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qcacmn: Enable support for receive defragmentation

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Enable support for receive defragmentation on Lithium.

Change-Id: I6c1213db29d3b6e0a11506d6945d9ea05ece2c73
CRs-Fixed: 1109359
This commit is contained in:
Ravi Joshi
2016-11-09 17:09:47 -08:00
committed by snandini
parent e7148bdd67
commit 36f68ad7cb
10 changed files with 2026 additions and 69 deletions
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109
dp/wifi3.0/dp_rx_defrag.h
View File

@@ -16,9 +16,116 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef _DP_RX_DEFRAG_H
#ifndef _DP_RX_DEFRAG_H
#define _DP_RX_DEFRAG_H
#include "hal_rx.h"
#ifdef CONFIG_MCL
#include <cds_ieee80211_common.h>
#else
#include <ieee80211.h>
#endif
#define DEFRAG_IEEE80211_ADDR_LEN 6
#define DEFRAG_IEEE80211_KEY_LEN 8
#define DEFRAG_IEEE80211_FCS_LEN 4
#define DP_RX_DEFRAG_IEEE80211_ADDR_COPY(dst, src) \
qdf_mem_copy(dst, src, IEEE80211_ADDR_LEN)
#define DP_RX_DEFRAG_IEEE80211_QOS_HAS_SEQ(wh) \
(((wh) & \
(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
(IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
/**
* struct dp_rx_defrag_cipher: structure to indicate cipher header
* @ic_name: Name
* @ic_header: header length
* @ic_trailer: trail length
* @ic_miclen: MIC length
*/
struct dp_rx_defrag_cipher {
const char *ic_name;
uint16_t ic_header;
uint8_t ic_trailer;
uint8_t ic_miclen;
};
uint32_t dp_rx_frag_handle(struct dp_soc *soc, void *ring_desc,
struct hal_rx_mpdu_desc_info *mpdu_desc_info,
union dp_rx_desc_list_elem_t **head,
union dp_rx_desc_list_elem_t **tail,
uint32_t quota);
/*
* dp_rx_frag_get_mac_hdr() - Return pointer to the mac hdr
* @rx_desc_info: Pointer to the pkt_tlvs in the
* nbuf (pkt_tlvs->mac_hdr->data)
*
* It is inefficient to peek into the packet for received
* frames but these APIs are required to get to some of
* 802.11 fields that hardware does not populate in the
* rx meta data.
*
* Returns: pointer to ieee80211_frame
*/
static inline
struct ieee80211_frame *dp_rx_frag_get_mac_hdr(uint8_t *rx_desc_info)
{
int rx_desc_len = hal_rx_get_desc_len();
return (struct ieee80211_frame *)(rx_desc_info + rx_desc_len);
}
/*
* dp_rx_frag_get_mpdu_seq_number() - Get mpdu sequence number
* @rx_desc_info: Pointer to the pkt_tlvs in the
* nbuf (pkt_tlvs->mac_hdr->data)
*
* Returns: uint16_t, rx sequence number
*/
static inline
uint16_t dp_rx_frag_get_mpdu_seq_number(uint8_t *rx_desc_info)
{
struct ieee80211_frame *mac_hdr;
mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info);
return qdf_le16_to_cpu(*(uint16_t *) mac_hdr->i_seq) >>
IEEE80211_SEQ_SEQ_SHIFT;
}
/*
* dp_rx_frag_get_mpdu_frag_number() - Get mpdu fragment number
* @rx_desc_info: Pointer to the pkt_tlvs in the
* nbuf (pkt_tlvs->mac_hdr->data)
*
* Returns: uint8_t, receive fragment number
*/
static inline
uint8_t dp_rx_frag_get_mpdu_frag_number(uint8_t *rx_desc_info)
{
struct ieee80211_frame *mac_hdr;
mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info);
return qdf_le16_to_cpu(*(uint16_t *) mac_hdr->i_seq) &
IEEE80211_SEQ_FRAG_MASK;
}
/*
* dp_rx_frag_get_more_frag_bit() - Get more fragment bit
* @rx_desc_info: Pointer to the pkt_tlvs in the
* nbuf (pkt_tlvs->mac_hdr->data)
*
* Returns: uint8_t, get more fragment bit
*/
static inline
uint8_t dp_rx_frag_get_more_frag_bit(uint8_t *rx_desc_info)
{
struct ieee80211_frame *mac_hdr;
mac_hdr = dp_rx_frag_get_mac_hdr(rx_desc_info);
return mac_hdr->i_fc[1] & IEEE80211_FC1_MORE_FRAG;
}
#endif /* _DP_RX_DEFRAG_H */