core/dp/htt/htt_internal.h - platform/vendor/qcom-opensource/wlan/qcacld-3.0 - Gitiles

 /*
  * Copyright (c) 2011, 2014-2015 The Linux Foundation. All rights reserved.
  *
  * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
  *
  *
  * 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.
  */

 /*
  * This file was originally distributed by Qualcomm Atheros, Inc.
  * under proprietary terms before Copyright ownership was assigned
  * to the Linux Foundation.
  */

 #ifndef _HTT_INTERNAL__H_
 #define _HTT_INTERNAL__H_

 #include <athdefs.h>            /* A_STATUS */
 #include <cdf_nbuf.h>           /* cdf_nbuf_t */
 #include <cdf_util.h>           /* cdf_assert */
 #include <htc_api.h>            /* HTC_PACKET */

 #include <htt_types.h>

 #ifndef offsetof
 #define offsetof(type, field)   ((size_t)(&((type *)0)->field))
 #endif

 #undef MS
 #define MS(_v, _f) (((_v) & _f ## _MASK) >> _f ## _LSB)
 #undef SM
 #define SM(_v, _f) (((_v) << _f ## _LSB) & _f ## _MASK)
 #undef WO
 #define WO(_f)      ((_f ## _OFFSET) >> 2)

 #define GET_FIELD(_addr, _f) MS(*((A_UINT32 *)(_addr) + WO(_f)), _f)

 #include <rx_desc.h>
 #include <wal_rx_desc.h>        /* struct rx_attention, etc */

 struct htt_host_fw_desc_base {
 	union {
 		struct fw_rx_desc_base val;
 		A_UINT32 dummy_pad;     /* make sure it is DOWRD aligned */
 	} u;
 };

 /*
  * This struct defines the basic descriptor information used by host,
  * which is written either by the 11ac HW MAC into the host Rx data
  * buffer ring directly or generated by FW and copied from Rx indication
  */
 #define RX_HTT_HDR_STATUS_LEN 64
 struct htt_host_rx_desc_base {
 	struct htt_host_fw_desc_base fw_desc;
 	struct rx_attention attention;
 	struct rx_frag_info frag_info;
 	struct rx_mpdu_start mpdu_start;
 	struct rx_msdu_start msdu_start;
 	struct rx_msdu_end msdu_end;
 	struct rx_mpdu_end mpdu_end;
 	struct rx_ppdu_start ppdu_start;
 	struct rx_ppdu_end ppdu_end;
 	char rx_hdr_status[RX_HTT_HDR_STATUS_LEN];
 };

 #define RX_STD_DESC_ATTN_OFFSET	\
 	(offsetof(struct htt_host_rx_desc_base, attention))
 #define RX_STD_DESC_FRAG_INFO_OFFSET \
 	(offsetof(struct htt_host_rx_desc_base, frag_info))
 #define RX_STD_DESC_MPDU_START_OFFSET \
 	(offsetof(struct htt_host_rx_desc_base, mpdu_start))
 #define RX_STD_DESC_MSDU_START_OFFSET \
 	(offsetof(struct htt_host_rx_desc_base, msdu_start))
 #define RX_STD_DESC_MSDU_END_OFFSET \
 	(offsetof(struct htt_host_rx_desc_base, msdu_end))
 #define RX_STD_DESC_MPDU_END_OFFSET \
 	(offsetof(struct htt_host_rx_desc_base, mpdu_end))
 #define RX_STD_DESC_PPDU_START_OFFSET \
 	(offsetof(struct htt_host_rx_desc_base, ppdu_start))
 #define RX_STD_DESC_PPDU_END_OFFSET \
 	(offsetof(struct htt_host_rx_desc_base, ppdu_end))
 #define RX_STD_DESC_HDR_STATUS_OFFSET \
 	(offsetof(struct htt_host_rx_desc_base, rx_hdr_status))

 #define RX_STD_DESC_FW_MSDU_OFFSET \
 	(offsetof(struct htt_host_rx_desc_base, fw_desc))

 #define RX_STD_DESC_SIZE (sizeof(struct htt_host_rx_desc_base))

 #define RX_DESC_ATTN_OFFSET32       (RX_STD_DESC_ATTN_OFFSET >> 2)
 #define RX_DESC_FRAG_INFO_OFFSET32  (RX_STD_DESC_FRAG_INFO_OFFSET >> 2)
 #define RX_DESC_MPDU_START_OFFSET32 (RX_STD_DESC_MPDU_START_OFFSET >> 2)
 #define RX_DESC_MSDU_START_OFFSET32 (RX_STD_DESC_MSDU_START_OFFSET >> 2)
 #define RX_DESC_MSDU_END_OFFSET32   (RX_STD_DESC_MSDU_END_OFFSET >> 2)
 #define RX_DESC_MPDU_END_OFFSET32   (RX_STD_DESC_MPDU_END_OFFSET >> 2)
 #define RX_DESC_PPDU_START_OFFSET32 (RX_STD_DESC_PPDU_START_OFFSET >> 2)
 #define RX_DESC_PPDU_END_OFFSET32   (RX_STD_DESC_PPDU_END_OFFSET >> 2)
 #define RX_DESC_HDR_STATUS_OFFSET32 (RX_STD_DESC_HDR_STATUS_OFFSET >> 2)

 #define RX_STD_DESC_SIZE_DWORD      (RX_STD_DESC_SIZE >> 2)

 /*
  * Make sure there is a minimum headroom provided in the rx netbufs
  * for use by the OS shim and OS and rx data consumers.
  */
 #define HTT_RX_BUF_OS_MIN_HEADROOM 32
 #define HTT_RX_STD_DESC_RESERVATION  \
 	((HTT_RX_BUF_OS_MIN_HEADROOM > RX_STD_DESC_SIZE) ? \
 	 HTT_RX_BUF_OS_MIN_HEADROOM : RX_STD_DESC_SIZE)
 #define HTT_RX_DESC_RESERVATION32 \
 	(HTT_RX_STD_DESC_RESERVATION >> 2)

 #define HTT_RX_DESC_ALIGN_MASK 7        /* 8-byte alignment */
 static inline struct htt_host_rx_desc_base *htt_rx_desc(cdf_nbuf_t msdu)
 {
 	return (struct htt_host_rx_desc_base *)
 	       (((size_t) (cdf_nbuf_head(msdu) + HTT_RX_DESC_ALIGN_MASK)) &
 		~HTT_RX_DESC_ALIGN_MASK);
 }

 #if defined(FEATURE_LRO)
 /**
  * htt_print_rx_desc_lro() - print LRO information in the rx
  * descriptor
  * @rx_desc: HTT rx descriptor
  *
  * Prints the LRO related fields in the HTT rx descriptor
  *
  * Return: none
  */
 static inline void htt_print_rx_desc_lro(struct htt_host_rx_desc_base *rx_desc)
 {
 	cdf_print
 		("----------------------RX DESC LRO----------------------\n");
 	cdf_print("msdu_end.lro_eligible:0x%x\n",
 		 rx_desc->msdu_end.lro_eligible);
 	cdf_print("msdu_start.tcp_only_ack:0x%x\n",
 		 rx_desc->msdu_start.tcp_only_ack);
 	cdf_print("msdu_end.tcp_udp_chksum:0x%x\n",
 		 rx_desc->msdu_end.tcp_udp_chksum);
 	cdf_print("msdu_end.tcp_seq_number:0x%x\n",
 		 rx_desc->msdu_end.tcp_seq_number);
 	cdf_print("msdu_end.tcp_ack_number:0x%x\n",
 		 rx_desc->msdu_end.tcp_ack_number);
 	cdf_print("msdu_start.tcp_proto:0x%x\n",
 		 rx_desc->msdu_start.tcp_proto);
 	cdf_print("msdu_start.ipv6_proto:0x%x\n",
 		 rx_desc->msdu_start.ipv6_proto);
 	cdf_print("msdu_start.ipv4_proto:0x%x\n",
 		 rx_desc->msdu_start.ipv4_proto);
 	cdf_print("msdu_start.l3_offset:0x%x\n",
 		 rx_desc->msdu_start.l3_offset);
 	cdf_print("msdu_start.l4_offset:0x%x\n",
 		 rx_desc->msdu_start.l4_offset);
 	cdf_print("msdu_start.flow_id_toeplitz:0x%x\n",
 			   rx_desc->msdu_start.flow_id_toeplitz);
 	cdf_print
 		("---------------------------------------------------------\n");
 }

 /**
  * htt_print_rx_desc_lro() - extract LRO information from the rx
  * descriptor
  * @msdu: network buffer
  * @rx_desc: HTT rx descriptor
  *
  * Extracts the LRO related fields from the HTT rx descriptor
  * and stores them in the network buffer's control block
  *
  * Return: none
  */
 static inline void htt_rx_extract_lro_info(cdf_nbuf_t msdu,
 	 struct htt_host_rx_desc_base *rx_desc)
 {
 	NBUF_LRO_ELIGIBLE(msdu) = rx_desc->msdu_end.lro_eligible;
 	if (rx_desc->msdu_end.lro_eligible) {
 		NBUF_TCP_PURE_ACK(msdu) = rx_desc->msdu_start.tcp_only_ack;
 		NBUF_TCP_CHKSUM(msdu) = rx_desc->msdu_end.tcp_udp_chksum;
 		NBUF_TCP_SEQ_NUM(msdu) = rx_desc->msdu_end.tcp_seq_number;
 		NBUF_TCP_ACK_NUM(msdu) = rx_desc->msdu_end.tcp_ack_number;
 		NBUF_TCP_WIN(msdu) = rx_desc->msdu_end.window_size;
 		NBUF_TCP_PROTO(msdu) = rx_desc->msdu_start.tcp_proto;
 		NBUF_IPV6_PROTO(msdu) = rx_desc->msdu_start.ipv6_proto;
 		NBUF_IP_OFFSET(msdu) = rx_desc->msdu_start.l3_offset;
 		NBUF_TCP_OFFSET(msdu) = rx_desc->msdu_start.l4_offset;
 		NBUF_FLOW_ID_TOEPLITZ(msdu) =
 			 rx_desc->msdu_start.flow_id_toeplitz;
 	}
 }
 #else
 static inline void htt_print_rx_desc_lro(struct htt_host_rx_desc_base *rx_desc)
 {}
 static inline void htt_rx_extract_lro_info(cdf_nbuf_t msdu,
 	 struct htt_host_rx_desc_base *rx_desc) {}
 #endif /* FEATURE_LRO */

 static inline void htt_print_rx_desc(struct htt_host_rx_desc_base *rx_desc)
 {
 	cdf_print
 		("----------------------RX DESC----------------------------\n");
 	cdf_print("attention: %#010x\n",
 		  (unsigned int)(*(uint32_t *) &rx_desc->attention));
 	cdf_print("frag_info: %#010x\n",
 		  (unsigned int)(*(uint32_t *) &rx_desc->frag_info));
 	cdf_print("mpdu_start: %#010x %#010x %#010x\n",
 		  (unsigned int)(((uint32_t *) &rx_desc->mpdu_start)[0]),
 		  (unsigned int)(((uint32_t *) &rx_desc->mpdu_start)[1]),
 		  (unsigned int)(((uint32_t *) &rx_desc->mpdu_start)[2]));
 	cdf_print("msdu_start: %#010x %#010x %#010x\n",
 		  (unsigned int)(((uint32_t *) &rx_desc->msdu_start)[0]),
 		  (unsigned int)(((uint32_t *) &rx_desc->msdu_start)[1]),
 		  (unsigned int)(((uint32_t *) &rx_desc->msdu_start)[2]));
 	cdf_print("msdu_end: %#010x %#010x %#010x %#010x %#010x\n",
 		  (unsigned int)(((uint32_t *) &rx_desc->msdu_end)[0]),
 		  (unsigned int)(((uint32_t *) &rx_desc->msdu_end)[1]),
 		  (unsigned int)(((uint32_t *) &rx_desc->msdu_end)[2]),
 		  (unsigned int)(((uint32_t *) &rx_desc->msdu_end)[3]),
 		  (unsigned int)(((uint32_t *) &rx_desc->msdu_end)[4]));
 	cdf_print("mpdu_end: %#010x\n",
 		  (unsigned int)(*(uint32_t *) &rx_desc->mpdu_end));
 	cdf_print("ppdu_start: " "%#010x %#010x %#010x %#010x %#010x\n"
 		  "%#010x %#010x %#010x %#010x %#010x\n",
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[0]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[1]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[2]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[3]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[4]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[5]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[6]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[7]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[8]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[9]));
 	cdf_print("ppdu_end:" "%#010x %#010x %#010x %#010x %#010x\n"
 		  "%#010x %#010x %#010x %#010x %#010x\n"
 		  "%#010x,%#010x %#010x %#010x %#010x\n"
 		  "%#010x %#010x %#010x %#010x %#010x\n" "%#010x %#010x\n",
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[0]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[1]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[2]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[3]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[4]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[5]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[6]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[7]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[8]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[9]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[10]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[11]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[12]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[13]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[14]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[15]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[16]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[17]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[18]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[19]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[20]),
 		  (unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[21]));
 	cdf_print
 		("---------------------------------------------------------\n");
 }

 #ifndef HTT_ASSERT_LEVEL
 #define HTT_ASSERT_LEVEL 3
 #endif

 #define HTT_ASSERT_ALWAYS(condition) cdf_assert_always((condition))

 #define HTT_ASSERT0(condition) cdf_assert((condition))
 #if HTT_ASSERT_LEVEL > 0
 #define HTT_ASSERT1(condition) cdf_assert((condition))
 #else
 #define HTT_ASSERT1(condition)
 #endif

 #if HTT_ASSERT_LEVEL > 1
 #define HTT_ASSERT2(condition) cdf_assert((condition))
 #else
 #define HTT_ASSERT2(condition)
 #endif

 #if HTT_ASSERT_LEVEL > 2
 #define HTT_ASSERT3(condition) cdf_assert((condition))
 #else
 #define HTT_ASSERT3(condition)
 #endif

 #define HTT_MAC_ADDR_LEN 6

 /*
  * HTT_MAX_SEND_QUEUE_DEPTH -
  * How many packets HTC should allow to accumulate in a send queue
  * before calling the EpSendFull callback to see whether to retain
  * or drop packets.
  * This is not relevant for LL, where tx descriptors should be immediately
  * downloaded to the target.
  * This is not very relevant for HL either, since it is anticipated that
  * the HL tx download scheduler will not work this far in advance - rather,
  * it will make its decisions just-in-time, so it can be responsive to
  * changing conditions.
  * Hence, this queue depth threshold spec is mostly just a formality.
  */
 #define HTT_MAX_SEND_QUEUE_DEPTH 64

 #define IS_PWR2(value) (((value) ^ ((value)-1)) == ((value) << 1) - 1)

 /* FIX THIS
  * Should be: sizeof(struct htt_host_rx_desc) + max rx MSDU size,
  * rounded up to a cache line size.
  */
 #define HTT_RX_BUF_SIZE 1920
 /*
  * DMA_MAP expects the buffer to be an integral number of cache lines.
  * Rather than checking the actual cache line size, this code makes a
  * conservative estimate of what the cache line size could be.
  */
 #define HTT_LOG2_MAX_CACHE_LINE_SIZE 7  /* 2^7 = 128 */
 #define HTT_MAX_CACHE_LINE_SIZE_MASK ((1 << HTT_LOG2_MAX_CACHE_LINE_SIZE) - 1)

 #ifdef BIG_ENDIAN_HOST
 /*
  * big-endian: bytes within a 4-byte "word" are swapped:
  * pre-swap  post-swap
  *  index     index
  *    0         3
  *    1         2
  *    2         1
  *    3         0
  *    4         7
  *    5         6
  * etc.
  * To compute the post-swap index from the pre-swap index, compute
  * the byte offset for the start of the word (index & ~0x3) and add
  * the swapped byte offset within the word (3 - (index & 0x3)).
  */
 #define HTT_ENDIAN_BYTE_IDX_SWAP(idx) (((idx) & ~0x3) + (3 - ((idx) & 0x3)))
 #else
 /* little-endian: no adjustment needed */
 #define HTT_ENDIAN_BYTE_IDX_SWAP(idx) idx
 #endif

 #define HTT_TX_MUTEX_INIT(_mutex)			\
 	cdf_spinlock_init(_mutex)

 #define HTT_TX_MUTEX_ACQUIRE(_mutex)			\
 	cdf_spin_lock_bh(_mutex)

 #define HTT_TX_MUTEX_RELEASE(_mutex)			\
 	cdf_spin_unlock_bh(_mutex)

 #define HTT_TX_MUTEX_DESTROY(_mutex)			\
 	cdf_spinlock_destroy(_mutex)

 #define HTT_TX_DESC_PADDR(_pdev, _tx_desc_vaddr)       \
 	((_pdev)->tx_descs.pool_paddr +  (uint32_t)	  \
 	 ((char *)(_tx_desc_vaddr) -			   \
 	  (char *)((_pdev)->tx_descs.pool_vaddr)))

 #ifdef ATH_11AC_TXCOMPACT

 #define HTT_TX_NBUF_QUEUE_MUTEX_INIT(_pdev)		\
 	cdf_spinlock_init(&_pdev->txnbufq_mutex)

 #define HTT_TX_NBUF_QUEUE_MUTEX_DESTROY(_pdev)	       \
 	HTT_TX_MUTEX_DESTROY(&_pdev->txnbufq_mutex)

 #define HTT_TX_NBUF_QUEUE_REMOVE(_pdev, _msdu)	do {	\
 	HTT_TX_MUTEX_ACQUIRE(&_pdev->txnbufq_mutex);	\
 	_msdu =  cdf_nbuf_queue_remove(&_pdev->txnbufq);\
 	HTT_TX_MUTEX_RELEASE(&_pdev->txnbufq_mutex);    \
 	} while (0)

 #define HTT_TX_NBUF_QUEUE_ADD(_pdev, _msdu) do {	\
 	HTT_TX_MUTEX_ACQUIRE(&_pdev->txnbufq_mutex);	\
 	cdf_nbuf_queue_add(&_pdev->txnbufq, _msdu);     \
 	HTT_TX_MUTEX_RELEASE(&_pdev->txnbufq_mutex);    \
 	} while (0)

 #define HTT_TX_NBUF_QUEUE_INSERT_HEAD(_pdev, _msdu) do {   \
 	HTT_TX_MUTEX_ACQUIRE(&_pdev->txnbufq_mutex);	   \
 	cdf_nbuf_queue_insert_head(&_pdev->txnbufq, _msdu);\
 	HTT_TX_MUTEX_RELEASE(&_pdev->txnbufq_mutex);       \
 	} while (0)
 #else

 #define HTT_TX_NBUF_QUEUE_MUTEX_INIT(_pdev)
 #define HTT_TX_NBUF_QUEUE_REMOVE(_pdev, _msdu)
 #define HTT_TX_NBUF_QUEUE_ADD(_pdev, _msdu)
 #define HTT_TX_NBUF_QUEUE_INSERT_HEAD(_pdev, _msdu)
 #define HTT_TX_NBUF_QUEUE_MUTEX_DESTROY(_pdev)

 #endif

 #ifdef ATH_11AC_TXCOMPACT
 #define HTT_TX_SCHED htt_tx_sched
 #else
 #define HTT_TX_SCHED(pdev)      /* no-op */
 #endif

 int htt_tx_attach(struct htt_pdev_t *pdev, int desc_pool_elems);

 void htt_tx_detach(struct htt_pdev_t *pdev);

 int htt_rx_attach(struct htt_pdev_t *pdev);

 void htt_rx_detach(struct htt_pdev_t *pdev);

 int htt_htc_attach(struct htt_pdev_t *pdev);

 void htt_t2h_msg_handler(void *context, HTC_PACKET *pkt);

 void htt_h2t_send_complete(void *context, HTC_PACKET *pkt);

 A_STATUS htt_h2t_ver_req_msg(struct htt_pdev_t *pdev);

 #if defined(HELIUMPLUS_PADDR64)
 A_STATUS
 htt_h2t_frag_desc_bank_cfg_msg(struct htt_pdev_t *pdev);
 #endif /* defined(HELIUMPLUS_PADDR64) */

 extern A_STATUS htt_h2t_rx_ring_cfg_msg_ll(struct htt_pdev_t *pdev);
 extern A_STATUS (*htt_h2t_rx_ring_cfg_msg)(struct htt_pdev_t *pdev);

 HTC_SEND_FULL_ACTION htt_h2t_full(void *context, HTC_PACKET *pkt);

 struct htt_htc_pkt *htt_htc_pkt_alloc(struct htt_pdev_t *pdev);

 void htt_htc_pkt_free(struct htt_pdev_t *pdev, struct htt_htc_pkt *pkt);

 void htt_htc_pkt_pool_free(struct htt_pdev_t *pdev);

 #ifdef ATH_11AC_TXCOMPACT
 void
 htt_htc_misc_pkt_list_add(struct htt_pdev_t *pdev, struct htt_htc_pkt *pkt);

 void htt_htc_misc_pkt_pool_free(struct htt_pdev_t *pdev);
 #endif

 void htt_htc_disable_aspm(void);

 int
 htt_rx_hash_list_insert(struct htt_pdev_t *pdev, uint32_t paddr,
 			cdf_nbuf_t netbuf);

 cdf_nbuf_t htt_rx_hash_list_lookup(struct htt_pdev_t *pdev, uint32_t paddr);

 #ifdef IPA_OFFLOAD
 int
 htt_tx_ipa_uc_attach(struct htt_pdev_t *pdev,
 		     unsigned int uc_tx_buf_sz,
 		     unsigned int uc_tx_buf_cnt,
 		     unsigned int uc_tx_partition_base);

 int
 htt_rx_ipa_uc_attach(struct htt_pdev_t *pdev, unsigned int rx_ind_ring_size);

 int htt_tx_ipa_uc_detach(struct htt_pdev_t *pdev);

 int htt_rx_ipa_uc_detach(struct htt_pdev_t *pdev);
 #else
 static inline int
 htt_tx_ipa_uc_attach(struct htt_pdev_t *pdev,
 		     unsigned int uc_tx_buf_sz,
 		     unsigned int uc_tx_buf_cnt,
 		     unsigned int uc_tx_partition_base)
 {
 	return 0;
 }

 static inline int
 htt_rx_ipa_uc_attach(struct htt_pdev_t *pdev, unsigned int rx_ind_ring_size)
 {
 	return 0;
 }

 static inline int htt_tx_ipa_uc_detach(struct htt_pdev_t *pdev)
 {
 	return 0;
 }

 static inline int htt_rx_ipa_uc_detach(struct htt_pdev_t *pdev)
 {
 	return 0;
 }
 #endif /* IPA_OFFLOAD */
 #endif /* _HTT_INTERNAL__H_ */
	/*
	* Copyright (c) 2011, 2014-2015 The Linux Foundation. All rights reserved.
	*
	* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
	*
	*
	* 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.
	*/

	/*
	* This file was originally distributed by Qualcomm Atheros, Inc.
	* under proprietary terms before Copyright ownership was assigned
	* to the Linux Foundation.
	*/

	#ifndef _HTT_INTERNAL__H_
	#define _HTT_INTERNAL__H_

	#include <athdefs.h> /* A_STATUS */
	#include <cdf_nbuf.h> /* cdf_nbuf_t */
	#include <cdf_util.h> /* cdf_assert */
	#include <htc_api.h> /* HTC_PACKET */

	#include <htt_types.h>

	#ifndef offsetof
	#define offsetof(type, field) ((size_t)(&((type *)0)->field))
	#endif

	#undef MS
	#define MS(_v, _f) (((_v) & _f ## _MASK) >> _f ## _LSB)
	#undef SM
	#define SM(_v, _f) (((_v) << _f ## _LSB) & _f ## _MASK)
	#undef WO
	#define WO(_f) ((_f ## _OFFSET) >> 2)

	#define GET_FIELD(_addr, _f) MS(((A_UINT32 )(_addr) + WO(_f)), _f)

	#include <rx_desc.h>
	#include <wal_rx_desc.h> /* struct rx_attention, etc */

	struct htt_host_fw_desc_base {
	union {
	struct fw_rx_desc_base val;
	A_UINT32 dummy_pad; /* make sure it is DOWRD aligned */
	} u;
	};

	/*
	* This struct defines the basic descriptor information used by host,
	* which is written either by the 11ac HW MAC into the host Rx data
	* buffer ring directly or generated by FW and copied from Rx indication
	*/
	#define RX_HTT_HDR_STATUS_LEN 64
	struct htt_host_rx_desc_base {
	struct htt_host_fw_desc_base fw_desc;
	struct rx_attention attention;
	struct rx_frag_info frag_info;
	struct rx_mpdu_start mpdu_start;
	struct rx_msdu_start msdu_start;
	struct rx_msdu_end msdu_end;
	struct rx_mpdu_end mpdu_end;
	struct rx_ppdu_start ppdu_start;
	struct rx_ppdu_end ppdu_end;
	char rx_hdr_status[RX_HTT_HDR_STATUS_LEN];
	};

	#define RX_STD_DESC_ATTN_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, attention))
	#define RX_STD_DESC_FRAG_INFO_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, frag_info))
	#define RX_STD_DESC_MPDU_START_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, mpdu_start))
	#define RX_STD_DESC_MSDU_START_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, msdu_start))
	#define RX_STD_DESC_MSDU_END_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, msdu_end))
	#define RX_STD_DESC_MPDU_END_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, mpdu_end))
	#define RX_STD_DESC_PPDU_START_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, ppdu_start))
	#define RX_STD_DESC_PPDU_END_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, ppdu_end))
	#define RX_STD_DESC_HDR_STATUS_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, rx_hdr_status))

	#define RX_STD_DESC_FW_MSDU_OFFSET \
	(offsetof(struct htt_host_rx_desc_base, fw_desc))

	#define RX_STD_DESC_SIZE (sizeof(struct htt_host_rx_desc_base))

	#define RX_DESC_ATTN_OFFSET32 (RX_STD_DESC_ATTN_OFFSET >> 2)
	#define RX_DESC_FRAG_INFO_OFFSET32 (RX_STD_DESC_FRAG_INFO_OFFSET >> 2)
	#define RX_DESC_MPDU_START_OFFSET32 (RX_STD_DESC_MPDU_START_OFFSET >> 2)
	#define RX_DESC_MSDU_START_OFFSET32 (RX_STD_DESC_MSDU_START_OFFSET >> 2)
	#define RX_DESC_MSDU_END_OFFSET32 (RX_STD_DESC_MSDU_END_OFFSET >> 2)
	#define RX_DESC_MPDU_END_OFFSET32 (RX_STD_DESC_MPDU_END_OFFSET >> 2)
	#define RX_DESC_PPDU_START_OFFSET32 (RX_STD_DESC_PPDU_START_OFFSET >> 2)
	#define RX_DESC_PPDU_END_OFFSET32 (RX_STD_DESC_PPDU_END_OFFSET >> 2)
	#define RX_DESC_HDR_STATUS_OFFSET32 (RX_STD_DESC_HDR_STATUS_OFFSET >> 2)

	#define RX_STD_DESC_SIZE_DWORD (RX_STD_DESC_SIZE >> 2)

	/*
	* Make sure there is a minimum headroom provided in the rx netbufs
	* for use by the OS shim and OS and rx data consumers.
	*/
	#define HTT_RX_BUF_OS_MIN_HEADROOM 32
	#define HTT_RX_STD_DESC_RESERVATION \
	((HTT_RX_BUF_OS_MIN_HEADROOM > RX_STD_DESC_SIZE) ? \
	HTT_RX_BUF_OS_MIN_HEADROOM : RX_STD_DESC_SIZE)
	#define HTT_RX_DESC_RESERVATION32 \
	(HTT_RX_STD_DESC_RESERVATION >> 2)

	#define HTT_RX_DESC_ALIGN_MASK 7 /* 8-byte alignment */
	static inline struct htt_host_rx_desc_base *htt_rx_desc(cdf_nbuf_t msdu)
	{
	return (struct htt_host_rx_desc_base *)
	(((size_t) (cdf_nbuf_head(msdu) + HTT_RX_DESC_ALIGN_MASK)) &
	~HTT_RX_DESC_ALIGN_MASK);
	}

	#if defined(FEATURE_LRO)
	/**
	* htt_print_rx_desc_lro() - print LRO information in the rx
	* descriptor
	* @rx_desc: HTT rx descriptor
	*
	* Prints the LRO related fields in the HTT rx descriptor
	*
	* Return: none
	*/
	static inline void htt_print_rx_desc_lro(struct htt_host_rx_desc_base *rx_desc)
	{
	cdf_print
	("----------------------RX DESC LRO----------------------\n");
	cdf_print("msdu_end.lro_eligible:0x%x\n",
	rx_desc->msdu_end.lro_eligible);
	cdf_print("msdu_start.tcp_only_ack:0x%x\n",
	rx_desc->msdu_start.tcp_only_ack);
	cdf_print("msdu_end.tcp_udp_chksum:0x%x\n",
	rx_desc->msdu_end.tcp_udp_chksum);
	cdf_print("msdu_end.tcp_seq_number:0x%x\n",
	rx_desc->msdu_end.tcp_seq_number);
	cdf_print("msdu_end.tcp_ack_number:0x%x\n",
	rx_desc->msdu_end.tcp_ack_number);
	cdf_print("msdu_start.tcp_proto:0x%x\n",
	rx_desc->msdu_start.tcp_proto);
	cdf_print("msdu_start.ipv6_proto:0x%x\n",
	rx_desc->msdu_start.ipv6_proto);
	cdf_print("msdu_start.ipv4_proto:0x%x\n",
	rx_desc->msdu_start.ipv4_proto);
	cdf_print("msdu_start.l3_offset:0x%x\n",
	rx_desc->msdu_start.l3_offset);
	cdf_print("msdu_start.l4_offset:0x%x\n",
	rx_desc->msdu_start.l4_offset);
	cdf_print("msdu_start.flow_id_toeplitz:0x%x\n",
	rx_desc->msdu_start.flow_id_toeplitz);
	cdf_print
	("---------------------------------------------------------\n");
	}

	/**
	* htt_print_rx_desc_lro() - extract LRO information from the rx
	* descriptor
	* @msdu: network buffer
	* @rx_desc: HTT rx descriptor
	*
	* Extracts the LRO related fields from the HTT rx descriptor
	* and stores them in the network buffer's control block
	*
	* Return: none
	*/
	static inline void htt_rx_extract_lro_info(cdf_nbuf_t msdu,
	struct htt_host_rx_desc_base *rx_desc)
	{
	NBUF_LRO_ELIGIBLE(msdu) = rx_desc->msdu_end.lro_eligible;
	if (rx_desc->msdu_end.lro_eligible) {
	NBUF_TCP_PURE_ACK(msdu) = rx_desc->msdu_start.tcp_only_ack;
	NBUF_TCP_CHKSUM(msdu) = rx_desc->msdu_end.tcp_udp_chksum;
	NBUF_TCP_SEQ_NUM(msdu) = rx_desc->msdu_end.tcp_seq_number;
	NBUF_TCP_ACK_NUM(msdu) = rx_desc->msdu_end.tcp_ack_number;
	NBUF_TCP_WIN(msdu) = rx_desc->msdu_end.window_size;
	NBUF_TCP_PROTO(msdu) = rx_desc->msdu_start.tcp_proto;
	NBUF_IPV6_PROTO(msdu) = rx_desc->msdu_start.ipv6_proto;
	NBUF_IP_OFFSET(msdu) = rx_desc->msdu_start.l3_offset;
	NBUF_TCP_OFFSET(msdu) = rx_desc->msdu_start.l4_offset;
	NBUF_FLOW_ID_TOEPLITZ(msdu) =
	rx_desc->msdu_start.flow_id_toeplitz;
	}
	}
	#else
	static inline void htt_print_rx_desc_lro(struct htt_host_rx_desc_base *rx_desc)
	{}
	static inline void htt_rx_extract_lro_info(cdf_nbuf_t msdu,
	struct htt_host_rx_desc_base *rx_desc) {}
	#endif /* FEATURE_LRO */

	static inline void htt_print_rx_desc(struct htt_host_rx_desc_base *rx_desc)
	{
	cdf_print
	("----------------------RX DESC----------------------------\n");
	cdf_print("attention: %#010x\n",
	(unsigned int)((uint32_t ) &rx_desc->attention));
	cdf_print("frag_info: %#010x\n",
	(unsigned int)((uint32_t ) &rx_desc->frag_info));
	cdf_print("mpdu_start: %#010x %#010x %#010x\n",
	(unsigned int)(((uint32_t *) &rx_desc->mpdu_start)[0]),
	(unsigned int)(((uint32_t *) &rx_desc->mpdu_start)[1]),
	(unsigned int)(((uint32_t *) &rx_desc->mpdu_start)[2]));
	cdf_print("msdu_start: %#010x %#010x %#010x\n",
	(unsigned int)(((uint32_t *) &rx_desc->msdu_start)[0]),
	(unsigned int)(((uint32_t *) &rx_desc->msdu_start)[1]),
	(unsigned int)(((uint32_t *) &rx_desc->msdu_start)[2]));
	cdf_print("msdu_end: %#010x %#010x %#010x %#010x %#010x\n",
	(unsigned int)(((uint32_t *) &rx_desc->msdu_end)[0]),
	(unsigned int)(((uint32_t *) &rx_desc->msdu_end)[1]),
	(unsigned int)(((uint32_t *) &rx_desc->msdu_end)[2]),
	(unsigned int)(((uint32_t *) &rx_desc->msdu_end)[3]),
	(unsigned int)(((uint32_t *) &rx_desc->msdu_end)[4]));
	cdf_print("mpdu_end: %#010x\n",
	(unsigned int)((uint32_t ) &rx_desc->mpdu_end));
	cdf_print("ppdu_start: " "%#010x %#010x %#010x %#010x %#010x\n"
	"%#010x %#010x %#010x %#010x %#010x\n",
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[0]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[1]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[2]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[3]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[4]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[5]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[6]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[7]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[8]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_start)[9]));
	cdf_print("ppdu_end:" "%#010x %#010x %#010x %#010x %#010x\n"
	"%#010x %#010x %#010x %#010x %#010x\n"
	"%#010x,%#010x %#010x %#010x %#010x\n"
	"%#010x %#010x %#010x %#010x %#010x\n" "%#010x %#010x\n",
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[0]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[1]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[2]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[3]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[4]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[5]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[6]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[7]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[8]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[9]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[10]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[11]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[12]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[13]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[14]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[15]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[16]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[17]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[18]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[19]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[20]),
	(unsigned int)(((uint32_t *) &rx_desc->ppdu_end)[21]));
	cdf_print
	("---------------------------------------------------------\n");
	}

	#ifndef HTT_ASSERT_LEVEL
	#define HTT_ASSERT_LEVEL 3
	#endif

	#define HTT_ASSERT_ALWAYS(condition) cdf_assert_always((condition))

	#define HTT_ASSERT0(condition) cdf_assert((condition))
	#if HTT_ASSERT_LEVEL > 0
	#define HTT_ASSERT1(condition) cdf_assert((condition))
	#else
	#define HTT_ASSERT1(condition)
	#endif

	#if HTT_ASSERT_LEVEL > 1
	#define HTT_ASSERT2(condition) cdf_assert((condition))
	#else
	#define HTT_ASSERT2(condition)
	#endif

	#if HTT_ASSERT_LEVEL > 2
	#define HTT_ASSERT3(condition) cdf_assert((condition))
	#else
	#define HTT_ASSERT3(condition)
	#endif

	#define HTT_MAC_ADDR_LEN 6

	/*
	* HTT_MAX_SEND_QUEUE_DEPTH -
	* How many packets HTC should allow to accumulate in a send queue
	* before calling the EpSendFull callback to see whether to retain
	* or drop packets.
	* This is not relevant for LL, where tx descriptors should be immediately
	* downloaded to the target.
	* This is not very relevant for HL either, since it is anticipated that
	* the HL tx download scheduler will not work this far in advance - rather,
	* it will make its decisions just-in-time, so it can be responsive to
	* changing conditions.
	* Hence, this queue depth threshold spec is mostly just a formality.
	*/
	#define HTT_MAX_SEND_QUEUE_DEPTH 64

	#define IS_PWR2(value) (((value) ^ ((value)-1)) == ((value) << 1) - 1)

	/* FIX THIS
	* Should be: sizeof(struct htt_host_rx_desc) + max rx MSDU size,
	* rounded up to a cache line size.
	*/
	#define HTT_RX_BUF_SIZE 1920
	/*
	* DMA_MAP expects the buffer to be an integral number of cache lines.
	* Rather than checking the actual cache line size, this code makes a
	* conservative estimate of what the cache line size could be.
	*/
	#define HTT_LOG2_MAX_CACHE_LINE_SIZE 7 /* 2^7 = 128 */
	#define HTT_MAX_CACHE_LINE_SIZE_MASK ((1 << HTT_LOG2_MAX_CACHE_LINE_SIZE) - 1)

	#ifdef BIG_ENDIAN_HOST
	/*
	* big-endian: bytes within a 4-byte "word" are swapped:
	* pre-swap post-swap
	* index index
	* 0 3
	* 1 2
	* 2 1
	* 3 0
	* 4 7
	* 5 6
	* etc.
	* To compute the post-swap index from the pre-swap index, compute
	* the byte offset for the start of the word (index & ~0x3) and add
	* the swapped byte offset within the word (3 - (index & 0x3)).
	*/
	#define HTT_ENDIAN_BYTE_IDX_SWAP(idx) (((idx) & ~0x3) + (3 - ((idx) & 0x3)))
	#else
	/* little-endian: no adjustment needed */
	#define HTT_ENDIAN_BYTE_IDX_SWAP(idx) idx
	#endif

	#define HTT_TX_MUTEX_INIT(_mutex) \
	cdf_spinlock_init(_mutex)

	#define HTT_TX_MUTEX_ACQUIRE(_mutex) \
	cdf_spin_lock_bh(_mutex)

	#define HTT_TX_MUTEX_RELEASE(_mutex) \
	cdf_spin_unlock_bh(_mutex)

	#define HTT_TX_MUTEX_DESTROY(_mutex) \
	cdf_spinlock_destroy(_mutex)

	#define HTT_TX_DESC_PADDR(_pdev, _tx_desc_vaddr) \
	((_pdev)->tx_descs.pool_paddr + (uint32_t) \
	((char *)(_tx_desc_vaddr) - \
	(char *)((_pdev)->tx_descs.pool_vaddr)))

	#ifdef ATH_11AC_TXCOMPACT

	#define HTT_TX_NBUF_QUEUE_MUTEX_INIT(_pdev) \
	cdf_spinlock_init(&_pdev->txnbufq_mutex)

	#define HTT_TX_NBUF_QUEUE_MUTEX_DESTROY(_pdev) \
	HTT_TX_MUTEX_DESTROY(&_pdev->txnbufq_mutex)

	#define HTT_TX_NBUF_QUEUE_REMOVE(_pdev, _msdu) do { \
	HTT_TX_MUTEX_ACQUIRE(&_pdev->txnbufq_mutex); \
	_msdu = cdf_nbuf_queue_remove(&_pdev->txnbufq);\
	HTT_TX_MUTEX_RELEASE(&_pdev->txnbufq_mutex); \
	} while (0)

	#define HTT_TX_NBUF_QUEUE_ADD(_pdev, _msdu) do { \
	HTT_TX_MUTEX_ACQUIRE(&_pdev->txnbufq_mutex); \
	cdf_nbuf_queue_add(&_pdev->txnbufq, _msdu); \
	HTT_TX_MUTEX_RELEASE(&_pdev->txnbufq_mutex); \
	} while (0)

	#define HTT_TX_NBUF_QUEUE_INSERT_HEAD(_pdev, _msdu) do { \
	HTT_TX_MUTEX_ACQUIRE(&_pdev->txnbufq_mutex); \
	cdf_nbuf_queue_insert_head(&_pdev->txnbufq, _msdu);\
	HTT_TX_MUTEX_RELEASE(&_pdev->txnbufq_mutex); \
	} while (0)
	#else

	#define HTT_TX_NBUF_QUEUE_MUTEX_INIT(_pdev)
	#define HTT_TX_NBUF_QUEUE_REMOVE(_pdev, _msdu)
	#define HTT_TX_NBUF_QUEUE_ADD(_pdev, _msdu)
	#define HTT_TX_NBUF_QUEUE_INSERT_HEAD(_pdev, _msdu)
	#define HTT_TX_NBUF_QUEUE_MUTEX_DESTROY(_pdev)

	#endif

	#ifdef ATH_11AC_TXCOMPACT
	#define HTT_TX_SCHED htt_tx_sched
	#else
	#define HTT_TX_SCHED(pdev) /* no-op */
	#endif

	int htt_tx_attach(struct htt_pdev_t *pdev, int desc_pool_elems);

	void htt_tx_detach(struct htt_pdev_t *pdev);

	int htt_rx_attach(struct htt_pdev_t *pdev);

	void htt_rx_detach(struct htt_pdev_t *pdev);

	int htt_htc_attach(struct htt_pdev_t *pdev);

	void htt_t2h_msg_handler(void context, HTC_PACKET pkt);

	void htt_h2t_send_complete(void context, HTC_PACKET pkt);

	A_STATUS htt_h2t_ver_req_msg(struct htt_pdev_t *pdev);

	#if defined(HELIUMPLUS_PADDR64)
	A_STATUS
	htt_h2t_frag_desc_bank_cfg_msg(struct htt_pdev_t *pdev);
	#endif /* defined(HELIUMPLUS_PADDR64) */

	extern A_STATUS htt_h2t_rx_ring_cfg_msg_ll(struct htt_pdev_t *pdev);
	extern A_STATUS (htt_h2t_rx_ring_cfg_msg)(struct htt_pdev_t pdev);

	HTC_SEND_FULL_ACTION htt_h2t_full(void context, HTC_PACKET pkt);

	struct htt_htc_pkt htt_htc_pkt_alloc(struct htt_pdev_t pdev);

	void htt_htc_pkt_free(struct htt_pdev_t pdev, struct htt_htc_pkt pkt);

	void htt_htc_pkt_pool_free(struct htt_pdev_t *pdev);

	#ifdef ATH_11AC_TXCOMPACT
	void
	htt_htc_misc_pkt_list_add(struct htt_pdev_t pdev, struct htt_htc_pkt pkt);

	void htt_htc_misc_pkt_pool_free(struct htt_pdev_t *pdev);
	#endif

	void htt_htc_disable_aspm(void);

	int
	htt_rx_hash_list_insert(struct htt_pdev_t *pdev, uint32_t paddr,
	cdf_nbuf_t netbuf);

	cdf_nbuf_t htt_rx_hash_list_lookup(struct htt_pdev_t *pdev, uint32_t paddr);

	#ifdef IPA_OFFLOAD
	int
	htt_tx_ipa_uc_attach(struct htt_pdev_t *pdev,
	unsigned int uc_tx_buf_sz,
	unsigned int uc_tx_buf_cnt,
	unsigned int uc_tx_partition_base);

	int
	htt_rx_ipa_uc_attach(struct htt_pdev_t *pdev, unsigned int rx_ind_ring_size);

	int htt_tx_ipa_uc_detach(struct htt_pdev_t *pdev);

	int htt_rx_ipa_uc_detach(struct htt_pdev_t *pdev);
	#else
	static inline int
	htt_tx_ipa_uc_attach(struct htt_pdev_t *pdev,
	unsigned int uc_tx_buf_sz,
	unsigned int uc_tx_buf_cnt,
	unsigned int uc_tx_partition_base)
	{
	return 0;
	}

	static inline int
	htt_rx_ipa_uc_attach(struct htt_pdev_t *pdev, unsigned int rx_ind_ring_size)
	{
	return 0;
	}

	static inline int htt_tx_ipa_uc_detach(struct htt_pdev_t *pdev)
	{
	return 0;
	}

	static inline int htt_rx_ipa_uc_detach(struct htt_pdev_t *pdev)
	{
	return 0;
	}
	#endif /* IPA_OFFLOAD */
	#endif /* _HTT_INTERNAL__H_ */