1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2016 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
32 #include <linux/types.h>
33 #include <linux/errno.h>
34 #include <linux/module.h>
35 #include <linux/pci.h>
36 #include <linux/aer.h>
37 #include <linux/netdevice.h>
38 #include <linux/ioport.h>
39 #include <linux/iommu.h>
40 #include <linux/slab.h>
41 #include <linux/list.h>
42 #include <linux/hashtable.h>
43 #include <linux/string.h>
46 #include <linux/sctp.h>
47 #include <linux/pkt_sched.h>
48 #include <linux/ipv6.h>
49 #include <net/checksum.h>
50 #include <net/ip6_checksum.h>
51 #include <linux/ethtool.h>
52 #include <linux/if_vlan.h>
53 #include <linux/if_bridge.h>
54 #include <linux/clocksource.h>
55 #include <linux/net_tstamp.h>
56 #include <linux/ptp_clock_kernel.h>
57 #include "i40e_type.h"
58 #include "i40e_prototype.h"
60 #include "i40e_fcoe.h"
62 #include "i40e_client.h"
63 #include "i40e_virtchnl.h"
64 #include "i40e_virtchnl_pf.h"
65 #include "i40e_txrx.h"
68 /* Useful i40e defaults */
69 #define I40E_MAX_VEB 16
71 #define I40E_MAX_NUM_DESCRIPTORS 4096
72 #define I40E_MAX_CSR_SPACE (4 * 1024 * 1024 - 64 * 1024)
73 #define I40E_DEFAULT_NUM_DESCRIPTORS 512
74 #define I40E_REQ_DESCRIPTOR_MULTIPLE 32
75 #define I40E_MIN_NUM_DESCRIPTORS 64
76 #define I40E_MIN_MSIX 2
77 #define I40E_DEFAULT_NUM_VMDQ_VSI 8 /* max 256 VSIs */
78 #define I40E_MIN_VSI_ALLOC 83 /* LAN, ATR, FCOE, 64 VF */
80 #define i40e_default_queues_per_vmdq(pf) \
81 (((pf)->flags & I40E_FLAG_RSS_AQ_CAPABLE) ? 4 : 1)
82 #define I40E_DEFAULT_QUEUES_PER_VF 4
83 #define I40E_DEFAULT_QUEUES_PER_TC 1 /* should be a power of 2 */
84 #define i40e_pf_get_max_q_per_tc(pf) \
85 (((pf)->flags & I40E_FLAG_128_QP_RSS_CAPABLE) ? 128 : 64)
86 #define I40E_FDIR_RING 0
87 #define I40E_FDIR_RING_COUNT 32
89 #define I40E_DEFAULT_FCOE 8 /* default number of QPs for FCoE */
90 #define I40E_MINIMUM_FCOE 1 /* minimum number of QPs for FCoE */
91 #endif /* I40E_FCOE */
92 #define I40E_MAX_AQ_BUF_SIZE 4096
93 #define I40E_AQ_LEN 256
94 #define I40E_AQ_WORK_LIMIT 66 /* max number of VFs + a little */
95 #define I40E_MAX_USER_PRIORITY 8
96 #define I40E_DEFAULT_TRAFFIC_CLASS BIT(0)
97 #define I40E_DEFAULT_MSG_ENABLE 4
98 #define I40E_QUEUE_WAIT_RETRY_LIMIT 10
99 #define I40E_INT_NAME_STR_LEN (IFNAMSIZ + 16)
101 /* Ethtool Private Flags */
102 #define I40E_PRIV_FLAGS_MFP_FLAG BIT(0)
103 #define I40E_PRIV_FLAGS_LINKPOLL_FLAG BIT(1)
104 #define I40E_PRIV_FLAGS_FD_ATR BIT(2)
105 #define I40E_PRIV_FLAGS_VEB_STATS BIT(3)
106 #define I40E_PRIV_FLAGS_HW_ATR_EVICT BIT(4)
107 #define I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT BIT(5)
109 #define I40E_NVM_VERSION_LO_SHIFT 0
110 #define I40E_NVM_VERSION_LO_MASK (0xff << I40E_NVM_VERSION_LO_SHIFT)
111 #define I40E_NVM_VERSION_HI_SHIFT 12
112 #define I40E_NVM_VERSION_HI_MASK (0xf << I40E_NVM_VERSION_HI_SHIFT)
113 #define I40E_OEM_VER_BUILD_MASK 0xffff
114 #define I40E_OEM_VER_PATCH_MASK 0xff
115 #define I40E_OEM_VER_BUILD_SHIFT 8
116 #define I40E_OEM_VER_SHIFT 24
117 #define I40E_PHY_DEBUG_ALL \
118 (I40E_AQ_PHY_DEBUG_DISABLE_LINK_FW | \
119 I40E_AQ_PHY_DEBUG_DISABLE_ALL_LINK_FW)
121 /* The values in here are decimal coded as hex as is the case in the NVM map*/
122 #define I40E_CURRENT_NVM_VERSION_HI 0x2
123 #define I40E_CURRENT_NVM_VERSION_LO 0x40
125 #define I40E_RX_DESC(R, i) \
126 (&(((union i40e_32byte_rx_desc *)((R)->desc))[i]))
127 #define I40E_TX_DESC(R, i) \
128 (&(((struct i40e_tx_desc *)((R)->desc))[i]))
129 #define I40E_TX_CTXTDESC(R, i) \
130 (&(((struct i40e_tx_context_desc *)((R)->desc))[i]))
131 #define I40E_TX_FDIRDESC(R, i) \
132 (&(((struct i40e_filter_program_desc *)((R)->desc))[i]))
134 /* default to trying for four seconds */
135 #define I40E_TRY_LINK_TIMEOUT (4 * HZ)
137 /* driver state flags */
143 __I40E_NEEDS_RESTART,
144 __I40E_SERVICE_SCHED,
145 __I40E_ADMINQ_EVENT_PENDING,
146 __I40E_MDD_EVENT_PENDING,
147 __I40E_VFLR_EVENT_PENDING,
148 __I40E_RESET_RECOVERY_PENDING,
149 __I40E_RESET_INTR_RECEIVED,
150 __I40E_REINIT_REQUESTED,
151 __I40E_PF_RESET_REQUESTED,
152 __I40E_CORE_RESET_REQUESTED,
153 __I40E_GLOBAL_RESET_REQUESTED,
154 __I40E_EMP_RESET_REQUESTED,
155 __I40E_EMP_RESET_INTR_RECEIVED,
156 __I40E_FILTER_OVERFLOW_PROMISC,
158 __I40E_PTP_TX_IN_PROGRESS,
160 __I40E_DOWN_REQUESTED,
161 __I40E_FD_FLUSH_REQUESTED,
163 __I40E_PORT_TX_SUSPENDED,
167 enum i40e_interrupt_policy {
168 I40E_INTERRUPT_BEST_CASE,
169 I40E_INTERRUPT_MEDIUM,
170 I40E_INTERRUPT_LOWEST
173 struct i40e_lump_tracking {
177 #define I40E_PILE_VALID_BIT 0x8000
178 #define I40E_IWARP_IRQ_PILE_ID (I40E_PILE_VALID_BIT - 2)
181 #define I40E_DEFAULT_ATR_SAMPLE_RATE 20
182 #define I40E_FDIR_MAX_RAW_PACKET_SIZE 512
183 #define I40E_FDIR_BUFFER_FULL_MARGIN 10
184 #define I40E_FDIR_BUFFER_HEAD_ROOM 32
185 #define I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR (I40E_FDIR_BUFFER_HEAD_ROOM * 4)
187 #define I40E_HKEY_ARRAY_SIZE ((I40E_PFQF_HKEY_MAX_INDEX + 1) * 4)
188 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
189 #define I40E_VF_HLUT_ARRAY_SIZE ((I40E_VFQF_HLUT1_MAX_INDEX + 1) * 4)
191 enum i40e_fd_stat_idx {
194 I40E_FD_STAT_ATR_TUNNEL,
195 I40E_FD_STAT_PF_COUNT
197 #define I40E_FD_STAT_PF_IDX(pf_id) ((pf_id) * I40E_FD_STAT_PF_COUNT)
198 #define I40E_FD_ATR_STAT_IDX(pf_id) \
199 (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR)
200 #define I40E_FD_SB_STAT_IDX(pf_id) \
201 (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_SB)
202 #define I40E_FD_ATR_TUNNEL_STAT_IDX(pf_id) \
203 (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR_TUNNEL)
205 /* The following structure contains the data parsed from the user-defined
206 * field of the ethtool_rx_flow_spec structure.
208 struct i40e_rx_flow_userdef {
214 struct i40e_fdir_filter {
215 struct hlist_node fdir_node;
216 /* filter ipnut set */
219 /* TX packet view of src and dst */
236 #define I40E_ETH_P_LLDP 0x88cc
238 #define I40E_DCB_PRIO_TYPE_STRICT 0
239 #define I40E_DCB_PRIO_TYPE_ETS 1
240 #define I40E_DCB_STRICT_PRIO_CREDITS 127
241 /* DCB per TC information data structure */
242 struct i40e_tc_info {
243 u16 qoffset; /* Queue offset from base queue */
244 u16 qcount; /* Total Queues */
245 u8 netdev_tc; /* Netdev TC index if netdev associated */
248 /* TC configuration data structure */
249 struct i40e_tc_configuration {
250 u8 numtc; /* Total number of enabled TCs */
251 u8 enabled_tc; /* TC map */
252 struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS];
255 struct i40e_udp_port_config {
256 /* AdminQ command interface expects port number in Host byte order */
261 /* struct that defines the Ethernet device */
263 struct pci_dev *pdev;
266 struct msix_entry *msix_entries;
267 bool fc_autoneg_status;
270 u16 num_vmdq_vsis; /* num vmdq vsis this PF has set up */
271 u16 num_vmdq_qps; /* num queue pairs per vmdq pool */
272 u16 num_vmdq_msix; /* num queue vectors per vmdq pool */
273 u16 num_req_vfs; /* num VFs requested for this VF */
274 u16 num_vf_qps; /* num queue pairs per VF */
276 u16 num_fcoe_qps; /* num fcoe queues this PF has set up */
277 u16 num_fcoe_msix; /* num queue vectors per fcoe pool */
278 #endif /* I40E_FCOE */
279 u16 num_lan_qps; /* num lan queues this PF has set up */
280 u16 num_lan_msix; /* num queue vectors for the base PF vsi */
281 u16 num_fdsb_msix; /* num queue vectors for sideband Fdir */
282 u16 num_iwarp_msix; /* num of iwarp vectors for this PF */
283 int iwarp_base_vector;
284 int queues_left; /* queues left unclaimed */
285 u16 alloc_rss_size; /* allocated RSS queues */
286 u16 rss_size_max; /* HW defined max RSS queues */
287 u16 fdir_pf_filter_count; /* num of guaranteed filters for this PF */
288 u16 num_alloc_vsi; /* num VSIs this driver supports */
292 struct hlist_head fdir_filter_list;
293 u16 fdir_pf_active_filters;
294 unsigned long fd_flush_timestamp;
299 /* Book-keeping of side-band filter count per flow-type.
300 * This is used to detect and handle input set changes for
301 * respective flow-type.
303 u16 fd_tcp4_filter_cnt;
304 u16 fd_udp4_filter_cnt;
305 u16 fd_ip4_filter_cnt;
307 struct i40e_udp_port_config udp_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS];
308 u16 pending_udp_bitmap;
310 enum i40e_interrupt_policy int_policy;
314 char int_name[I40E_INT_NAME_STR_LEN];
315 u16 adminq_work_limit; /* num of admin receive queue desc to process */
316 unsigned long service_timer_period;
317 unsigned long service_timer_previous;
318 struct timer_list service_timer;
319 struct work_struct service_task;
322 #define I40E_FLAG_RX_CSUM_ENABLED BIT_ULL(1)
323 #define I40E_FLAG_MSI_ENABLED BIT_ULL(2)
324 #define I40E_FLAG_MSIX_ENABLED BIT_ULL(3)
325 #define I40E_FLAG_RSS_ENABLED BIT_ULL(6)
326 #define I40E_FLAG_VMDQ_ENABLED BIT_ULL(7)
327 #define I40E_FLAG_FDIR_REQUIRES_REINIT BIT_ULL(8)
328 #define I40E_FLAG_NEED_LINK_UPDATE BIT_ULL(9)
329 #define I40E_FLAG_IWARP_ENABLED BIT_ULL(10)
331 #define I40E_FLAG_FCOE_ENABLED BIT_ULL(11)
332 #endif /* I40E_FCOE */
333 #define I40E_FLAG_CLEAN_ADMINQ BIT_ULL(14)
334 #define I40E_FLAG_FILTER_SYNC BIT_ULL(15)
335 #define I40E_FLAG_SERVICE_CLIENT_REQUESTED BIT_ULL(16)
336 #define I40E_FLAG_PROCESS_MDD_EVENT BIT_ULL(17)
337 #define I40E_FLAG_PROCESS_VFLR_EVENT BIT_ULL(18)
338 #define I40E_FLAG_SRIOV_ENABLED BIT_ULL(19)
339 #define I40E_FLAG_DCB_ENABLED BIT_ULL(20)
340 #define I40E_FLAG_FD_SB_ENABLED BIT_ULL(21)
341 #define I40E_FLAG_FD_ATR_ENABLED BIT_ULL(22)
342 #define I40E_FLAG_PTP BIT_ULL(25)
343 #define I40E_FLAG_MFP_ENABLED BIT_ULL(26)
344 #define I40E_FLAG_UDP_FILTER_SYNC BIT_ULL(27)
345 #define I40E_FLAG_PORT_ID_VALID BIT_ULL(28)
346 #define I40E_FLAG_DCB_CAPABLE BIT_ULL(29)
347 #define I40E_FLAG_RSS_AQ_CAPABLE BIT_ULL(31)
348 #define I40E_FLAG_HW_ATR_EVICT_CAPABLE BIT_ULL(32)
349 #define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE BIT_ULL(33)
350 #define I40E_FLAG_128_QP_RSS_CAPABLE BIT_ULL(34)
351 #define I40E_FLAG_WB_ON_ITR_CAPABLE BIT_ULL(35)
352 #define I40E_FLAG_VEB_STATS_ENABLED BIT_ULL(37)
353 #define I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE BIT_ULL(38)
354 #define I40E_FLAG_LINK_POLLING_ENABLED BIT_ULL(39)
355 #define I40E_FLAG_VEB_MODE_ENABLED BIT_ULL(40)
356 #define I40E_FLAG_GENEVE_OFFLOAD_CAPABLE BIT_ULL(41)
357 #define I40E_FLAG_NO_PCI_LINK_CHECK BIT_ULL(42)
358 #define I40E_FLAG_100M_SGMII_CAPABLE BIT_ULL(43)
359 #define I40E_FLAG_RESTART_AUTONEG BIT_ULL(44)
360 #define I40E_FLAG_NO_DCB_SUPPORT BIT_ULL(45)
361 #define I40E_FLAG_USE_SET_LLDP_MIB BIT_ULL(46)
362 #define I40E_FLAG_STOP_FW_LLDP BIT_ULL(47)
363 #define I40E_FLAG_PHY_CONTROLS_LEDS BIT_ULL(48)
364 #define I40E_FLAG_PF_MAC BIT_ULL(50)
365 #define I40E_FLAG_TRUE_PROMISC_SUPPORT BIT_ULL(51)
366 #define I40E_FLAG_HAVE_CRT_RETIMER BIT_ULL(52)
367 #define I40E_FLAG_PTP_L4_CAPABLE BIT_ULL(53)
368 #define I40E_FLAG_CLIENT_RESET BIT_ULL(54)
369 #define I40E_FLAG_TEMP_LINK_POLLING BIT_ULL(55)
370 #define I40E_FLAG_CLIENT_L2_CHANGE BIT_ULL(56)
371 #define I40E_FLAG_WOL_MC_MAGIC_PKT_WAKE BIT_ULL(57)
373 /* Tracks features that are disabled due to hw limitations.
374 * If a bit is set here, it means that the corresponding
375 * bit in the 'flags' field is cleared i.e that feature
378 u64 hw_disabled_flags;
381 struct i40e_fcoe fcoe;
383 #endif /* I40E_FCOE */
384 struct i40e_client_instance *cinst;
385 bool stat_offsets_loaded;
386 struct i40e_hw_port_stats stats;
387 struct i40e_hw_port_stats stats_offsets;
388 u32 tx_timeout_count;
389 u32 tx_timeout_recovery_level;
390 unsigned long tx_timeout_last_recovery;
391 u32 tx_sluggish_count;
392 u32 hw_csum_rx_error;
394 u16 corer_count; /* Core reset count */
395 u16 globr_count; /* Global reset count */
396 u16 empr_count; /* EMP reset count */
397 u16 pfr_count; /* PF reset count */
398 u16 sw_int_count; /* SW interrupt count */
400 struct mutex switch_mutex;
401 u16 lan_vsi; /* our default LAN VSI */
402 u16 lan_veb; /* initial relay, if exists */
403 #define I40E_NO_VEB 0xffff
404 #define I40E_NO_VSI 0xffff
405 u16 next_vsi; /* Next unallocated VSI - 0-based! */
406 struct i40e_vsi **vsi;
407 struct i40e_veb *veb[I40E_MAX_VEB];
409 struct i40e_lump_tracking *qp_pile;
410 struct i40e_lump_tracking *irq_pile;
412 /* switch config info */
416 struct kobject *switch_kobj;
417 #ifdef CONFIG_DEBUG_FS
418 struct dentry *i40e_dbg_pf;
419 #endif /* CONFIG_DEBUG_FS */
422 u16 instance; /* A unique number per i40e_pf instance in the system */
424 /* sr-iov config info */
426 int num_alloc_vfs; /* actual number of VFs allocated */
428 u32 arq_overflows; /* Not fatal, possibly indicative of problems */
430 /* DCBx/DCBNL capability for PF that indicates
431 * whether DCBx is managed by firmware or host
432 * based agent (LLDPAD). Also, indicates what
433 * flavor of DCBx protocol (IEEE/CEE) is supported
434 * by the device. For now we're supporting IEEE
439 u32 fcoe_hmc_filt_num;
440 u32 fcoe_hmc_cntx_num;
441 struct i40e_filter_control_settings filter_settings;
443 struct ptp_clock *ptp_clock;
444 struct ptp_clock_info ptp_caps;
445 struct sk_buff *ptp_tx_skb;
446 struct hwtstamp_config tstamp_config;
447 struct mutex tmreg_lock; /* Used to protect the SYSTIME registers. */
449 u32 tx_hwtstamp_timeouts;
450 u32 rx_hwtstamp_cleared;
451 u32 latch_event_flags;
452 spinlock_t ptp_rx_lock; /* Used to protect Rx timestamp registers. */
453 unsigned long latch_events[4];
456 u16 rss_table_size; /* HW RSS table size */
457 /* These are only valid in NPAR modes */
467 * i40e_mac_to_hkey - Convert a 6-byte MAC Address to a u64 hash key
468 * @macaddr: the MAC Address as the base key
470 * Simply copies the address and returns it as a u64 for hashing
472 static inline u64 i40e_addr_to_hkey(const u8 *macaddr)
476 ether_addr_copy((u8 *)&key, macaddr);
480 enum i40e_filter_state {
481 I40E_FILTER_INVALID = 0, /* Invalid state */
482 I40E_FILTER_NEW, /* New, not sent to FW yet */
483 I40E_FILTER_ACTIVE, /* Added to switch by FW */
484 I40E_FILTER_FAILED, /* Rejected by FW */
485 I40E_FILTER_REMOVE, /* To be removed */
486 /* There is no 'removed' state; the filter struct is freed */
488 struct i40e_mac_filter {
489 struct hlist_node hlist;
490 u8 macaddr[ETH_ALEN];
491 #define I40E_VLAN_ANY -1
493 enum i40e_filter_state state;
496 /* Wrapper structure to keep track of filters while we are preparing to send
497 * firmware commands. We cannot send firmware commands while holding a
498 * spinlock, since it might sleep. To avoid this, we wrap the added filters in
499 * a separate structure, which will track the state change and update the real
500 * filter while under lock. We can't simply hold the filters in a separate
501 * list, as this opens a window for a race condition when adding new MAC
502 * addresses to all VLANs, or when adding new VLANs to all MAC addresses.
504 struct i40e_new_mac_filter {
505 struct hlist_node hlist;
506 struct i40e_mac_filter *f;
508 /* Track future changes to state separately */
509 enum i40e_filter_state state;
515 u16 veb_idx; /* index of VEB parent */
518 u16 stats_idx; /* index of VEB parent */
520 u16 bridge_mode; /* Bridge Mode (VEB/VEPA) */
525 u8 bw_tc_share_credits[I40E_MAX_TRAFFIC_CLASS];
526 u16 bw_tc_limit_credits[I40E_MAX_TRAFFIC_CLASS];
527 u8 bw_tc_max_quanta[I40E_MAX_TRAFFIC_CLASS];
528 struct kobject *kobj;
529 bool stat_offsets_loaded;
530 struct i40e_eth_stats stats;
531 struct i40e_eth_stats stats_offsets;
532 struct i40e_veb_tc_stats tc_stats;
533 struct i40e_veb_tc_stats tc_stats_offsets;
536 /* struct that defines a VSI, associated with a dev */
538 struct net_device *netdev;
539 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
540 bool netdev_registered;
541 bool stat_offsets_loaded;
543 u32 current_netdev_flags;
545 #define I40E_VSI_FLAG_FILTER_CHANGED BIT(0)
546 #define I40E_VSI_FLAG_VEB_OWNER BIT(1)
549 /* Per VSI lock to protect elements/hash (MAC filter) */
550 spinlock_t mac_filter_hash_lock;
551 /* Fixed size hash table with 2^8 buckets for MAC filters */
552 DECLARE_HASHTABLE(mac_filter_hash, 8);
553 bool has_vlan_filter;
556 struct rtnl_link_stats64 net_stats;
557 struct rtnl_link_stats64 net_stats_offsets;
558 struct i40e_eth_stats eth_stats;
559 struct i40e_eth_stats eth_stats_offsets;
561 struct i40e_fcoe_stats fcoe_stats;
562 struct i40e_fcoe_stats fcoe_stats_offsets;
563 bool fcoe_stat_offsets_loaded;
569 u64 tx_lost_interrupt;
573 /* These are containers of ring pointers, allocated at run-time */
574 struct i40e_ring **rx_rings;
575 struct i40e_ring **tx_rings;
578 u32 promisc_threshold;
581 u16 int_rate_limit; /* value in usecs */
583 u16 rss_table_size; /* HW RSS table size */
584 u16 rss_size; /* Allocated RSS queues */
585 u8 *rss_hkey_user; /* User configured hash keys */
586 u8 *rss_lut_user; /* User configured lookup table entries */
592 /* List of q_vectors allocated to this VSI */
593 struct i40e_q_vector **q_vectors;
598 u16 seid; /* HW index of this VSI (absolute index) */
599 u16 id; /* VSI number */
602 u16 base_queue; /* vsi's first queue in hw array */
603 u16 alloc_queue_pairs; /* Allocated Tx/Rx queues */
604 u16 req_queue_pairs; /* User requested queue pairs */
605 u16 num_queue_pairs; /* Used tx and rx pairs */
607 enum i40e_vsi_type type; /* VSI type, e.g., LAN, FCoE, etc */
608 s16 vf_id; /* Virtual function ID for SRIOV VSIs */
610 struct i40e_tc_configuration tc_config;
611 struct i40e_aqc_vsi_properties_data info;
613 /* VSI BW limit (absolute across all TCs) */
614 u16 bw_limit; /* VSI BW Limit (0 = disabled) */
615 u8 bw_max_quanta; /* Max Quanta when BW limit is enabled */
617 /* Relative TC credits across VSIs */
618 u8 bw_ets_share_credits[I40E_MAX_TRAFFIC_CLASS];
619 /* TC BW limit credits within VSI */
620 u16 bw_ets_limit_credits[I40E_MAX_TRAFFIC_CLASS];
621 /* TC BW limit max quanta within VSI */
622 u8 bw_ets_max_quanta[I40E_MAX_TRAFFIC_CLASS];
624 struct i40e_pf *back; /* Backreference to associated PF */
625 u16 idx; /* index in pf->vsi[] */
626 u16 veb_idx; /* index of VEB parent */
627 struct kobject *kobj; /* sysfs object */
628 bool current_isup; /* Sync 'link up' logging */
629 enum i40e_aq_link_speed current_speed; /* Sync link speed logging */
631 void *priv; /* client driver data reference. */
633 /* VSI specific handlers */
634 irqreturn_t (*irq_handler)(int irq, void *data);
635 } ____cacheline_internodealigned_in_smp;
637 struct i40e_netdev_priv {
638 struct i40e_vsi *vsi;
641 /* struct that defines an interrupt vector */
642 struct i40e_q_vector {
643 struct i40e_vsi *vsi;
645 u16 v_idx; /* index in the vsi->q_vector array. */
646 u16 reg_idx; /* register index of the interrupt */
648 struct napi_struct napi;
650 struct i40e_ring_container rx;
651 struct i40e_ring_container tx;
653 u8 num_ringpairs; /* total number of ring pairs in vector */
655 #define I40E_Q_VECTOR_HUNG_DETECT 0 /* Bit Index for hung detection logic */
656 unsigned long hung_detected; /* Set/Reset for hung_detection logic */
658 cpumask_t affinity_mask;
659 struct irq_affinity_notify affinity_notify;
661 struct rcu_head rcu; /* to avoid race with update stats on free */
662 char name[I40E_INT_NAME_STR_LEN];
664 #define ITR_COUNTDOWN_START 100
665 u8 itr_countdown; /* when 0 should adjust ITR */
666 } ____cacheline_internodealigned_in_smp;
670 struct list_head list;
675 * i40e_nvm_version_str - format the NVM version strings
676 * @hw: ptr to the hardware info
678 static inline char *i40e_nvm_version_str(struct i40e_hw *hw)
685 full_ver = hw->nvm.oem_ver;
686 ver = (u8)(full_ver >> I40E_OEM_VER_SHIFT);
687 build = (u16)((full_ver >> I40E_OEM_VER_BUILD_SHIFT) &
688 I40E_OEM_VER_BUILD_MASK);
689 patch = (u8)(full_ver & I40E_OEM_VER_PATCH_MASK);
691 snprintf(buf, sizeof(buf),
692 "%x.%02x 0x%x %d.%d.%d",
693 (hw->nvm.version & I40E_NVM_VERSION_HI_MASK) >>
694 I40E_NVM_VERSION_HI_SHIFT,
695 (hw->nvm.version & I40E_NVM_VERSION_LO_MASK) >>
696 I40E_NVM_VERSION_LO_SHIFT,
697 hw->nvm.eetrack, ver, build, patch);
703 * i40e_netdev_to_pf: Retrieve the PF struct for given netdev
704 * @netdev: the corresponding netdev
706 * Return the PF struct for the given netdev
708 static inline struct i40e_pf *i40e_netdev_to_pf(struct net_device *netdev)
710 struct i40e_netdev_priv *np = netdev_priv(netdev);
711 struct i40e_vsi *vsi = np->vsi;
716 static inline void i40e_vsi_setup_irqhandler(struct i40e_vsi *vsi,
717 irqreturn_t (*irq_handler)(int, void *))
719 vsi->irq_handler = irq_handler;
723 * i40e_rx_is_programming_status - check for programming status descriptor
724 * @qw: the first quad word of the program status descriptor
726 * The value of in the descriptor length field indicate if this
727 * is a programming status descriptor for flow director or FCoE
728 * by the value of I40E_RX_PROG_STATUS_DESC_LENGTH, otherwise
729 * it is a packet descriptor.
731 static inline bool i40e_rx_is_programming_status(u64 qw)
733 return I40E_RX_PROG_STATUS_DESC_LENGTH ==
734 (qw >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT);
738 * i40e_get_fd_cnt_all - get the total FD filter space available
739 * @pf: pointer to the PF struct
741 static inline int i40e_get_fd_cnt_all(struct i40e_pf *pf)
743 return pf->hw.fdir_shared_filter_count + pf->fdir_pf_filter_count;
747 * i40e_read_fd_input_set - reads value of flow director input set register
748 * @pf: pointer to the PF struct
749 * @addr: register addr
751 * This function reads value of flow director input set register
752 * specified by 'addr' (which is specific to flow-type)
754 static inline u64 i40e_read_fd_input_set(struct i40e_pf *pf, u16 addr)
758 val = i40e_read_rx_ctl(&pf->hw, I40E_PRTQF_FD_INSET(addr, 1));
760 val += i40e_read_rx_ctl(&pf->hw, I40E_PRTQF_FD_INSET(addr, 0));
766 * i40e_write_fd_input_set - writes value into flow director input set register
767 * @pf: pointer to the PF struct
768 * @addr: register addr
769 * @val: value to be written
771 * This function writes specified value to the register specified by 'addr'.
772 * This register is input set register based on flow-type.
774 static inline void i40e_write_fd_input_set(struct i40e_pf *pf,
777 i40e_write_rx_ctl(&pf->hw, I40E_PRTQF_FD_INSET(addr, 1),
779 i40e_write_rx_ctl(&pf->hw, I40E_PRTQF_FD_INSET(addr, 0),
780 (u32)(val & 0xFFFFFFFFULL));
783 /* needed by i40e_ethtool.c */
784 int i40e_up(struct i40e_vsi *vsi);
785 void i40e_down(struct i40e_vsi *vsi);
786 extern const char i40e_driver_name[];
787 extern const char i40e_driver_version_str[];
788 void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags);
789 void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags);
790 int i40e_config_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
791 int i40e_get_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
792 void i40e_fill_rss_lut(struct i40e_pf *pf, u8 *lut,
793 u16 rss_table_size, u16 rss_size);
794 struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id);
796 * i40e_find_vsi_by_type - Find and return Flow Director VSI
797 * @pf: PF to search for VSI
798 * @type: Value indicating type of VSI we are looking for
800 static inline struct i40e_vsi *
801 i40e_find_vsi_by_type(struct i40e_pf *pf, u16 type)
805 for (i = 0; i < pf->num_alloc_vsi; i++) {
806 struct i40e_vsi *vsi = pf->vsi[i];
808 if (vsi && vsi->type == type)
814 void i40e_update_stats(struct i40e_vsi *vsi);
815 void i40e_update_eth_stats(struct i40e_vsi *vsi);
816 struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi);
817 int i40e_fetch_switch_configuration(struct i40e_pf *pf,
820 int i40e_add_del_fdir(struct i40e_vsi *vsi,
821 struct i40e_fdir_filter *input, bool add);
822 void i40e_fdir_check_and_reenable(struct i40e_pf *pf);
823 u32 i40e_get_current_fd_count(struct i40e_pf *pf);
824 u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf);
825 u32 i40e_get_current_atr_cnt(struct i40e_pf *pf);
826 u32 i40e_get_global_fd_count(struct i40e_pf *pf);
827 bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features);
828 void i40e_set_ethtool_ops(struct net_device *netdev);
829 struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
830 const u8 *macaddr, s16 vlan);
831 void __i40e_del_filter(struct i40e_vsi *vsi, struct i40e_mac_filter *f);
832 void i40e_del_filter(struct i40e_vsi *vsi, const u8 *macaddr, s16 vlan);
833 int i40e_sync_vsi_filters(struct i40e_vsi *vsi);
834 struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
835 u16 uplink, u32 param1);
836 int i40e_vsi_release(struct i40e_vsi *vsi);
838 void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
839 struct i40e_vsi_context *ctxt,
840 u8 enabled_tc, bool is_add);
842 void i40e_service_event_schedule(struct i40e_pf *pf);
843 void i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id,
846 int i40e_vsi_start_rings(struct i40e_vsi *vsi);
847 void i40e_vsi_stop_rings(struct i40e_vsi *vsi);
848 int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
849 struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
850 u16 downlink_seid, u8 enabled_tc);
851 void i40e_veb_release(struct i40e_veb *veb);
853 int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc);
854 int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid);
855 void i40e_vsi_remove_pvid(struct i40e_vsi *vsi);
856 void i40e_vsi_reset_stats(struct i40e_vsi *vsi);
857 void i40e_pf_reset_stats(struct i40e_pf *pf);
858 #ifdef CONFIG_DEBUG_FS
859 void i40e_dbg_pf_init(struct i40e_pf *pf);
860 void i40e_dbg_pf_exit(struct i40e_pf *pf);
861 void i40e_dbg_init(void);
862 void i40e_dbg_exit(void);
864 static inline void i40e_dbg_pf_init(struct i40e_pf *pf) {}
865 static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
866 static inline void i40e_dbg_init(void) {}
867 static inline void i40e_dbg_exit(void) {}
868 #endif /* CONFIG_DEBUG_FS*/
869 /* needed by client drivers */
870 int i40e_lan_add_device(struct i40e_pf *pf);
871 int i40e_lan_del_device(struct i40e_pf *pf);
872 void i40e_client_subtask(struct i40e_pf *pf);
873 void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi);
874 void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset);
875 void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs);
876 void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id);
877 int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id);
879 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
880 * @vsi: pointer to a vsi
881 * @vector: enable a particular Hw Interrupt vector, without base_vector
883 static inline void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector)
885 struct i40e_pf *pf = vsi->back;
886 struct i40e_hw *hw = &pf->hw;
889 /* definitely clear the PBA here, as this function is meant to
890 * clean out all previous interrupts AND enable the interrupt
892 val = I40E_PFINT_DYN_CTLN_INTENA_MASK |
893 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK |
894 (I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT);
895 wr32(hw, I40E_PFINT_DYN_CTLN(vector + vsi->base_vector - 1), val);
899 void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf);
900 void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf, bool clearpba);
902 void i40e_get_netdev_stats_struct(struct net_device *netdev,
903 struct rtnl_link_stats64 *storage);
904 int i40e_set_mac(struct net_device *netdev, void *p);
905 void i40e_set_rx_mode(struct net_device *netdev);
907 int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
909 void i40e_tx_timeout(struct net_device *netdev);
910 int i40e_vlan_rx_add_vid(struct net_device *netdev,
911 __always_unused __be16 proto, u16 vid);
912 int i40e_vlan_rx_kill_vid(struct net_device *netdev,
913 __always_unused __be16 proto, u16 vid);
915 int i40e_open(struct net_device *netdev);
916 int i40e_close(struct net_device *netdev);
917 int i40e_vsi_open(struct i40e_vsi *vsi);
918 void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
919 int i40e_add_vlan_all_mac(struct i40e_vsi *vsi, s16 vid);
920 int i40e_vsi_add_vlan(struct i40e_vsi *vsi, u16 vid);
921 void i40e_rm_vlan_all_mac(struct i40e_vsi *vsi, s16 vid);
922 void i40e_vsi_kill_vlan(struct i40e_vsi *vsi, u16 vid);
923 struct i40e_mac_filter *i40e_add_mac_filter(struct i40e_vsi *vsi,
925 int i40e_del_mac_filter(struct i40e_vsi *vsi, const u8 *macaddr);
926 bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
927 struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, const u8 *macaddr);
929 int __i40e_setup_tc(struct net_device *netdev, u32 handle, __be16 proto,
930 struct tc_to_netdev *tc);
931 void i40e_netpoll(struct net_device *netdev);
932 int i40e_fcoe_enable(struct net_device *netdev);
933 int i40e_fcoe_disable(struct net_device *netdev);
934 int i40e_fcoe_vsi_init(struct i40e_vsi *vsi, struct i40e_vsi_context *ctxt);
935 u8 i40e_get_fcoe_tc_map(struct i40e_pf *pf);
936 void i40e_fcoe_config_netdev(struct net_device *netdev, struct i40e_vsi *vsi);
937 void i40e_fcoe_vsi_setup(struct i40e_pf *pf);
938 void i40e_init_pf_fcoe(struct i40e_pf *pf);
939 int i40e_fcoe_setup_ddp_resources(struct i40e_vsi *vsi);
940 void i40e_fcoe_free_ddp_resources(struct i40e_vsi *vsi);
941 int i40e_fcoe_handle_offload(struct i40e_ring *rx_ring,
942 union i40e_rx_desc *rx_desc,
943 struct sk_buff *skb);
944 void i40e_fcoe_handle_status(struct i40e_ring *rx_ring,
945 union i40e_rx_desc *rx_desc, u8 prog_id);
946 #endif /* I40E_FCOE */
947 void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
948 #ifdef CONFIG_I40E_DCB
949 void i40e_dcbnl_flush_apps(struct i40e_pf *pf,
950 struct i40e_dcbx_config *old_cfg,
951 struct i40e_dcbx_config *new_cfg);
952 void i40e_dcbnl_set_all(struct i40e_vsi *vsi);
953 void i40e_dcbnl_setup(struct i40e_vsi *vsi);
954 bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
955 struct i40e_dcbx_config *old_cfg,
956 struct i40e_dcbx_config *new_cfg);
957 #endif /* CONFIG_I40E_DCB */
958 void i40e_ptp_rx_hang(struct i40e_vsi *vsi);
959 void i40e_ptp_tx_hwtstamp(struct i40e_pf *pf);
960 void i40e_ptp_rx_hwtstamp(struct i40e_pf *pf, struct sk_buff *skb, u8 index);
961 void i40e_ptp_set_increment(struct i40e_pf *pf);
962 int i40e_ptp_set_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
963 int i40e_ptp_get_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
964 void i40e_ptp_init(struct i40e_pf *pf);
965 void i40e_ptp_stop(struct i40e_pf *pf);
966 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi);
967 i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf);
968 i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf);
969 i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf);
970 void i40e_print_link_message(struct i40e_vsi *vsi, bool isup);
971 #endif /* _I40E_H_ */