blob: 671e4889015723e97475189859a76cd9735be895 [file] [log] [blame]
/*
* Copyright (c) 2016-2020 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _DP_RX_H
#define _DP_RX_H
#include "hal_rx.h"
#include "dp_tx.h"
#include "dp_peer.h"
#include "dp_internal.h"
#ifdef RXDMA_OPTIMIZATION
#ifndef RX_DATA_BUFFER_ALIGNMENT
#define RX_DATA_BUFFER_ALIGNMENT 128
#endif
#ifndef RX_MONITOR_BUFFER_ALIGNMENT
#define RX_MONITOR_BUFFER_ALIGNMENT 128
#endif
#else /* RXDMA_OPTIMIZATION */
#define RX_DATA_BUFFER_ALIGNMENT 4
#define RX_MONITOR_BUFFER_ALIGNMENT 4
#endif /* RXDMA_OPTIMIZATION */
#ifdef QCA_HOST2FW_RXBUF_RING
#define DP_WBM2SW_RBM HAL_RX_BUF_RBM_SW1_BM
/* RBM value used for re-injecting defragmented packets into REO */
#define DP_DEFRAG_RBM HAL_RX_BUF_RBM_SW3_BM
#else
#define DP_WBM2SW_RBM HAL_RX_BUF_RBM_SW3_BM
#define DP_DEFRAG_RBM DP_WBM2SW_RBM
#endif /* QCA_HOST2FW_RXBUF_RING */
#define RX_BUFFER_RESERVATION 0
#define DP_PEER_METADATA_PEER_ID_MASK 0x0000ffff
#define DP_PEER_METADATA_PEER_ID_SHIFT 0
#define DP_PEER_METADATA_VDEV_ID_MASK 0x003f0000
#define DP_PEER_METADATA_VDEV_ID_SHIFT 16
#define DP_PEER_METADATA_PEER_ID_GET(_peer_metadata) \
(((_peer_metadata) & DP_PEER_METADATA_PEER_ID_MASK) \
>> DP_PEER_METADATA_PEER_ID_SHIFT)
#define DP_PEER_METADATA_VDEV_ID_GET(_peer_metadata) \
(((_peer_metadata) & DP_PEER_METADATA_VDEV_ID_MASK) \
>> DP_PEER_METADATA_VDEV_ID_SHIFT)
#define DP_RX_DESC_MAGIC 0xdec0de
/**
* struct dp_rx_desc
*
* @nbuf : VA of the "skb" posted
* @rx_buf_start : VA of the original Rx buffer, before
* movement of any skb->data pointer
* @cookie : index into the sw array which holds
* the sw Rx descriptors
* Cookie space is 21 bits:
* lower 18 bits -- index
* upper 3 bits -- pool_id
* @pool_id : pool Id for which this allocated.
* Can only be used if there is no flow
* steering
* @in_use rx_desc is in use
* @unmapped used to mark rx_desc an unmapped if the corresponding
* nbuf is already unmapped
*/
struct dp_rx_desc {
qdf_nbuf_t nbuf;
uint8_t *rx_buf_start;
uint32_t cookie;
uint8_t pool_id;
#ifdef RX_DESC_DEBUG_CHECK
uint32_t magic;
#endif
uint8_t in_use:1,
unmapped:1;
};
/* RX Descriptor Multi Page memory alloc related */
#define DP_RX_DESC_OFFSET_NUM_BITS 8
#define DP_RX_DESC_PAGE_ID_NUM_BITS 8
#define DP_RX_DESC_POOL_ID_NUM_BITS 4
#define DP_RX_DESC_PAGE_ID_SHIFT DP_RX_DESC_OFFSET_NUM_BITS
#define DP_RX_DESC_POOL_ID_SHIFT \
(DP_RX_DESC_OFFSET_NUM_BITS + DP_RX_DESC_PAGE_ID_NUM_BITS)
#define RX_DESC_MULTI_PAGE_COOKIE_POOL_ID_MASK \
(((1 << DP_RX_DESC_POOL_ID_NUM_BITS) - 1) << DP_RX_DESC_POOL_ID_SHIFT)
#define RX_DESC_MULTI_PAGE_COOKIE_PAGE_ID_MASK \
(((1 << DP_RX_DESC_PAGE_ID_NUM_BITS) - 1) << \
DP_RX_DESC_PAGE_ID_SHIFT)
#define RX_DESC_MULTI_PAGE_COOKIE_OFFSET_MASK \
((1 << DP_RX_DESC_OFFSET_NUM_BITS) - 1)
#define DP_RX_DESC_MULTI_PAGE_COOKIE_GET_POOL_ID(_cookie) \
(((_cookie) & RX_DESC_MULTI_PAGE_COOKIE_POOL_ID_MASK) >> \
DP_RX_DESC_POOL_ID_SHIFT)
#define DP_RX_DESC_MULTI_PAGE_COOKIE_GET_PAGE_ID(_cookie) \
(((_cookie) & RX_DESC_MULTI_PAGE_COOKIE_PAGE_ID_MASK) >> \
DP_RX_DESC_PAGE_ID_SHIFT)
#define DP_RX_DESC_MULTI_PAGE_COOKIE_GET_OFFSET(_cookie) \
((_cookie) & RX_DESC_MULTI_PAGE_COOKIE_OFFSET_MASK)
#define RX_DESC_COOKIE_INDEX_SHIFT 0
#define RX_DESC_COOKIE_INDEX_MASK 0x3ffff /* 18 bits */
#define RX_DESC_COOKIE_POOL_ID_SHIFT 18
#define RX_DESC_COOKIE_POOL_ID_MASK 0x1c0000
#define DP_RX_DESC_COOKIE_MAX \
(RX_DESC_COOKIE_INDEX_MASK | RX_DESC_COOKIE_POOL_ID_MASK)
#define DP_RX_DESC_COOKIE_POOL_ID_GET(_cookie) \
(((_cookie) & RX_DESC_COOKIE_POOL_ID_MASK) >> \
RX_DESC_COOKIE_POOL_ID_SHIFT)
#define DP_RX_DESC_COOKIE_INDEX_GET(_cookie) \
(((_cookie) & RX_DESC_COOKIE_INDEX_MASK) >> \
RX_DESC_COOKIE_INDEX_SHIFT)
/* DOC: Offset to obtain LLC hdr
*
* In the case of Wifi parse error
* to reach LLC header from beginning
* of VLAN tag we need to skip 8 bytes.
* Vlan_tag(4)+length(2)+length added
* by HW(2) = 8 bytes.
*/
#define DP_SKIP_VLAN 8
/**
* struct dp_rx_cached_buf - rx cached buffer
* @list: linked list node
* @buf: skb buffer
*/
struct dp_rx_cached_buf {
qdf_list_node_t node;
qdf_nbuf_t buf;
};
/*
*dp_rx_xor_block() - xor block of data
*@b: destination data block
*@a: source data block
*@len: length of the data to process
*
*Returns: None
*/
static inline void dp_rx_xor_block(uint8_t *b, const uint8_t *a, qdf_size_t len)
{
qdf_size_t i;
for (i = 0; i < len; i++)
b[i] ^= a[i];
}
/*
*dp_rx_rotl() - rotate the bits left
*@val: unsigned integer input value
*@bits: number of bits
*
*Returns: Integer with left rotated by number of 'bits'
*/
static inline uint32_t dp_rx_rotl(uint32_t val, int bits)
{
return (val << bits) | (val >> (32 - bits));
}
/*
*dp_rx_rotr() - rotate the bits right
*@val: unsigned integer input value
*@bits: number of bits
*
*Returns: Integer with right rotated by number of 'bits'
*/
static inline uint32_t dp_rx_rotr(uint32_t val, int bits)
{
return (val >> bits) | (val << (32 - bits));
}
/*
* dp_set_rx_queue() - set queue_mapping in skb
* @nbuf: skb
* @queue_id: rx queue_id
*
* Return: void
*/
#ifdef QCA_OL_RX_MULTIQ_SUPPORT
static inline void dp_set_rx_queue(qdf_nbuf_t nbuf, uint8_t queue_id)
{
qdf_nbuf_record_rx_queue(nbuf, queue_id);
return;
}
#else
static inline void dp_set_rx_queue(qdf_nbuf_t nbuf, uint8_t queue_id)
{
}
#endif
/*
*dp_rx_xswap() - swap the bits left
*@val: unsigned integer input value
*
*Returns: Integer with bits swapped
*/
static inline uint32_t dp_rx_xswap(uint32_t val)
{
return ((val & 0x00ff00ff) << 8) | ((val & 0xff00ff00) >> 8);
}
/*
*dp_rx_get_le32_split() - get little endian 32 bits split
*@b0: byte 0
*@b1: byte 1
*@b2: byte 2
*@b3: byte 3
*
*Returns: Integer with split little endian 32 bits
*/
static inline uint32_t dp_rx_get_le32_split(uint8_t b0, uint8_t b1, uint8_t b2,
uint8_t b3)
{
return b0 | (b1 << 8) | (b2 << 16) | (b3 << 24);
}
/*
*dp_rx_get_le32() - get little endian 32 bits
*@b0: byte 0
*@b1: byte 1
*@b2: byte 2
*@b3: byte 3
*
*Returns: Integer with little endian 32 bits
*/
static inline uint32_t dp_rx_get_le32(const uint8_t *p)
{
return dp_rx_get_le32_split(p[0], p[1], p[2], p[3]);
}
/*
* dp_rx_put_le32() - put little endian 32 bits
* @p: destination char array
* @v: source 32-bit integer
*
* Returns: None
*/
static inline void dp_rx_put_le32(uint8_t *p, uint32_t v)
{
p[0] = (v) & 0xff;
p[1] = (v >> 8) & 0xff;
p[2] = (v >> 16) & 0xff;
p[3] = (v >> 24) & 0xff;
}
/* Extract michal mic block of data */
#define dp_rx_michael_block(l, r) \
do { \
r ^= dp_rx_rotl(l, 17); \
l += r; \
r ^= dp_rx_xswap(l); \
l += r; \
r ^= dp_rx_rotl(l, 3); \
l += r; \
r ^= dp_rx_rotr(l, 2); \
l += r; \
} while (0)
/**
* struct dp_rx_desc_list_elem_t
*
* @next : Next pointer to form free list
* @rx_desc : DP Rx descriptor
*/
union dp_rx_desc_list_elem_t {
union dp_rx_desc_list_elem_t *next;
struct dp_rx_desc rx_desc;
};
#ifdef RX_DESC_MULTI_PAGE_ALLOC
/**
* dp_rx_desc_find() - find dp rx descriptor from page ID and offset
* @page_id: Page ID
* @offset: Offset of the descriptor element
*
* Return: RX descriptor element
*/
union dp_rx_desc_list_elem_t *dp_rx_desc_find(uint16_t page_id, uint16_t offset,
struct rx_desc_pool *rx_pool);
static inline
struct dp_rx_desc *dp_get_rx_desc_from_cookie(struct dp_soc *soc,
struct rx_desc_pool *pool,
uint32_t cookie)
{
uint8_t pool_id = DP_RX_DESC_MULTI_PAGE_COOKIE_GET_POOL_ID(cookie);
uint16_t page_id = DP_RX_DESC_MULTI_PAGE_COOKIE_GET_PAGE_ID(cookie);
uint8_t offset = DP_RX_DESC_MULTI_PAGE_COOKIE_GET_OFFSET(cookie);
struct rx_desc_pool *rx_desc_pool;
union dp_rx_desc_list_elem_t *rx_desc_elem;
if (qdf_unlikely(pool_id >= MAX_RXDESC_POOLS))
return NULL;
rx_desc_pool = &pool[pool_id];
rx_desc_elem = (union dp_rx_desc_list_elem_t *)
(rx_desc_pool->desc_pages.cacheable_pages[page_id] +
rx_desc_pool->elem_size * offset);
return &rx_desc_elem->rx_desc;
}
/**
* dp_rx_cookie_2_va_rxdma_buf() - Converts cookie to a virtual address of
* the Rx descriptor on Rx DMA source ring buffer
* @soc: core txrx main context
* @cookie: cookie used to lookup virtual address
*
* Return: Pointer to the Rx descriptor
*/
static inline
struct dp_rx_desc *dp_rx_cookie_2_va_rxdma_buf(struct dp_soc *soc,
uint32_t cookie)
{
return dp_get_rx_desc_from_cookie(soc, &soc->rx_desc_buf[0], cookie);
}
/**
* dp_rx_cookie_2_va_mon_buf() - Converts cookie to a virtual address of
* the Rx descriptor on monitor ring buffer
* @soc: core txrx main context
* @cookie: cookie used to lookup virtual address
*
* Return: Pointer to the Rx descriptor
*/
static inline
struct dp_rx_desc *dp_rx_cookie_2_va_mon_buf(struct dp_soc *soc,
uint32_t cookie)
{
return dp_get_rx_desc_from_cookie(soc, &soc->rx_desc_mon[0], cookie);
}
/**
* dp_rx_cookie_2_va_mon_status() - Converts cookie to a virtual address of
* the Rx descriptor on monitor status ring buffer
* @soc: core txrx main context
* @cookie: cookie used to lookup virtual address
*
* Return: Pointer to the Rx descriptor
*/
static inline
struct dp_rx_desc *dp_rx_cookie_2_va_mon_status(struct dp_soc *soc,
uint32_t cookie)
{
return dp_get_rx_desc_from_cookie(soc, &soc->rx_desc_status[0], cookie);
}
#else
/**
* dp_rx_cookie_2_va_rxdma_buf() - Converts cookie to a virtual address of
* the Rx descriptor on Rx DMA source ring buffer
* @soc: core txrx main context
* @cookie: cookie used to lookup virtual address
*
* Return: void *: Virtual Address of the Rx descriptor
*/
static inline
void *dp_rx_cookie_2_va_rxdma_buf(struct dp_soc *soc, uint32_t cookie)
{
uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie);
uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie);
struct rx_desc_pool *rx_desc_pool;
if (qdf_unlikely(pool_id >= MAX_RXDESC_POOLS))
return NULL;
rx_desc_pool = &soc->rx_desc_buf[pool_id];
if (qdf_unlikely(index >= rx_desc_pool->pool_size))
return NULL;
return &(soc->rx_desc_buf[pool_id].array[index].rx_desc);
}
/**
* dp_rx_cookie_2_va_mon_buf() - Converts cookie to a virtual address of
* the Rx descriptor on monitor ring buffer
* @soc: core txrx main context
* @cookie: cookie used to lookup virtual address
*
* Return: void *: Virtual Address of the Rx descriptor
*/
static inline
void *dp_rx_cookie_2_va_mon_buf(struct dp_soc *soc, uint32_t cookie)
{
uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie);
uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie);
/* TODO */
/* Add sanity for pool_id & index */
return &(soc->rx_desc_mon[pool_id].array[index].rx_desc);
}
/**
* dp_rx_cookie_2_va_mon_status() - Converts cookie to a virtual address of
* the Rx descriptor on monitor status ring buffer
* @soc: core txrx main context
* @cookie: cookie used to lookup virtual address
*
* Return: void *: Virtual Address of the Rx descriptor
*/
static inline
void *dp_rx_cookie_2_va_mon_status(struct dp_soc *soc, uint32_t cookie)
{
uint8_t pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(cookie);
uint16_t index = DP_RX_DESC_COOKIE_INDEX_GET(cookie);
/* TODO */
/* Add sanity for pool_id & index */
return &(soc->rx_desc_status[pool_id].array[index].rx_desc);
}
#endif /* RX_DESC_MULTI_PAGE_ALLOC */
void dp_rx_add_desc_list_to_free_list(struct dp_soc *soc,
union dp_rx_desc_list_elem_t **local_desc_list,
union dp_rx_desc_list_elem_t **tail,
uint16_t pool_id,
struct rx_desc_pool *rx_desc_pool);
uint16_t dp_rx_get_free_desc_list(struct dp_soc *soc, uint32_t pool_id,
struct rx_desc_pool *rx_desc_pool,
uint16_t num_descs,
union dp_rx_desc_list_elem_t **desc_list,
union dp_rx_desc_list_elem_t **tail);
QDF_STATUS dp_rx_pdev_attach(struct dp_pdev *pdev);
void dp_rx_pdev_detach(struct dp_pdev *pdev);
void dp_print_napi_stats(struct dp_soc *soc);
/**
* dp_rx_vdev_detach() - detach vdev from dp rx
* @vdev: virtual device instance
*
* Return: QDF_STATUS_SUCCESS: success
* QDF_STATUS_E_RESOURCES: Error return
*/
QDF_STATUS dp_rx_vdev_detach(struct dp_vdev *vdev);
uint32_t
dp_rx_process(struct dp_intr *int_ctx, hal_ring_handle_t hal_ring_hdl,
uint8_t reo_ring_num,
uint32_t quota);
/**
* dp_rx_err_process() - Processes error frames routed to REO error ring
* @int_ctx: pointer to DP interrupt context
* @soc: core txrx main context
* @hal_ring: opaque pointer to the HAL Rx Error Ring, which will be serviced
* @quota: No. of units (packets) that can be serviced in one shot.
*
* This function implements error processing and top level demultiplexer
* for all the frames routed to REO error ring.
*
* Return: uint32_t: No. of elements processed
*/
uint32_t dp_rx_err_process(struct dp_intr *int_ctx, struct dp_soc *soc,
hal_ring_handle_t hal_ring_hdl, uint32_t quota);
/**
* dp_rx_wbm_err_process() - Processes error frames routed to WBM release ring
* @int_ctx: pointer to DP interrupt context
* @soc: core txrx main context
* @hal_ring: opaque pointer to the HAL Rx Error Ring, which will be serviced
* @quota: No. of units (packets) that can be serviced in one shot.
*
* This function implements error processing and top level demultiplexer
* for all the frames routed to WBM2HOST sw release ring.
*
* Return: uint32_t: No. of elements processed
*/
uint32_t
dp_rx_wbm_err_process(struct dp_intr *int_ctx, struct dp_soc *soc,
hal_ring_handle_t hal_ring_hdl, uint32_t quota);
/**
* dp_rx_sg_create() - create a frag_list for MSDUs which are spread across
* multiple nbufs.
* @nbuf: pointer to the first msdu of an amsdu.
*
* This function implements the creation of RX frag_list for cases
* where an MSDU is spread across multiple nbufs.
*
* Return: returns the head nbuf which contains complete frag_list.
*/
qdf_nbuf_t dp_rx_sg_create(qdf_nbuf_t nbuf);
/*
* dp_rx_desc_pool_alloc() - create a pool of software rx_descs
* at the time of dp rx initialization
*
* @soc: core txrx main context
* @pool_id: pool_id which is one of 3 mac_ids
* @pool_size: number of Rx descriptor in the pool
* @rx_desc_pool: rx descriptor pool pointer
*
* Return: QDF status
*/
QDF_STATUS dp_rx_desc_pool_alloc(struct dp_soc *soc, uint32_t pool_id,
uint32_t pool_size, struct rx_desc_pool *pool);
/*
* dp_rx_desc_nbuf_and_pool_free() - free the sw rx desc pool called during
* de-initialization of wifi module.
*
* @soc: core txrx main context
* @pool_id: pool_id which is one of 3 mac_ids
* @rx_desc_pool: rx descriptor pool pointer
*
* Return: None
*/
void dp_rx_desc_nbuf_and_pool_free(struct dp_soc *soc, uint32_t pool_id,
struct rx_desc_pool *rx_desc_pool);
/*
* dp_rx_desc_nbuf_free() - free the sw rx desc nbufs called during
* de-initialization of wifi module.
*
* @soc: core txrx main context
* @pool_id: pool_id which is one of 3 mac_ids
* @rx_desc_pool: rx descriptor pool pointer
*
* Return: None
*/
void dp_rx_desc_nbuf_free(struct dp_soc *soc,
struct rx_desc_pool *rx_desc_pool);
/*
* dp_rx_desc_pool_free() - free the sw rx desc array called during
* de-initialization of wifi module.
*
* @soc: core txrx main context
* @rx_desc_pool: rx descriptor pool pointer
*
* Return: None
*/
void dp_rx_desc_pool_free(struct dp_soc *soc,
struct rx_desc_pool *rx_desc_pool);
void dp_rx_deliver_raw(struct dp_vdev *vdev, qdf_nbuf_t nbuf_list,
struct dp_peer *peer);
/**
* dp_rx_add_to_free_desc_list() - Adds to a local free descriptor list
*
* @head: pointer to the head of local free list
* @tail: pointer to the tail of local free list
* @new: new descriptor that is added to the free list
*
* Return: void:
*/
static inline
void dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head,
union dp_rx_desc_list_elem_t **tail,
struct dp_rx_desc *new)
{
qdf_assert(head && new);
new->nbuf = NULL;
new->in_use = 0;
((union dp_rx_desc_list_elem_t *)new)->next = *head;
*head = (union dp_rx_desc_list_elem_t *)new;
/* reset tail if head->next is NULL */
if (!*tail || !(*head)->next)
*tail = *head;
}
uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t nbuf,
uint8_t mac_id);
void dp_rx_process_invalid_peer_wrapper(struct dp_soc *soc,
qdf_nbuf_t mpdu, bool mpdu_done, uint8_t mac_id);
void dp_rx_process_mic_error(struct dp_soc *soc, qdf_nbuf_t nbuf,
uint8_t *rx_tlv_hdr, struct dp_peer *peer);
void dp_2k_jump_handle(struct dp_soc *soc, qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr,
uint16_t peer_id, uint8_t tid);
#define DP_RX_LIST_APPEND(head, tail, elem) \
do { \
if (!(head)) { \
(head) = (elem); \
QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(head) = 1;\
} else { \
qdf_nbuf_set_next((tail), (elem)); \
QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST(head)++; \
} \
(tail) = (elem); \
qdf_nbuf_set_next((tail), NULL); \
} while (0)
/*for qcn9000 emulation the pcie is complete phy and no address restrictions*/
#if !defined(BUILD_X86) || defined(QCA_WIFI_QCN9000)
static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf,
qdf_dma_addr_t *paddr, struct rx_desc_pool *rx_desc_pool)
{
return QDF_STATUS_SUCCESS;
}
#else
#define MAX_RETRY 100
static inline int check_x86_paddr(struct dp_soc *dp_soc, qdf_nbuf_t *rx_netbuf,
qdf_dma_addr_t *paddr, struct rx_desc_pool *rx_desc_pool)
{
uint32_t nbuf_retry = 0;
int32_t ret;
const uint32_t x86_phy_addr = 0x50000000;
/*
* in M2M emulation platforms (x86) the memory below 0x50000000
* is reserved for target use, so any memory allocated in this
* region should not be used by host
*/
do {
if (qdf_likely(*paddr > x86_phy_addr))
return QDF_STATUS_SUCCESS;
else {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO,
"phy addr %pK exceeded 0x50000000 trying again",
paddr);
nbuf_retry++;
if ((*rx_netbuf)) {
qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf,
QDF_DMA_FROM_DEVICE);
/* Not freeing buffer intentionally.
* Observed that same buffer is getting
* re-allocated resulting in longer load time
* WMI init timeout.
* This buffer is anyway not useful so skip it.
**/
}
*rx_netbuf = qdf_nbuf_alloc(dp_soc->osdev,
rx_desc_pool->buf_size,
RX_BUFFER_RESERVATION,
rx_desc_pool->buf_alignment,
FALSE);
if (qdf_unlikely(!(*rx_netbuf)))
return QDF_STATUS_E_FAILURE;
ret = qdf_nbuf_map_single(dp_soc->osdev, *rx_netbuf,
QDF_DMA_FROM_DEVICE);
if (qdf_unlikely(ret == QDF_STATUS_E_FAILURE)) {
qdf_nbuf_free(*rx_netbuf);
*rx_netbuf = NULL;
continue;
}
*paddr = qdf_nbuf_get_frag_paddr(*rx_netbuf, 0);
}
} while (nbuf_retry < MAX_RETRY);
if ((*rx_netbuf)) {
qdf_nbuf_unmap_single(dp_soc->osdev, *rx_netbuf,
QDF_DMA_FROM_DEVICE);
qdf_nbuf_free(*rx_netbuf);
}
return QDF_STATUS_E_FAILURE;
}
#endif
/**
* dp_rx_cookie_2_link_desc_va() - Converts cookie to a virtual address of
* the MSDU Link Descriptor
* @soc: core txrx main context
* @buf_info: buf_info includes cookie that is used to lookup
* virtual address of link descriptor after deriving the page id
* and the offset or index of the desc on the associatde page.
*
* This is the VA of the link descriptor, that HAL layer later uses to
* retrieve the list of MSDU's for a given MPDU.
*
* Return: void *: Virtual Address of the Rx descriptor
*/
static inline
void *dp_rx_cookie_2_link_desc_va(struct dp_soc *soc,
struct hal_buf_info *buf_info)
{
void *link_desc_va;
struct qdf_mem_multi_page_t *pages;
uint16_t page_id = LINK_DESC_COOKIE_PAGE_ID(buf_info->sw_cookie);
pages = &soc->link_desc_pages;
if (!pages)
return NULL;
if (qdf_unlikely(page_id >= pages->num_pages))
return NULL;
link_desc_va = pages->dma_pages[page_id].page_v_addr_start +
(buf_info->paddr - pages->dma_pages[page_id].page_p_addr);
return link_desc_va;
}
/**
* dp_rx_cookie_2_mon_link_desc_va() - Converts cookie to a virtual address of
* the MSDU Link Descriptor
* @pdev: core txrx pdev context
* @buf_info: buf_info includes cookie that used to lookup virtual address of
* link descriptor. Normally this is just an index into a per pdev array.
*
* This is the VA of the link descriptor in monitor mode destination ring,
* that HAL layer later uses to retrieve the list of MSDU's for a given MPDU.
*
* Return: void *: Virtual Address of the Rx descriptor
*/
static inline
void *dp_rx_cookie_2_mon_link_desc_va(struct dp_pdev *pdev,
struct hal_buf_info *buf_info,
int mac_id)
{
void *link_desc_va;
/* TODO */
/* Add sanity for cookie */
link_desc_va =
pdev->soc->mon_link_desc_banks[mac_id][buf_info->sw_cookie]
.base_vaddr +
(buf_info->paddr -
pdev->soc->mon_link_desc_banks[mac_id][buf_info->sw_cookie]
.base_paddr);
return link_desc_va;
}
/**
* dp_rx_defrag_concat() - Concatenate the fragments
*
* @dst: destination pointer to the buffer
* @src: source pointer from where the fragment payload is to be copied
*
* Return: QDF_STATUS
*/
static inline QDF_STATUS dp_rx_defrag_concat(qdf_nbuf_t dst, qdf_nbuf_t src)
{
/*
* Inside qdf_nbuf_cat, if it is necessary to reallocate dst
* to provide space for src, the headroom portion is copied from
* the original dst buffer to the larger new dst buffer.
* (This is needed, because the headroom of the dst buffer
* contains the rx desc.)
*/
if (!qdf_nbuf_cat(dst, src)) {
/*
* qdf_nbuf_cat does not free the src memory.
* Free src nbuf before returning
* For failure case the caller takes of freeing the nbuf
*/
qdf_nbuf_free(src);
return QDF_STATUS_SUCCESS;
}
return QDF_STATUS_E_DEFRAG_ERROR;
}
#ifndef FEATURE_WDS
static inline QDF_STATUS dp_rx_ast_set_active(struct dp_soc *soc, uint16_t sa_idx, bool is_active)
{
return QDF_STATUS_SUCCESS;
}
static inline void
dp_rx_wds_srcport_learn(struct dp_soc *soc,
uint8_t *rx_tlv_hdr,
struct dp_peer *ta_peer,
qdf_nbuf_t nbuf,
struct hal_rx_msdu_metadata msdu_metadata)
{
}
#endif
/*
* dp_rx_desc_dump() - dump the sw rx descriptor
*
* @rx_desc: sw rx descriptor
*/
static inline void dp_rx_desc_dump(struct dp_rx_desc *rx_desc)
{
dp_info("rx_desc->nbuf: %pK, rx_desc->cookie: %d, rx_desc->pool_id: %d, rx_desc->in_use: %d, rx_desc->unmapped: %d",
rx_desc->nbuf, rx_desc->cookie, rx_desc->pool_id,
rx_desc->in_use, rx_desc->unmapped);
}
/*
* check_qwrap_multicast_loopback() - Check if rx packet is a loopback packet.
* In qwrap mode, packets originated from
* any vdev should not loopback and
* should be dropped.
* @vdev: vdev on which rx packet is received
* @nbuf: rx pkt
*
*/
#if ATH_SUPPORT_WRAP
static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev,
qdf_nbuf_t nbuf)
{
struct dp_vdev *psta_vdev;
struct dp_pdev *pdev = vdev->pdev;
uint8_t *data = qdf_nbuf_data(nbuf);
if (qdf_unlikely(vdev->proxysta_vdev)) {
/* In qwrap isolation mode, allow loopback packets as all
* packets go to RootAP and Loopback on the mpsta.
*/
if (vdev->isolation_vdev)
return false;
TAILQ_FOREACH(psta_vdev, &pdev->vdev_list, vdev_list_elem) {
if (qdf_unlikely(psta_vdev->proxysta_vdev &&
!qdf_mem_cmp(psta_vdev->mac_addr.raw,
&data[QDF_MAC_ADDR_SIZE],
QDF_MAC_ADDR_SIZE))) {
/* Drop packet if source address is equal to
* any of the vdev addresses.
*/
return true;
}
}
}
return false;
}
#else
static inline bool check_qwrap_multicast_loopback(struct dp_vdev *vdev,
qdf_nbuf_t nbuf)
{
return false;
}
#endif
#if defined(WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG) ||\
defined(WLAN_SUPPORT_RX_TAG_STATISTICS) ||\
defined(WLAN_SUPPORT_RX_FLOW_TAG)
#include "dp_rx_tag.h"
#endif
#ifndef WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG
/**
* dp_rx_update_protocol_tag() - Reads CCE metadata from the RX MSDU end TLV
* and set the corresponding tag in QDF packet
* @soc: core txrx main context
* @vdev: vdev on which the packet is received
* @nbuf: QDF pkt buffer on which the protocol tag should be set
* @rx_tlv_hdr: rBbase address where the RX TLVs starts
* @ring_index: REO ring number, not used for error & monitor ring
* @is_reo_exception: flag to indicate if rx from REO ring or exception ring
* @is_update_stats: flag to indicate whether to update stats or not
* Return: void
*/
static inline void
dp_rx_update_protocol_tag(struct dp_soc *soc, struct dp_vdev *vdev,
qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr,
uint16_t ring_index,
bool is_reo_exception, bool is_update_stats)
{
}
#endif /* WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG */
#ifndef WLAN_SUPPORT_RX_FLOW_TAG
/**
* dp_rx_update_flow_tag() - Reads FSE metadata from the RX MSDU end TLV
* and set the corresponding tag in QDF packet
* @soc: core txrx main context
* @vdev: vdev on which the packet is received
* @nbuf: QDF pkt buffer on which the protocol tag should be set
* @rx_tlv_hdr: base address where the RX TLVs starts
* @is_update_stats: flag to indicate whether to update stats or not
*
* Return: void
*/
static inline void
dp_rx_update_flow_tag(struct dp_soc *soc, struct dp_vdev *vdev,
qdf_nbuf_t nbuf, uint8_t *rx_tlv_hdr, bool update_stats)
{
}
#endif /* WLAN_SUPPORT_RX_FLOW_TAG */
#if !defined(WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG) &&\
!defined(WLAN_SUPPORT_RX_FLOW_TAG)
/**
* dp_rx_mon_update_protocol_flow_tag() - Performs necessary checks for monitor
* mode and then tags appropriate packets
* @soc: core txrx main context
* @vdev: pdev on which packet is received
* @msdu: QDF packet buffer on which the protocol tag should be set
* @rx_desc: base address where the RX TLVs start
* Return: void
*/
static inline
void dp_rx_mon_update_protocol_flow_tag(struct dp_soc *soc,
struct dp_pdev *dp_pdev,
qdf_nbuf_t msdu, void *rx_desc)
{
}
#endif /* WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG || WLAN_SUPPORT_RX_FLOW_TAG */
/*
* dp_rx_buffers_replenish() - replenish rxdma ring with rx nbufs
* called during dp rx initialization
* and at the end of dp_rx_process.
*
* @soc: core txrx main context
* @mac_id: mac_id which is one of 3 mac_ids
* @dp_rxdma_srng: dp rxdma circular ring
* @rx_desc_pool: Pointer to free Rx descriptor pool
* @num_req_buffers: number of buffer to be replenished
* @desc_list: list of descs if called from dp_rx_process
* or NULL during dp rx initialization or out of buffer
* interrupt.
* @tail: tail of descs list
* Return: return success or failure
*/
QDF_STATUS dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
struct dp_srng *dp_rxdma_srng,
struct rx_desc_pool *rx_desc_pool,
uint32_t num_req_buffers,
union dp_rx_desc_list_elem_t **desc_list,
union dp_rx_desc_list_elem_t **tail);
/*
* dp_pdev_rx_buffers_attach() - replenish rxdma ring with rx nbufs
* called during dp rx initialization
*
* @soc: core txrx main context
* @mac_id: mac_id which is one of 3 mac_ids
* @dp_rxdma_srng: dp rxdma circular ring
* @rx_desc_pool: Pointer to free Rx descriptor pool
* @num_req_buffers: number of buffer to be replenished
*
* Return: return success or failure
*/
QDF_STATUS
dp_pdev_rx_buffers_attach(struct dp_soc *dp_soc, uint32_t mac_id,
struct dp_srng *dp_rxdma_srng,
struct rx_desc_pool *rx_desc_pool,
uint32_t num_req_buffers);
/**
* dp_rx_link_desc_return() - Return a MPDU link descriptor to HW
* (WBM), following error handling
*
* @soc: core DP main context
* @buf_addr_info: opaque pointer to the REO error ring descriptor
* @buf_addr_info: void pointer to the buffer_addr_info
* @bm_action: put to idle_list or release to msdu_list
*
* Return: QDF_STATUS_E_FAILURE for failure else QDF_STATUS_SUCCESS
*/
QDF_STATUS
dp_rx_link_desc_return(struct dp_soc *soc, hal_ring_desc_t ring_desc,
uint8_t bm_action);
/**
* dp_rx_link_desc_return_by_addr - Return a MPDU link descriptor to
* (WBM) by address
*
* @soc: core DP main context
* @link_desc_addr: link descriptor addr
*
* Return: QDF_STATUS_E_FAILURE for failure else QDF_STATUS_SUCCESS
*/
QDF_STATUS
dp_rx_link_desc_return_by_addr(struct dp_soc *soc,
hal_buff_addrinfo_t link_desc_addr,
uint8_t bm_action);
/**
* dp_rxdma_err_process() - RxDMA error processing functionality
* @soc: core txrx main contex
* @mac_id: mac id which is one of 3 mac_ids
* @hal_ring: opaque pointer to the HAL Rx Ring, which will be serviced
* @quota: No. of units (packets) that can be serviced in one shot.
*
* Return: num of buffers processed
*/
uint32_t
dp_rxdma_err_process(struct dp_intr *int_ctx, struct dp_soc *soc,
uint32_t mac_id, uint32_t quota);
void dp_rx_fill_mesh_stats(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
uint8_t *rx_tlv_hdr, struct dp_peer *peer);
QDF_STATUS dp_rx_filter_mesh_packets(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
uint8_t *rx_tlv_hdr);
int dp_wds_rx_policy_check(uint8_t *rx_tlv_hdr, struct dp_vdev *vdev,
struct dp_peer *peer);
qdf_nbuf_t
dp_rx_nbuf_prepare(struct dp_soc *soc, struct dp_pdev *pdev);
/*
* dp_rx_dump_info_and_assert() - dump RX Ring info and Rx Desc info
*
* @soc: core txrx main context
* @hal_ring: opaque pointer to the HAL Rx Ring, which will be serviced
* @ring_desc: opaque pointer to the RX ring descriptor
* @rx_desc: host rs descriptor
*
* Return: void
*/
void dp_rx_dump_info_and_assert(struct dp_soc *soc,
hal_ring_handle_t hal_ring_hdl,
hal_ring_desc_t ring_desc,
struct dp_rx_desc *rx_desc);
void dp_rx_compute_delay(struct dp_vdev *vdev, qdf_nbuf_t nbuf);
#ifdef RX_DESC_DEBUG_CHECK
/**
* dp_rx_desc_check_magic() - check the magic value in dp_rx_desc
* @rx_desc: rx descriptor pointer
*
* Return: true, if magic is correct, else false.
*/
static inline bool dp_rx_desc_check_magic(struct dp_rx_desc *rx_desc)
{
if (qdf_unlikely(rx_desc->magic != DP_RX_DESC_MAGIC))
return false;
rx_desc->magic = 0;
return true;
}
/**
* dp_rx_desc_prep() - prepare rx desc
* @rx_desc: rx descriptor pointer to be prepared
* @nbuf: nbuf to be associated with rx_desc
*
* Note: assumption is that we are associating a nbuf which is mapped
*
* Return: none
*/
static inline void dp_rx_desc_prep(struct dp_rx_desc *rx_desc, qdf_nbuf_t nbuf)
{
rx_desc->magic = DP_RX_DESC_MAGIC;
rx_desc->nbuf = nbuf;
rx_desc->unmapped = 0;
}
#else
static inline bool dp_rx_desc_check_magic(struct dp_rx_desc *rx_desc)
{
return true;
}
static inline void dp_rx_desc_prep(struct dp_rx_desc *rx_desc, qdf_nbuf_t nbuf)
{
rx_desc->nbuf = nbuf;
rx_desc->unmapped = 0;
}
#endif /* RX_DESC_DEBUG_CHECK */
void dp_rx_process_rxdma_err(struct dp_soc *soc, qdf_nbuf_t nbuf,
uint8_t *rx_tlv_hdr, struct dp_peer *peer,
uint8_t err_code, uint8_t mac_id);
#ifdef PEER_CACHE_RX_PKTS
/**
* dp_rx_flush_rx_cached() - flush cached rx frames
* @peer: peer
* @drop: set flag to drop frames
*
* Return: None
*/
void dp_rx_flush_rx_cached(struct dp_peer *peer, bool drop);
#else
static inline void dp_rx_flush_rx_cached(struct dp_peer *peer, bool drop)
{
}
#endif
#ifndef QCA_MULTIPASS_SUPPORT
static inline
bool dp_rx_multipass_process(struct dp_peer *peer, qdf_nbuf_t nbuf, uint8_t tid)
{
return false;
}
#else
bool dp_rx_multipass_process(struct dp_peer *peer, qdf_nbuf_t nbuf,
uint8_t tid);
#endif
#ifndef WLAN_RX_PKT_CAPTURE_ENH
static inline
void dp_peer_set_rx_capture_enabled(struct dp_peer *peer_handle, bool value)
{
}
#endif
/**
* dp_rx_deliver_to_stack() - deliver pkts to network stack
* Caller to hold peer refcount and check for valid peer
* @soc: soc
* @vdev: vdev
* @peer: peer
* @nbuf_head: skb list head
* @nbuf_tail: skb list tail
*
* Return: None
*/
void dp_rx_deliver_to_stack(struct dp_soc *soc,
struct dp_vdev *vdev,
struct dp_peer *peer,
qdf_nbuf_t nbuf_head,
qdf_nbuf_t nbuf_tail);
#endif /* _DP_RX_H */