diff options
Diffstat (limited to 'drivers/staging/r8188eu/os_dep/xmit_linux.c')
| -rw-r--r-- | drivers/staging/r8188eu/os_dep/xmit_linux.c | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/drivers/staging/r8188eu/os_dep/xmit_linux.c b/drivers/staging/r8188eu/os_dep/xmit_linux.c deleted file mode 100644 index 088c294f2586..000000000000 --- a/drivers/staging/r8188eu/os_dep/xmit_linux.c +++ /dev/null @@ -1,247 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* Copyright(c) 2007 - 2012 Realtek Corporation. */ - -#define _XMIT_OSDEP_C_ - -#include "../include/osdep_service.h" -#include "../include/drv_types.h" -#include "../include/wifi.h" -#include "../include/mlme_osdep.h" -#include "../include/xmit_osdep.h" -#include "../include/osdep_intf.h" -#include "../include/usb_osintf.h" - -uint rtw_remainder_len(struct pkt_file *pfile) -{ - return pfile->buf_len - ((size_t)(pfile->cur_addr) - - (size_t)(pfile->buf_start)); -} - -void _rtw_open_pktfile(struct sk_buff *pktptr, struct pkt_file *pfile) -{ - - if (!pktptr) { - pr_err("8188eu: pktptr is NULL\n"); - return; - } - if (!pfile) { - pr_err("8188eu: pfile is NULL\n"); - return; - } - pfile->pkt = pktptr; - pfile->cur_addr = pktptr->data; - pfile->buf_start = pktptr->data; - pfile->pkt_len = pktptr->len; - pfile->buf_len = pktptr->len; - - pfile->cur_buffer = pfile->buf_start; - -} - -uint _rtw_pktfile_read(struct pkt_file *pfile, u8 *rmem, uint rlen) -{ - uint len = 0; - - len = rtw_remainder_len(pfile); - len = (rlen > len) ? len : rlen; - - if (rmem) - skb_copy_bits(pfile->pkt, pfile->buf_len - pfile->pkt_len, rmem, len); - - pfile->cur_addr += len; - pfile->pkt_len -= len; - - return len; -} - -int rtw_endofpktfile(struct pkt_file *pfile) -{ - - if (pfile->pkt_len == 0) { - - return true; - } - - return false; -} - -int rtw_os_xmit_resource_alloc(struct adapter *padapter, struct xmit_buf *pxmitbuf, u32 alloc_sz) -{ - int i; - - pxmitbuf->pallocated_buf = kzalloc(alloc_sz, GFP_KERNEL); - if (!pxmitbuf->pallocated_buf) - return _FAIL; - - pxmitbuf->pbuf = (u8 *)N_BYTE_ALIGMENT((size_t)(pxmitbuf->pallocated_buf), XMITBUF_ALIGN_SZ); - pxmitbuf->dma_transfer_addr = 0; - - for (i = 0; i < 8; i++) { - pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL); - if (!pxmitbuf->pxmit_urb[i]) { - DBG_88E("pxmitbuf->pxmit_urb[i]==NULL"); - return _FAIL; - } - } - return _SUCCESS; -} - -void rtw_os_xmit_resource_free(struct adapter *padapter, - struct xmit_buf *pxmitbuf, u32 free_sz) -{ - int i; - - for (i = 0; i < 8; i++) - usb_free_urb(pxmitbuf->pxmit_urb[i]); - - kfree(pxmitbuf->pallocated_buf); -} - -#define WMM_XMIT_THRESHOLD (NR_XMITFRAME * 2 / 5) - -void rtw_os_pkt_complete(struct adapter *padapter, struct sk_buff *pkt) -{ - u16 queue; - struct xmit_priv *pxmitpriv = &padapter->xmitpriv; - - queue = skb_get_queue_mapping(pkt); - if (padapter->registrypriv.wifi_spec) { - if (__netif_subqueue_stopped(padapter->pnetdev, queue) && - (pxmitpriv->hwxmits[queue].accnt < WMM_XMIT_THRESHOLD)) - netif_wake_subqueue(padapter->pnetdev, queue); - } else { - if (__netif_subqueue_stopped(padapter->pnetdev, queue)) - netif_wake_subqueue(padapter->pnetdev, queue); - } - - dev_kfree_skb_any(pkt); -} - -void rtw_os_xmit_complete(struct adapter *padapter, struct xmit_frame *pxframe) -{ - if (pxframe->pkt) - rtw_os_pkt_complete(padapter, pxframe->pkt); - pxframe->pkt = NULL; -} - -void rtw_os_xmit_schedule(struct adapter *padapter) -{ - struct xmit_priv *pxmitpriv; - - if (!padapter) - return; - - pxmitpriv = &padapter->xmitpriv; - - spin_lock_bh(&pxmitpriv->lock); - - if (rtw_txframes_pending(padapter)) - tasklet_hi_schedule(&pxmitpriv->xmit_tasklet); - - spin_unlock_bh(&pxmitpriv->lock); -} - -static void rtw_check_xmit_resource(struct adapter *padapter, struct sk_buff *pkt) -{ - struct xmit_priv *pxmitpriv = &padapter->xmitpriv; - u16 queue; - - queue = skb_get_queue_mapping(pkt); - if (padapter->registrypriv.wifi_spec) { - /* No free space for Tx, tx_worker is too slow */ - if (pxmitpriv->hwxmits[queue].accnt > WMM_XMIT_THRESHOLD) - netif_stop_subqueue(padapter->pnetdev, queue); - } else { - if (pxmitpriv->free_xmitframe_cnt <= 4) { - if (!netif_tx_queue_stopped(netdev_get_tx_queue(padapter->pnetdev, queue))) - netif_stop_subqueue(padapter->pnetdev, queue); - } - } -} - -static int rtw_mlcst2unicst(struct adapter *padapter, struct sk_buff *skb) -{ - struct sta_priv *pstapriv = &padapter->stapriv; - struct xmit_priv *pxmitpriv = &padapter->xmitpriv; - struct list_head *phead, *plist; - struct sk_buff *newskb; - struct sta_info *psta = NULL; - s32 res; - - spin_lock_bh(&pstapriv->asoc_list_lock); - phead = &pstapriv->asoc_list; - plist = phead->next; - - /* free sta asoc_queue */ - while (phead != plist) { - psta = container_of(plist, struct sta_info, asoc_list); - - plist = plist->next; - - /* avoid come from STA1 and send back STA1 */ - if (!memcmp(psta->hwaddr, &skb->data[6], 6)) - continue; - - newskb = skb_copy(skb, GFP_ATOMIC); - - if (newskb) { - memcpy(newskb->data, psta->hwaddr, 6); - res = rtw_xmit(padapter, &newskb); - if (res < 0) { - DBG_88E("%s()-%d: rtw_xmit() return error!\n", __func__, __LINE__); - pxmitpriv->tx_drop++; - dev_kfree_skb_any(newskb); - } else { - pxmitpriv->tx_pkts++; - } - } else { - DBG_88E("%s-%d: skb_copy() failed!\n", __func__, __LINE__); - pxmitpriv->tx_drop++; - - spin_unlock_bh(&pstapriv->asoc_list_lock); - return false; /* Caller shall tx this multicast frame via normal way. */ - } - } - - spin_unlock_bh(&pstapriv->asoc_list_lock); - dev_kfree_skb_any(skb); - return true; -} - -int rtw_xmit_entry(struct sk_buff *pkt, struct net_device *pnetdev) -{ - struct adapter *padapter = (struct adapter *)rtw_netdev_priv(pnetdev); - struct xmit_priv *pxmitpriv = &padapter->xmitpriv; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - s32 res = 0; - - if (!rtw_if_up(padapter)) - goto drop_packet; - - rtw_check_xmit_resource(padapter, pkt); - - if (!rtw_mc2u_disable && check_fwstate(pmlmepriv, WIFI_AP_STATE) && - (IP_MCAST_MAC(pkt->data) || ICMPV6_MCAST_MAC(pkt->data)) && - (padapter->registrypriv.wifi_spec == 0)) { - if (pxmitpriv->free_xmitframe_cnt > (NR_XMITFRAME / 4)) { - res = rtw_mlcst2unicst(padapter, pkt); - if (res) - goto exit; - } - } - - res = rtw_xmit(padapter, &pkt); - if (res < 0) - goto drop_packet; - - pxmitpriv->tx_pkts++; - goto exit; - -drop_packet: - pxmitpriv->tx_drop++; - dev_kfree_skb_any(pkt); - -exit: - - return 0; -} |