cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/ath/ath10k/htt.c

/*
 * Copyright (c) 2005-2011 Atheros Communications Inc.
 * Copyright (c) 2011-2013 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.
 */

#include <linux/slab.h>
#include <linux/if_ether.h>

#include "htt.h"
#include "core.h"
#include "debug.h"


static const enum htt_t2h_msg_type htt_main_t2h_msg_types[] = {
	[HTT_MAIN_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
	[HTT_MAIN_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
	[HTT_MAIN_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
	[HTT_MAIN_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
	[HTT_MAIN_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
	[HTT_MAIN_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
	[HTT_MAIN_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
	[HTT_MAIN_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
	[HTT_MAIN_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
	[HTT_MAIN_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
	[HTT_MAIN_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
	[HTT_MAIN_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
	[HTT_MAIN_T2H_MSG_TYPE_TX_INSPECT_IND] =
		HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
	[HTT_MAIN_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
		HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
	[HTT_MAIN_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
		HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
	[HTT_MAIN_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
	[HTT_MAIN_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
		HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
	[HTT_MAIN_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
};


static const enum htt_t2h_msg_type htt_10x_t2h_msg_types[] = {
	[HTT_10X_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
	[HTT_10X_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
	[HTT_10X_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
	[HTT_10X_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
	[HTT_10X_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
	[HTT_10X_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
	[HTT_10X_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
	[HTT_10X_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
	[HTT_10X_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
	[HTT_10X_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
	[HTT_10X_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
	[HTT_10X_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
	[HTT_10X_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
	[HTT_10X_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
	[HTT_10X_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
	[HTT_10X_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
	[HTT_10X_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
	[HTT_10X_T2H_MSG_TYPE_STATS_NOUPLOAD] = HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
	[HTT_10X_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
		HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
};


static const enum htt_t2h_msg_type htt_tlv_t2h_msg_types[] = {
	[HTT_TLV_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
	[HTT_TLV_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
	[HTT_TLV_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
	[HTT_TLV_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
	[HTT_TLV_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
	[HTT_TLV_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
	[HTT_TLV_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
	[HTT_TLV_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
	[HTT_TLV_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
	[HTT_TLV_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
	[HTT_TLV_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
	[HTT_TLV_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
	[HTT_TLV_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
	[HTT_TLV_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
	[HTT_TLV_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
		HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
	[HTT_TLV_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
		HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
	[HTT_TLV_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
	[HTT_TLV_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
		HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
	[HTT_TLV_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND] =
		HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND,
	[HTT_TLV_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE] =
		HTT_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE,
	[HTT_TLV_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
	[HTT_TLV_T2H_MSG_TYPE_RX_OFLD_PKT_ERR] =
		HTT_T2H_MSG_TYPE_RX_OFLD_PKT_ERR,
	[HTT_TLV_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
};


static const enum htt_t2h_msg_type htt_10_4_t2h_msg_types[] = {
	[HTT_10_4_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
	[HTT_10_4_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
	[HTT_10_4_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
	[HTT_10_4_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
	[HTT_10_4_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
	[HTT_10_4_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
	[HTT_10_4_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
	[HTT_10_4_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
	[HTT_10_4_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
	[HTT_10_4_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
	[HTT_10_4_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
	[HTT_10_4_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
	[HTT_10_4_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
	[HTT_10_4_T2H_MSG_TYPE_TX_INSPECT_IND] =
				HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
	[HTT_10_4_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
				HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
	[HTT_10_4_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
	[HTT_10_4_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
				HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
	[HTT_10_4_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
	[HTT_10_4_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
				HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
	[HTT_10_4_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
	[HTT_10_4_T2H_MSG_TYPE_EN_STATS] = HTT_T2H_MSG_TYPE_EN_STATS,
	[HTT_10_4_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
	[HTT_10_4_T2H_MSG_TYPE_TX_FETCH_IND] =
				HTT_T2H_MSG_TYPE_TX_FETCH_IND,
	[HTT_10_4_T2H_MSG_TYPE_TX_FETCH_CONFIRM] =
				HTT_T2H_MSG_TYPE_TX_FETCH_CONFIRM,
	[HTT_10_4_T2H_MSG_TYPE_STATS_NOUPLOAD] =
				HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
	[HTT_10_4_T2H_MSG_TYPE_TX_MODE_SWITCH_IND] =
				HTT_T2H_MSG_TYPE_TX_MODE_SWITCH_IND,
	[HTT_10_4_T2H_MSG_TYPE_PEER_STATS] =
				HTT_T2H_MSG_TYPE_PEER_STATS,
};


int ath10k_htt_connect(struct ath10k_htt *htt) { struct ath10k_htc_svc_conn_req conn_req; struct ath10k_htc_svc_conn_resp conn_resp; int status; memset(&conn_req, 0, sizeof(conn_req)); memset(&conn_resp, 0, sizeof(conn_resp)); conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete; conn_req.ep_ops.ep_rx_complete = ath10k_htt_htc_t2h_msg_handler; /* connect to control service */ conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG; status = ath10k_htc_connect_service(&htt->ar->htc, &conn_req, &conn_resp); if (status) return status; htt->eid = conn_resp.eid; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Kalle Valo10397.17%125.00%
Michal Kazior21.89%250.00%
Rajkumar Manoharan10.94%125.00%
Total106100.00%4100.00%


int ath10k_htt_init(struct ath10k *ar) { struct ath10k_htt *htt = &ar->htt; htt->ar = ar; /* * Prefetch enough data to satisfy target * classification engine. * This is for LL chips. HL chips will probably * transfer all frame in the tx fragment. */ htt->prefetch_len = 36 + /* 802.11 + qos + ht */ 4 + /* 802.1q */ 8 + /* llc snap */ 2; /* ip4 dscp or ip6 priority */ switch (ar->running_fw->fw_file.htt_op_version) { case ATH10K_FW_HTT_OP_VERSION_10_4: ar->htt.t2h_msg_types = htt_10_4_t2h_msg_types; ar->htt.t2h_msg_types_max = HTT_10_4_T2H_NUM_MSGS; break; case ATH10K_FW_HTT_OP_VERSION_10_1: ar->htt.t2h_msg_types = htt_10x_t2h_msg_types; ar->htt.t2h_msg_types_max = HTT_10X_T2H_NUM_MSGS; break; case ATH10K_FW_HTT_OP_VERSION_TLV: ar->htt.t2h_msg_types = htt_tlv_t2h_msg_types; ar->htt.t2h_msg_types_max = HTT_TLV_T2H_NUM_MSGS; break; case ATH10K_FW_HTT_OP_VERSION_MAIN: ar->htt.t2h_msg_types = htt_main_t2h_msg_types; ar->htt.t2h_msg_types_max = HTT_MAIN_T2H_NUM_MSGS; break; case ATH10K_FW_HTT_OP_VERSION_MAX: case ATH10K_FW_HTT_OP_VERSION_UNSET: WARN_ON(1); return -EINVAL; } return 0; }

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PersonTokensPropCommitsCommitProp
Rajkumar Manoharan8052.29%114.29%
Kalle Valo4529.41%342.86%
Raja Mani2013.07%114.29%
Michal Kazior85.23%228.57%
Total153100.00%7100.00%

#define HTT_TARGET_VERSION_TIMEOUT_HZ (3 * HZ)
static int ath10k_htt_verify_version(struct ath10k_htt *htt) { struct ath10k *ar = htt->ar; ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt target version %d.%d\n", htt->target_version_major, htt->target_version_minor); if (htt->target_version_major != 2 && htt->target_version_major != 3) { ath10k_err(ar, "unsupported htt major version %d. supported versions are 2 and 3\n", htt->target_version_major); return -ENOTSUPP; } return 0; }

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Kalle Valo4563.38%250.00%
Michal Kazior2636.62%250.00%
Total71100.00%4100.00%


int ath10k_htt_setup(struct ath10k_htt *htt) { struct ath10k *ar = htt->ar; int status; init_completion(&htt->target_version_received); status = ath10k_htt_h2t_ver_req_msg(htt); if (status) return status; status = wait_for_completion_timeout(&htt->target_version_received, HTT_TARGET_VERSION_TIMEOUT_HZ); if (status == 0) { ath10k_warn(ar, "htt version request timed out\n"); return -ETIMEDOUT; } status = ath10k_htt_verify_version(htt); if (status) { ath10k_warn(ar, "failed to verify htt version: %d\n", status); return status; } status = ath10k_htt_send_frag_desc_bank_cfg(htt); if (status) return status; status = ath10k_htt_send_rx_ring_cfg_ll(htt); if (status) { ath10k_warn(ar, "failed to setup rx ring: %d\n", status); return status; } status = ath10k_htt_h2t_aggr_cfg_msg(htt, htt->max_num_ampdu, htt->max_num_amsdu); if (status) { ath10k_warn(ar, "failed to setup amsdu/ampdu limit: %d\n", status); return status; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Kalle Valo8146.29%116.67%
David Liu6738.29%116.67%
Raja Mani148.00%116.67%
Michal Kazior126.86%233.33%
Nicholas Mc Guire10.57%116.67%
Total175100.00%6100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Rajkumar Manoharan46843.21%211.11%
Kalle Valo29126.87%527.78%
Raja Mani19518.01%211.11%
David Liu676.19%15.56%
Michal Kazior555.08%633.33%
Anilkumar Kolli60.55%15.56%
Nicholas Mc Guire10.09%15.56%
Total1083100.00%18100.00%
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