/******************************************************************************
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*
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* Copyright(c) 2007 - 2019 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(struct sk_buff *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(struct sk_buff *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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#if 0 /*CONFIG_CORE_XMITBUF*/
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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 = dvobj_to_usb(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), SZ_ALIGN_XMITFRAME_EXT);
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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 = dvobj_to_usb(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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#else
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u8 rtw_os_xmit_resource_alloc(_adapter *padapter, struct xmit_frame *pxframe)
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{
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u32 alloc_sz = SZ_XMITFRAME_EXT + SZ_ALIGN_XMITFRAME_EXT;
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#if 0 /*def CONFIG_USE_USB_BUFFER_ALLOC_TX*/
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struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
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struct usb_device *pusbd = dvobj_to_usb(dvobj)->pusbdev;
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pxframe->prealloc_buf_addr = rtw_usb_buffer_alloc(pusbd, (size_t)alloc_sz, &pxframe->dma_transfer_addr);
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if (pxframe->prealloc_buf_addr == NULL) {
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RTW_ERR("%s prealloc_buf_addr failed\n", __func__);
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rtw_warn_on(1);
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return _FAIL;
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}
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pxframe->buf_addr = pxframe->prealloc_buf_addr;
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#else
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pxframe->prealloc_buf_addr = rtw_zmalloc(alloc_sz);
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if (pxframe->prealloc_buf_addr == NULL) {
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RTW_ERR("%s prealloc_buf_addr failed\n", __func__);
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rtw_warn_on(1);
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return _FAIL;
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}
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pxframe->buf_addr = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxframe->prealloc_buf_addr), SZ_ALIGN_XMITFRAME_EXT);
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#endif
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return _SUCCESS;
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}
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void rtw_os_xmit_resource_free(_adapter *padapter, struct xmit_frame *pxframe)
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{
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u32 free_sz = SZ_XMITFRAME_EXT + SZ_ALIGN_XMITFRAME_EXT;
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#if 0 /*def CONFIG_USE_USB_BUFFER_ALLOC_TX*/
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struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
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struct usb_device *pusbd = dvobj_to_usb(dvobj)->pusbdev;
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if (pxframe->prealloc_buf_addr) {
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rtw_usb_buffer_free(pusbd, (size_t)free_sz, pxframe->prealloc_buf_addr, pxframe->dma_transfer_addr);
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pxframe->prealloc_buf_addr = NULL;
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pxframe->buf_addr = NULL;
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pxframe->dma_transfer_addr = 0;
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}
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#else
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if (pxframe->prealloc_buf_addr) {
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rtw_mfree(pxframe->prealloc_buf_addr, free_sz);
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pxframe->prealloc_buf_addr = NULL;
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pxframe->buf_addr = NULL;
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}
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#endif
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}
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#endif
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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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return _TRUE;
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}
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return _FALSE;
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#else
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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, struct sk_buff *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 0 /*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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#elif defined(CONFIG_PCI_HCI) || defined(CONFIG_USB_HCI)
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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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_rtw_spinlock_bh(&pxmitpriv->lock);
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if (rtw_txframes_pending(padapter))
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#if defined(CONFIG_TX_AMSDU_SW_MODE) && defined(CONFIG_RTW_TX_AMSDU_USE_WQ)
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_set_workitem_cpu(&pxmitpriv->xmit_workitem);
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#else
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rtw_tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
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#endif
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_rtw_spinunlock_bh(&pxmitpriv->lock);
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#if 0 /*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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void rtw_os_check_wakup_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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if (rtw_os_need_wake_queue(padapter, 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(padapter), os_qid);
|
netif_wake_subqueue(padapter->pnetdev, os_qid);
|
}
|
#else
|
if (rtw_os_need_wake_queue(padapter, 0)) {
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if (DBG_DUMP_OS_QUEUE_CTL)
|
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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#endif
|
}
|
|
bool rtw_os_check_stop_queue(_adapter *padapter, u16 os_qid)
|
{
|
bool busy = _FALSE;
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
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if (rtw_os_need_stop_queue(padapter, os_qid)) {
|
if (DBG_DUMP_OS_QUEUE_CTL)
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RTW_INFO(FUNC_ADPT_FMT": netif_stop_subqueue[%d]\n", FUNC_ADPT_ARG(padapter), os_qid);
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netif_stop_subqueue(padapter->pnetdev, os_qid);
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busy = _TRUE;
|
}
|
#else
|
if (rtw_os_need_stop_queue(padapter, 0)) {
|
if (DBG_DUMP_OS_QUEUE_CTL)
|
RTW_INFO(FUNC_ADPT_FMT": netif_stop_queue\n", FUNC_ADPT_ARG(padapter));
|
rtw_netif_stop_queue(padapter->pnetdev);
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busy = _TRUE;
|
}
|
#endif
|
return busy;
|
}
|
|
void rtw_os_wake_queue_at_free_stainfo(_adapter *padapter, int *qcnt_freed)
|
{
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
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int i;
|
|
for (i = 0; i < 4; i++) {
|
if (qcnt_freed[i] == 0)
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continue;
|
|
if (rtw_os_need_wake_queue(padapter, i)) {
|
if (DBG_DUMP_OS_QUEUE_CTL)
|
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);
|
}
|
}
|
#else
|
if (qcnt_freed[0] || qcnt_freed[1] || qcnt_freed[2] || qcnt_freed[3]) {
|
if (rtw_os_need_wake_queue(padapter, 0)) {
|
if (DBG_DUMP_OS_QUEUE_CTL)
|
RTW_INFO(FUNC_ADPT_FMT": netif_wake_queue\n", FUNC_ADPT_ARG(padapter));
|
netif_wake_queue(padapter->pnetdev);
|
}
|
}
|
#endif
|
}
|
|
int _rtw_xmit_entry(struct sk_buff *pkt, _nic_hdl pnetdev)
|
{
|
_adapter *padapter = (_adapter *)rtw_netdev_priv(pnetdev);
|
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
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#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
|
struct sk_buff *skb = pkt;
|
struct sk_buff *segs, *nskb;
|
netdev_features_t features = padapter->pnetdev->features;
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#endif
|
u16 os_qid = 0;
|
s32 res = 0;
|
|
if (padapter->registrypriv.mp_mode) {
|
RTW_INFO("MP_TX_DROP_OS_FRAME\n");
|
goto drop_packet;
|
}
|
DBG_COUNTER(padapter->tx_logs.os_tx);
|
|
if (rtw_if_up(padapter) == _FALSE) {
|
DBG_COUNTER(padapter->tx_logs.os_tx_err_up);
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#ifdef DBG_TX_DROP_FRAME
|
RTW_INFO("DBG_TX_DROP_FRAME %s if_up fail\n", __FUNCTION__);
|
#endif
|
goto drop_packet;
|
}
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
|
os_qid = skb_get_queue_mapping(pkt);
|
#endif
|
|
#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
|
if (skb_shinfo(skb)->gso_size) {
|
/* split a big(65k) skb into several small(1.5k) skbs */
|
features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
|
segs = skb_gso_segment(skb, features);
|
if (IS_ERR(segs) || !segs)
|
goto drop_packet;
|
|
do {
|
nskb = segs;
|
segs = segs->next;
|
nskb->next = NULL;
|
rtw_mstat_update( MSTAT_TYPE_SKB, MSTAT_ALLOC_SUCCESS, nskb->truesize);
|
res = rtw_xmit(padapter, &nskb, os_qid);
|
if (res < 0) {
|
#ifdef DBG_TX_DROP_FRAME
|
RTW_INFO("DBG_TX_DROP_FRAME %s rtw_xmit fail\n", __FUNCTION__);
|
#endif
|
pxmitpriv->tx_drop++;
|
rtw_os_pkt_complete(padapter, nskb);
|
}
|
} while (segs);
|
rtw_os_pkt_complete(padapter, skb);
|
goto exit;
|
}
|
#endif
|
|
res = rtw_xmit(padapter, &pkt, os_qid);
|
if (res < 0) {
|
#ifdef DBG_TX_DROP_FRAME
|
RTW_INFO("DBG_TX_DROP_FRAME %s rtw_xmit fail\n", __FUNCTION__);
|
#endif
|
goto drop_packet;
|
}
|
|
goto exit;
|
|
drop_packet:
|
pxmitpriv->tx_drop++;
|
rtw_os_pkt_complete(padapter, pkt);
|
|
exit:
|
|
|
return 0;
|
}
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 0))
|
/* copy from skbuff.c to be compatible with old kernel */
|
static void kfree_skb_list(struct sk_buff *segs)
|
{
|
while (segs) {
|
struct sk_buff *next = segs->next;
|
|
kfree_skb(segs);
|
segs = next;
|
}
|
}
|
#endif
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
|
netdev_tx_t rtw_xmit_entry(struct sk_buff *pkt, _nic_hdl pnetdev)
|
#else
|
int rtw_xmit_entry(struct sk_buff *pkt, _nic_hdl pnetdev)
|
#endif
|
{
|
_adapter *padapter = (_adapter *)rtw_netdev_priv(pnetdev);
|
struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
|
int ret = 0;
|
|
if (pkt) {
|
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 {
|
#ifdef CONFIG_RTW_NETIF_SG
|
/* After turning on SG, net stack may (0.0025%) TX
|
* strange skb that is skb_has_frag_list() but linear
|
* (i.e. skb_is_nonlinear() is false). This is out of
|
* our expectation, so I free fragment list to be
|
* compatible with our design.
|
*/
|
if (skb_has_frag_list(pkt)) {
|
if (!skb_is_nonlinear(pkt)) {
|
kfree_skb_list(skb_shinfo(pkt)->frag_list);
|
skb_shinfo(pkt)->frag_list = NULL;
|
RTW_DBG("%s:%d free frag list\n", __func__, __LINE__);
|
} else {
|
RTW_DBG("%s:%d nonlinear frag list\n", __func__, __LINE__);
|
}
|
}
|
#endif
|
rtw_mstat_update(MSTAT_TYPE_SKB, MSTAT_ALLOC_SUCCESS, pkt->truesize);
|
#ifdef CONFIG_TX_SKB_ORPHAN
|
skb_orphan(pkt);
|
#endif
|
ret = rtw_os_tx(pkt, pnetdev);
|
}
|
|
}
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32))
|
return (ret == 0) ? NETDEV_TX_OK : NETDEV_TX_BUSY;
|
#else
|
return ret;
|
#endif
|
}
|
|
|
|
#ifdef RTW_PHL_TX
|
int rtw_os_is_adapter_ready(_adapter *padapter, struct sk_buff *pkt)
|
{
|
|
if (padapter->registrypriv.mp_mode) {
|
RTW_INFO("MP_TX_DROP_OS_FRAME\n");
|
return _FALSE;
|
}
|
|
DBG_COUNTER(padapter->tx_logs.os_tx);
|
|
if (rtw_if_up(padapter) == _FALSE) {
|
PHLTX_LOG;
|
DBG_COUNTER(padapter->tx_logs.os_tx_err_up);
|
#ifdef DBG_TX_DROP_FRAME
|
RTW_INFO("DBG_TX_DROP_FRAME %s if_up fail\n", __FUNCTION__);
|
#endif
|
return _FALSE;
|
}
|
|
if (IS_CH_WAITING(adapter_to_rfctl(padapter))){
|
PHLTX_LOG;
|
return _FALSE;
|
}
|
|
if (rtw_linked_check(padapter) == _FALSE){
|
PHLTX_LOG;
|
return _FALSE;
|
}
|
|
return _TRUE;
|
}
|
|
int rtw_os_tx(struct sk_buff *pkt, _nic_hdl pnetdev)
|
{
|
_adapter *padapter = (_adapter *)rtw_netdev_priv(pnetdev);
|
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
|
u16 os_qid = 0;
|
s32 res = 0;
|
|
#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
|
struct sk_buff *skb = pkt;
|
struct sk_buff *segs, *nskb;
|
netdev_features_t features = padapter->pnetdev->features;
|
#endif
|
#ifdef RTW_PHL_DBG_CMD
|
core_add_record(padapter, REC_TX_DATA, pkt);
|
#endif
|
|
PHLTX_LOG;
|
|
if (pkt->len == 0)
|
return 0;
|
|
if ((rtw_os_is_adapter_ready(padapter, pkt) == _FALSE)
|
#ifdef CONFIG_LAYER2_ROAMING
|
&& (!padapter->mlmepriv.roam_network)
|
#endif
|
)
|
goto drop_packet;
|
|
if (adapter_to_pwrctl(padapter)->bInSuspend == _TRUE) {
|
RTW_INFO("[%s] Stop TX because bInSuspend has been carried! \n", __func__);
|
goto drop_packet;
|
}
|
|
PHLTX_LOG;
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
|
os_qid = skb_get_queue_mapping(pkt);
|
#endif
|
|
#ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
|
if (skb_shinfo(skb)->gso_size) {
|
/* split a big(65k) skb into several small(1.5k) skbs */
|
features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
|
segs = skb_gso_segment(skb, features);
|
if (IS_ERR(segs) || !segs)
|
goto drop_packet;
|
|
do {
|
nskb = segs;
|
segs = segs->next;
|
nskb->next = NULL;
|
rtw_mstat_update( MSTAT_TYPE_SKB, MSTAT_ALLOC_SUCCESS, nskb->truesize);
|
res = rtw_core_tx(padapter, &nskb, NULL, os_qid);
|
if (res < 0) {
|
#ifdef DBG_TX_DROP_FRAME
|
RTW_INFO("DBG_TX_DROP_FRAME %s rtw_xmit fail\n", __FUNCTION__);
|
#endif
|
pxmitpriv->tx_drop++;
|
rtw_os_pkt_complete(padapter, nskb);
|
}
|
} while (segs);
|
rtw_os_pkt_complete(padapter, skb);
|
goto exit;
|
}
|
#endif
|
|
PHLTX_LOG;
|
if (rtw_core_tx(padapter, &pkt, NULL, os_qid) == FAIL)
|
goto inc_drop_cnt;
|
|
PHLTX_LOG;
|
|
goto exit;
|
|
drop_packet:
|
rtw_os_pkt_complete(padapter, pkt);
|
|
inc_drop_cnt:
|
pxmitpriv->tx_drop++;
|
|
exit:
|
return 0;
|
}
|
#endif
|
|
#ifdef CONFIG_TX_AMSDU_SW_MODE
|
static void ieee8023_header_to_rfc1042(struct sk_buff *skb, int pads)
|
{
|
void *data;
|
int pad;
|
__be16 len;
|
const int headroom = SNAP_SIZE + 2 + pads;
|
|
if (!skb)
|
return;
|
|
if (skb_headroom(skb) < headroom) {
|
RTW_WARN("%s: headroom=%d isn't enough\n", __func__, skb_headroom(skb));
|
if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) {
|
RTW_ERR("%s: no headroom=%d for skb\n",
|
__func__, headroom);
|
return;
|
}
|
}
|
|
data = skb_push(skb, headroom);
|
memset(data, 0, pads);
|
data += pads;
|
memmove(data, data + SNAP_SIZE + 2, 2 * ETH_ALEN);
|
data += 2 * ETH_ALEN;
|
len = cpu_to_be16(skb->len - pads - 2 * ETH_ALEN - 2);
|
memcpy(data, &len, 2);
|
memcpy(data + 2, rtw_rfc1042_header, SNAP_SIZE);
|
}
|
|
void rtw_coalesce_tx_amsdu(_adapter *padapter, struct xmit_frame *pxframes[],
|
int xf_nr, bool amsdu, u32 *pktlen)
|
{
|
struct xmit_frame *head_xframe;
|
struct xmit_frame *pxframe;
|
struct sk_buff *skb;
|
struct sk_buff *head_skb;
|
struct sk_buff **frag_tail;
|
int pads;
|
int i;
|
|
/* prepare head xmitframe */
|
head_xframe = pxframes[0];
|
head_skb = head_xframe->pkt;
|
|
ieee8023_header_to_rfc1042(head_skb, 0);
|
|
frag_tail = &skb_shinfo(head_skb)->frag_list;
|
while (*frag_tail)
|
frag_tail = &(*frag_tail)->next;
|
|
for (i = 1; i < xf_nr; i++) {
|
pxframe = pxframes[i];
|
skb = pxframe->pkt;
|
|
if (head_skb->len & 0x03)
|
pads = 4 - (head_skb->len & 0x03);
|
else
|
pads = 0;
|
|
ieee8023_header_to_rfc1042(skb, pads);
|
|
/* free sk accounting to have TP like doing skb_linearize() */
|
if (skb->destructor)
|
skb_orphan(skb);
|
|
/* add this skb to head_skb */
|
head_skb->len += skb->len;
|
head_skb->data_len += skb->len;
|
*frag_tail = skb;
|
while (*frag_tail)
|
frag_tail = &(*frag_tail)->next;
|
|
/* free this xframe */
|
pxframe->pkt = NULL; /* head xframe own */
|
core_tx_free_xmitframe(padapter, pxframe);
|
}
|
|
/* total skb length (includes all fragments) */
|
*pktlen = head_skb->len;
|
}
|
#endif /* CONFIG_TX_AMSDU_SW_MODE */
|
