_RXDCTL(i)) & E1000_RXDCTL_QUEUE_ENABLE)
1799 /* flush all queues disables */
1800 E1000_WRITE_FLUSH(hw);
1804 static int eth_igbvf_link_update(struct e1000_hw *hw)
1806 struct e1000_mbx_info *mbx = &hw->mbx;
1807 struct e1000_mac_info *mac = &hw->mac;
1808 int ret_val = E1000_SUCCESS;
1810 PMD_INIT_LOG(DEBUG, "e1000_check_for_link_vf");
1813 * We only want to run this if there has been a rst asserted.
1814 * in this case that could mean a link change, device reset,
1815 * or a virtual function reset
1818 /* If we were hit with a reset or timeout drop the link */
1819 if (!e1000_check_for_rst(hw, 0) || !mbx->timeout)
1820 mac->get_link_status = TRUE;
1822 if (!mac->get_link_status)
1825 /* if link status is down no point in checking to see if pf is up */
1826 if (!(E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU))
1829 /* if we passed all the tests above then the link is up and we no
1830 * longer need to check for link */
1831 mac->get_link_status = FALSE;
1839 igbvf_dev_configure(struct rte_eth_dev *dev)
1841 struct rte_eth_conf* conf = &dev->data->dev_conf;
1843 PMD_INIT_LOG(DEBUG, "\nConfigured Virtual Function port id: %d\n",
1844 dev->data->port_id);
1847 * VF has no ability to enable/disable HW CRC
1848 * Keep the persistent behavior the same as Host PF
1850 #ifndef RTE_LIBRTE_E1000_PF_DISABLE_STRIP_CRC
1851 if (!conf->rxmode.hw_strip_crc) {
1852 PMD_INIT_LOG(INFO, "VF can't disable HW CRC Strip\n");
1853 conf->rxmode.hw_strip_crc = 1;
1856 if (conf->rxmode.hw_strip_crc) {
1857 PMD_INIT_LOG(INFO, "VF can't enable HW CRC Strip\n");
1858 conf->rxmode.hw_strip_crc = 0;
1866 igbvf_dev_start(struct rte_eth_dev *dev)
1868 struct e1000_hw *hw =
1869 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1872 PMD_INIT_LOG(DEBUG, "igbvf_dev_start");
1874 hw->mac.ops.reset_hw(hw);
1877 igbvf_set_vfta_all(dev,1);
1879 eth_igbvf_tx_init(dev);
1881 /* This can fail when allocating mbufs for descriptor rings */
1882 ret = eth_igbvf_rx_init(dev);
1884 PMD_INIT_LOG(ERR, "Unable to initialize RX hardware");
1885 igb_dev_clear_queues(dev);
1893 igbvf_dev_stop(struct rte_eth_dev *dev)
1895 PMD_INIT_LOG(DEBUG, "igbvf_dev_stop");
1897 igbvf_stop_adapter(dev);
1900 * Clear what we set, but we still keep shadow_vfta to
1901 * restore after device starts
1903 igbvf_set_vfta_all(dev,0);
1905 igb_dev_clear_queues(dev);
1909 igbvf_dev_close(struct rte_eth_dev *dev)
1911 struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1913 PMD_INIT_LOG(DEBUG, "igbvf_dev_close");
1917 igbvf_dev_stop(dev);
1920 static int igbvf_set_vfta(struct e1000_hw *hw, uint16_t vid, bool on)
1922 struct e1000_mbx_info *mbx = &hw->mbx;
1925 /* After set vlan, vlan strip will also be enabled in igb driver*/
1926 msgbuf[0] = E1000_VF_SET_VLAN;
1928 /* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
1930 msgbuf[0] |= E1000_VF_SET_VLAN_ADD;
1932 return (mbx->ops.write_posted(hw, msgbuf, 2, 0));
1935 static void igbvf_set_vfta_all(struct rte_eth_dev *dev, bool on)
1937 struct e1000_hw *hw =
1938 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1939 struct e1000_vfta * shadow_vfta =
1940 E1000_DEV_PRIVATE_TO_VFTA(dev->data->dev_private);
1941 int i = 0, j = 0, vfta = 0, mask = 1;
1943 for (i = 0; i < IGB_VFTA_SIZE; i++){
1944 vfta = shadow_vfta->vfta[i];
1947 for (j = 0; j < 32; j++){
1950 (uint16_t)((i<<5)+j), on);
1959 igbvf_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
1961 struct e1000_hw *hw =
1962 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1963 struct e1000_vfta * shadow_vfta =
1964 E1000_DEV_PRIVATE_TO_VFTA(dev->data->dev_private);
1965 uint32_t vid_idx = 0;
1966 uint32_t vid_bit = 0;
1969 PMD_INIT_LOG(DEBUG, "igbvf_vlan_filter_set");
1971 /*vind is not used in VF driver, set to 0, check ixgbe_set_vfta_vf*/
1972 ret = igbvf_set_vfta(hw, vlan_id, !!on);
1974 PMD_INIT_LOG(ERR, "Unable to set VF vlan");
1977 vid_idx = (uint32_t) ((vlan_id >> 5) & 0x7F);
1978 vid_bit = (uint32_t) (1 << (vlan_id & 0x1F));
1980 /*Save what we set and retore it after device reset*/
1982 shadow_vfta->vfta[vid_idx] |= vid_bit;
1984 shadow_vfta->vfta[vid_idx] &= ~vid_bit;
1990 eth_igb_rss_reta_update(struct rte_eth_dev *dev,
1991 struct rte_eth_rss_reta *reta_conf)
1995 struct e1000_hw *hw =
1996 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1999 * Update Redirection Table RETA[n],n=0...31,The redirection table has
2000 * 128-entries in 32 registers
2002 for(i = 0; i < ETH_RSS_RETA_NUM_ENTRIES; i += 4) {
2003 if (i < ETH_RSS_RETA_NUM_ENTRIES/2)
2004 mask = (uint8_t)((reta_conf->mask_lo >> i) & 0xF);
2006 mask = (uint8_t)((reta_conf->mask_hi >>
2007 (i - ETH_RSS_RETA_NUM_ENTRIES/2)) & 0xF);
2010 /* If all 4 entries were set,don't need read RETA register */
2012 reta = E1000_READ_REG(hw,E1000_RETA(i >> 2));
2014 for (j = 0; j < 4; j++) {
2015 if (mask & (0x1 << j)) {
2017 reta &= ~(0xFF << 8 * j);
2018 reta |= reta_conf->reta[i + j] << 8 * j;
2021 E1000_WRITE_REG(hw, E1000_RETA(i >> 2),reta);
2029 eth_igb_rss_reta_query(struct rte_eth_dev *dev,
2030 struct rte_eth_rss_reta *reta_conf)
2034 struct e1000_hw *hw =
2035 E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2038 * Read Redirection Table RETA[n],n=0...31,The redirection table has
2039 * 128-entries in 32 registers
2041 for(i = 0; i < ETH_RSS_RETA_NUM_ENTRIES; i += 4) {
2042 if (i < ETH_RSS_RETA_NUM_ENTRIES/2)
2043 mask = (uint8_t)((reta_conf->mask_lo >> i) & 0xF);
2045 mask = (uint8_t)((reta_conf->mask_hi >>
2046 (i - ETH_RSS_RETA_NUM_ENTRIES/2)) & 0xF);
2049 reta = E1000_READ_REG(hw,E1000_RETA(i >> 2));
2050 for (j = 0; j < 4; j++) {
2051 if (mask & (0x1 << j))
2052 reta_conf->reta[i + j] =
2053 (uint8_t)((reta >> 8 * j) & 0xFF);