#ifndef _UAPI_RDMA_NETLINK_H #define _UAPI_RDMA_NETLINK_H #include enum { RDMA_NL_RDMA_CM = 1, RDMA_NL_IWCM, RDMA_NL_RSVD, RDMA_NL_LS, /* RDMA Local Services */ RDMA_NL_I40IW, RDMA_NL_NUM_CLIENTS }; enum { RDMA_NL_GROUP_CM = 1, RDMA_NL_GROUP_IWPM, RDMA_NL_GROUP_LS, RDMA_NL_NUM_GROUPS }; #define RDMA_NL_GET_CLIENT(type) ((type & (((1 << 6) - 1) << 10)) >> 10) #define RDMA_NL_GET_OP(type) (type & ((1 << 10) - 1)) #define RDMA_NL_GET_TYPE(client, op) ((client << 10) + op) enum { RDMA_NL_RDMA_CM_ID_STATS = 0, RDMA_NL_RDMA_CM_NUM_OPS }; enum { RDMA_NL_RDMA_CM_ATTR_SRC_ADDR = 1, RDMA_NL_RDMA_CM_ATTR_DST_ADDR, RDMA_NL_RDMA_CM_NUM_ATTR, }; /* iwarp port mapper op-codes */ enum { RDMA_NL_IWPM_REG_PID = 0, RDMA_NL_IWPM_ADD_MAPPING, RDMA_NL_IWPM_QUERY_MAPPING, RDMA_NL_IWPM_REMOVE_MAPPING, RDMA_NL_IWPM_REMOTE_INFO, RDMA_NL_IWPM_HANDLE_ERR, RDMA_NL_IWPM_MAPINFO, RDMA_NL_IWPM_MAPINFO_NUM, RDMA_NL_IWPM_NUM_OPS }; struct rdma_cm_id_stats { __u32 qp_num; __u32 bound_dev_if; __u32 port_space; __s32 pid; __u8 cm_state; __u8 node_type; __u8 port_num; __u8 qp_type; }; enum { IWPM_NLA_REG_PID_UNSPEC = 0, IWPM_NLA_REG_PID_SEQ, IWPM_NLA_REG_IF_NAME, IWPM_NLA_REG_IBDEV_NAME, IWPM_NLA_REG_ULIB_NAME, IWPM_NLA_REG_PID_MAX }; enum { IWPM_NLA_RREG_PID_UNSPEC = 0, IWPM_NLA_RREG_PID_SEQ, IWPM_NLA_RREG_IBDEV_NAME, IWPM_NLA_RREG_ULIB_NAME, IWPM_NLA_RREG_ULIB_VER, IWPM_NLA_RREG_PID_ERR, IWPM_NLA_RREG_PID_MAX }; enum { IWPM_NLA_MANAGE_MAPPING_UNSPEC = 0, IWPM_NLA_MANAGE_MAPPING_SEQ, IWPM_NLA_MANAGE_ADDR, IWPM_NLA_MANAGE_MAPPED_LOC_ADDR, IWPM_NLA_RMANAGE_MAPPING_ERR, IWPM_NLA_RMANAGE_MAPPING_MAX }; #define IWPM_NLA_MANAGE_MAPPING_MAX 3 #define IWPM_NLA_QUERY_MAPPING_MAX 4 #define IWPM_NLA_MAPINFO_SEND_MAX 3 enum { IWPM_NLA_QUERY_MAPPING_UNSPEC = 0, IWPM_NLA_QUERY_MAPPING_SEQ, IWPM_NLA_QUERY_LOCAL_ADDR, IWPM_NLA_QUERY_REMOTE_ADDR, IWPM_NLA_RQUERY_MAPPED_LOC_ADDR, IWPM_NLA_RQUERY_MAPPED_REM_ADDR, IWPM_NLA_RQUERY_MAPPING_ERR, IWPM_NLA_RQUERY_MAPPING_MAX }; enum { IWPM_NLA_MAPINFO_REQ_UNSPEC = 0, IWPM_NLA_MAPINFO_ULIB_NAME, IWPM_NLA_MAPINFO_ULIB_VER, IWPM_NLA_MAPINFO_REQ_MAX }; enum { IWPM_NLA_MAPINFO_UNSPEC = 0, IWPM_NLA_MAPINFO_LOCAL_ADDR, IWPM_NLA_MAPINFO_MAPPED_ADDR, IWPM_NLA_MAPINFO_MAX }; enum { IWPM_NLA_MAPINFO_NUM_UNSPEC = 0, IWPM_NLA_MAPINFO_SEQ, IWPM_NLA_MAPINFO_SEND_NUM, IWPM_NLA_MAPINFO_ACK_NUM, IWPM_NLA_MAPINFO_NUM_MAX }; enum { IWPM_NLA_ERR_UNSPEC = 0, IWPM_NLA_ERR_SEQ, IWPM_NLA_ERR_CODE, IWPM_NLA_ERR_MAX }; /* * Local service operations: * RESOLVE - The client requests the local service to resolve a path. * SET_TIMEOUT - The local service requests the client to set the timeout. * IP_RESOLVE - The client requests the local service to resolve an IP to GID. */ enum { RDMA_NL_LS_OP_RESOLVE = 0, RDMA_NL_LS_OP_SET_TIMEOUT, RDMA_NL_LS_OP_IP_RESOLVE, RDMA_NL_LS_NUM_OPS }; /* Local service netlink message flags */ #define RDMA_NL_LS_F_ERR 0x0100 /* Failed response */ /* * Local service resolve operation family header. * The layout for the resolve operation: * nlmsg header * family header * attributes */ /* * Local service path use: * Specify how the path(s) will be used. * ALL - For connected CM operation (6 pathrecords) * UNIDIRECTIONAL - For unidirectional UD (1 pathrecord) * GMP - For miscellaneous GMP like operation (at least 1 reversible * pathrecord) */ enum { LS_RESOLVE_PATH_USE_ALL = 0, LS_RESOLVE_PATH_USE_UNIDIRECTIONAL, LS_RESOLVE_PATH_USE_GMP, LS_RESOLVE_PATH_USE_MAX }; #define LS_DEVICE_NAME_MAX 64 struct rdma_ls_resolve_header { __u8 device_name[LS_DEVICE_NAME_MAX]; __u8 port_num; __u8 path_use; }; struct rdma_ls_ip_resolve_header { __u32 ifindex; }; /* Local service attribute type */ #define RDMA_NLA_F_MANDATORY (1 << 13) #define RDMA_NLA_TYPE_MASK (~(NLA_F_NESTED | NLA_F_NET_BYTEORDER | \ RDMA_NLA_F_MANDATORY)) /* * Local service attributes: * Attr Name Size Byte order * ----------------------------------------------------- * PATH_RECORD struct ib_path_rec_data * TIMEOUT u32 cpu * SERVICE_ID u64 cpu * DGID u8[16] BE * SGID u8[16] BE * TCLASS u8 * PKEY u16 cpu * QOS_CLASS u16 cpu * IPV4 u32 BE * IPV6 u8[16] BE */ enum { LS_NLA_TYPE_UNSPEC = 0, LS_NLA_TYPE_PATH_RECORD, LS_NLA_TYPE_TIMEOUT, LS_NLA_TYPE_SERVICE_ID, LS_NLA_TYPE_DGID, LS_NLA_TYPE_SGID, LS_NLA_TYPE_TCLASS, LS_NLA_TYPE_PKEY, LS_NLA_TYPE_QOS_CLASS, LS_NLA_TYPE_IPV4, LS_NLA_TYPE_IPV6, LS_NLA_TYPE_MAX }; /* Local service DGID/SGID attribute: big endian */ struct rdma_nla_ls_gid { __u8 gid[16]; }; #endif /* _UAPI_RDMA_NETLINK_H */ -07-17 11:40:05 -0300 committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-07-19 13:25:32 -0300 commit11065f8531ed33d5e847a36ad64231ee599d4996 (patch) treeb02f216395f726c0018ed0f8ffda3b5f746f2e16 /drivers/staging/media/cec/cec-adap.c parent045344c3c1478f8d03a1a589d645fe10c3a23f77 (diff)
[media] cec: limit the size of the transmit queue
The size of the transmit queue was unlimited, which meant that in non-blocking mode you could flood the CEC adapter with messages to be transmitted. Limit this to 18 messages. Also print the number of pending transmits and the timeout value in the status debugfs file. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/staging/media/cec/cec-adap.c')
-rw-r--r--drivers/staging/media/cec/cec-adap.c33
1 files changed, 23 insertions, 10 deletions
diff --git a/drivers/staging/media/cec/cec-adap.c b/drivers/staging/media/cec/cec-adap.c