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linux/drivers/net/ethernet/ibm/ibmvnic.h
Thomas Falcon 249168ad07 ibmvnic: Make CRQ interrupt tasklet wait for all capabilities crqs 
After sending device capability queries and requests to the vNIC Server,
an interrupt is triggered and the responses are written to the driver's
CRQ response buffer. Since the interrupt can be triggered before all
responses are written and visible to the partition, there is a danger
that the interrupt handler or tasklet can terminate before all responses
are read, resulting in a failure to initialize the device.

To avoid this scenario, when capability commands are sent, we set
a flag that will be checked in the following interrupt tasklet that
will handle the capability responses from the server. Once all
responses have been handled, the flag is disabled; and the tasklet
is allowed to terminate.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-19 18:12:03 -05:00

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/**************************************************************************/
/* */
/* 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 program is free software; you can redistribute it and/or modify */
/* it under the terms of the GNU General Public License as published by */
/* the Free Software Foundation; either version 2 of the License, or */
/* (at your option) any later version. */
/* */
/* This program is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
/* GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License */
/* along with this program. */
/* */
/* 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_STATS_TIMEOUT 1
/* 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_TX_QUEUES 5
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;
} __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);
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
#define IBMVNIC_MAX_FRAGS_PER_CRQ 3
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 0x80
#define IBMVNIC_10MBPS 0x40
#define IBMVNIC_100MBPS 0x20
#define IBMVNIC_1GBPS 0x10
#define IBMVNIC_10GBPS 0x08
__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_dump_size {
u8 first;
u8 cmd;
u8 reserved[6];
__be32 len;
struct ibmvnic_rc rc;
} __packed __aligned(8);
struct ibmvnic_request_dump {
u8 first;
u8 cmd;
u8 reserved1[2];
__be32 ioba;
__be32 len;
u8 reserved2[4];
} __packed __aligned(8);
struct ibmvnic_request_dump_rsp {
u8 first;
u8 cmd;
u8 reserved[6];
__be32 dumped_len;
struct ibmvnic_rc rc;
} __packed __aligned(8);
struct ibmvnic_request_ras_comp_num {
u8 first;
u8 cmd;
u8 reserved1[2];
__be32 num_components;
u8 reserved2[4];
struct ibmvnic_rc rc;
} __packed __aligned(8);
struct ibmvnic_request_ras_comps {
u8 first;
u8 cmd;
u8 reserved[2];
__be32 ioba;
__be32 len;
struct ibmvnic_rc rc;
} __packed __aligned(8);
struct ibmvnic_control_ras {
u8 first;
u8 cmd;
u8 correlator;
u8 level;
u8 op;
#define IBMVNIC_TRACE_LEVEL 1
#define IBMVNIC_ERROR_LEVEL 2
#define IBMVNIC_TRACE_PAUSE 3
#define IBMVNIC_TRACE_RESUME 4
#define IBMVNIC_TRACE_ON 5
#define IBMVNIC_TRACE_OFF 6
#define IBMVNIC_CHG_TRACE_BUFF_SZ 7
u8 trace_buff_sz[3];
u8 reserved[4];
struct ibmvnic_rc rc;
} __packed __aligned(8);
struct ibmvnic_collect_fw_trace {
u8 first;
u8 cmd;
u8 correlator;
u8 reserved;
__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_request_debug_stats {
u8 first;
u8 cmd;
u8 reserved[2];
__be32 ioba;
__be32 len;
struct ibmvnic_rc rc;
} __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_request_error_info {
u8 first;
u8 cmd;
u8 reserved[2];
__be32 ioba;
__be32 len;
__be32 error_id;
} __packed __aligned(8);
struct ibmvnic_request_error_rsp {
u8 first;
u8 cmd;
u8 reserved[2];
__be32 error_id;
__be32 len;
struct ibmvnic_rc rc;
} __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];
struct ibmvnic_rc rc;
u8 reserved[4];
} __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_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_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[4];
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_dump_size request_dump_size;
struct ibmvnic_request_dump_size request_dump_size_rsp;
struct ibmvnic_request_dump request_dump;
struct ibmvnic_request_dump_rsp request_dump_rsp;
struct ibmvnic_request_ras_comp_num request_ras_comp_num;
struct ibmvnic_request_ras_comp_num request_ras_comp_num_rsp;
struct ibmvnic_request_ras_comps request_ras_comps;
struct ibmvnic_request_ras_comps request_ras_comps_rsp;
struct ibmvnic_control_ras control_ras;
struct ibmvnic_control_ras control_ras_rsp;
struct ibmvnic_collect_fw_trace collect_fw_trace;
struct ibmvnic_collect_fw_trace collect_fw_trace_rsp;
struct ibmvnic_request_statistics request_statistics;
struct ibmvnic_generic_crq request_statistics_rsp;
struct ibmvnic_request_debug_stats request_debug_stats;
struct ibmvnic_request_debug_stats request_debug_stats_rsp;
struct ibmvnic_error_indication error_indication;
struct ibmvnic_request_error_info request_error_info;
struct ibmvnic_request_error_rsp request_error_rsp;
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_generic_crq get_vpd_size;
struct ibmvnic_get_vpd_size_rsp get_vpd_size_rsp;
struct ibmvnic_get_vpd get_vpd;
struct ibmvnic_generic_crq 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,
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,
REQUEST_ERROR_INFO = 0x09,
REQUEST_ERROR_RSP = 0x89,
REQUEST_DUMP_SIZE = 0x0A,
REQUEST_DUMP_SIZE_RSP = 0x8A,
REQUEST_DUMP = 0x0B,
REQUEST_DUMP_RSP = 0x8B,
LOGICAL_LINK_STATE = 0x0C,
LOGICAL_LINK_STATE_RSP = 0x8C,
REQUEST_STATISTICS = 0x0D,
REQUEST_STATISTICS_RSP = 0x8D,
REQUEST_RAS_COMP_NUM = 0x0E,
REQUEST_RAS_COMP_NUM_RSP = 0x8E,
REQUEST_RAS_COMPS = 0x0F,
REQUEST_RAS_COMPS_RSP = 0x8F,
CONTROL_RAS = 0x10,
CONTROL_RAS_RSP = 0x90,
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,
REQUEST_DEBUG_STATS = 0x1C,
REQUEST_DEBUG_STATS_RSP = 0x9C,
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;
spinlock_t lock;
};
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_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;
spinlock_t lock;
struct sk_buff *rx_skb_top;
struct ibmvnic_adapter *adapter;
};
struct ibmvnic_long_term_buff {
unsigned char *buff;
dma_addr_t addr;
u64 size;
u8 map_id;
};
struct ibmvnic_tx_buff {
struct sk_buff *skb;
dma_addr_t data_dma[IBMVNIC_MAX_FRAGS_PER_CRQ];
unsigned int data_len[IBMVNIC_MAX_FRAGS_PER_CRQ];
int index;
int pool_index;
bool last_frag;
bool used_bounce;
union sub_crq indir_arr[6];
u8 hdr_data[140];
dma_addr_t indir_dma;
};
struct ibmvnic_tx_pool {
struct ibmvnic_tx_buff *tx_buff;
int *free_map;
int consumer_index;
int producer_index;
wait_queue_head_t ibmvnic_tx_comp_q;
struct task_struct *work_thread;
struct ibmvnic_long_term_buff long_term_buff;
};
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;
int index;
int buff_size;
atomic_t available;
int *free_map;
int next_free;
int next_alloc;
int active;
struct ibmvnic_long_term_buff long_term_buff;
};
struct ibmvnic_error_buff {
char *buff;
dma_addr_t dma;
int len;
struct list_head list;
__be32 error_id;
};
struct ibmvnic_fw_comp_internal {
struct ibmvnic_adapter *adapter;
int num;
struct debugfs_blob_wrapper desc_blob;
int paused;
};
struct ibmvnic_inflight_cmd {
union ibmvnic_crq crq;
struct list_head list;
};
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;
bool migrated;
u32 msg_enable;
void *bounce_buffer;
int bounce_buffer_size;
dma_addr_t bounce_buffer_dma;
/* Statistics */
struct net_device_stats net_stats;
struct ibmvnic_statistics stats;
dma_addr_t stats_token;
struct completion stats_done;
spinlock_t stats_lock;
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;
int phys_link_state;
int logical_link_state;
/* 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;
bool wait_capability;
struct ibmvnic_sub_crq_queue **tx_scrq;
struct ibmvnic_sub_crq_queue **rx_scrq;
bool renegotiate;
/* rx structs */
struct napi_struct *napi;
struct ibmvnic_rx_pool *rx_pool;
u64 promisc;
struct ibmvnic_tx_pool *tx_pool;
bool closing;
struct completion init_done;
struct list_head errors;
spinlock_t error_list_lock;
/* debugfs */
struct dentry *debugfs_dir;
struct dentry *debugfs_dump;
struct completion fw_done;
char *dump_data;
dma_addr_t dump_data_token;
int dump_data_size;
int ras_comp_num;
struct ibmvnic_fw_component *ras_comps;
struct ibmvnic_fw_comp_internal *ras_comp_int;
dma_addr_t ras_comps_tok;
struct dentry *ras_comps_ent;
/* in-flight commands that allocate and/or map memory*/
struct list_head inflight;
spinlock_t inflight_lock;
/* 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 max_multicast_filters;
u64 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;
u8 map_id;
struct work_struct vnic_crq_init;
struct work_struct ibmvnic_xport;
struct tasklet_struct tasklet;
bool failover;
};
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