diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx4/mlx4_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mlx4_ib.h | 341 |
1 files changed, 338 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h index c136bb618e2..e04cbc9a54a 100644 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h @@ -37,9 +37,12 @@ #include <linux/compiler.h> #include <linux/list.h> #include <linux/mutex.h> +#include <linux/idr.h> #include <rdma/ib_verbs.h> #include <rdma/ib_umem.h> +#include <rdma/ib_mad.h> +#include <rdma/ib_sa.h> #include <linux/mlx4/device.h> #include <linux/mlx4/doorbell.h> @@ -62,6 +65,9 @@ enum { #define MLX4_IB_SQ_HEADROOM(shift) ((MLX4_IB_MAX_HEADROOM >> (shift)) + 1) #define MLX4_IB_SQ_MAX_SPARE (MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT)) +/*module param to indicate if SM assigns the alias_GUID*/ +extern int mlx4_ib_sm_guid_assign; + struct mlx4_ib_ucontext { struct ib_ucontext ibucontext; struct mlx4_uar uar; @@ -133,8 +139,10 @@ struct mlx4_ib_wq { }; enum mlx4_ib_qp_flags { - MLX4_IB_QP_LSO = 1 << 0, - MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = 1 << 1, + MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO, + MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK, + MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30, + MLX4_IB_SRIOV_SQP = 1 << 31, }; struct mlx4_ib_gid_entry { @@ -144,6 +152,80 @@ struct mlx4_ib_gid_entry { u8 port; }; +enum mlx4_ib_qp_type { + /* + * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries + * here (and in that order) since the MAD layer uses them as + * indices into a 2-entry table. + */ + MLX4_IB_QPT_SMI = IB_QPT_SMI, + MLX4_IB_QPT_GSI = IB_QPT_GSI, + + MLX4_IB_QPT_RC = IB_QPT_RC, + MLX4_IB_QPT_UC = IB_QPT_UC, + MLX4_IB_QPT_UD = IB_QPT_UD, + MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6, + MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE, + MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET, + MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI, + MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT, + + MLX4_IB_QPT_PROXY_SMI_OWNER = 1 << 16, + MLX4_IB_QPT_PROXY_SMI = 1 << 17, + MLX4_IB_QPT_PROXY_GSI = 1 << 18, + MLX4_IB_QPT_TUN_SMI_OWNER = 1 << 19, + MLX4_IB_QPT_TUN_SMI = 1 << 20, + MLX4_IB_QPT_TUN_GSI = 1 << 21, +}; + +#define MLX4_IB_QPT_ANY_SRIOV (MLX4_IB_QPT_PROXY_SMI_OWNER | \ + MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \ + MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI) + +enum mlx4_ib_mad_ifc_flags { + MLX4_MAD_IFC_IGNORE_MKEY = 1, + MLX4_MAD_IFC_IGNORE_BKEY = 2, + MLX4_MAD_IFC_IGNORE_KEYS = (MLX4_MAD_IFC_IGNORE_MKEY | + MLX4_MAD_IFC_IGNORE_BKEY), + MLX4_MAD_IFC_NET_VIEW = 4, +}; + +enum { + MLX4_NUM_TUNNEL_BUFS = 256, +}; + +struct mlx4_ib_tunnel_header { + struct mlx4_av av; + __be32 remote_qpn; + __be32 qkey; + __be16 vlan; + u8 mac[6]; + __be16 pkey_index; + u8 reserved[6]; +}; + +struct mlx4_ib_buf { + void *addr; + dma_addr_t map; +}; + +struct mlx4_rcv_tunnel_hdr { + __be32 flags_src_qp; /* flags[6:5] is defined for VLANs: + * 0x0 - no vlan was in the packet + * 0x01 - C-VLAN was in the packet */ + u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */ + u8 reserved; + __be16 pkey_index; + __be16 sl_vid; + __be16 slid_mac_47_32; + __be32 mac_31_0; +}; + +struct mlx4_ib_proxy_sqp_hdr { + struct ib_grh grh; + struct mlx4_rcv_tunnel_hdr tun; +} __packed; + struct mlx4_ib_qp { struct ib_qp ibqp; struct mlx4_qp mqp; @@ -159,6 +241,7 @@ struct mlx4_ib_qp { int sq_spare_wqes; struct mlx4_ib_wq sq; + enum mlx4_ib_qp_type mlx4_ib_qp_type; struct ib_umem *umem; struct mlx4_mtt mtt; int buf_size; @@ -174,6 +257,8 @@ struct mlx4_ib_qp { int mlx_type; struct list_head gid_list; struct list_head steering_rules; + struct mlx4_ib_buf *sqp_proxy_rcv; + }; struct mlx4_ib_srq { @@ -196,6 +281,138 @@ struct mlx4_ib_ah { union mlx4_ext_av av; }; +/****************************************/ +/* alias guid support */ +/****************************************/ +#define NUM_PORT_ALIAS_GUID 2 +#define NUM_ALIAS_GUID_IN_REC 8 +#define NUM_ALIAS_GUID_REC_IN_PORT 16 +#define GUID_REC_SIZE 8 +#define NUM_ALIAS_GUID_PER_PORT 128 +#define MLX4_NOT_SET_GUID (0x00LL) +#define MLX4_GUID_FOR_DELETE_VAL (~(0x00LL)) + +enum mlx4_guid_alias_rec_status { + MLX4_GUID_INFO_STATUS_IDLE, + MLX4_GUID_INFO_STATUS_SET, + MLX4_GUID_INFO_STATUS_PENDING, +}; + +enum mlx4_guid_alias_rec_ownership { + MLX4_GUID_DRIVER_ASSIGN, + MLX4_GUID_SYSADMIN_ASSIGN, + MLX4_GUID_NONE_ASSIGN, /*init state of each record*/ +}; + +enum mlx4_guid_alias_rec_method { + MLX4_GUID_INFO_RECORD_SET = IB_MGMT_METHOD_SET, + MLX4_GUID_INFO_RECORD_DELETE = IB_SA_METHOD_DELETE, +}; + +struct mlx4_sriov_alias_guid_info_rec_det { + u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC]; + ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/ + enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/ + u8 method; /*set or delete*/ + enum mlx4_guid_alias_rec_ownership ownership; /*indicates who assign that alias_guid record*/ +}; + +struct mlx4_sriov_alias_guid_port_rec_det { + struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT]; + struct workqueue_struct *wq; + struct delayed_work alias_guid_work; + u8 port; + struct mlx4_sriov_alias_guid *parent; + struct list_head cb_list; +}; + +struct mlx4_sriov_alias_guid { + struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS]; + spinlock_t ag_work_lock; + struct ib_sa_client *sa_client; +}; + +struct mlx4_ib_demux_work { + struct work_struct work; + struct mlx4_ib_dev *dev; + int slave; + int do_init; + u8 port; + +}; + +struct mlx4_ib_tun_tx_buf { + struct mlx4_ib_buf buf; + struct ib_ah *ah; +}; + +struct mlx4_ib_demux_pv_qp { + struct ib_qp *qp; + enum ib_qp_type proxy_qpt; + struct mlx4_ib_buf *ring; + struct mlx4_ib_tun_tx_buf *tx_ring; + spinlock_t tx_lock; + unsigned tx_ix_head; + unsigned tx_ix_tail; +}; + +enum mlx4_ib_demux_pv_state { + DEMUX_PV_STATE_DOWN, + DEMUX_PV_STATE_STARTING, + DEMUX_PV_STATE_ACTIVE, + DEMUX_PV_STATE_DOWNING, +}; + +struct mlx4_ib_demux_pv_ctx { + int port; + int slave; + enum mlx4_ib_demux_pv_state state; + int has_smi; + struct ib_device *ib_dev; + struct ib_cq *cq; + struct ib_pd *pd; + struct ib_mr *mr; + struct work_struct work; + struct workqueue_struct *wq; + struct mlx4_ib_demux_pv_qp qp[2]; +}; + +struct mlx4_ib_demux_ctx { + struct ib_device *ib_dev; + int port; + struct workqueue_struct *wq; + struct workqueue_struct *ud_wq; + spinlock_t ud_lock; + __be64 subnet_prefix; + __be64 guid_cache[128]; + struct mlx4_ib_dev *dev; + /* the following lock protects both mcg_table and mcg_mgid0_list */ + struct mutex mcg_table_lock; + struct rb_root mcg_table; + struct list_head mcg_mgid0_list; + struct workqueue_struct *mcg_wq; + struct mlx4_ib_demux_pv_ctx **tun; + atomic_t tid; + int flushing; /* flushing the work queue */ +}; + +struct mlx4_ib_sriov { + struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS]; + struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS]; + /* when using this spinlock you should use "irq" because + * it may be called from interrupt context.*/ + spinlock_t going_down_lock; + int is_going_down; + + struct mlx4_sriov_alias_guid alias_guid; + + /* CM paravirtualization fields */ + struct list_head cm_list; + spinlock_t id_map_lock; + struct rb_root sl_id_map; + struct idr pv_id_table; +}; + struct mlx4_ib_iboe { spinlock_t lock; struct net_device *netdevs[MLX4_MAX_PORTS]; @@ -203,6 +420,42 @@ struct mlx4_ib_iboe { union ib_gid gid_table[MLX4_MAX_PORTS][128]; }; +struct pkey_mgt { + u8 virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS]; + u16 phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS]; + struct list_head pkey_port_list[MLX4_MFUNC_MAX]; + struct kobject *device_parent[MLX4_MFUNC_MAX]; +}; + +struct mlx4_ib_iov_sysfs_attr { + void *ctx; + struct kobject *kobj; + unsigned long data; + u32 entry_num; + char name[15]; + struct device_attribute dentry; + struct device *dev; +}; + +struct mlx4_ib_iov_sysfs_attr_ar { + struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1]; +}; + +struct mlx4_ib_iov_port { + char name[100]; + u8 num; + struct mlx4_ib_dev *dev; + struct list_head list; + struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar; + struct ib_port_attr attr; + struct kobject *cur_port; + struct kobject *admin_alias_parent; + struct kobject *gids_parent; + struct kobject *pkeys_parent; + struct kobject *mcgs_parent; + struct mlx4_ib_iov_sysfs_attr mcg_dentry; +}; + struct mlx4_ib_dev { struct ib_device ib_dev; struct mlx4_dev *dev; @@ -216,6 +469,7 @@ struct mlx4_ib_dev { struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2]; struct ib_ah *sm_ah[MLX4_MAX_PORTS]; spinlock_t sm_lock; + struct mlx4_ib_sriov sriov; struct mutex cap_mask_mutex; bool ib_active; @@ -223,6 +477,11 @@ struct mlx4_ib_dev { int counters[MLX4_MAX_PORTS]; int *eq_table; int eq_added; + struct kobject *iov_parent; + struct kobject *ports_parent; + struct kobject *dev_ports_parent[MLX4_MFUNC_MAX]; + struct mlx4_ib_iov_port iov_ports[MLX4_MAX_PORTS]; + struct pkey_mgt pkeys; }; struct ib_event_work { @@ -231,6 +490,13 @@ struct ib_event_work { struct mlx4_eqe ib_eqe; }; +struct mlx4_ib_qp_tunnel_init_attr { + struct ib_qp_init_attr init_attr; + int slave; + enum ib_qp_type proxy_qp_type; + u8 port; +}; + static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev) { return container_of(ibdev, struct mlx4_ib_dev, ib_dev); @@ -300,6 +566,9 @@ static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah) return container_of(ibah, struct mlx4_ib_ah, ibah); } +int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev); +void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev); + int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt, struct mlx4_db *db); void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db); @@ -356,7 +625,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, struct ib_recv_wr **bad_wr); -int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey, +int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags, int port, struct ib_wc *in_wc, struct ib_grh *in_grh, void *in_mad, void *response_mad); int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, @@ -371,6 +640,13 @@ int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages, u64 iova); int mlx4_ib_unmap_fmr(struct list_head *fmr_list); int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr); +int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port, + struct ib_port_attr *props, int netw_view); +int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, + u16 *pkey, int netw_view); + +int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, + union ib_gid *gid, int netw_view); int mlx4_ib_resolve_grh(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah_attr, u8 *mac, int *is_mcast, u8 port); @@ -385,10 +661,69 @@ static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah) return !!(ah->av.ib.g_slid & 0x80); } +int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx); +void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq); +void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave); +int mlx4_ib_mcg_init(void); +void mlx4_ib_mcg_destroy(void); + +int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid); + +int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave, + struct ib_sa_mad *sa_mad); +int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave, + struct ib_sa_mad *mad); + int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, union ib_gid *gid); void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num, enum ib_event_type type); +void mlx4_ib_tunnels_update_work(struct work_struct *work); + +int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port, + enum ib_qp_type qpt, struct ib_wc *wc, + struct ib_grh *grh, struct ib_mad *mad); +int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port, + enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn, + u32 qkey, struct ib_ah_attr *attr, struct ib_mad *mad); +__be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx); + +int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave, + struct ib_mad *mad); + +int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id, + struct ib_mad *mad); + +void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev); +void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id); + +/* alias guid support */ +void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port); +int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev); +void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev); +void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port); + +void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev, + int block_num, + u8 port_num, u8 *p_data); + +void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev, + int block_num, u8 port_num, + u8 *p_data); + +int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, + struct attribute *attr); +void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, + struct attribute *attr); +ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index); + +int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ; + +void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device); + +__be64 mlx4_ib_gen_node_guid(void); + + #endif /* MLX4_IB_H */ |