1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /**************************************************************************/
4 /* IBM System i and System p Virtual NIC Device Driver */
5 /* Copyright (C) 2014 IBM Corp. */
11 /* This module contains the implementation of a virtual ethernet device */
12 /* for use with IBM i/pSeries LPAR Linux. It utilizes the logical LAN */
13 /* option of the RS/6000 Platform Architecture to interface with virtual */
14 /* ethernet NICs that are presented to the partition by the hypervisor. */
16 /**************************************************************************/
18 #define IBMVNIC_NAME "ibmvnic"
19 #define IBMVNIC_DRIVER_VERSION "1.0.1"
20 #define IBMVNIC_INVALID_MAP -1
21 #define IBMVNIC_OPEN_FAILED 3
23 /* basic structures plus 100 2k buffers */
24 #define IBMVNIC_IO_ENTITLEMENT_DEFAULT 610305
26 /* Initial module_parameters */
27 #define IBMVNIC_RX_WEIGHT 16
28 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */
29 #define IBMVNIC_BUFFS_PER_POOL 100
30 #define IBMVNIC_MAX_QUEUES 16
31 #define IBMVNIC_MAX_QUEUE_SZ 4096
32 #define IBMVNIC_MAX_IND_DESCS 16
33 #define IBMVNIC_IND_ARR_SZ (IBMVNIC_MAX_IND_DESCS * 32)
35 #define IBMVNIC_TSO_BUF_SZ 65536
36 #define IBMVNIC_TSO_BUFS 64
37 #define IBMVNIC_TSO_POOL_MASK 0x80000000
39 /* A VNIC adapter has set of Rx and Tx pools (aka queues). Each Rx/Tx pool
40 * has a set of buffers. The size of each buffer is determined by the MTU.
42 * Each Rx/Tx pool is also associated with a DMA region that is shared
43 * with the "hardware" (VIOS) and used to send/receive packets. The DMA
44 * region is also referred to as a Long Term Buffer or LTB.
46 * The size of the DMA region required for an Rx/Tx pool depends on the
47 * number and size (MTU) of the buffers in the pool. At the max levels
48 * of 4096 jumbo frames (MTU=9000) we will need about 9K*4K = 36MB plus
51 * But the size of a single DMA region is limited by MAX_PAGE_ORDER in the
52 * kernel (about 16MB currently). To support say 4K Jumbo frames, we
53 * use a set of LTBs (struct ltb_set) per pool.
55 * IBMVNIC_ONE_LTB_MAX - max size of each LTB supported by kernel
56 * IBMVNIC_ONE_LTB_SIZE - current max size of each LTB in an ltb_set
57 * (must be <= IBMVNIC_ONE_LTB_MAX)
58 * IBMVNIC_LTB_SET_SIZE - current size of all LTBs in an ltb_set
60 * Each VNIC can have upto 16 Rx, 16 Tx and 16 TSO pools. The TSO pools
61 * are of fixed length (IBMVNIC_TSO_BUF_SZ * IBMVNIC_TSO_BUFS) of 4MB.
63 * The Rx and Tx pools can have upto 4096 buffers. The max size of these
64 * buffers is about 9588 (for jumbo frames, including IBMVNIC_BUFFER_HLEN).
65 * So, setting the IBMVNIC_LTB_SET_SIZE for a pool to 4096 * 9588 ~= 38MB.
67 * There is a trade-off in setting IBMVNIC_ONE_LTB_SIZE. If it is large,
68 * the allocation of the LTB can fail when system is low in memory. If
69 * its too small, we would need several mappings for each of the Rx/
70 * Tx/TSO pools but there is a limit of 255 mappings per vnic in the
73 * So setting IBMVNIC_ONE_LTB_SIZE to 8MB. With IBMVNIC_LTB_SET_SIZE set
74 * to 38MB, we will need 5 LTBs per Rx and Tx pool and 1 LTB per TSO
75 * pool for the 4MB. Thus the 16 Rx and Tx queues require 32 * 5 = 160
76 * plus 16 for the TSO pools for a total of 176 LTB mappings per VNIC.
78 #define IBMVNIC_ONE_LTB_MAX ((u32)((1 << MAX_PAGE_ORDER) * PAGE_SIZE))
79 #define IBMVNIC_ONE_LTB_SIZE min((u32)(8 << 20), IBMVNIC_ONE_LTB_MAX)
80 #define IBMVNIC_LTB_SET_SIZE (38 << 20)
82 #define IBMVNIC_BUFFER_HLEN 500
83 #define IBMVNIC_RESET_DELAY 100
85 struct ibmvnic_login_buffer {
88 #define INITIAL_VERSION_LB 1
89 __be32 num_txcomp_subcrqs;
90 __be32 off_txcomp_subcrqs;
91 __be32 num_rxcomp_subcrqs;
92 __be32 off_rxcomp_subcrqs;
93 __be32 login_rsp_ioba;
95 __be32 client_data_offset;
96 __be32 client_data_len;
97 } __packed __aligned(8);
99 struct ibmvnic_login_rsp_buffer {
102 #define INITIAL_VERSION_LRB 1
103 __be32 num_txsubm_subcrqs;
104 __be32 off_txsubm_subcrqs;
105 __be32 num_rxadd_subcrqs;
106 __be32 off_rxadd_subcrqs;
107 __be32 off_rxadd_buff_size;
108 __be32 num_supp_tx_desc;
109 __be32 off_supp_tx_desc;
110 } __packed __aligned(8);
112 struct ibmvnic_query_ip_offload_buffer {
115 #define INITIAL_VERSION_IOB 1
127 __be16 max_ipv4_header_size;
128 __be16 max_ipv6_header_size;
129 __be16 max_tcp_header_size;
130 __be16 max_udp_header_size;
131 __be32 max_large_tx_size;
132 __be32 max_large_rx_size;
134 u8 ipv6_extension_header;
135 #define IPV6_EH_NOT_SUPPORTED 0x00
136 #define IPV6_EH_SUPPORTED_LIM 0x01
137 #define IPV6_EH_SUPPORTED 0xFF
138 u8 tcp_pseudosum_req;
139 #define TCP_PS_NOT_REQUIRED 0x00
140 #define TCP_PS_REQUIRED 0x01
142 __be16 num_ipv6_ext_headers;
143 __be32 off_ipv6_ext_headers;
145 } __packed __aligned(8);
147 struct ibmvnic_control_ip_offload_buffer {
150 #define INITIAL_VERSION_IOB 1
163 } __packed __aligned(8);
165 struct ibmvnic_fw_component {
167 __be32 trace_buff_size;
170 u8 parent_correlator;
171 u8 error_check_level;
175 } __packed __aligned(8);
177 struct ibmvnic_fw_trace_entry {
181 __be64 pmc_registers;
183 __be64 trace_data[5];
184 } __packed __aligned(8);
186 struct ibmvnic_statistics {
193 __be64 ucast_tx_packets;
194 __be64 ucast_rx_packets;
195 __be64 mcast_tx_packets;
196 __be64 mcast_rx_packets;
197 __be64 bcast_tx_packets;
198 __be64 bcast_rx_packets;
201 __be64 single_collision_frames;
202 __be64 multi_collision_frames;
203 __be64 sqe_test_errors;
205 __be64 late_collisions;
206 __be64 excess_collisions;
207 __be64 internal_mac_tx_errors;
208 __be64 carrier_sense;
209 __be64 too_long_frames;
210 __be64 internal_mac_rx_errors;
212 } __packed __aligned(8);
214 #define NUM_TX_STATS 3
215 struct ibmvnic_tx_queue_stats {
222 #define NUM_RX_STATS 3
223 struct ibmvnic_rx_queue_stats {
229 struct ibmvnic_acl_buffer {
232 #define INITIAL_VERSION_IOB 1
233 u8 mac_acls_restrict;
234 u8 vlan_acls_restrict;
236 __be32 num_mac_addrs;
237 __be32 offset_mac_addrs;
239 __be32 offset_vlan_ids;
241 } __packed __aligned(8);
243 /* descriptors have been changed, how should this be defined? 1? 4? */
245 #define IBMVNIC_TX_DESC_VERSIONS 3
247 /* is this still needed? */
248 struct ibmvnic_tx_comp_desc {
252 __be32 correlators[5];
253 } __packed __aligned(8);
255 /* some flags that included in v0 descriptor, which is gone
256 * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM
257 * and only in some offload_flags variable that doesn't seem
258 * to be used anywhere, can probably be removed?
261 #define IBMVNIC_TCP_CHKSUM 0x20
262 #define IBMVNIC_UDP_CHKSUM 0x08
264 struct ibmvnic_tx_desc {
268 #define IBMVNIC_TX_DESC 0x10
272 #define IBMVNIC_TX_COMP_NEEDED 0x80
273 #define IBMVNIC_TX_CHKSUM_OFFLOAD 0x40
274 #define IBMVNIC_TX_LSO 0x20
275 #define IBMVNIC_TX_PROT_TCP 0x10
276 #define IBMVNIC_TX_PROT_UDP 0x08
277 #define IBMVNIC_TX_PROT_IPV4 0x04
278 #define IBMVNIC_TX_PROT_IPV6 0x02
279 #define IBMVNIC_TX_VLAN_PRESENT 0x01
281 #define IBMVNIC_TX_VLAN_INSERT 0x80
289 } __packed __aligned(8);
291 struct ibmvnic_hdr_desc {
294 #define IBMVNIC_HDR_DESC 0x11
301 } __packed __aligned(8);
303 struct ibmvnic_hdr_ext_desc {
306 #define IBMVNIC_HDR_EXT_DESC 0x12
309 } __packed __aligned(8);
311 struct ibmvnic_sge_desc {
314 #define IBMVNIC_SGE_DESC 0x30
322 } __packed __aligned(8);
324 struct ibmvnic_rx_comp_desc {
327 #define IBMVNIC_IP_CHKSUM_GOOD 0x80
328 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD 0x40
329 #define IBMVNIC_END_FRAME 0x20
330 #define IBMVNIC_EXACT_MC 0x10
331 #define IBMVNIC_VLAN_STRIPPED 0x08
332 __be16 off_frame_data;
338 } __packed __aligned(8);
340 struct ibmvnic_generic_scrq {
343 } __packed __aligned(8);
345 struct ibmvnic_rx_buff_add_desc {
353 } __packed __aligned(8);
356 u8 code; /* one of enum ibmvnic_rc_codes */
358 } __packed __aligned(4);
360 struct ibmvnic_generic_crq {
364 struct ibmvnic_rc rc;
365 } __packed __aligned(8);
367 struct ibmvnic_version_exchange {
371 #define IBMVNIC_INITIAL_VERSION 1
373 struct ibmvnic_rc rc;
374 } __packed __aligned(8);
376 struct ibmvnic_capability {
379 __be16 capability; /* one of ibmvnic_capabilities */
381 struct ibmvnic_rc rc;
382 } __packed __aligned(8);
384 struct ibmvnic_login {
390 } __packed __aligned(8);
392 struct ibmvnic_phys_parms {
396 #define IBMVNIC_EXTERNAL_LOOPBACK 0x80
397 #define IBMVNIC_INTERNAL_LOOPBACK 0x40
398 #define IBMVNIC_PROMISC 0x20
399 #define IBMVNIC_PHYS_LINK_ACTIVE 0x10
400 #define IBMVNIC_AUTONEG_DUPLEX 0x08
401 #define IBMVNIC_FULL_DUPLEX 0x04
402 #define IBMVNIC_HALF_DUPLEX 0x02
403 #define IBMVNIC_CAN_CHG_PHYS_PARMS 0x01
405 #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80
407 #define IBMVNIC_AUTONEG 0x80000000
408 #define IBMVNIC_10MBPS 0x40000000
409 #define IBMVNIC_100MBPS 0x20000000
410 #define IBMVNIC_1GBPS 0x10000000
411 #define IBMVNIC_10GBPS 0x08000000
412 #define IBMVNIC_40GBPS 0x04000000
413 #define IBMVNIC_100GBPS 0x02000000
414 #define IBMVNIC_25GBPS 0x01000000
415 #define IBMVNIC_50GBPS 0x00800000
416 #define IBMVNIC_200GBPS 0x00400000
418 struct ibmvnic_rc rc;
419 } __packed __aligned(8);
421 struct ibmvnic_logical_link_state {
425 #define IBMVNIC_LOGICAL_LNK_DN 0x00
426 #define IBMVNIC_LOGICAL_LNK_UP 0x01
427 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff
429 struct ibmvnic_rc rc;
430 } __packed __aligned(8);
432 struct ibmvnic_query_ip_offload {
438 struct ibmvnic_rc rc;
439 } __packed __aligned(8);
441 struct ibmvnic_control_ip_offload {
447 struct ibmvnic_rc rc;
448 } __packed __aligned(8);
450 struct ibmvnic_request_statistics {
454 #define IBMVNIC_PHYSICAL_PORT 0x80
459 } __packed __aligned(8);
461 struct ibmvnic_error_indication {
465 #define IBMVNIC_FATAL_ERROR 0x80
468 __be32 detail_error_sz;
471 } __packed __aligned(8);
473 struct ibmvnic_link_state_indication {
478 u8 logical_link_state;
480 } __packed __aligned(8);
482 struct ibmvnic_change_mac_addr {
487 struct ibmvnic_rc rc;
488 } __packed __aligned(8);
490 struct ibmvnic_multicast_ctrl {
495 #define IBMVNIC_ENABLE_MC 0x80
496 #define IBMVNIC_DISABLE_MC 0x40
497 #define IBMVNIC_ENABLE_ALL 0x20
498 #define IBMVNIC_DISABLE_ALL 0x10
500 __be16 reserved2; /* was num_enabled_mc_addr; */
501 struct ibmvnic_rc rc;
502 } __packed __aligned(8);
504 struct ibmvnic_get_vpd_size {
508 } __packed __aligned(8);
510 struct ibmvnic_get_vpd_size_rsp {
515 struct ibmvnic_rc rc;
516 } __packed __aligned(8);
518 struct ibmvnic_get_vpd {
525 } __packed __aligned(8);
527 struct ibmvnic_get_vpd_rsp {
531 struct ibmvnic_rc rc;
532 } __packed __aligned(8);
534 struct ibmvnic_acl_change_indication {
538 #define IBMVNIC_MAC_ACL 0
539 #define IBMVNIC_VLAN_ACL 1
541 } __packed __aligned(8);
543 struct ibmvnic_acl_query {
550 } __packed __aligned(8);
552 struct ibmvnic_tune {
559 } __packed __aligned(8);
561 struct ibmvnic_request_map {
569 } __packed __aligned(8);
571 struct ibmvnic_request_map_rsp {
577 struct ibmvnic_rc rc;
578 } __packed __aligned(8);
580 struct ibmvnic_request_unmap {
586 } __packed __aligned(8);
588 struct ibmvnic_request_unmap_rsp {
594 struct ibmvnic_rc rc;
595 } __packed __aligned(8);
597 struct ibmvnic_query_map {
601 } __packed __aligned(8);
603 struct ibmvnic_query_map_rsp {
610 struct ibmvnic_rc rc;
611 } __packed __aligned(8);
614 struct ibmvnic_generic_crq generic;
615 struct ibmvnic_version_exchange version_exchange;
616 struct ibmvnic_version_exchange version_exchange_rsp;
617 struct ibmvnic_capability query_capability;
618 struct ibmvnic_capability query_capability_rsp;
619 struct ibmvnic_capability request_capability;
620 struct ibmvnic_capability request_capability_rsp;
621 struct ibmvnic_login login;
622 struct ibmvnic_generic_crq login_rsp;
623 struct ibmvnic_phys_parms query_phys_parms;
624 struct ibmvnic_phys_parms query_phys_parms_rsp;
625 struct ibmvnic_phys_parms query_phys_capabilities;
626 struct ibmvnic_phys_parms query_phys_capabilities_rsp;
627 struct ibmvnic_phys_parms set_phys_parms;
628 struct ibmvnic_phys_parms set_phys_parms_rsp;
629 struct ibmvnic_logical_link_state logical_link_state;
630 struct ibmvnic_logical_link_state logical_link_state_rsp;
631 struct ibmvnic_query_ip_offload query_ip_offload;
632 struct ibmvnic_query_ip_offload query_ip_offload_rsp;
633 struct ibmvnic_control_ip_offload control_ip_offload;
634 struct ibmvnic_control_ip_offload control_ip_offload_rsp;
635 struct ibmvnic_request_statistics request_statistics;
636 struct ibmvnic_generic_crq request_statistics_rsp;
637 struct ibmvnic_error_indication error_indication;
638 struct ibmvnic_link_state_indication link_state_indication;
639 struct ibmvnic_change_mac_addr change_mac_addr;
640 struct ibmvnic_change_mac_addr change_mac_addr_rsp;
641 struct ibmvnic_multicast_ctrl multicast_ctrl;
642 struct ibmvnic_multicast_ctrl multicast_ctrl_rsp;
643 struct ibmvnic_get_vpd_size get_vpd_size;
644 struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
645 struct ibmvnic_get_vpd get_vpd;
646 struct ibmvnic_get_vpd_rsp get_vpd_rsp;
647 struct ibmvnic_acl_change_indication acl_change_indication;
648 struct ibmvnic_acl_query acl_query;
649 struct ibmvnic_generic_crq acl_query_rsp;
650 struct ibmvnic_tune tune;
651 struct ibmvnic_generic_crq tune_rsp;
652 struct ibmvnic_request_map request_map;
653 struct ibmvnic_request_map_rsp request_map_rsp;
654 struct ibmvnic_request_unmap request_unmap;
655 struct ibmvnic_request_unmap_rsp request_unmap_rsp;
656 struct ibmvnic_query_map query_map;
657 struct ibmvnic_query_map_rsp query_map_rsp;
660 enum ibmvnic_rc_codes {
671 UNSUPPORTEDOPTION = 10,
674 enum ibmvnic_capabilities {
677 MIN_RX_ADD_QUEUES = 3,
680 MAX_RX_ADD_QUEUES = 6,
683 REQ_RX_ADD_QUEUES = 9,
684 MIN_TX_ENTRIES_PER_SUBCRQ = 10,
685 MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11,
686 MAX_TX_ENTRIES_PER_SUBCRQ = 12,
687 MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13,
688 REQ_TX_ENTRIES_PER_SUBCRQ = 14,
689 REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15,
691 PROMISC_REQUESTED = 17,
692 PROMISC_SUPPORTED = 18,
696 MAX_MULTICAST_FILTERS = 22,
697 VLAN_HEADER_INSERTION = 23,
698 RX_VLAN_HEADER_INSERTION = 24,
699 MAX_TX_SG_ENTRIES = 25,
700 RX_SG_SUPPORTED = 26,
701 RX_SG_REQUESTED = 27,
702 OPT_TX_COMP_SUB_QUEUES = 28,
703 OPT_RX_COMP_QUEUES = 29,
704 OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30,
705 OPT_TX_ENTRIES_PER_SUBCRQ = 31,
706 OPT_RXBA_ENTRIES_PER_SUBCRQ = 32,
710 enum ibmvnic_error_cause {
720 enum ibmvnic_commands {
721 VERSION_EXCHANGE = 0x01,
722 VERSION_EXCHANGE_RSP = 0x81,
723 QUERY_CAPABILITY = 0x02,
724 QUERY_CAPABILITY_RSP = 0x82,
725 REQUEST_CAPABILITY = 0x03,
726 REQUEST_CAPABILITY_RSP = 0x83,
729 QUERY_PHYS_PARMS = 0x05,
730 QUERY_PHYS_PARMS_RSP = 0x85,
731 QUERY_PHYS_CAPABILITIES = 0x06,
732 QUERY_PHYS_CAPABILITIES_RSP = 0x86,
733 SET_PHYS_PARMS = 0x07,
734 SET_PHYS_PARMS_RSP = 0x87,
735 ERROR_INDICATION = 0x08,
736 LOGICAL_LINK_STATE = 0x0C,
737 LOGICAL_LINK_STATE_RSP = 0x8C,
738 REQUEST_STATISTICS = 0x0D,
739 REQUEST_STATISTICS_RSP = 0x8D,
740 COLLECT_FW_TRACE = 0x11,
741 COLLECT_FW_TRACE_RSP = 0x91,
742 LINK_STATE_INDICATION = 0x12,
743 CHANGE_MAC_ADDR = 0x13,
744 CHANGE_MAC_ADDR_RSP = 0x93,
745 MULTICAST_CTRL = 0x14,
746 MULTICAST_CTRL_RSP = 0x94,
748 GET_VPD_SIZE_RSP = 0x95,
753 QUERY_IP_OFFLOAD = 0x18,
754 QUERY_IP_OFFLOAD_RSP = 0x98,
755 CONTROL_IP_OFFLOAD = 0x19,
756 CONTROL_IP_OFFLOAD_RSP = 0x99,
757 ACL_CHANGE_INDICATION = 0x1A,
759 ACL_QUERY_RSP = 0x9B,
761 QUERY_MAP_RSP = 0x9D,
763 REQUEST_MAP_RSP = 0x9E,
764 REQUEST_UNMAP = 0x1F,
765 REQUEST_UNMAP_RSP = 0x9F,
767 VLAN_CTRL_RSP = 0xA0,
770 enum ibmvnic_crq_type {
771 IBMVNIC_CRQ_CMD = 0x80,
772 IBMVNIC_CRQ_CMD_RSP = 0x80,
773 IBMVNIC_CRQ_INIT_CMD = 0xC0,
774 IBMVNIC_CRQ_INIT_RSP = 0xC0,
775 IBMVNIC_CRQ_XPORT_EVENT = 0xFF,
778 enum ibmvfc_crq_format {
779 IBMVNIC_CRQ_INIT = 0x01,
780 IBMVNIC_CRQ_INIT_COMPLETE = 0x02,
781 IBMVNIC_PARTITION_MIGRATED = 0x06,
782 IBMVNIC_DEVICE_FAILOVER = 0x08,
785 struct ibmvnic_crq_queue {
786 union ibmvnic_crq *msgs;
788 dma_addr_t msg_token;
789 /* Used for serialization of msgs, cur */
796 struct ibmvnic_generic_scrq generic;
797 struct ibmvnic_tx_comp_desc tx_comp;
798 struct ibmvnic_tx_desc v1;
799 struct ibmvnic_hdr_desc hdr;
800 struct ibmvnic_hdr_ext_desc hdr_ext;
801 struct ibmvnic_sge_desc sge;
802 struct ibmvnic_rx_comp_desc rx_comp;
803 struct ibmvnic_rx_buff_add_desc rx_add;
806 struct ibmvnic_ind_xmit_queue {
807 union sub_crq *indir_arr;
808 dma_addr_t indir_dma;
812 struct ibmvnic_sub_crq_queue {
815 dma_addr_t msg_token;
816 unsigned long crq_num;
817 unsigned long hw_irq;
819 unsigned int pool_index;
821 /* Used for serialization of msgs, cur */
823 struct sk_buff *rx_skb_top;
824 struct ibmvnic_adapter *adapter;
825 struct ibmvnic_ind_xmit_queue ind_buf;
829 cpumask_var_t affinity_mask;
830 } ____cacheline_aligned;
832 struct ibmvnic_long_term_buff {
839 struct ibmvnic_ltb_set {
841 struct ibmvnic_long_term_buff *ltbs;
844 struct ibmvnic_tx_buff {
851 struct ibmvnic_tx_pool {
852 struct ibmvnic_tx_buff *tx_buff;
856 struct ibmvnic_ltb_set ltb_set;
859 } ____cacheline_aligned;
861 struct ibmvnic_rx_buff {
869 struct ibmvnic_rx_pool {
870 struct ibmvnic_rx_buff *rx_buff;
871 int size; /* # of buffers in the pool */
879 struct ibmvnic_ltb_set ltb_set;
880 } ____cacheline_aligned;
888 enum vnic_state {VNIC_PROBING = 1,
898 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
901 VNIC_RESET_NON_FATAL,
903 VNIC_RESET_CHANGE_PARAM,
904 VNIC_RESET_PASSIVE_INIT};
907 enum ibmvnic_reset_reason reset_reason;
908 struct list_head list;
911 struct ibmvnic_tunables {
919 struct ibmvnic_adapter {
920 struct vio_dev *vdev;
921 struct net_device *netdev;
922 struct ibmvnic_crq_queue crq;
923 u8 mac_addr[ETH_ALEN];
924 struct ibmvnic_query_ip_offload_buffer ip_offload_buf;
925 dma_addr_t ip_offload_tok;
926 struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl;
927 dma_addr_t ip_offload_ctrl_tok;
930 /* Vital Product Data (VPD) */
931 struct ibmvnic_vpd *vpd;
935 struct ibmvnic_statistics stats;
936 dma_addr_t stats_token;
937 struct completion stats_done;
938 int replenish_no_mem;
939 int replenish_add_buff_success;
940 int replenish_add_buff_failure;
941 int replenish_task_cycles;
945 struct ibmvnic_tx_queue_stats *tx_stats_buffers;
946 struct ibmvnic_rx_queue_stats *rx_stats_buffers;
949 int logical_link_state;
955 struct ibmvnic_login_buffer *login_buf;
956 dma_addr_t login_buf_token;
959 struct ibmvnic_login_rsp_buffer *login_rsp_buf;
960 dma_addr_t login_rsp_buf_token;
961 int login_rsp_buf_sz;
963 atomic_t running_cap_crqs;
965 struct ibmvnic_sub_crq_queue **tx_scrq ____cacheline_aligned;
966 struct ibmvnic_sub_crq_queue **rx_scrq ____cacheline_aligned;
969 struct napi_struct *napi;
970 struct ibmvnic_rx_pool *rx_pool;
973 struct ibmvnic_tx_pool *tx_pool;
974 struct ibmvnic_tx_pool *tso_pool;
975 struct completion probe_done;
976 struct completion init_done;
979 struct completion fw_done;
980 /* Used for serialization of device commands */
981 struct mutex fw_lock;
984 struct completion reset_done;
988 /* CPU hotplug instances for online & dead */
989 struct hlist_node node;
990 struct hlist_node node_dead;
992 /* partner capabilities */
995 u64 min_rx_add_queues;
998 u64 max_rx_add_queues;
1001 u64 req_rx_add_queues;
1002 u64 min_tx_entries_per_subcrq;
1003 u64 min_rx_add_entries_per_subcrq;
1004 u64 max_tx_entries_per_subcrq;
1005 u64 max_rx_add_entries_per_subcrq;
1006 u64 req_tx_entries_per_subcrq;
1007 u64 req_rx_add_entries_per_subcrq;
1009 u64 promisc_requested;
1010 u64 promisc_supported;
1015 u64 max_multicast_filters;
1016 u64 vlan_header_insertion;
1017 u64 rx_vlan_header_insertion;
1018 u64 max_tx_sg_entries;
1019 u64 rx_sg_supported;
1020 u64 rx_sg_requested;
1021 u64 opt_tx_comp_sub_queues;
1022 u64 opt_rx_comp_queues;
1023 u64 opt_rx_bufadd_q_per_rx_comp_q;
1024 u64 opt_tx_entries_per_subcrq;
1025 u64 opt_rxba_entries_per_subcrq;
1026 __be64 tx_rx_desc_req;
1027 #define MAX_MAP_ID 255
1028 DECLARE_BITMAP(map_ids, MAX_MAP_ID);
1029 u32 num_active_rx_scrqs;
1030 u32 num_active_rx_pools;
1031 u32 num_active_rx_napi;
1032 u32 num_active_tx_scrqs;
1033 u32 num_active_tx_pools;
1035 u32 prev_rx_pool_size;
1036 u32 prev_tx_pool_size;
1040 struct tasklet_struct tasklet;
1041 enum vnic_state state;
1042 /* Used for serialization of state field. When taking both state
1043 * and rwi locks, take state lock first.
1045 spinlock_t state_lock;
1046 enum ibmvnic_reset_reason reset_reason;
1047 struct list_head rwi_list;
1048 /* Used for serialization of rwi_list. When taking both state
1049 * and rwi locks, take state lock first
1051 spinlock_t rwi_lock;
1052 struct work_struct ibmvnic_reset;
1053 struct delayed_work ibmvnic_delayed_reset;
1054 unsigned long resetting;
1055 /* last device reset time */
1056 unsigned long last_reset_time;
1059 bool from_passive_init;
1061 /* protected by rcu */
1062 bool tx_queues_active;
1063 bool failover_pending;
1064 bool force_reset_recovery;
1066 struct ibmvnic_tunables desired;
1067 struct ibmvnic_tunables fallback;