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staging: unisys: visornic: update the struct visornic_devdata comments 

Cleaned up the in-line comments in the structure and added a single block
comment for the structure.

Signed-off-by: Sameer Wadgaonkar <sameer.wadgaonkar@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: David Binder <david.binder@unisys.com>
Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sameer Wadgaonkar 2017-08-22 13:26:58 -04:00 committed by Greg Kroah-Hartman
parent e80ffd4b27
commit 5ea5c64b51
1 changed files with 61 additions and 25 deletions
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86
drivers/staging/unisys/visornic/visornic_main.c
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@ -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;