603c594e45
Added a separate loop to dequeue the rx pkts and relinquish REO and rx-Refill ring faster. Additionl rx processing is moved to a different per vdev loop. CRs-Fixed: 1098453 Change-Id: I43b1fa302cf7e7c77f6114ea491306c0b724e365
166 baris
5.1 KiB
C
166 baris
5.1 KiB
C
/*
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* Copyright (c) 2017 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _DP_RX_H
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#define _DP_RX_H
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#include "hal_rx.h"
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#include "dp_tx.h"
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#define DP_PEER_METADATA_PEER_ID_MASK 0x0000ffff
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#define DP_PEER_METADATA_PEER_ID_SHIFT 0
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#define DP_PEER_METADATA_VDEV_ID_MASK 0x00070000
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#define DP_PEER_METADATA_VDEV_ID_SHIFT 16
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#define DP_PEER_METADATA_PEER_ID_GET(_peer_metadata) \
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(((_peer_metadata) & DP_PEER_METADATA_PEER_ID_MASK) \
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>> DP_PEER_METADATA_PEER_ID_SHIFT)
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#define DP_PEER_METADATA_ID_GET(_peer_metadata) \
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(((_peer_metadata) & DP_PEER_METADATA_VDEV_ID_MASK) \
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>> DP_PEER_METADATA_VDEV_ID_SHIFT)
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/**
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* struct dp_rx_desc
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*
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* @nbuf : VA of the "skb" posted
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* @rx_buf_start : VA of the original Rx buffer, before
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* movement of any skb->data pointer
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* @cookie : index into the sw array which holds
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* the sw Rx descriptors
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* Cookie space is 21 bits:
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* lower 18 bits -- index
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* upper 3 bits -- pool_id
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* @pool_id : pool Id for which this allocated.
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* Can only be used if there is no flow
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* steering
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*/
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struct dp_rx_desc {
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qdf_nbuf_t nbuf;
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uint8_t *rx_buf_start;
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uint16_t cookie;
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uint8_t pool_id;
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};
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#define RX_DESC_COOKIE_INDEX_SHIFT 0
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#define RX_DESC_COOKIE_INDEX_MASK 0x3ffff /* 18 bits */
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#define RX_DESC_COOKIE_POOL_ID_SHIFT 18
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#define RX_DESC_COOKIE_POOL_ID_MASK 0x1c0000
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#define DP_RX_DESC_COOKIE_POOL_ID_GET(_cookie) \
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(((_cookie) & RX_DESC_COOKIE_POOL_ID_MASK) >> \
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RX_DESC_COOKIE_POOL_ID_SHIFT)
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#define DP_RX_DESC_COOKIE_INDEX_GET(_cookie) \
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(((_cookie) & RX_DESC_COOKIE_INDEX_MASK) >> \
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RX_DESC_COOKIE_INDEX_SHIFT)
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/**
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* struct dp_rx_desc_list_elem_t
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*
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* @next : Next pointer to form free list
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* @rx_desc : DP Rx descriptor
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*/
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union dp_rx_desc_list_elem_t {
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union dp_rx_desc_list_elem_t *next;
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struct dp_rx_desc rx_desc;
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};
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/**
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* dp_rx_cookie_2_va() - Converts cookie to a virtual address of
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* the Rx descriptor.
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* @soc: core txrx main context
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* @cookie: cookie used to lookup virtual address
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*
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* Return: void *: Virtual Address of the Rx descriptor
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*/
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static inline
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void *dp_rx_cookie_2_va(struct dp_soc *soc, uint32_t cookie)
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{
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uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie);
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uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie);
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/* TODO */
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/* Add sanity for pool_id & index */
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return &(soc->rx_desc[pool_id].array[index].rx_desc);
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}
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void dp_rx_add_desc_list_to_free_list(struct dp_soc *soc,
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union dp_rx_desc_list_elem_t **local_desc_list,
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union dp_rx_desc_list_elem_t **tail,
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uint16_t pool_id);
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uint16_t dp_rx_get_free_desc_list(struct dp_soc *soc, uint32_t pool_id,
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uint16_t num_descs,
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union dp_rx_desc_list_elem_t **desc_list,
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union dp_rx_desc_list_elem_t **tail);
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QDF_STATUS dp_rx_desc_pool_alloc(struct dp_soc *soc, uint32_t pool_id);
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void dp_rx_desc_pool_free(struct dp_soc *soc, uint32_t pool_id);
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QDF_STATUS dp_rx_pdev_attach(struct dp_pdev *pdev);
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void dp_rx_pdev_detach(struct dp_pdev *pdev);
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QDF_STATUS dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
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uint32_t num_req_buffers,
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union dp_rx_desc_list_elem_t **desc_list,
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union dp_rx_desc_list_elem_t **tail,
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uint8_t owner);
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uint32_t dp_rx_process(struct dp_soc *soc, void *hal_ring, uint32_t quota);
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uint32_t dp_rx_err_process(struct dp_soc *soc, void *hal_ring, uint32_t quota);
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uint32_t
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dp_rx_wbm_err_process(struct dp_soc *soc, void *hal_ring, uint32_t quota);
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/**
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* dp_rx_add_to_free_desc_list() - Adds to a local free descriptor list
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*
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* @head: pointer to the head of local free list
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* @tail: pointer to the tail of local free list
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* @new: new descriptor that is added to the free list
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*
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* Return: void:
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*/
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static inline
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void dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head,
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union dp_rx_desc_list_elem_t **tail,
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struct dp_rx_desc *new)
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{
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qdf_assert(head && new);
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new->nbuf = NULL;
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((union dp_rx_desc_list_elem_t *)new)->next = *head;
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*head = (union dp_rx_desc_list_elem_t *)new;
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if (*tail == NULL)
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*tail = *head;
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}
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#define DP_RX_LIST_APPEND(head, tail, elem) \
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do { \
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if (!(head)) { \
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(head) = (elem); \
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} else { \
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qdf_nbuf_set_next((tail), (elem)); \
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} \
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(tail) = (elem); \
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} while (0)
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#endif /* _DP_RX_H */
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