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Message-Id: <257414212bc41035acef09857aab27a28ade2b90.1532687535.git.ioana.ciornei@nxp.com>
Date: Fri, 27 Jul 2018 15:24:46 +0300
From: Ioana Ciornei <ioana.ciornei@....com>
To: gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org, ruxandra.radulescu@....com,
devel@...verdev.osuosl.org, Ioana Ciornei <ioana.ciornei@....com>
Subject: [PATCH 1/2] staging: fsl-dpaa2/eth: document nested structs as per kernel-doc
Document nested structs per kernel-doc requirements by moving
all comments before the actual struct.
Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
---
drivers/staging/fsl-dpaa2/ethernet/dpkg.h | 70 ++++++---------
drivers/staging/fsl-dpaa2/ethernet/dpni.h | 145 ++++++++++++++++++------------
2 files changed, 115 insertions(+), 100 deletions(-)
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpkg.h b/drivers/staging/fsl-dpaa2/ethernet/dpkg.h
index 02290a0..8057a25 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpkg.h
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpkg.h
@@ -89,45 +89,41 @@ struct dpkg_mask {
/**
* struct dpkg_extract - A structure for defining a single extraction
* @type: Determines how the union below is interpreted:
- * DPKG_EXTRACT_FROM_HDR: selects 'from_hdr';
- * DPKG_EXTRACT_FROM_DATA: selects 'from_data';
- * DPKG_EXTRACT_FROM_PARSE: selects 'from_parse'
+ * DPKG_EXTRACT_FROM_HDR: selects 'from_hdr';
+ * DPKG_EXTRACT_FROM_DATA: selects 'from_data';
+ * DPKG_EXTRACT_FROM_PARSE: selects 'from_parse'
* @extract: Selects extraction method
+ * @extract.from_hdr: Used when 'type = DPKG_EXTRACT_FROM_HDR'
+ * @extract.from_data: Used when 'type = DPKG_EXTRACT_FROM_DATA'
+ * @extract.from_parse: Used when 'type = DPKG_EXTRACT_FROM_PARSE'
+ * @extract.from_hdr.prot: Any of the supported headers
+ * @extract.from_hdr.type: Defines the type of header extraction:
+ * DPKG_FROM_HDR: use size & offset below;
+ * DPKG_FROM_FIELD: use field, size and offset below;
+ * DPKG_FULL_FIELD: use field below
+ * @extract.from_hdr.field: One of the supported fields (NH_FLD_)
+ * @extract.from_hdr.size: Size in bytes
+ * @extract.from_hdr.offset: Byte offset
+ * @extract.from_hdr.hdr_index: Clear for cases not listed below;
+ * Used for protocols that may have more than a single
+ * header, 0 indicates an outer header;
+ * Supported protocols (possible values):
+ * NET_PROT_VLAN (0, HDR_INDEX_LAST);
+ * NET_PROT_MPLS (0, 1, HDR_INDEX_LAST);
+ * NET_PROT_IP(0, HDR_INDEX_LAST);
+ * NET_PROT_IPv4(0, HDR_INDEX_LAST);
+ * NET_PROT_IPv6(0, HDR_INDEX_LAST);
+ * @extract.from_data.size: Size in bytes
+ * @extract.from_data.offset: Byte offset
+ * @extract.from_parse.size: Size in bytes
+ * @extract.from_parse.offset: Byte offset
* @num_of_byte_masks: Defines the number of valid entries in the array below;
* This is also the number of bytes to be used as masks
* @masks: Masks parameters
*/
struct dpkg_extract {
enum dpkg_extract_type type;
- /**
- * union extract - Selects extraction method
- * @from_hdr - Used when 'type = DPKG_EXTRACT_FROM_HDR'
- * @from_data - Used when 'type = DPKG_EXTRACT_FROM_DATA'
- * @from_parse - Used when 'type = DPKG_EXTRACT_FROM_PARSE'
- */
union {
- /**
- * struct from_hdr - Used when 'type = DPKG_EXTRACT_FROM_HDR'
- * @prot: Any of the supported headers
- * @type: Defines the type of header extraction:
- * DPKG_FROM_HDR: use size & offset below;
- * DPKG_FROM_FIELD: use field, size and offset below;
- * DPKG_FULL_FIELD: use field below
- * @field: One of the supported fields (NH_FLD_)
- *
- * @size: Size in bytes
- * @offset: Byte offset
- * @hdr_index: Clear for cases not listed below;
- * Used for protocols that may have more than a single
- * header, 0 indicates an outer header;
- * Supported protocols (possible values):
- * NET_PROT_VLAN (0, HDR_INDEX_LAST);
- * NET_PROT_MPLS (0, 1, HDR_INDEX_LAST);
- * NET_PROT_IP(0, HDR_INDEX_LAST);
- * NET_PROT_IPv4(0, HDR_INDEX_LAST);
- * NET_PROT_IPv6(0, HDR_INDEX_LAST);
- */
-
struct {
enum net_prot prot;
enum dpkg_extract_from_hdr_type type;
@@ -136,22 +132,10 @@ struct dpkg_extract {
u8 offset;
u8 hdr_index;
} from_hdr;
- /**
- * struct from_data - Used when 'type = DPKG_EXTRACT_FROM_DATA'
- * @size: Size in bytes
- * @offset: Byte offset
- */
struct {
u8 size;
u8 offset;
} from_data;
-
- /**
- * struct from_parse - Used when
- * 'type = DPKG_EXTRACT_FROM_PARSE'
- * @size: Size in bytes
- * @offset: Byte offset
- */
struct {
u8 size;
u8 offset;
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpni.h b/drivers/staging/fsl-dpaa2/ethernet/dpni.h
index ce86a81..36d3ec1 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpni.h
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpni.h
@@ -117,15 +117,12 @@ int dpni_close(struct fsl_mc_io *mc_io,
* @num_dpbp: Number of DPBPs
* @pools: Array of buffer pools parameters; The number of valid entries
* must match 'num_dpbp' value
+ * @pools.dpbp_id: DPBP object ID
+ * @pools.buffer_size: Buffer size
+ * @pools.backup_pool: Backup pool
*/
struct dpni_pools_cfg {
u8 num_dpbp;
- /**
- * struct pools - Buffer pools parameters
- * @dpbp_id: DPBP object ID
- * @buffer_size: Buffer size
- * @backup_pool: Backup pool
- */
struct {
int dpbp_id;
u16 buffer_size;
@@ -424,16 +421,48 @@ int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
#define DPNI_STATISTICS_CNT 7
+/**
+ * union dpni_statistics - Union describing the DPNI statistics
+ * @page_0: Page_0 statistics structure
+ * @page_0.ingress_all_frames: Ingress frame count
+ * @page_0.ingress_all_bytes: Ingress byte count
+ * @page_0.ingress_multicast_frames: Ingress multicast frame count
+ * @page_0.ingress_multicast_bytes: Ingress multicast byte count
+ * @page_0.ingress_broadcast_frames: Ingress broadcast frame count
+ * @page_0.ingress_broadcast_bytes: Ingress broadcast byte count
+ * @page_1: Page_1 statistics structure
+ * @page_1.egress_all_frames: Egress frame count
+ * @page_1.egress_all_bytes: Egress byte count
+ * @page_1.egress_multicast_frames: Egress multicast frame count
+ * @page_1.egress_multicast_bytes: Egress multicast byte count
+ * @page_1.egress_broadcast_frames: Egress broadcast frame count
+ * @page_1.egress_broadcast_bytes: Egress broadcast byte count
+ * @page_2: Page_2 statistics structure
+ * @page_2.ingress_filtered_frames: Ingress filtered frame count
+ * @page_2.ingress_discarded_frames: Ingress discarded frame count
+ * @page_2.ingress_nobuffer_discards: Ingress discarded frame count due to
+ * lack of buffers
+ * @page_2.egress_discarded_frames: Egress discarded frame count
+ * @page_2.egress_confirmed_frames: Egress confirmed frame count
+ * @page_3: Page_3 statistics structure with values for the selected TC
+ * @page_3.ceetm_dequeue_bytes: Cumulative count of the number of bytes dequeued
+ * @page_3.ceetm_dequeue_frames: Cumulative count of the number of
+ * frames dequeued
+ * @page_3.ceetm_reject_bytes: Cumulative count of the number of bytes
+ * in all frames whose enqueue was rejected
+ * @page_3.ceetm_reject_frames: Cumulative count of all frame enqueues rejected
+ * @page_4: congestion point drops for seleted TC
+ * @page_4.cgr_reject_frames: number of rejected frames due to congestion point
+ * @page_4.cgr_reject_bytes: number of rejected bytes due to congestion point
+ * @page_5: policer statistics per TC
+ * @page_5.policer_cnt_red: NUmber of red colored frames
+ * @page_5.policer_cnt_yellow: number of yellow colored frames
+ * @page_5.policer_cnt_green: number of green colored frames
+ * @page_5.policer_cnt_re_red: number of recolored red frames
+ * @page_5.policer_cnt_re_yellow: number of recolored yellow frames
+ * @raw: raw statistics structure, used to index counters
+ */
union dpni_statistics {
- /**
- * struct page_0 - Page_0 statistics structure
- * @ingress_all_frames: Ingress frame count
- * @ingress_all_bytes: Ingress byte count
- * @ingress_multicast_frames: Ingress multicast frame count
- * @ingress_multicast_bytes: Ingress multicast byte count
- * @ingress_broadcast_frames: Ingress broadcast frame count
- * @ingress_broadcast_bytes: Ingress broadcast byte count
- */
struct {
u64 ingress_all_frames;
u64 ingress_all_bytes;
@@ -442,15 +471,6 @@ int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
u64 ingress_broadcast_frames;
u64 ingress_broadcast_bytes;
} page_0;
- /**
- * struct page_1 - Page_1 statistics structure
- * @egress_all_frames: Egress frame count
- * @egress_all_bytes: Egress byte count
- * @egress_multicast_frames: Egress multicast frame count
- * @egress_multicast_bytes: Egress multicast byte count
- * @egress_broadcast_frames: Egress broadcast frame count
- * @egress_broadcast_bytes: Egress broadcast byte count
- */
struct {
u64 egress_all_frames;
u64 egress_all_bytes;
@@ -459,15 +479,6 @@ int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
u64 egress_broadcast_frames;
u64 egress_broadcast_bytes;
} page_1;
- /**
- * struct page_2 - Page_2 statistics structure
- * @ingress_filtered_frames: Ingress filtered frame count
- * @ingress_discarded_frames: Ingress discarded frame count
- * @ingress_nobuffer_discards: Ingress discarded frame count
- * due to lack of buffers
- * @egress_discarded_frames: Egress discarded frame count
- * @egress_confirmed_frames: Egress confirmed frame count
- */
struct {
u64 ingress_filtered_frames;
u64 ingress_discarded_frames;
@@ -475,9 +486,6 @@ int dpni_get_tx_data_offset(struct fsl_mc_io *mc_io,
u64 egress_discarded_frames;
u64 egress_confirmed_frames;
} page_2;
- /**
- * struct raw - raw statistics structure
- */
struct {
u64 counter[DPNI_STATISTICS_CNT];
} raw;
@@ -685,29 +693,52 @@ enum dpni_dest {
/**
* struct dpni_queue - Queue structure
- * @user_context: User data, presented to the user along with any frames from
- * this queue. Not relevant for Tx queues.
- */
-struct dpni_queue {
-/**
- * struct destination - Destination structure
- * @id: ID of the destination, only relevant if DEST_TYPE is > 0.
- * Identifies either a DPIO or a DPCON object. Not relevant for
- * Tx queues.
- * @type: May be one of the following:
- * 0 - No destination, queue can be manually queried, but will not
- * push traffic or notifications to a DPIO;
- * 1 - The destination is a DPIO. When traffic becomes available in
- * the queue a FQDAN (FQ data available notification) will be
+ * @destination - Destination structure
+ * @destination.id: ID of the destination, only relevant if DEST_TYPE is > 0.
+ * Identifies either a DPIO or a DPCON object.
+ * Not relevant for Tx queues.
+ * @destination.type: May be one of the following:
+ * 0 - No destination, queue can be manually
+ * queried, but will not push traffic or
+ * notifications to a DPIO;
+ * 1 - The destination is a DPIO. When traffic
+ * becomes available in the queue a FQDAN
+ * (FQ data available notification) will be
* generated to selected DPIO;
- * 2 - The destination is a DPCON. The queue is associated with a
- * DPCON object for the purpose of scheduling between multiple
- * queues. The DPCON may be independently configured to
- * generate notifications. Not relevant for Tx queues.
- * @hold_active: Hold active, maintains a queue scheduled for longer
- * in a DPIO during dequeue to reduce spread of traffic.
- * Only relevant if queues are not affined to a single DPIO.
+ * 2 - The destination is a DPCON. The queue is
+ * associated with a DPCON object for the
+ * purpose of scheduling between multiple
+ * queues. The DPCON may be independently
+ * configured to generate notifications.
+ * Not relevant for Tx queues.
+ * @destination.hold_active: Hold active, maintains a queue scheduled for longer
+ * in a DPIO during dequeue to reduce spread of traffic.
+ * Only relevant if queues are
+ * not affined to a single DPIO.
+ * @user_context: User data, presented to the user along with any frames
+ * from this queue. Not relevant for Tx queues.
+ * @flc: FD FLow Context structure
+ * @flc.value: Default FLC value for traffic dequeued from
+ * this queue. Please check description of FD
+ * structure for more information.
+ * Note that FLC values set using dpni_add_fs_entry,
+ * if any, take precedence over values per queue.
+ * @flc.stash_control: Boolean, indicates whether the 6 lowest
+ * - significant bits are used for stash control.
+ * significant bits are used for stash control. If set, the 6
+ * least significant bits in value are interpreted as follows:
+ * - bits 0-1: indicates the number of 64 byte units of context
+ * that are stashed. FLC value is interpreted as a memory address
+ * in this case, excluding the 6 LS bits.
+ * - bits 2-3: indicates the number of 64 byte units of frame
+ * annotation to be stashed. Annotation is placed at FD[ADDR].
+ * - bits 4-5: indicates the number of 64 byte units of frame
+ * data to be stashed. Frame data is placed at FD[ADDR] +
+ * FD[OFFSET].
+ * For more details check the Frame Descriptor section in the
+ * hardware documentation.
*/
+struct dpni_queue {
struct {
u16 id;
enum dpni_dest type;
--
1.9.1
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