555 lines
14 KiB
C
555 lines
14 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2007 - 2017 Realtek Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*****************************************************************************/
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#define _XMIT_OSDEP_C_
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#include <drv_types.h>
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#define DBG_DUMP_OS_QUEUE_CTL 0
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uint rtw_remainder_len(struct pkt_file *pfile)
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{
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return pfile->buf_len - ((SIZE_PTR)(pfile->cur_addr) - (SIZE_PTR)(pfile->buf_start));
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}
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void _rtw_open_pktfile(_pkt *pktptr, struct pkt_file *pfile)
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{
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pfile->pkt = pktptr;
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pfile->cur_addr = pfile->buf_start = pktptr->data;
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pfile->pkt_len = pfile->buf_len = pktptr->len;
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pfile->cur_buffer = pfile->buf_start ;
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}
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uint _rtw_pktfile_read(struct pkt_file *pfile, u8 *rmem, uint rlen)
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{
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uint len = 0;
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len = rtw_remainder_len(pfile);
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len = (rlen > len) ? len : rlen;
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if (rmem)
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skb_copy_bits(pfile->pkt, pfile->buf_len - pfile->pkt_len, rmem, len);
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pfile->cur_addr += len;
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pfile->pkt_len -= len;
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return len;
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}
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sint rtw_endofpktfile(struct pkt_file *pfile)
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{
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if (pfile->pkt_len == 0) {
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return _TRUE;
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}
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return _FALSE;
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}
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void rtw_set_tx_chksum_offload(_pkt *pkt, struct pkt_attrib *pattrib)
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{
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#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
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struct sk_buff *skb = (struct sk_buff *)pkt;
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struct iphdr *iph = NULL;
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struct ipv6hdr *i6ph = NULL;
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struct udphdr *uh = NULL;
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struct tcphdr *th = NULL;
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u8 protocol = 0xFF;
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if (skb->protocol == htons(ETH_P_IP)) {
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iph = (struct iphdr *)skb_network_header(skb);
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protocol = iph->protocol;
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} else if (skb->protocol == htons(ETH_P_IPV6)) {
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i6ph = (struct ipv6hdr *)skb_network_header(skb);
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protocol = i6ph->nexthdr;
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} else
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{}
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/* HW unable to compute CSUM if header & payload was be encrypted by SW(cause TXDMA error) */
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if (pattrib->bswenc == _TRUE) {
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if (skb->ip_summed == CHECKSUM_PARTIAL)
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skb_checksum_help(skb);
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return;
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}
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/* For HW rule, clear ipv4_csum & UDP/TCP_csum if it is UDP/TCP packet */
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switch (protocol) {
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case IPPROTO_UDP:
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uh = (struct udphdr *)skb_transport_header(skb);
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uh->check = 0;
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if (iph)
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iph->check = 0;
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pattrib->hw_csum = _TRUE;
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break;
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case IPPROTO_TCP:
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th = (struct tcphdr *)skb_transport_header(skb);
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th->check = 0;
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if (iph)
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iph->check = 0;
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pattrib->hw_csum = _TRUE;
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break;
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default:
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break;
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}
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#endif
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}
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int rtw_os_xmit_resource_alloc(_adapter *padapter, struct xmit_buf *pxmitbuf, u32 alloc_sz, u8 flag)
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{
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if (alloc_sz > 0) {
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#ifdef CONFIG_USE_USB_BUFFER_ALLOC_TX
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struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
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struct usb_device *pusbd = pdvobjpriv->pusbdev;
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pxmitbuf->pallocated_buf = rtw_usb_buffer_alloc(pusbd, (size_t)alloc_sz, &pxmitbuf->dma_transfer_addr);
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pxmitbuf->pbuf = pxmitbuf->pallocated_buf;
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if (pxmitbuf->pallocated_buf == NULL)
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return _FAIL;
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#else /* CONFIG_USE_USB_BUFFER_ALLOC_TX */
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pxmitbuf->pallocated_buf = rtw_zmalloc(alloc_sz);
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if (pxmitbuf->pallocated_buf == NULL)
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return _FAIL;
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pxmitbuf->pbuf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxmitbuf->pallocated_buf), XMITBUF_ALIGN_SZ);
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#endif /* CONFIG_USE_USB_BUFFER_ALLOC_TX */
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}
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if (flag) {
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#ifdef CONFIG_USB_HCI
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int i;
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for (i = 0; i < 8; i++) {
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pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
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if (pxmitbuf->pxmit_urb[i] == NULL) {
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RTW_INFO("pxmitbuf->pxmit_urb[i]==NULL");
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return _FAIL;
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}
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}
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#endif
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}
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return _SUCCESS;
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}
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void rtw_os_xmit_resource_free(_adapter *padapter, struct xmit_buf *pxmitbuf, u32 free_sz, u8 flag)
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{
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if (flag) {
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#ifdef CONFIG_USB_HCI
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int i;
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for (i = 0; i < 8; i++) {
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if (pxmitbuf->pxmit_urb[i]) {
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/* usb_kill_urb(pxmitbuf->pxmit_urb[i]); */
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usb_free_urb(pxmitbuf->pxmit_urb[i]);
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}
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}
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#endif
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}
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if (free_sz > 0) {
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#ifdef CONFIG_USE_USB_BUFFER_ALLOC_TX
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struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
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struct usb_device *pusbd = pdvobjpriv->pusbdev;
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rtw_usb_buffer_free(pusbd, (size_t)free_sz, pxmitbuf->pallocated_buf, pxmitbuf->dma_transfer_addr);
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pxmitbuf->pallocated_buf = NULL;
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pxmitbuf->dma_transfer_addr = 0;
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#else /* CONFIG_USE_USB_BUFFER_ALLOC_TX */
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if (pxmitbuf->pallocated_buf)
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rtw_mfree(pxmitbuf->pallocated_buf, free_sz);
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#endif /* CONFIG_USE_USB_BUFFER_ALLOC_TX */
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}
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}
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void dump_os_queue(void *sel, _adapter *padapter)
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{
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struct net_device *ndev = padapter->pnetdev;
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
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int i;
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for (i = 0; i < 4; i++) {
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RTW_PRINT_SEL(sel, "os_queue[%d]:%s\n"
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, i, __netif_subqueue_stopped(ndev, i) ? "stopped" : "waked");
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}
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#else
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RTW_PRINT_SEL(sel, "os_queue:%s\n"
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, netif_queue_stopped(ndev) ? "stopped" : "waked");
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#endif
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}
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#define WMM_XMIT_THRESHOLD (NR_XMITFRAME*2/5)
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static inline bool rtw_os_need_wake_queue(_adapter *padapter, u16 os_qid)
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{
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
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struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
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if (padapter->registrypriv.wifi_spec) {
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if (pxmitpriv->hwxmits[os_qid].accnt < WMM_XMIT_THRESHOLD)
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return _TRUE;
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#ifdef DBG_CONFIG_ERROR_DETECT
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#ifdef DBG_CONFIG_ERROR_RESET
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} else if (rtw_hal_sreset_inprogress(padapter) == _TRUE) {
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return _FALSE;
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#endif/* #ifdef DBG_CONFIG_ERROR_RESET */
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#endif/* #ifdef DBG_CONFIG_ERROR_DETECT */
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} else {
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#ifdef CONFIG_MCC_MODE
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if (MCC_EN(padapter)) {
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if (rtw_hal_check_mcc_status(padapter, MCC_STATUS_DOING_MCC)
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&& MCC_STOP(padapter))
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return _FALSE;
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}
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#endif /* CONFIG_MCC_MODE */
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return _TRUE;
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}
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return _FALSE;
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#else
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#ifdef CONFIG_MCC_MODE
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if (MCC_EN(padapter)) {
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if (rtw_hal_check_mcc_status(padapter, MCC_STATUS_DOING_MCC)
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&& MCC_STOP(padapter))
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return _FALSE;
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}
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#endif /* CONFIG_MCC_MODE */
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return _TRUE;
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#endif
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}
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static inline bool rtw_os_need_stop_queue(_adapter *padapter, u16 os_qid)
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{
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struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
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if (padapter->registrypriv.wifi_spec) {
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/* No free space for Tx, tx_worker is too slow */
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if (pxmitpriv->hwxmits[os_qid].accnt > WMM_XMIT_THRESHOLD)
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return _TRUE;
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} else {
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if (pxmitpriv->free_xmitframe_cnt <= 4)
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return _TRUE;
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}
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#else
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if (pxmitpriv->free_xmitframe_cnt <= 4)
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return _TRUE;
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#endif
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return _FALSE;
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}
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void rtw_os_pkt_complete(_adapter *padapter, _pkt *pkt)
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{
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rtw_skb_free(pkt);
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}
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void rtw_os_xmit_complete(_adapter *padapter, struct xmit_frame *pxframe)
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{
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if (pxframe->pkt)
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rtw_os_pkt_complete(padapter, pxframe->pkt);
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pxframe->pkt = NULL;
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}
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void rtw_os_xmit_schedule(_adapter *padapter)
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{
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#if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
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_adapter *pri_adapter;
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if (!padapter)
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return;
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pri_adapter = GET_PRIMARY_ADAPTER(padapter);
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if (_rtw_queue_empty(&padapter->xmitpriv.pending_xmitbuf_queue) == _FALSE)
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_rtw_up_sema(&pri_adapter->xmitpriv.xmit_sema);
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#else
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_irqL irqL;
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struct xmit_priv *pxmitpriv;
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if (!padapter)
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return;
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pxmitpriv = &padapter->xmitpriv;
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_enter_critical_bh(&pxmitpriv->lock, &irqL);
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if (rtw_txframes_pending(padapter))
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tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
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_exit_critical_bh(&pxmitpriv->lock, &irqL);
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#if defined(CONFIG_PCI_HCI) && defined(CONFIG_XMIT_THREAD_MODE)
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if (_rtw_queue_empty(&padapter->xmitpriv.pending_xmitbuf_queue) == _FALSE)
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_rtw_up_sema(&padapter->xmitpriv.xmit_sema);
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#endif
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#endif
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}
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void rtw_os_check_wakup_queue(_adapter *adapter, u16 os_qid)
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{
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
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if (rtw_os_need_wake_queue(adapter, os_qid)) {
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if (DBG_DUMP_OS_QUEUE_CTL)
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RTW_INFO(FUNC_ADPT_FMT": netif_wake_subqueue[%d]\n", FUNC_ADPT_ARG(adapter), os_qid);
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netif_wake_subqueue(adapter->pnetdev, os_qid);
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}
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#else
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if (rtw_os_need_wake_queue(adapter, 0)) {
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if (DBG_DUMP_OS_QUEUE_CTL)
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RTW_INFO(FUNC_ADPT_FMT": netif_wake_queue\n", FUNC_ADPT_ARG(adapter));
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netif_wake_queue(adapter->pnetdev);
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}
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#endif
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}
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bool rtw_os_check_stop_queue(_adapter *adapter, u16 os_qid)
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{
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bool busy = _FALSE;
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
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if (rtw_os_need_stop_queue(adapter, os_qid)) {
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if (DBG_DUMP_OS_QUEUE_CTL)
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RTW_INFO(FUNC_ADPT_FMT": netif_stop_subqueue[%d]\n", FUNC_ADPT_ARG(adapter), os_qid);
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netif_stop_subqueue(adapter->pnetdev, os_qid);
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busy = _TRUE;
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}
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#else
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if (rtw_os_need_stop_queue(adapter, 0)) {
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if (DBG_DUMP_OS_QUEUE_CTL)
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RTW_INFO(FUNC_ADPT_FMT": netif_stop_queue\n", FUNC_ADPT_ARG(adapter));
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rtw_netif_stop_queue(adapter->pnetdev);
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busy = _TRUE;
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}
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#endif
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return busy;
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}
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void rtw_os_wake_queue_at_free_stainfo(_adapter *padapter, int *qcnt_freed)
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{
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
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int i;
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for (i = 0; i < 4; i++) {
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if (qcnt_freed[i] == 0)
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continue;
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if (rtw_os_need_wake_queue(padapter, i)) {
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if (DBG_DUMP_OS_QUEUE_CTL)
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RTW_INFO(FUNC_ADPT_FMT": netif_wake_subqueue[%d]\n", FUNC_ADPT_ARG(padapter), i);
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netif_wake_subqueue(padapter->pnetdev, i);
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}
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}
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#else
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if (qcnt_freed[0] || qcnt_freed[1] || qcnt_freed[2] || qcnt_freed[3]) {
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if (rtw_os_need_wake_queue(padapter, 0)) {
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if (DBG_DUMP_OS_QUEUE_CTL)
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RTW_INFO(FUNC_ADPT_FMT": netif_wake_queue\n", FUNC_ADPT_ARG(padapter));
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netif_wake_queue(padapter->pnetdev);
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}
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}
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#endif
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}
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int _rtw_xmit_entry(_pkt *pkt, _nic_hdl pnetdev)
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{
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_adapter *padapter = (_adapter *)rtw_netdev_priv(pnetdev);
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struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
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#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
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struct sk_buff *skb = pkt;
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struct sk_buff *segs, *nskb;
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netdev_features_t features = padapter->pnetdev->features;
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#endif
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u16 os_qid = 0;
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s32 res = 0;
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if (padapter->registrypriv.mp_mode) {
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RTW_INFO("MP_TX_DROP_OS_FRAME\n");
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goto drop_packet;
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}
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DBG_COUNTER(padapter->tx_logs.os_tx);
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if ((rtw_if_up(padapter) == _FALSE)
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#ifdef CONFIG_LAYER2_ROAMING
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&&(!padapter->mlmepriv.roam_network)
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#endif
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){
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DBG_COUNTER(padapter->tx_logs.os_tx_err_up);
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#ifdef DBG_TX_DROP_FRAME
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RTW_INFO("DBG_TX_DROP_FRAME %s if_up fail\n", __FUNCTION__);
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#endif
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goto drop_packet;
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}
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
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os_qid = skb_get_queue_mapping(pkt);
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#endif
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#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
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if (skb_shinfo(skb)->gso_size) {
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/* split a big(65k) skb into several small(1.5k) skbs */
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features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
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segs = skb_gso_segment(skb, features);
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if (IS_ERR(segs) || !segs)
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goto drop_packet;
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do {
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nskb = segs;
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segs = segs->next;
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nskb->next = NULL;
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rtw_mstat_update( MSTAT_TYPE_SKB, MSTAT_ALLOC_SUCCESS, nskb->truesize);
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res = rtw_xmit(padapter, &nskb, os_qid);
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if (res < 0) {
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#ifdef DBG_TX_DROP_FRAME
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RTW_INFO("DBG_TX_DROP_FRAME %s rtw_xmit fail\n", __FUNCTION__);
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#endif
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pxmitpriv->tx_drop++;
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rtw_os_pkt_complete(padapter, nskb);
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}
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} while (segs);
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rtw_os_pkt_complete(padapter, skb);
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goto exit;
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}
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#endif
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res = rtw_xmit(padapter, &pkt, os_qid);
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if (res < 0) {
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#ifdef DBG_TX_DROP_FRAME
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RTW_INFO("DBG_TX_DROP_FRAME %s rtw_xmit fail\n", __FUNCTION__);
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#endif
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goto drop_packet;
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}
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goto exit;
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drop_packet:
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pxmitpriv->tx_drop++;
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rtw_os_pkt_complete(padapter, pkt);
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exit:
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return 0;
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}
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#ifdef CONFIG_CUSTOMER_ALIBABA_GENERAL
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int check_alibaba_meshpkt(struct sk_buff *skb)
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{
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u16 protocol;
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if (skb)
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return (htons(skb->protocol) == ETH_P_ALL);
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return _FALSE;
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}
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s32 rtw_alibaba_mesh_xmit_entry(_pkt *pkt, struct net_device *ndev)
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{
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u16 frame_ctl;
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_adapter *padapter = (_adapter *)rtw_netdev_priv(ndev);
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struct pkt_file pktfile;
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struct rtw_ieee80211_hdr *pwlanhdr;
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struct pkt_attrib *pattrib;
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struct xmit_frame *pmgntframe;
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struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
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struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
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unsigned char *pframe;
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struct sk_buff *skb = (struct sk_buff *)pkt;
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int len = skb->len;
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rtw_mstat_update(MSTAT_TYPE_SKB, MSTAT_ALLOC_SUCCESS, skb->truesize);
|
|
|
|
pmgntframe = alloc_mgtxmitframe(pxmitpriv);
|
|
if (pmgntframe == NULL) {
|
|
goto fail;
|
|
return -1;
|
|
}
|
|
|
|
pattrib = &pmgntframe->attrib;
|
|
update_mgntframe_attrib(padapter, pattrib);
|
|
_rtw_memset(pmgntframe->buf_addr, 0, WLANHDR_OFFSET + TXDESC_OFFSET);
|
|
pframe = (u8 *)(pmgntframe->buf_addr) + TXDESC_OFFSET;
|
|
pwlanhdr = (struct rtw_ieee80211_hdr *)pframe;
|
|
|
|
_rtw_open_pktfile(pkt, &pktfile);
|
|
_rtw_pktfile_read(&pktfile, pframe, len);
|
|
|
|
pattrib->type = pframe[0] & 0x0C;
|
|
pattrib->subtype = pframe[0] & 0xF0;
|
|
pattrib->raid = rtw_get_mgntframe_raid(padapter, WIRELESS_11G);
|
|
pattrib->rate = MGN_24M;
|
|
pattrib->pktlen = len;
|
|
SetSeqNum(pwlanhdr, pmlmeext->mgnt_seq);
|
|
pmlmeext->mgnt_seq++;
|
|
|
|
RTW_DBG_DUMP("rtw_alibaba_mesh_xmit_entry payload:", skb->data, len);
|
|
|
|
pattrib->last_txcmdsz = pattrib->pktlen;
|
|
dump_mgntframe(padapter, pmgntframe);
|
|
|
|
fail:
|
|
rtw_skb_free(skb);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
|
|
netdev_tx_t rtw_xmit_entry(_pkt *pkt, _nic_hdl pnetdev)
|
|
#else
|
|
int rtw_xmit_entry(_pkt *pkt, _nic_hdl pnetdev)
|
|
#endif
|
|
{
|
|
_adapter *padapter = (_adapter *)rtw_netdev_priv(pnetdev);
|
|
struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
|
|
int ret = 0;
|
|
|
|
if (pkt) {
|
|
#ifdef CONFIG_CUSTOMER_ALIBABA_GENERAL
|
|
if (check_alibaba_meshpkt(pkt)) {
|
|
ret = rtw_alibaba_mesh_xmit_entry(pkt, pnetdev);
|
|
goto out;
|
|
}
|
|
#endif
|
|
if (check_fwstate(pmlmepriv, WIFI_MONITOR_STATE) == _TRUE) {
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24))
|
|
rtw_monitor_xmit_entry((struct sk_buff *)pkt, pnetdev);
|
|
#endif
|
|
}
|
|
else {
|
|
rtw_mstat_update(MSTAT_TYPE_SKB, MSTAT_ALLOC_SUCCESS, pkt->truesize);
|
|
ret = _rtw_xmit_entry(pkt, pnetdev);
|
|
}
|
|
|
|
}
|
|
|
|
#ifdef CONFIG_CUSTOMER_ALIBABA_GENERAL
|
|
out:
|
|
#endif
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
|
|
return (ret == 0) ? NETDEV_TX_OK : NETDEV_TX_BUSY;
|
|
#else
|
|
return ret;
|
|
#endif
|
|
}
|