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sfc: Update and improve kernel-doc for efx_mcdi_state & efx_mcdi_iface 

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Ben Hutchings 2012-10-26 17:53:11 +01:00
parent 369327fa65
commit f76fe120d8
1 changed files with 9 additions and 11 deletions
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20
drivers/net/ethernet/sfc/mcdi.h
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@ -11,14 +11,14 @@
#define EFX_MCDI_H
/**
* enum efx_mcdi_state
* enum efx_mcdi_state - MCDI request handling state
* @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the
* mcdi_lock then they are able to move to MCDI_STATE_RUNNING
* mcdi @iface_lock then they are able to move to %MCDI_STATE_RUNNING
* @MCDI_STATE_RUNNING: There is an MCDI request pending. Only the thread that
* moved into this state is allowed to move out of it.
* @MCDI_STATE_COMPLETED: An MCDI request has completed, but the owning thread
* has not yet consumed the result. For all other threads, equivalent to
* MCDI_STATE_RUNNING.
* %MCDI_STATE_RUNNING.
*/
enum efx_mcdi_state {
MCDI_STATE_QUIESCENT,
@ -32,25 +32,23 @@ enum efx_mcdi_mode {
};
/**
* struct efx_mcdi_iface
* @state: Interface state. Waited for by mcdi_wq.
* @wq: Wait queue for threads waiting for state != STATE_RUNNING
* @iface_lock: Protects @credits, @seqno, @resprc, @resplen
* struct efx_mcdi_iface - MCDI protocol context
* @state: Request handling state. Waited for by @wq.
* @mode: Poll for mcdi completion, or wait for an mcdi_event.
* Serialised by @lock
* @wq: Wait queue for threads waiting for @state != %MCDI_STATE_RUNNING
* @iface_lock: Serialises access to all the following fields
* @seqno: The next sequence number to use for mcdi requests.
* Serialised by @lock
* @credits: Number of spurious MCDI completion events allowed before we
* trigger a fatal error. Protected by @lock
* trigger a fatal error
* @resprc: Response error/success code (Linux numbering)
* @resp_hdr_len: Response header length
* @resp_data_len: Response data (SDU or error) length
*/
struct efx_mcdi_iface {
atomic_t state;
enum efx_mcdi_mode mode;
wait_queue_head_t wq;
spinlock_t iface_lock;
enum efx_mcdi_mode mode;
unsigned int credits;
unsigned int seqno;
int resprc;