Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Bing Zhao | 676 | 68.70% | 1 | 5.00% |
Amitkumar Karwar | 101 | 10.26% | 6 | 30.00% |
Stone Piao | 47 | 4.78% | 1 | 5.00% |
Xinming Hu | 44 | 4.47% | 2 | 10.00% |
Zhaoyang Liu | 37 | 3.76% | 2 | 10.00% |
Yogesh Ashok Powar | 29 | 2.95% | 2 | 10.00% |
Avinash Patil | 26 | 2.64% | 2 | 10.00% |
Ujjal Roy | 15 | 1.52% | 1 | 5.00% |
Ganapathi Bhat | 8 | 0.81% | 2 | 10.00% |
Arnd Bergmann | 1 | 0.10% | 1 | 5.00% |
Total | 984 | 20 |
/* * NXP Wireless LAN device driver: station TX data handling * * Copyright 2011-2020 NXP * * This software file (the "File") is distributed by NXP * under the terms of the GNU General Public License Version 2, June 1991 * (the "License"). You may use, redistribute and/or modify this File in * accordance with the terms and conditions of the License, a copy of which * is available by writing to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. * * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE * ARE EXPRESSLY DISCLAIMED. The License provides additional details about * this warranty disclaimer. */ #include "decl.h" #include "ioctl.h" #include "util.h" #include "fw.h" #include "main.h" #include "wmm.h" /* * This function fills the TxPD for tx packets. * * The Tx buffer received by this function should already have the * header space allocated for TxPD. * * This function inserts the TxPD in between interface header and actual * data and adjusts the buffer pointers accordingly. * * The following TxPD fields are set by this function, as required - * - BSS number * - Tx packet length and offset * - Priority * - Packet delay * - Priority specific Tx control * - Flags */ void *mwifiex_process_sta_txpd(struct mwifiex_private *priv, struct sk_buff *skb) { struct mwifiex_adapter *adapter = priv->adapter; struct txpd *local_tx_pd; struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb); unsigned int pad; u16 pkt_type, pkt_offset; int hroom = adapter->intf_hdr_len; if (!skb->len) { mwifiex_dbg(adapter, ERROR, "Tx: bad packet length: %d\n", skb->len); tx_info->status_code = -1; return skb->data; } BUG_ON(skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN); pkt_type = mwifiex_is_skb_mgmt_frame(skb) ? PKT_TYPE_MGMT : 0; pad = ((uintptr_t)skb->data - (sizeof(*local_tx_pd) + hroom)) & (MWIFIEX_DMA_ALIGN_SZ - 1); skb_push(skb, sizeof(*local_tx_pd) + pad); local_tx_pd = (struct txpd *) skb->data; memset(local_tx_pd, 0, sizeof(struct txpd)); local_tx_pd->bss_num = priv->bss_num; local_tx_pd->bss_type = priv->bss_type; local_tx_pd->tx_pkt_length = cpu_to_le16((u16)(skb->len - (sizeof(struct txpd) + pad))); local_tx_pd->priority = (u8) skb->priority; local_tx_pd->pkt_delay_2ms = mwifiex_wmm_compute_drv_pkt_delay(priv, skb); if (tx_info->flags & MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS || tx_info->flags & MWIFIEX_BUF_FLAG_ACTION_TX_STATUS) { local_tx_pd->tx_token_id = tx_info->ack_frame_id; local_tx_pd->flags |= MWIFIEX_TXPD_FLAGS_REQ_TX_STATUS; } if (local_tx_pd->priority < ARRAY_SIZE(priv->wmm.user_pri_pkt_tx_ctrl)) /* * Set the priority specific tx_control field, setting of 0 will * cause the default value to be used later in this function */ local_tx_pd->tx_control = cpu_to_le32(priv->wmm.user_pri_pkt_tx_ctrl[local_tx_pd-> priority]); if (adapter->pps_uapsd_mode) { if (mwifiex_check_last_packet_indication(priv)) { adapter->tx_lock_flag = true; local_tx_pd->flags = MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET; } } if (tx_info->flags & MWIFIEX_BUF_FLAG_TDLS_PKT) local_tx_pd->flags |= MWIFIEX_TXPD_FLAGS_TDLS_PACKET; /* Offset of actual data */ pkt_offset = sizeof(struct txpd) + pad; if (pkt_type == PKT_TYPE_MGMT) { /* Set the packet type and add header for management frame */ local_tx_pd->tx_pkt_type = cpu_to_le16(pkt_type); pkt_offset += MWIFIEX_MGMT_FRAME_HEADER_SIZE; } local_tx_pd->tx_pkt_offset = cpu_to_le16(pkt_offset); /* make space for adapter->intf_hdr_len */ skb_push(skb, hroom); if (!local_tx_pd->tx_control) /* TxCtrl set by user or default */ local_tx_pd->tx_control = cpu_to_le32(priv->pkt_tx_ctrl); return skb->data; } /* * This function tells firmware to send a NULL data packet. * * The function creates a NULL data packet with TxPD and sends to the * firmware for transmission, with highest priority setting. */ int mwifiex_send_null_packet(struct mwifiex_private *priv, u8 flags) { struct mwifiex_adapter *adapter = priv->adapter; struct txpd *local_tx_pd; struct mwifiex_tx_param tx_param; /* sizeof(struct txpd) + Interface specific header */ #define NULL_PACKET_HDR 64 u32 data_len = NULL_PACKET_HDR; struct sk_buff *skb; int ret; struct mwifiex_txinfo *tx_info = NULL; if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags)) return -1; if (!priv->media_connected) return -1; if (adapter->data_sent) return -1; if (adapter->if_ops.is_port_ready && !adapter->if_ops.is_port_ready(priv)) return -1; skb = dev_alloc_skb(data_len); if (!skb) return -1; tx_info = MWIFIEX_SKB_TXCB(skb); memset(tx_info, 0, sizeof(*tx_info)); tx_info->bss_num = priv->bss_num; tx_info->bss_type = priv->bss_type; tx_info->pkt_len = data_len - (sizeof(struct txpd) + adapter->intf_hdr_len); skb_reserve(skb, sizeof(struct txpd) + adapter->intf_hdr_len); skb_push(skb, sizeof(struct txpd)); local_tx_pd = (struct txpd *) skb->data; local_tx_pd->tx_control = cpu_to_le32(priv->pkt_tx_ctrl); local_tx_pd->flags = flags; local_tx_pd->priority = WMM_HIGHEST_PRIORITY; local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd)); local_tx_pd->bss_num = priv->bss_num; local_tx_pd->bss_type = priv->bss_type; skb_push(skb, adapter->intf_hdr_len); if (adapter->iface_type == MWIFIEX_USB) { ret = adapter->if_ops.host_to_card(adapter, priv->usb_port, skb, NULL); } else { tx_param.next_pkt_len = 0; ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_DATA, skb, &tx_param); } switch (ret) { case -EBUSY: dev_kfree_skb_any(skb); mwifiex_dbg(adapter, ERROR, "%s: host_to_card failed: ret=%d\n", __func__, ret); adapter->dbg.num_tx_host_to_card_failure++; break; case -1: dev_kfree_skb_any(skb); mwifiex_dbg(adapter, ERROR, "%s: host_to_card failed: ret=%d\n", __func__, ret); adapter->dbg.num_tx_host_to_card_failure++; break; case 0: dev_kfree_skb_any(skb); mwifiex_dbg(adapter, DATA, "data: %s: host_to_card succeeded\n", __func__); adapter->tx_lock_flag = true; break; case -EINPROGRESS: adapter->tx_lock_flag = true; break; default: break; } return ret; } /* * This function checks if we need to send last packet indication. */ u8 mwifiex_check_last_packet_indication(struct mwifiex_private *priv) { struct mwifiex_adapter *adapter = priv->adapter; u8 ret = false; if (!adapter->sleep_period.period) return ret; if (mwifiex_wmm_lists_empty(adapter)) ret = true; if (ret && !adapter->cmd_sent && !adapter->curr_cmd && !is_command_pending(adapter)) { adapter->delay_null_pkt = false; ret = true; } else { ret = false; adapter->delay_null_pkt = true; } return ret; }
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