| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Thomas Falcon | 2949 | 87.66% | 23 | 35.38% |
| John Allen | 101 | 3.00% | 7 | 10.77% |
| Nathan Fontenot | 83 | 2.47% | 6 | 9.23% |
| Sukadev Bhattiprolu | 64 | 1.90% | 10 | 15.38% |
| Desnes Augusto Nunes do Rosario | 56 | 1.66% | 1 | 1.54% |
| Murilo Fossa Vicentini | 54 | 1.61% | 4 | 6.15% |
| Juliet Kim | 17 | 0.51% | 3 | 4.62% |
| Nick Child | 12 | 0.36% | 2 | 3.08% |
| Dany Madden | 7 | 0.21% | 2 | 3.08% |
| Cristobal Forno | 7 | 0.21% | 2 | 3.08% |
| Lijun Pan | 6 | 0.18% | 2 | 3.08% |
| Dwip N. Banerjee | 5 | 0.15% | 1 | 1.54% |
| Jakub Kiciński | 2 | 0.06% | 1 | 1.54% |
| Thomas Gleixner | 1 | 0.03% | 1 | 1.54% |
| Total | 3364 | 65 |
/* SPDX-License-Identifier: GPL-2.0-or-later */ /**************************************************************************/ /* */ /* IBM System i and System p Virtual NIC Device Driver */ /* Copyright (C) 2014 IBM Corp. */ /* Santiago Leon (santi_leon@yahoo.com) */ /* Thomas Falcon (tlfalcon@linux.vnet.ibm.com) */ /* John Allen (jallen@linux.vnet.ibm.com) */ /* */ /* */ /* This module contains the implementation of a virtual ethernet device */ /* for use with IBM i/pSeries LPAR Linux. It utilizes the logical LAN */ /* option of the RS/6000 Platform Architecture to interface with virtual */ /* ethernet NICs that are presented to the partition by the hypervisor. */ /* */ /**************************************************************************/ #define IBMVNIC_NAME "ibmvnic" #define IBMVNIC_DRIVER_VERSION "1.0.1" #define IBMVNIC_INVALID_MAP -1 #define IBMVNIC_OPEN_FAILED 3 /* basic structures plus 100 2k buffers */ #define IBMVNIC_IO_ENTITLEMENT_DEFAULT 610305 /* Initial module_parameters */ #define IBMVNIC_RX_WEIGHT 16 /* when changing this, update IBMVNIC_IO_ENTITLEMENT_DEFAULT */ #define IBMVNIC_BUFFS_PER_POOL 100 #define IBMVNIC_MAX_QUEUES 16 #define IBMVNIC_MAX_QUEUE_SZ 4096 #define IBMVNIC_MAX_IND_DESCS 16 #define IBMVNIC_IND_ARR_SZ (IBMVNIC_MAX_IND_DESCS * 32) #define IBMVNIC_TSO_BUF_SZ 65536 #define IBMVNIC_TSO_BUFS 64 #define IBMVNIC_TSO_POOL_MASK 0x80000000 /* A VNIC adapter has set of Rx and Tx pools (aka queues). Each Rx/Tx pool * has a set of buffers. The size of each buffer is determined by the MTU. * * Each Rx/Tx pool is also associated with a DMA region that is shared * with the "hardware" (VIOS) and used to send/receive packets. The DMA * region is also referred to as a Long Term Buffer or LTB. * * The size of the DMA region required for an Rx/Tx pool depends on the * number and size (MTU) of the buffers in the pool. At the max levels * of 4096 jumbo frames (MTU=9000) we will need about 9K*4K = 36MB plus * some padding. * * But the size of a single DMA region is limited by MAX_ORDER in the * kernel (about 16MB currently). To support say 4K Jumbo frames, we * use a set of LTBs (struct ltb_set) per pool. * * IBMVNIC_ONE_LTB_MAX - max size of each LTB supported by kernel * IBMVNIC_ONE_LTB_SIZE - current max size of each LTB in an ltb_set * (must be <= IBMVNIC_ONE_LTB_MAX) * IBMVNIC_LTB_SET_SIZE - current size of all LTBs in an ltb_set * * Each VNIC can have upto 16 Rx, 16 Tx and 16 TSO pools. The TSO pools * are of fixed length (IBMVNIC_TSO_BUF_SZ * IBMVNIC_TSO_BUFS) of 4MB. * * The Rx and Tx pools can have upto 4096 buffers. The max size of these * buffers is about 9588 (for jumbo frames, including IBMVNIC_BUFFER_HLEN). * So, setting the IBMVNIC_LTB_SET_SIZE for a pool to 4096 * 9588 ~= 38MB. * * There is a trade-off in setting IBMVNIC_ONE_LTB_SIZE. If it is large, * the allocation of the LTB can fail when system is low in memory. If * its too small, we would need several mappings for each of the Rx/ * Tx/TSO pools but there is a limit of 255 mappings per vnic in the * VNIC protocol. * * So setting IBMVNIC_ONE_LTB_SIZE to 8MB. With IBMVNIC_LTB_SET_SIZE set * to 38MB, we will need 5 LTBs per Rx and Tx pool and 1 LTB per TSO * pool for the 4MB. Thus the 16 Rx and Tx queues require 32 * 5 = 160 * plus 16 for the TSO pools for a total of 176 LTB mappings per VNIC. */ #define IBMVNIC_ONE_LTB_MAX ((u32)((1 << (MAX_ORDER - 1)) * PAGE_SIZE)) #define IBMVNIC_ONE_LTB_SIZE min((u32)(8 << 20), IBMVNIC_ONE_LTB_MAX) #define IBMVNIC_LTB_SET_SIZE (38 << 20) #define IBMVNIC_BUFFER_HLEN 500 #define IBMVNIC_RESET_DELAY 100 struct ibmvnic_login_buffer { __be32 len; __be32 version; #define INITIAL_VERSION_LB 1 __be32 num_txcomp_subcrqs; __be32 off_txcomp_subcrqs; __be32 num_rxcomp_subcrqs; __be32 off_rxcomp_subcrqs; __be32 login_rsp_ioba; __be32 login_rsp_len; __be32 client_data_offset; __be32 client_data_len; } __packed __aligned(8); struct ibmvnic_login_rsp_buffer { __be32 len; __be32 version; #define INITIAL_VERSION_LRB 1 __be32 num_txsubm_subcrqs; __be32 off_txsubm_subcrqs; __be32 num_rxadd_subcrqs; __be32 off_rxadd_subcrqs; __be32 off_rxadd_buff_size; __be32 num_supp_tx_desc; __be32 off_supp_tx_desc; } __packed __aligned(8); struct ibmvnic_query_ip_offload_buffer { __be32 len; __be32 version; #define INITIAL_VERSION_IOB 1 u8 ipv4_chksum; u8 ipv6_chksum; u8 tcp_ipv4_chksum; u8 tcp_ipv6_chksum; u8 udp_ipv4_chksum; u8 udp_ipv6_chksum; u8 large_tx_ipv4; u8 large_tx_ipv6; u8 large_rx_ipv4; u8 large_rx_ipv6; u8 reserved1[14]; __be16 max_ipv4_header_size; __be16 max_ipv6_header_size; __be16 max_tcp_header_size; __be16 max_udp_header_size; __be32 max_large_tx_size; __be32 max_large_rx_size; u8 reserved2[16]; u8 ipv6_extension_header; #define IPV6_EH_NOT_SUPPORTED 0x00 #define IPV6_EH_SUPPORTED_LIM 0x01 #define IPV6_EH_SUPPORTED 0xFF u8 tcp_pseudosum_req; #define TCP_PS_NOT_REQUIRED 0x00 #define TCP_PS_REQUIRED 0x01 u8 reserved3[30]; __be16 num_ipv6_ext_headers; __be32 off_ipv6_ext_headers; u8 reserved4[154]; } __packed __aligned(8); struct ibmvnic_control_ip_offload_buffer { __be32 len; __be32 version; #define INITIAL_VERSION_IOB 1 u8 ipv4_chksum; u8 ipv6_chksum; u8 tcp_ipv4_chksum; u8 tcp_ipv6_chksum; u8 udp_ipv4_chksum; u8 udp_ipv6_chksum; u8 large_tx_ipv4; u8 large_tx_ipv6; u8 bad_packet_rx; u8 large_rx_ipv4; u8 large_rx_ipv6; u8 reserved4[111]; } __packed __aligned(8); struct ibmvnic_fw_component { u8 name[48]; __be32 trace_buff_size; u8 correlator; u8 trace_level; u8 parent_correlator; u8 error_check_level; u8 trace_on; u8 reserved[7]; u8 description[192]; } __packed __aligned(8); struct ibmvnic_fw_trace_entry { __be32 trace_id; u8 num_valid_data; u8 reserved[3]; __be64 pmc_registers; __be64 timebase; __be64 trace_data[5]; } __packed __aligned(8); struct ibmvnic_statistics { __be32 version; __be32 promiscuous; __be64 rx_packets; __be64 rx_bytes; __be64 tx_packets; __be64 tx_bytes; __be64 ucast_tx_packets; __be64 ucast_rx_packets; __be64 mcast_tx_packets; __be64 mcast_rx_packets; __be64 bcast_tx_packets; __be64 bcast_rx_packets; __be64 align_errors; __be64 fcs_errors; __be64 single_collision_frames; __be64 multi_collision_frames; __be64 sqe_test_errors; __be64 deferred_tx; __be64 late_collisions; __be64 excess_collisions; __be64 internal_mac_tx_errors; __be64 carrier_sense; __be64 too_long_frames; __be64 internal_mac_rx_errors; u8 reserved[72]; } __packed __aligned(8); #define NUM_TX_STATS 3 struct ibmvnic_tx_queue_stats { u64 packets; u64 bytes; u64 dropped_packets; }; #define NUM_RX_STATS 3 struct ibmvnic_rx_queue_stats { u64 packets; u64 bytes; u64 interrupts; }; struct ibmvnic_acl_buffer { __be32 len; __be32 version; #define INITIAL_VERSION_IOB 1 u8 mac_acls_restrict; u8 vlan_acls_restrict; u8 reserved1[22]; __be32 num_mac_addrs; __be32 offset_mac_addrs; __be32 num_vlan_ids; __be32 offset_vlan_ids; u8 reserved2[80]; } __packed __aligned(8); /* descriptors have been changed, how should this be defined? 1? 4? */ #define IBMVNIC_TX_DESC_VERSIONS 3 /* is this still needed? */ struct ibmvnic_tx_comp_desc { u8 first; u8 num_comps; __be16 rcs[5]; __be32 correlators[5]; } __packed __aligned(8); /* some flags that included in v0 descriptor, which is gone * only used for IBMVNIC_TCP_CHKSUM and IBMVNIC_UDP_CHKSUM * and only in some offload_flags variable that doesn't seem * to be used anywhere, can probably be removed? */ #define IBMVNIC_TCP_CHKSUM 0x20 #define IBMVNIC_UDP_CHKSUM 0x08 struct ibmvnic_tx_desc { u8 first; u8 type; #define IBMVNIC_TX_DESC 0x10 u8 n_crq_elem; u8 n_sge; u8 flags1; #define IBMVNIC_TX_COMP_NEEDED 0x80 #define IBMVNIC_TX_CHKSUM_OFFLOAD 0x40 #define IBMVNIC_TX_LSO 0x20 #define IBMVNIC_TX_PROT_TCP 0x10 #define IBMVNIC_TX_PROT_UDP 0x08 #define IBMVNIC_TX_PROT_IPV4 0x04 #define IBMVNIC_TX_PROT_IPV6 0x02 #define IBMVNIC_TX_VLAN_PRESENT 0x01 u8 flags2; #define IBMVNIC_TX_VLAN_INSERT 0x80 __be16 mss; u8 reserved[4]; __be32 correlator; __be16 vlan_id; __be16 dma_reg; __be32 sge_len; __be64 ioba; } __packed __aligned(8); struct ibmvnic_hdr_desc { u8 first; u8 type; #define IBMVNIC_HDR_DESC 0x11 u8 len; u8 l2_len; __be16 l3_len; u8 l4_len; u8 flag; u8 data[24]; } __packed __aligned(8); struct ibmvnic_hdr_ext_desc { u8 first; u8 type; #define IBMVNIC_HDR_EXT_DESC 0x12 u8 len; u8 data[29]; } __packed __aligned(8); struct ibmvnic_sge_desc { u8 first; u8 type; #define IBMVNIC_SGE_DESC 0x30 __be16 sge1_dma_reg; __be32 sge1_len; __be64 sge1_ioba; __be16 reserved; __be16 sge2_dma_reg; __be32 sge2_len; __be64 sge2_ioba; } __packed __aligned(8); struct ibmvnic_rx_comp_desc { u8 first; u8 flags; #define IBMVNIC_IP_CHKSUM_GOOD 0x80 #define IBMVNIC_TCP_UDP_CHKSUM_GOOD 0x40 #define IBMVNIC_END_FRAME 0x20 #define IBMVNIC_EXACT_MC 0x10 #define IBMVNIC_VLAN_STRIPPED 0x08 __be16 off_frame_data; __be32 len; __be64 correlator; __be16 vlan_tci; __be16 rc; u8 reserved[12]; } __packed __aligned(8); struct ibmvnic_generic_scrq { u8 first; u8 reserved[31]; } __packed __aligned(8); struct ibmvnic_rx_buff_add_desc { u8 first; u8 reserved[7]; __be64 correlator; __be32 ioba; u8 map_id; __be32 len:24; u8 reserved2[8]; } __packed __aligned(8); struct ibmvnic_rc { u8 code; /* one of enum ibmvnic_rc_codes */ u8 detailed_data[3]; } __packed __aligned(4); struct ibmvnic_generic_crq { u8 first; u8 cmd; u8 params[10]; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_version_exchange { u8 first; u8 cmd; __be16 version; #define IBMVNIC_INITIAL_VERSION 1 u8 reserved[8]; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_capability { u8 first; u8 cmd; __be16 capability; /* one of ibmvnic_capabilities */ __be64 number; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_login { u8 first; u8 cmd; u8 reserved[6]; __be32 ioba; __be32 len; } __packed __aligned(8); struct ibmvnic_phys_parms { u8 first; u8 cmd; u8 flags1; #define IBMVNIC_EXTERNAL_LOOPBACK 0x80 #define IBMVNIC_INTERNAL_LOOPBACK 0x40 #define IBMVNIC_PROMISC 0x20 #define IBMVNIC_PHYS_LINK_ACTIVE 0x10 #define IBMVNIC_AUTONEG_DUPLEX 0x08 #define IBMVNIC_FULL_DUPLEX 0x04 #define IBMVNIC_HALF_DUPLEX 0x02 #define IBMVNIC_CAN_CHG_PHYS_PARMS 0x01 u8 flags2; #define IBMVNIC_LOGICAL_LNK_ACTIVE 0x80 __be32 speed; #define IBMVNIC_AUTONEG 0x80000000 #define IBMVNIC_10MBPS 0x40000000 #define IBMVNIC_100MBPS 0x20000000 #define IBMVNIC_1GBPS 0x10000000 #define IBMVNIC_10GBPS 0x08000000 #define IBMVNIC_40GBPS 0x04000000 #define IBMVNIC_100GBPS 0x02000000 #define IBMVNIC_25GBPS 0x01000000 #define IBMVNIC_50GBPS 0x00800000 #define IBMVNIC_200GBPS 0x00400000 __be32 mtu; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_logical_link_state { u8 first; u8 cmd; u8 link_state; #define IBMVNIC_LOGICAL_LNK_DN 0x00 #define IBMVNIC_LOGICAL_LNK_UP 0x01 #define IBMVNIC_LOGICAL_LNK_QUERY 0xff u8 reserved[9]; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_query_ip_offload { u8 first; u8 cmd; u8 reserved[2]; __be32 len; __be32 ioba; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_control_ip_offload { u8 first; u8 cmd; u8 reserved[2]; __be32 ioba; __be32 len; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_request_statistics { u8 first; u8 cmd; u8 flags; #define IBMVNIC_PHYSICAL_PORT 0x80 u8 reserved1; __be32 ioba; __be32 len; u8 reserved[4]; } __packed __aligned(8); struct ibmvnic_error_indication { u8 first; u8 cmd; u8 flags; #define IBMVNIC_FATAL_ERROR 0x80 u8 reserved1; __be32 error_id; __be32 detail_error_sz; __be16 error_cause; u8 reserved2[2]; } __packed __aligned(8); struct ibmvnic_link_state_indication { u8 first; u8 cmd; u8 reserved1[2]; u8 phys_link_state; u8 logical_link_state; u8 reserved2[10]; } __packed __aligned(8); struct ibmvnic_change_mac_addr { u8 first; u8 cmd; u8 mac_addr[6]; u8 reserved[4]; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_multicast_ctrl { u8 first; u8 cmd; u8 mac_addr[6]; u8 flags; #define IBMVNIC_ENABLE_MC 0x80 #define IBMVNIC_DISABLE_MC 0x40 #define IBMVNIC_ENABLE_ALL 0x20 #define IBMVNIC_DISABLE_ALL 0x10 u8 reserved1; __be16 reserved2; /* was num_enabled_mc_addr; */ struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_get_vpd_size { u8 first; u8 cmd; u8 reserved[14]; } __packed __aligned(8); struct ibmvnic_get_vpd_size_rsp { u8 first; u8 cmd; u8 reserved[2]; __be64 len; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_get_vpd { u8 first; u8 cmd; u8 reserved1[2]; __be32 ioba; __be32 len; u8 reserved[4]; } __packed __aligned(8); struct ibmvnic_get_vpd_rsp { u8 first; u8 cmd; u8 reserved[10]; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_acl_change_indication { u8 first; u8 cmd; __be16 change_type; #define IBMVNIC_MAC_ACL 0 #define IBMVNIC_VLAN_ACL 1 u8 reserved[12]; } __packed __aligned(8); struct ibmvnic_acl_query { u8 first; u8 cmd; u8 reserved1[2]; __be32 ioba; __be32 len; u8 reserved2[4]; } __packed __aligned(8); struct ibmvnic_tune { u8 first; u8 cmd; u8 reserved1[2]; __be32 ioba; __be32 len; u8 reserved2[4]; } __packed __aligned(8); struct ibmvnic_request_map { u8 first; u8 cmd; u8 reserved1; u8 map_id; __be32 ioba; __be32 len; u8 reserved2[4]; } __packed __aligned(8); struct ibmvnic_request_map_rsp { u8 first; u8 cmd; u8 reserved1; u8 map_id; u8 reserved2[8]; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_request_unmap { u8 first; u8 cmd; u8 reserved1; u8 map_id; u8 reserved2[12]; } __packed __aligned(8); struct ibmvnic_request_unmap_rsp { u8 first; u8 cmd; u8 reserved1; u8 map_id; u8 reserved2[8]; struct ibmvnic_rc rc; } __packed __aligned(8); struct ibmvnic_query_map { u8 first; u8 cmd; u8 reserved[14]; } __packed __aligned(8); struct ibmvnic_query_map_rsp { u8 first; u8 cmd; u8 reserved; u8 page_size; __be32 tot_pages; __be32 free_pages; struct ibmvnic_rc rc; } __packed __aligned(8); union ibmvnic_crq { struct ibmvnic_generic_crq generic; struct ibmvnic_version_exchange version_exchange; struct ibmvnic_version_exchange version_exchange_rsp; struct ibmvnic_capability query_capability; struct ibmvnic_capability query_capability_rsp; struct ibmvnic_capability request_capability; struct ibmvnic_capability request_capability_rsp; struct ibmvnic_login login; struct ibmvnic_generic_crq login_rsp; struct ibmvnic_phys_parms query_phys_parms; struct ibmvnic_phys_parms query_phys_parms_rsp; struct ibmvnic_phys_parms query_phys_capabilities; struct ibmvnic_phys_parms query_phys_capabilities_rsp; struct ibmvnic_phys_parms set_phys_parms; struct ibmvnic_phys_parms set_phys_parms_rsp; struct ibmvnic_logical_link_state logical_link_state; struct ibmvnic_logical_link_state logical_link_state_rsp; struct ibmvnic_query_ip_offload query_ip_offload; struct ibmvnic_query_ip_offload query_ip_offload_rsp; struct ibmvnic_control_ip_offload control_ip_offload; struct ibmvnic_control_ip_offload control_ip_offload_rsp; struct ibmvnic_request_statistics request_statistics; struct ibmvnic_generic_crq request_statistics_rsp; struct ibmvnic_error_indication error_indication; struct ibmvnic_link_state_indication link_state_indication; struct ibmvnic_change_mac_addr change_mac_addr; struct ibmvnic_change_mac_addr change_mac_addr_rsp; struct ibmvnic_multicast_ctrl multicast_ctrl; struct ibmvnic_multicast_ctrl multicast_ctrl_rsp; struct ibmvnic_get_vpd_size get_vpd_size; struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp; struct ibmvnic_get_vpd get_vpd; struct ibmvnic_get_vpd_rsp get_vpd_rsp; struct ibmvnic_acl_change_indication acl_change_indication; struct ibmvnic_acl_query acl_query; struct ibmvnic_generic_crq acl_query_rsp; struct ibmvnic_tune tune; struct ibmvnic_generic_crq tune_rsp; struct ibmvnic_request_map request_map; struct ibmvnic_request_map_rsp request_map_rsp; struct ibmvnic_request_unmap request_unmap; struct ibmvnic_request_unmap_rsp request_unmap_rsp; struct ibmvnic_query_map query_map; struct ibmvnic_query_map_rsp query_map_rsp; }; enum ibmvnic_rc_codes { SUCCESS = 0, PARTIALSUCCESS = 1, PERMISSION = 2, NOMEMORY = 3, PARAMETER = 4, UNKNOWNCOMMAND = 5, ABORTED = 6, INVALIDSTATE = 7, INVALIDIOBA = 8, INVALIDLENGTH = 9, UNSUPPORTEDOPTION = 10, }; enum ibmvnic_capabilities { MIN_TX_QUEUES = 1, MIN_RX_QUEUES = 2, MIN_RX_ADD_QUEUES = 3, MAX_TX_QUEUES = 4, MAX_RX_QUEUES = 5, MAX_RX_ADD_QUEUES = 6, REQ_TX_QUEUES = 7, REQ_RX_QUEUES = 8, REQ_RX_ADD_QUEUES = 9, MIN_TX_ENTRIES_PER_SUBCRQ = 10, MIN_RX_ADD_ENTRIES_PER_SUBCRQ = 11, MAX_TX_ENTRIES_PER_SUBCRQ = 12, MAX_RX_ADD_ENTRIES_PER_SUBCRQ = 13, REQ_TX_ENTRIES_PER_SUBCRQ = 14, REQ_RX_ADD_ENTRIES_PER_SUBCRQ = 15, TCP_IP_OFFLOAD = 16, PROMISC_REQUESTED = 17, PROMISC_SUPPORTED = 18, MIN_MTU = 19, MAX_MTU = 20, REQ_MTU = 21, MAX_MULTICAST_FILTERS = 22, VLAN_HEADER_INSERTION = 23, RX_VLAN_HEADER_INSERTION = 24, MAX_TX_SG_ENTRIES = 25, RX_SG_SUPPORTED = 26, RX_SG_REQUESTED = 27, OPT_TX_COMP_SUB_QUEUES = 28, OPT_RX_COMP_QUEUES = 29, OPT_RX_BUFADD_Q_PER_RX_COMP_Q = 30, OPT_TX_ENTRIES_PER_SUBCRQ = 31, OPT_RXBA_ENTRIES_PER_SUBCRQ = 32, TX_RX_DESC_REQ = 33, }; enum ibmvnic_error_cause { ADAPTER_PROBLEM = 0, BUS_PROBLEM = 1, FW_PROBLEM = 2, DD_PROBLEM = 3, EEH_RECOVERY = 4, FW_UPDATED = 5, LOW_MEMORY = 6, }; enum ibmvnic_commands { VERSION_EXCHANGE = 0x01, VERSION_EXCHANGE_RSP = 0x81, QUERY_CAPABILITY = 0x02, QUERY_CAPABILITY_RSP = 0x82, REQUEST_CAPABILITY = 0x03, REQUEST_CAPABILITY_RSP = 0x83, LOGIN = 0x04, LOGIN_RSP = 0x84, QUERY_PHYS_PARMS = 0x05, QUERY_PHYS_PARMS_RSP = 0x85, QUERY_PHYS_CAPABILITIES = 0x06, QUERY_PHYS_CAPABILITIES_RSP = 0x86, SET_PHYS_PARMS = 0x07, SET_PHYS_PARMS_RSP = 0x87, ERROR_INDICATION = 0x08, LOGICAL_LINK_STATE = 0x0C, LOGICAL_LINK_STATE_RSP = 0x8C, REQUEST_STATISTICS = 0x0D, REQUEST_STATISTICS_RSP = 0x8D, COLLECT_FW_TRACE = 0x11, COLLECT_FW_TRACE_RSP = 0x91, LINK_STATE_INDICATION = 0x12, CHANGE_MAC_ADDR = 0x13, CHANGE_MAC_ADDR_RSP = 0x93, MULTICAST_CTRL = 0x14, MULTICAST_CTRL_RSP = 0x94, GET_VPD_SIZE = 0x15, GET_VPD_SIZE_RSP = 0x95, GET_VPD = 0x16, GET_VPD_RSP = 0x96, TUNE = 0x17, TUNE_RSP = 0x97, QUERY_IP_OFFLOAD = 0x18, QUERY_IP_OFFLOAD_RSP = 0x98, CONTROL_IP_OFFLOAD = 0x19, CONTROL_IP_OFFLOAD_RSP = 0x99, ACL_CHANGE_INDICATION = 0x1A, ACL_QUERY = 0x1B, ACL_QUERY_RSP = 0x9B, QUERY_MAP = 0x1D, QUERY_MAP_RSP = 0x9D, REQUEST_MAP = 0x1E, REQUEST_MAP_RSP = 0x9E, REQUEST_UNMAP = 0x1F, REQUEST_UNMAP_RSP = 0x9F, VLAN_CTRL = 0x20, VLAN_CTRL_RSP = 0xA0, }; enum ibmvnic_crq_type { IBMVNIC_CRQ_CMD = 0x80, IBMVNIC_CRQ_CMD_RSP = 0x80, IBMVNIC_CRQ_INIT_CMD = 0xC0, IBMVNIC_CRQ_INIT_RSP = 0xC0, IBMVNIC_CRQ_XPORT_EVENT = 0xFF, }; enum ibmvfc_crq_format { IBMVNIC_CRQ_INIT = 0x01, IBMVNIC_CRQ_INIT_COMPLETE = 0x02, IBMVNIC_PARTITION_MIGRATED = 0x06, IBMVNIC_DEVICE_FAILOVER = 0x08, }; struct ibmvnic_crq_queue { union ibmvnic_crq *msgs; int size, cur; dma_addr_t msg_token; /* Used for serialization of msgs, cur */ spinlock_t lock; bool active; char name[32]; }; union sub_crq { struct ibmvnic_generic_scrq generic; struct ibmvnic_tx_comp_desc tx_comp; struct ibmvnic_tx_desc v1; struct ibmvnic_hdr_desc hdr; struct ibmvnic_hdr_ext_desc hdr_ext; struct ibmvnic_sge_desc sge; struct ibmvnic_rx_comp_desc rx_comp; struct ibmvnic_rx_buff_add_desc rx_add; }; struct ibmvnic_ind_xmit_queue { union sub_crq *indir_arr; dma_addr_t indir_dma; int index; }; struct ibmvnic_sub_crq_queue { union sub_crq *msgs; int size, cur; dma_addr_t msg_token; unsigned long crq_num; unsigned long hw_irq; unsigned int irq; unsigned int pool_index; int scrq_num; /* Used for serialization of msgs, cur */ spinlock_t lock; struct sk_buff *rx_skb_top; struct ibmvnic_adapter *adapter; struct ibmvnic_ind_xmit_queue ind_buf; atomic_t used; char name[32]; u64 handle; cpumask_var_t affinity_mask; } ____cacheline_aligned; struct ibmvnic_long_term_buff { unsigned char *buff; dma_addr_t addr; u64 size; u8 map_id; }; struct ibmvnic_ltb_set { int num_ltbs; struct ibmvnic_long_term_buff *ltbs; }; struct ibmvnic_tx_buff { struct sk_buff *skb; int index; int pool_index; int num_entries; }; struct ibmvnic_tx_pool { struct ibmvnic_tx_buff *tx_buff; int *free_map; int consumer_index; int producer_index; struct ibmvnic_ltb_set ltb_set; int num_buffers; int buf_size; } ____cacheline_aligned; struct ibmvnic_rx_buff { struct sk_buff *skb; dma_addr_t dma; unsigned char *data; int size; int pool_index; }; struct ibmvnic_rx_pool { struct ibmvnic_rx_buff *rx_buff; int size; /* # of buffers in the pool */ int index; int buff_size; atomic_t available; int *free_map; int next_free; int next_alloc; int active; struct ibmvnic_ltb_set ltb_set; } ____cacheline_aligned; struct ibmvnic_vpd { unsigned char *buff; dma_addr_t dma_addr; u64 len; }; enum vnic_state {VNIC_PROBING = 1, VNIC_PROBED, VNIC_OPENING, VNIC_OPEN, VNIC_CLOSING, VNIC_CLOSED, VNIC_REMOVING, VNIC_REMOVED, VNIC_DOWN}; enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1, VNIC_RESET_MOBILITY, VNIC_RESET_FATAL, VNIC_RESET_NON_FATAL, VNIC_RESET_TIMEOUT, VNIC_RESET_CHANGE_PARAM, VNIC_RESET_PASSIVE_INIT}; struct ibmvnic_rwi { enum ibmvnic_reset_reason reset_reason; struct list_head list; }; struct ibmvnic_tunables { u64 rx_queues; u64 tx_queues; u64 rx_entries; u64 tx_entries; u64 mtu; }; struct ibmvnic_adapter { struct vio_dev *vdev; struct net_device *netdev; struct ibmvnic_crq_queue crq; u8 mac_addr[ETH_ALEN]; struct ibmvnic_query_ip_offload_buffer ip_offload_buf; dma_addr_t ip_offload_tok; struct ibmvnic_control_ip_offload_buffer ip_offload_ctrl; dma_addr_t ip_offload_ctrl_tok; u32 msg_enable; /* Vital Product Data (VPD) */ struct ibmvnic_vpd *vpd; char fw_version[32]; /* Statistics */ struct ibmvnic_statistics stats; dma_addr_t stats_token; struct completion stats_done; int replenish_no_mem; int replenish_add_buff_success; int replenish_add_buff_failure; int replenish_task_cycles; int tx_send_failed; int tx_map_failed; struct ibmvnic_tx_queue_stats *tx_stats_buffers; struct ibmvnic_rx_queue_stats *rx_stats_buffers; int phys_link_state; int logical_link_state; u32 speed; u8 duplex; /* login data */ struct ibmvnic_login_buffer *login_buf; dma_addr_t login_buf_token; int login_buf_sz; struct ibmvnic_login_rsp_buffer *login_rsp_buf; dma_addr_t login_rsp_buf_token; int login_rsp_buf_sz; atomic_t running_cap_crqs; struct ibmvnic_sub_crq_queue **tx_scrq ____cacheline_aligned; struct ibmvnic_sub_crq_queue **rx_scrq ____cacheline_aligned; /* rx structs */ struct napi_struct *napi; struct ibmvnic_rx_pool *rx_pool; u64 promisc; struct ibmvnic_tx_pool *tx_pool; struct ibmvnic_tx_pool *tso_pool; struct completion probe_done; struct completion init_done; int init_done_rc; struct completion fw_done; /* Used for serialization of device commands */ struct mutex fw_lock; int fw_done_rc; struct completion reset_done; int reset_done_rc; bool wait_for_reset; /* CPU hotplug instances for online & dead */ struct hlist_node node; struct hlist_node node_dead; /* partner capabilities */ u64 min_tx_queues; u64 min_rx_queues; u64 min_rx_add_queues; u64 max_tx_queues; u64 max_rx_queues; u64 max_rx_add_queues; u64 req_tx_queues; u64 req_rx_queues; u64 req_rx_add_queues; u64 min_tx_entries_per_subcrq; u64 min_rx_add_entries_per_subcrq; u64 max_tx_entries_per_subcrq; u64 max_rx_add_entries_per_subcrq; u64 req_tx_entries_per_subcrq; u64 req_rx_add_entries_per_subcrq; u64 tcp_ip_offload; u64 promisc_requested; u64 promisc_supported; u64 min_mtu; u64 max_mtu; u64 req_mtu; u64 prev_mtu; u64 max_multicast_filters; u64 vlan_header_insertion; u64 rx_vlan_header_insertion; u64 max_tx_sg_entries; u64 rx_sg_supported; u64 rx_sg_requested; u64 opt_tx_comp_sub_queues; u64 opt_rx_comp_queues; u64 opt_rx_bufadd_q_per_rx_comp_q; u64 opt_tx_entries_per_subcrq; u64 opt_rxba_entries_per_subcrq; __be64 tx_rx_desc_req; #define MAX_MAP_ID 255 DECLARE_BITMAP(map_ids, MAX_MAP_ID); u32 num_active_rx_scrqs; u32 num_active_rx_pools; u32 num_active_rx_napi; u32 num_active_tx_scrqs; u32 num_active_tx_pools; u32 prev_rx_pool_size; u32 prev_tx_pool_size; u32 cur_rx_buf_sz; u32 prev_rx_buf_sz; struct tasklet_struct tasklet; enum vnic_state state; /* Used for serialization of state field. When taking both state * and rwi locks, take state lock first. */ spinlock_t state_lock; enum ibmvnic_reset_reason reset_reason; struct list_head rwi_list; /* Used for serialization of rwi_list. When taking both state * and rwi locks, take state lock first */ spinlock_t rwi_lock; struct work_struct ibmvnic_reset; struct delayed_work ibmvnic_delayed_reset; unsigned long resetting; /* last device reset time */ unsigned long last_reset_time; bool napi_enabled; bool from_passive_init; bool login_pending; /* protected by rcu */ bool tx_queues_active; bool failover_pending; bool force_reset_recovery; struct ibmvnic_tunables desired; struct ibmvnic_tunables fallback; };
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