diff options
Diffstat (limited to 'drivers/staging/unisys/visornic/visornic_main.c')
| -rw-r--r-- | drivers/staging/unisys/visornic/visornic_main.c | 86 |
1 files changed, 61 insertions, 25 deletions
diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c index feb78d5f30a9..feb05f933983 100644 --- a/drivers/staging/unisys/visornic/visornic_main.c +++ b/drivers/staging/unisys/visornic/visornic_main.c @@ -68,10 +68,68 @@ struct chanstat { unsigned long extra_rcvbufs_sent; }; +/* struct visornic_devdata + * + * @enabled: 0 disabled 1 enabled to receive. + * @enab_dis_acked: NET_RCV_ENABLE/DISABLE acked by IOPART. + * @struct *dev: + * @struct *netdev: + * @struct net_stats: + * @interrupt_rcvd: + * @rsp_queue: + * @struct **rcvbuf: + * @incarnation_id: incarnation_id lets IOPART know about + * re-birth. + * @old_flags: flags as they were prior to + * set_multicast_list. + * @usage: count of users. + * @num_rcv_bufs: number of rcv buffers the vnic will post. + * @num_rcv_bufs_could_not_alloc: + * @num_rcvbuf_in_iovm: + * @alloc_failed_in_if_needed_cnt: + * @alloc_failed_in_repost_rtn_cnt: + * @max_outstanding_net_xmits: absolute max number of outstanding xmits + * - should never hit this. + * @upper_threshold_net_xmits: high water mark for calling + * netif_stop_queue(). + * @lower_threshold_net_xmits: high water mark for calling + * netif_wake_queue(). + * @struct xmitbufhead: xmitbufhead - head of the xmit buffer list + * sent to the IOPART end. + * @server_down_complete_func: + * @struct timeout_reset: + * @struct *cmdrsp_rcv: cmdrsp_rcv is used for posting/unposting rcv + * buffers. + * @struct *xmit_cmdrsp: xmit_cmdrsp - issues NET_XMIT - only one + * active xmit at a time. + * @server_down: IOPART is down. + * @server_change_state: Processing SERVER_CHANGESTATE msg. + * @going_away: device is being torn down. + * @struct *eth_debugfs_dir: + * @interrupts_rcvd: + * @interrupts_notme: + * @interrupts_disabled: + * @busy_cnt: + * @priv_lock: spinlock to access devdata structures. + * @flow_control_upper_hits: + * @flow_control_lower_hits: + * @n_rcv0: # rcvs of 0 buffers. + * @n_rcv1: # rcvs of 1 buffers. + * @n_rcv2: # rcvs of 2 buffers. + * @n_rcvx: # rcvs of >2 buffers. + * @found_repost_rcvbuf_cnt: # repost_rcvbuf_cnt. + * @repost_found_skb_cnt: # of found the skb. + * @n_repost_deficit: # of lost rcv buffers. + * @bad_rcv_buf: # of unknown rcv skb not freed. + * @n_rcv_packets_not_accepted: # bogs rcv packets. + * @queuefullmsg_logged: + * @struct chstat: + * @struct irq_poll_timer: + * @struct napi: + * @struct cmdrsp: + */ struct visornic_devdata { - /* 0 disabled 1 enabled to receive */ unsigned short enabled; - /* NET_RCV_ENABLE/DISABLE acked by IOPART */ unsigned short enab_dis_acked; struct visor_device *dev; @@ -80,47 +138,34 @@ struct visornic_devdata { atomic_t interrupt_rcvd; wait_queue_head_t rsp_queue; struct sk_buff **rcvbuf; - /* incarnation_id lets IOPART know about re-birth */ u64 incarnation_id; - /* flags as they were prior to set_multicast_list */ unsigned short old_flags; - /* count of users */ atomic_t usage; - /* number of rcv buffers the vnic will post */ int num_rcv_bufs; int num_rcv_bufs_could_not_alloc; atomic_t num_rcvbuf_in_iovm; unsigned long alloc_failed_in_if_needed_cnt; unsigned long alloc_failed_in_repost_rtn_cnt; - /* absolute max number of outstanding xmits - should never hit this */ unsigned long max_outstanding_net_xmits; - /* high water mark for calling netif_stop_queue() */ unsigned long upper_threshold_net_xmits; - /* high water mark for calling netif_wake_queue() */ unsigned long lower_threshold_net_xmits; - /* xmitbufhead - head of the xmit buffer list sent to the IOPART end */ struct sk_buff_head xmitbufhead; visorbus_state_complete_func server_down_complete_func; struct work_struct timeout_reset; - /* cmdrsp_rcv is used for posting/unposting rcv buffers */ struct uiscmdrsp *cmdrsp_rcv; - /* xmit_cmdrsp - issues NET_XMIT - only one active xmit at a time */ struct uiscmdrsp *xmit_cmdrsp; - /* IOPART is down */ bool server_down; - /* Processing SERVER_CHANGESTATE msg */ bool server_change_state; - /* device is being torn down */ bool going_away; struct dentry *eth_debugfs_dir; u64 interrupts_rcvd; u64 interrupts_notme; u64 interrupts_disabled; u64 busy_cnt; - /* spinlock to access devdata structures */ + /* spinlock to access devdata structures. */ spinlock_t priv_lock; /* flow control counter */ @@ -128,23 +173,14 @@ struct visornic_devdata { u64 flow_control_lower_hits; /* debug counters */ - /* # rcvs of 0 buffers */ unsigned long n_rcv0; - /* # rcvs of 1 buffers */ unsigned long n_rcv1; - /* # rcvs of 2 buffers */ unsigned long n_rcv2; - /* # rcvs of >2 buffers */ unsigned long n_rcvx; - /* # repost_rcvbuf_cnt */ unsigned long found_repost_rcvbuf_cnt; - /* # of found the skb */ unsigned long repost_found_skb_cnt; - /* # of lost rcv buffers */ unsigned long n_repost_deficit; - /* # of unknown rcv skb not freed */ unsigned long bad_rcv_buf; - /* # bogs rcv packets */ unsigned long n_rcv_packets_not_accepted; int queuefullmsg_logged; |