// SPDX-License-Identifier: ISC
|
/*
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* Copyright (c) 2010 Broadcom Corporation
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*/
|
|
#include <linux/kernel.h>
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#include <linux/etherdevice.h>
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#include <linux/module.h>
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#include <linux/inetdevice.h>
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#include <net/cfg80211.h>
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#include <net/rtnetlink.h>
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#include <net/addrconf.h>
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#include <net/ieee80211_radiotap.h>
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#include <net/ipv6.h>
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#include <brcmu_utils.h>
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#include <brcmu_wifi.h>
|
|
#include "core.h"
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#include "bus.h"
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#include "debug.h"
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#include "fwil_types.h"
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#include "p2p.h"
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#include "pno.h"
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#include "cfg80211.h"
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#include "fwil.h"
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#include "feature.h"
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#include "proto.h"
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#include "pcie.h"
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#include "common.h"
|
|
#define MAX_WAIT_FOR_8021X_TX msecs_to_jiffies(950)
|
|
#define BRCMF_BSSIDX_INVALID -1
|
|
#define RXS_PBPRES BIT(2)
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|
#define D11_PHY_HDR_LEN 6
|
|
struct d11rxhdr_le {
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__le16 RxFrameSize;
|
u16 PAD;
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__le16 PhyRxStatus_0;
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__le16 PhyRxStatus_1;
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__le16 PhyRxStatus_2;
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__le16 PhyRxStatus_3;
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__le16 PhyRxStatus_4;
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__le16 PhyRxStatus_5;
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__le16 RxStatus1;
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__le16 RxStatus2;
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__le16 RxTSFTime;
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__le16 RxChan;
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u8 unknown[12];
|
} __packed;
|
|
struct wlc_d11rxhdr {
|
struct d11rxhdr_le rxhdr;
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__le32 tsf_l;
|
s8 rssi;
|
s8 rxpwr0;
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s8 rxpwr1;
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s8 do_rssi_ma;
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s8 rxpwr[4];
|
} __packed;
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|
char *brcmf_ifname(struct brcmf_if *ifp)
|
{
|
if (!ifp)
|
return "<if_null>";
|
|
if (ifp->ndev)
|
return ifp->ndev->name;
|
|
return "<if_none>";
|
}
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|
struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx)
|
{
|
struct brcmf_if *ifp;
|
s32 bsscfgidx;
|
|
if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
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bphy_err(drvr, "ifidx %d out of range\n", ifidx);
|
return NULL;
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}
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|
ifp = NULL;
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bsscfgidx = drvr->if2bss[ifidx];
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if (bsscfgidx >= 0)
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ifp = drvr->iflist[bsscfgidx];
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|
return ifp;
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}
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|
void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable)
|
{
|
s32 err;
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u32 mode;
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if (enable)
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mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
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else
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mode = 0;
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/* Try to set and enable ARP offload feature, this may fail, then it */
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/* is simply not supported and err 0 will be returned */
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err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
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if (err) {
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brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
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mode, err);
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} else {
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err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
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if (err) {
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brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
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enable, err);
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} else {
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brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
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enable, mode);
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}
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}
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err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable);
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if (err) {
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brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n",
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enable, err);
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} else {
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brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n",
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enable, mode);
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}
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}
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static void _brcmf_set_multicast_list(struct work_struct *work)
|
{
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struct brcmf_if *ifp = container_of(work, struct brcmf_if,
|
multicast_work);
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struct brcmf_pub *drvr = ifp->drvr;
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struct net_device *ndev;
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struct netdev_hw_addr *ha;
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u32 cmd_value, cnt;
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__le32 cnt_le;
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char *buf, *bufp;
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u32 buflen;
|
s32 err;
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brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
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ndev = ifp->ndev;
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/* Determine initial value of allmulti flag */
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cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false;
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/* Send down the multicast list first. */
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cnt = netdev_mc_count(ndev);
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buflen = sizeof(cnt) + (cnt * ETH_ALEN);
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buf = kmalloc(buflen, GFP_ATOMIC);
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if (!buf)
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return;
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bufp = buf;
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|
cnt_le = cpu_to_le32(cnt);
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memcpy(bufp, &cnt_le, sizeof(cnt_le));
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bufp += sizeof(cnt_le);
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|
netdev_for_each_mc_addr(ha, ndev) {
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if (!cnt)
|
break;
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memcpy(bufp, ha->addr, ETH_ALEN);
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bufp += ETH_ALEN;
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cnt--;
|
}
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err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen);
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if (err < 0) {
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bphy_err(drvr, "Setting mcast_list failed, %d\n", err);
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cmd_value = cnt ? true : cmd_value;
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}
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|
kfree(buf);
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/*
|
* Now send the allmulti setting. This is based on the setting in the
|
* net_device flags, but might be modified above to be turned on if we
|
* were trying to set some addresses and dongle rejected it...
|
*/
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err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value);
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if (err < 0)
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bphy_err(drvr, "Setting allmulti failed, %d\n", err);
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/*Finally, pick up the PROMISC flag */
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cmd_value = (ndev->flags & IFF_PROMISC) ? true : false;
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err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value);
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if (err < 0)
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bphy_err(drvr, "Setting BRCMF_C_SET_PROMISC failed, %d\n",
|
err);
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brcmf_configure_arp_nd_offload(ifp, !cmd_value);
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}
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#if IS_ENABLED(CONFIG_IPV6)
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static void _brcmf_update_ndtable(struct work_struct *work)
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{
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struct brcmf_if *ifp = container_of(work, struct brcmf_if,
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ndoffload_work);
|
struct brcmf_pub *drvr = ifp->drvr;
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int i, ret;
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/* clear the table in firmware */
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ret = brcmf_fil_iovar_data_set(ifp, "nd_hostip_clear", NULL, 0);
|
if (ret) {
|
brcmf_dbg(TRACE, "fail to clear nd ip table err:%d\n", ret);
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return;
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}
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for (i = 0; i < ifp->ipv6addr_idx; i++) {
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ret = brcmf_fil_iovar_data_set(ifp, "nd_hostip",
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&ifp->ipv6_addr_tbl[i],
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sizeof(struct in6_addr));
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if (ret)
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bphy_err(drvr, "add nd ip err %d\n", ret);
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}
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}
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#else
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static void _brcmf_update_ndtable(struct work_struct *work)
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{
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}
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#endif
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static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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struct sockaddr *sa = (struct sockaddr *)addr;
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struct brcmf_pub *drvr = ifp->drvr;
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int err;
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brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
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err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", sa->sa_data,
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ETH_ALEN);
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if (err < 0) {
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bphy_err(drvr, "Setting cur_etheraddr failed, %d\n", err);
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} else {
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brcmf_dbg(TRACE, "updated to %pM\n", sa->sa_data);
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memcpy(ifp->mac_addr, sa->sa_data, ETH_ALEN);
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memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
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}
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return err;
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}
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static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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schedule_work(&ifp->multicast_work);
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}
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/**
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* brcmf_skb_is_iapp - checks if skb is an IAPP packet
|
*
|
* @skb: skb to check
|
*/
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static bool brcmf_skb_is_iapp(struct sk_buff *skb)
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{
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static const u8 iapp_l2_update_packet[6] __aligned(2) = {
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0x00, 0x01, 0xaf, 0x81, 0x01, 0x00,
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};
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unsigned char *eth_data;
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#if !defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
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const u16 *a, *b;
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#endif
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if (skb->len - skb->mac_len != 6 ||
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!is_multicast_ether_addr(eth_hdr(skb)->h_dest))
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return false;
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eth_data = skb_mac_header(skb) + ETH_HLEN;
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#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
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return !(((*(const u32 *)eth_data) ^ (*(const u32 *)iapp_l2_update_packet)) |
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((*(const u16 *)(eth_data + 4)) ^ (*(const u16 *)(iapp_l2_update_packet + 4))));
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#else
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a = (const u16 *)eth_data;
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b = (const u16 *)iapp_l2_update_packet;
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return !((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2]));
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#endif
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}
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static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
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struct net_device *ndev)
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{
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int ret;
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struct brcmf_if *ifp = netdev_priv(ndev);
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struct brcmf_pub *drvr = ifp->drvr;
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struct ethhdr *eh;
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int head_delta;
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unsigned int tx_bytes = skb->len;
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brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
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/* Can the device send data? */
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if (drvr->bus_if->state != BRCMF_BUS_UP) {
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bphy_err(drvr, "xmit rejected state=%d\n", drvr->bus_if->state);
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netif_stop_queue(ndev);
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dev_kfree_skb(skb);
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ret = -ENODEV;
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goto done;
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}
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/* Some recent Broadcom's firmwares disassociate STA when they receive
|
* an 802.11f ADD frame. This behavior can lead to a local DoS security
|
* issue. Attacker may trigger disassociation of any STA by sending a
|
* proper Ethernet frame to the wireless interface.
|
*
|
* Moreover this feature may break AP interfaces in some specific
|
* setups. This applies e.g. to the bridge with hairpin mode enabled and
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* IFLA_BRPORT_MCAST_TO_UCAST set. IAPP packet generated by a firmware
|
* will get passed back to the wireless interface and cause immediate
|
* disassociation of a just-connected STA.
|
*/
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if (!drvr->settings->iapp && brcmf_skb_is_iapp(skb)) {
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dev_kfree_skb(skb);
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ret = -EINVAL;
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goto done;
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}
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/* Make sure there's enough writeable headroom */
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if (skb_headroom(skb) < drvr->hdrlen || skb_header_cloned(skb)) {
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head_delta = max_t(int, drvr->hdrlen - skb_headroom(skb), 0);
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brcmf_dbg(INFO, "%s: insufficient headroom (%d)\n",
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brcmf_ifname(ifp), head_delta);
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atomic_inc(&drvr->bus_if->stats.pktcowed);
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ret = pskb_expand_head(skb, ALIGN(head_delta, NET_SKB_PAD), 0,
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GFP_ATOMIC);
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if (ret < 0) {
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bphy_err(drvr, "%s: failed to expand headroom\n",
|
brcmf_ifname(ifp));
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atomic_inc(&drvr->bus_if->stats.pktcow_failed);
|
goto done;
|
}
|
}
|
|
/* validate length for ether packet */
|
if (skb->len < sizeof(*eh)) {
|
ret = -EINVAL;
|
dev_kfree_skb(skb);
|
goto done;
|
}
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|
eh = (struct ethhdr *)(skb->data);
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|
if (eh->h_proto == htons(ETH_P_PAE))
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atomic_inc(&ifp->pend_8021x_cnt);
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/* determine the priority */
|
if ((skb->priority == 0) || (skb->priority > 7))
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skb->priority = cfg80211_classify8021d(skb, NULL);
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/* set pacing shift for packet aggregation */
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sk_pacing_shift_update(skb->sk, 8);
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ret = brcmf_proto_tx_queue_data(drvr, ifp->ifidx, skb);
|
if (ret < 0)
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brcmf_txfinalize(ifp, skb, false);
|
|
done:
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if (ret) {
|
ndev->stats.tx_dropped++;
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} else {
|
ndev->stats.tx_packets++;
|
ndev->stats.tx_bytes += tx_bytes;
|
}
|
|
/* Return ok: we always eat the packet */
|
return NETDEV_TX_OK;
|
}
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void brcmf_txflowblock_if(struct brcmf_if *ifp,
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enum brcmf_netif_stop_reason reason, bool state)
|
{
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unsigned long flags;
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|
if (!ifp || !ifp->ndev)
|
return;
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|
brcmf_dbg(TRACE, "enter: bsscfgidx=%d stop=0x%X reason=%d state=%d\n",
|
ifp->bsscfgidx, ifp->netif_stop, reason, state);
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|
spin_lock_irqsave(&ifp->netif_stop_lock, flags);
|
if (state) {
|
if (!ifp->netif_stop)
|
netif_stop_queue(ifp->ndev);
|
ifp->netif_stop |= reason;
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} else {
|
ifp->netif_stop &= ~reason;
|
if (!ifp->netif_stop)
|
netif_wake_queue(ifp->ndev);
|
}
|
spin_unlock_irqrestore(&ifp->netif_stop_lock, flags);
|
}
|
|
void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb, bool inirq)
|
{
|
/* Most of Broadcom's firmwares send 802.11f ADD frame every time a new
|
* STA connects to the AP interface. This is an obsoleted standard most
|
* users don't use, so don't pass these frames up unless requested.
|
*/
|
if (!ifp->drvr->settings->iapp && brcmf_skb_is_iapp(skb)) {
|
brcmu_pkt_buf_free_skb(skb);
|
return;
|
}
|
|
if (skb->pkt_type == PACKET_MULTICAST)
|
ifp->ndev->stats.multicast++;
|
|
if (!(ifp->ndev->flags & IFF_UP)) {
|
brcmu_pkt_buf_free_skb(skb);
|
return;
|
}
|
|
ifp->ndev->stats.rx_bytes += skb->len;
|
ifp->ndev->stats.rx_packets++;
|
|
brcmf_dbg(DATA, "rx proto=0x%X\n", ntohs(skb->protocol));
|
if (inirq) {
|
netif_rx(skb);
|
} else {
|
/* If the receive is not processed inside an ISR,
|
* the softirqd must be woken explicitly to service
|
* the NET_RX_SOFTIRQ. This is handled by netif_rx_ni().
|
*/
|
netif_rx_ni(skb);
|
}
|
}
|
|
void brcmf_netif_mon_rx(struct brcmf_if *ifp, struct sk_buff *skb)
|
{
|
if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MONITOR_FMT_RADIOTAP)) {
|
/* Do nothing */
|
} else if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MONITOR_FMT_HW_RX_HDR)) {
|
struct wlc_d11rxhdr *wlc_rxhdr = (struct wlc_d11rxhdr *)skb->data;
|
struct ieee80211_radiotap_header *radiotap;
|
unsigned int offset;
|
u16 RxStatus1;
|
|
RxStatus1 = le16_to_cpu(wlc_rxhdr->rxhdr.RxStatus1);
|
|
offset = sizeof(struct wlc_d11rxhdr);
|
/* MAC inserts 2 pad bytes for a4 headers or QoS or A-MSDU
|
* subframes
|
*/
|
if (RxStatus1 & RXS_PBPRES)
|
offset += 2;
|
offset += D11_PHY_HDR_LEN;
|
|
skb_pull(skb, offset);
|
|
/* TODO: use RX header to fill some radiotap data */
|
radiotap = skb_push(skb, sizeof(*radiotap));
|
memset(radiotap, 0, sizeof(*radiotap));
|
radiotap->it_len = cpu_to_le16(sizeof(*radiotap));
|
|
/* TODO: 4 bytes with receive status? */
|
skb->len -= 4;
|
} else {
|
struct ieee80211_radiotap_header *radiotap;
|
|
/* TODO: use RX status to fill some radiotap data */
|
radiotap = skb_push(skb, sizeof(*radiotap));
|
memset(radiotap, 0, sizeof(*radiotap));
|
radiotap->it_len = cpu_to_le16(sizeof(*radiotap));
|
|
/* TODO: 4 bytes with receive status? */
|
skb->len -= 4;
|
}
|
|
skb->dev = ifp->ndev;
|
skb_reset_mac_header(skb);
|
skb->pkt_type = PACKET_OTHERHOST;
|
skb->protocol = htons(ETH_P_802_2);
|
|
brcmf_netif_rx(ifp, skb, false);
|
}
|
|
static int brcmf_rx_hdrpull(struct brcmf_pub *drvr, struct sk_buff *skb,
|
struct brcmf_if **ifp)
|
{
|
int ret;
|
|
/* process and remove protocol-specific header */
|
ret = brcmf_proto_hdrpull(drvr, true, skb, ifp);
|
|
if (ret || !(*ifp) || !(*ifp)->ndev) {
|
if (ret != -ENODATA && *ifp && (*ifp)->ndev)
|
(*ifp)->ndev->stats.rx_errors++;
|
brcmu_pkt_buf_free_skb(skb);
|
return -ENODATA;
|
}
|
|
skb->protocol = eth_type_trans(skb, (*ifp)->ndev);
|
return 0;
|
}
|
|
void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event,
|
bool inirq)
|
{
|
struct brcmf_if *ifp;
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
struct brcmf_pub *drvr = bus_if->drvr;
|
|
brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
|
|
if (brcmf_rx_hdrpull(drvr, skb, &ifp))
|
return;
|
|
if (brcmf_proto_is_reorder_skb(skb)) {
|
brcmf_proto_rxreorder(ifp, skb, inirq);
|
} else {
|
/* Process special event packets */
|
if (handle_event) {
|
gfp_t gfp = inirq ? GFP_ATOMIC : GFP_KERNEL;
|
|
brcmf_fweh_process_skb(ifp->drvr, skb,
|
BCMILCP_SUBTYPE_VENDOR_LONG, gfp);
|
}
|
brcmf_netif_rx(ifp, skb, inirq);
|
}
|
}
|
|
void brcmf_rx_event(struct device *dev, struct sk_buff *skb)
|
{
|
struct brcmf_if *ifp;
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
struct brcmf_pub *drvr = bus_if->drvr;
|
|
brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
|
|
if (brcmf_rx_hdrpull(drvr, skb, &ifp))
|
return;
|
|
brcmf_fweh_process_skb(ifp->drvr, skb, 0, GFP_KERNEL);
|
brcmu_pkt_buf_free_skb(skb);
|
}
|
|
void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success)
|
{
|
struct ethhdr *eh;
|
u16 type;
|
|
eh = (struct ethhdr *)(txp->data);
|
type = ntohs(eh->h_proto);
|
|
if (type == ETH_P_PAE) {
|
atomic_dec(&ifp->pend_8021x_cnt);
|
if (waitqueue_active(&ifp->pend_8021x_wait))
|
wake_up(&ifp->pend_8021x_wait);
|
}
|
|
if (!success)
|
ifp->ndev->stats.tx_errors++;
|
|
brcmu_pkt_buf_free_skb(txp);
|
}
|
|
static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
|
struct ethtool_drvinfo *info)
|
{
|
struct brcmf_if *ifp = netdev_priv(ndev);
|
struct brcmf_pub *drvr = ifp->drvr;
|
char drev[BRCMU_DOTREV_LEN] = "n/a";
|
|
if (drvr->revinfo.result == 0)
|
brcmu_dotrev_str(drvr->revinfo.driverrev, drev);
|
strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
|
strlcpy(info->version, drev, sizeof(info->version));
|
strlcpy(info->fw_version, drvr->fwver, sizeof(info->fw_version));
|
strlcpy(info->bus_info, dev_name(drvr->bus_if->dev),
|
sizeof(info->bus_info));
|
}
|
|
static const struct ethtool_ops brcmf_ethtool_ops = {
|
.get_drvinfo = brcmf_ethtool_get_drvinfo,
|
};
|
|
static int brcmf_netdev_stop(struct net_device *ndev)
|
{
|
struct brcmf_if *ifp = netdev_priv(ndev);
|
|
brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
|
|
brcmf_cfg80211_down(ndev);
|
|
brcmf_net_setcarrier(ifp, false);
|
|
return 0;
|
}
|
|
static int brcmf_netdev_open(struct net_device *ndev)
|
{
|
struct brcmf_if *ifp = netdev_priv(ndev);
|
struct brcmf_pub *drvr = ifp->drvr;
|
struct brcmf_bus *bus_if = drvr->bus_if;
|
u32 toe_ol;
|
|
brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
|
|
/* If bus is not ready, can't continue */
|
if (bus_if->state != BRCMF_BUS_UP) {
|
bphy_err(drvr, "failed bus is not ready\n");
|
return -EAGAIN;
|
}
|
|
atomic_set(&ifp->pend_8021x_cnt, 0);
|
|
/* Get current TOE mode from dongle */
|
if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0
|
&& (toe_ol & TOE_TX_CSUM_OL) != 0)
|
ndev->features |= NETIF_F_IP_CSUM;
|
else
|
ndev->features &= ~NETIF_F_IP_CSUM;
|
|
if (brcmf_cfg80211_up(ndev)) {
|
bphy_err(drvr, "failed to bring up cfg80211\n");
|
return -EIO;
|
}
|
|
/* Clear, carrier, set when connected or AP mode. */
|
netif_carrier_off(ndev);
|
return 0;
|
}
|
|
static const struct net_device_ops brcmf_netdev_ops_pri = {
|
.ndo_open = brcmf_netdev_open,
|
.ndo_stop = brcmf_netdev_stop,
|
.ndo_start_xmit = brcmf_netdev_start_xmit,
|
.ndo_set_mac_address = brcmf_netdev_set_mac_address,
|
.ndo_set_rx_mode = brcmf_netdev_set_multicast_list
|
};
|
|
int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
|
{
|
struct brcmf_pub *drvr = ifp->drvr;
|
struct net_device *ndev;
|
s32 err;
|
|
brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
|
ifp->mac_addr);
|
ndev = ifp->ndev;
|
|
/* set appropriate operations */
|
ndev->netdev_ops = &brcmf_netdev_ops_pri;
|
|
ndev->needed_headroom += drvr->hdrlen;
|
ndev->ethtool_ops = &brcmf_ethtool_ops;
|
|
/* set the mac address & netns */
|
memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
|
dev_net_set(ndev, wiphy_net(cfg_to_wiphy(drvr->config)));
|
|
INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list);
|
INIT_WORK(&ifp->ndoffload_work, _brcmf_update_ndtable);
|
|
if (rtnl_locked)
|
err = register_netdevice(ndev);
|
else
|
err = register_netdev(ndev);
|
if (err != 0) {
|
bphy_err(drvr, "couldn't register the net device\n");
|
goto fail;
|
}
|
|
netif_carrier_off(ndev);
|
|
ndev->priv_destructor = brcmf_cfg80211_free_netdev;
|
brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
|
return 0;
|
|
fail:
|
drvr->iflist[ifp->bsscfgidx] = NULL;
|
ndev->netdev_ops = NULL;
|
return -EBADE;
|
}
|
|
void brcmf_net_detach(struct net_device *ndev, bool rtnl_locked)
|
{
|
if (ndev->reg_state == NETREG_REGISTERED) {
|
if (rtnl_locked)
|
unregister_netdevice(ndev);
|
else
|
unregister_netdev(ndev);
|
} else {
|
brcmf_cfg80211_free_netdev(ndev);
|
free_netdev(ndev);
|
}
|
}
|
|
static int brcmf_net_mon_open(struct net_device *ndev)
|
{
|
struct brcmf_if *ifp = netdev_priv(ndev);
|
struct brcmf_pub *drvr = ifp->drvr;
|
u32 monitor;
|
int err;
|
|
brcmf_dbg(TRACE, "Enter\n");
|
|
err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_MONITOR, &monitor);
|
if (err) {
|
bphy_err(drvr, "BRCMF_C_GET_MONITOR error (%d)\n", err);
|
return err;
|
} else if (monitor) {
|
bphy_err(drvr, "Monitor mode is already enabled\n");
|
return -EEXIST;
|
}
|
|
monitor = 3;
|
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_MONITOR, monitor);
|
if (err)
|
bphy_err(drvr, "BRCMF_C_SET_MONITOR error (%d)\n", err);
|
|
return err;
|
}
|
|
static int brcmf_net_mon_stop(struct net_device *ndev)
|
{
|
struct brcmf_if *ifp = netdev_priv(ndev);
|
struct brcmf_pub *drvr = ifp->drvr;
|
u32 monitor;
|
int err;
|
|
brcmf_dbg(TRACE, "Enter\n");
|
|
monitor = 0;
|
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_MONITOR, monitor);
|
if (err)
|
bphy_err(drvr, "BRCMF_C_SET_MONITOR error (%d)\n", err);
|
|
return err;
|
}
|
|
static netdev_tx_t brcmf_net_mon_start_xmit(struct sk_buff *skb,
|
struct net_device *ndev)
|
{
|
dev_kfree_skb_any(skb);
|
|
return NETDEV_TX_OK;
|
}
|
|
static const struct net_device_ops brcmf_netdev_ops_mon = {
|
.ndo_open = brcmf_net_mon_open,
|
.ndo_stop = brcmf_net_mon_stop,
|
.ndo_start_xmit = brcmf_net_mon_start_xmit,
|
};
|
|
int brcmf_net_mon_attach(struct brcmf_if *ifp)
|
{
|
struct brcmf_pub *drvr = ifp->drvr;
|
struct net_device *ndev;
|
int err;
|
|
brcmf_dbg(TRACE, "Enter\n");
|
|
ndev = ifp->ndev;
|
ndev->netdev_ops = &brcmf_netdev_ops_mon;
|
|
err = register_netdevice(ndev);
|
if (err)
|
bphy_err(drvr, "Failed to register %s device\n", ndev->name);
|
|
return err;
|
}
|
|
void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on)
|
{
|
struct net_device *ndev;
|
|
brcmf_dbg(TRACE, "Enter, bsscfgidx=%d carrier=%d\n", ifp->bsscfgidx,
|
on);
|
|
ndev = ifp->ndev;
|
brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_DISCONNECTED, !on);
|
if (on) {
|
if (!netif_carrier_ok(ndev))
|
netif_carrier_on(ndev);
|
|
} else {
|
if (netif_carrier_ok(ndev))
|
netif_carrier_off(ndev);
|
}
|
}
|
|
static int brcmf_net_p2p_open(struct net_device *ndev)
|
{
|
brcmf_dbg(TRACE, "Enter\n");
|
|
return brcmf_cfg80211_up(ndev);
|
}
|
|
static int brcmf_net_p2p_stop(struct net_device *ndev)
|
{
|
brcmf_dbg(TRACE, "Enter\n");
|
|
return brcmf_cfg80211_down(ndev);
|
}
|
|
static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb,
|
struct net_device *ndev)
|
{
|
if (skb)
|
dev_kfree_skb_any(skb);
|
|
return NETDEV_TX_OK;
|
}
|
|
static const struct net_device_ops brcmf_netdev_ops_p2p = {
|
.ndo_open = brcmf_net_p2p_open,
|
.ndo_stop = brcmf_net_p2p_stop,
|
.ndo_start_xmit = brcmf_net_p2p_start_xmit
|
};
|
|
static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
|
{
|
struct brcmf_pub *drvr = ifp->drvr;
|
struct net_device *ndev;
|
|
brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
|
ifp->mac_addr);
|
ndev = ifp->ndev;
|
|
ndev->netdev_ops = &brcmf_netdev_ops_p2p;
|
|
/* set the mac address */
|
memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
|
|
if (register_netdev(ndev) != 0) {
|
bphy_err(drvr, "couldn't register the p2p net device\n");
|
goto fail;
|
}
|
|
brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
|
|
return 0;
|
|
fail:
|
ifp->drvr->iflist[ifp->bsscfgidx] = NULL;
|
ndev->netdev_ops = NULL;
|
return -EBADE;
|
}
|
|
struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
|
bool is_p2pdev, const char *name, u8 *mac_addr)
|
{
|
struct brcmf_if *ifp;
|
struct net_device *ndev;
|
|
brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx, ifidx);
|
|
ifp = drvr->iflist[bsscfgidx];
|
/*
|
* Delete the existing interface before overwriting it
|
* in case we missed the BRCMF_E_IF_DEL event.
|
*/
|
if (ifp) {
|
if (ifidx) {
|
bphy_err(drvr, "ERROR: netdev:%s already exists\n",
|
ifp->ndev->name);
|
netif_stop_queue(ifp->ndev);
|
brcmf_net_detach(ifp->ndev, false);
|
drvr->iflist[bsscfgidx] = NULL;
|
} else {
|
brcmf_dbg(INFO, "netdev:%s ignore IF event\n",
|
ifp->ndev->name);
|
return ERR_PTR(-EINVAL);
|
}
|
}
|
|
if (!drvr->settings->p2p_enable && is_p2pdev) {
|
/* this is P2P_DEVICE interface */
|
brcmf_dbg(INFO, "allocate non-netdev interface\n");
|
ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
|
if (!ifp)
|
return ERR_PTR(-ENOMEM);
|
} else {
|
brcmf_dbg(INFO, "allocate netdev interface\n");
|
/* Allocate netdev, including space for private structure */
|
ndev = alloc_netdev(sizeof(*ifp), is_p2pdev ? "p2p%d" : name,
|
NET_NAME_UNKNOWN, ether_setup);
|
if (!ndev)
|
return ERR_PTR(-ENOMEM);
|
|
ndev->needs_free_netdev = true;
|
ifp = netdev_priv(ndev);
|
ifp->ndev = ndev;
|
/* store mapping ifidx to bsscfgidx */
|
if (drvr->if2bss[ifidx] == BRCMF_BSSIDX_INVALID)
|
drvr->if2bss[ifidx] = bsscfgidx;
|
}
|
|
ifp->drvr = drvr;
|
drvr->iflist[bsscfgidx] = ifp;
|
ifp->ifidx = ifidx;
|
ifp->bsscfgidx = bsscfgidx;
|
|
init_waitqueue_head(&ifp->pend_8021x_wait);
|
spin_lock_init(&ifp->netif_stop_lock);
|
|
if (mac_addr != NULL)
|
memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
|
|
brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
|
current->pid, name, ifp->mac_addr);
|
|
return ifp;
|
}
|
|
static void brcmf_del_if(struct brcmf_pub *drvr, s32 bsscfgidx,
|
bool rtnl_locked)
|
{
|
struct brcmf_if *ifp;
|
int ifidx;
|
|
ifp = drvr->iflist[bsscfgidx];
|
if (!ifp) {
|
bphy_err(drvr, "Null interface, bsscfgidx=%d\n", bsscfgidx);
|
return;
|
}
|
brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx,
|
ifp->ifidx);
|
ifidx = ifp->ifidx;
|
|
if (ifp->ndev) {
|
if (bsscfgidx == 0) {
|
if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
|
rtnl_lock();
|
brcmf_netdev_stop(ifp->ndev);
|
rtnl_unlock();
|
}
|
} else {
|
netif_stop_queue(ifp->ndev);
|
}
|
|
if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
|
cancel_work_sync(&ifp->multicast_work);
|
cancel_work_sync(&ifp->ndoffload_work);
|
}
|
brcmf_net_detach(ifp->ndev, rtnl_locked);
|
} else {
|
/* Only p2p device interfaces which get dynamically created
|
* end up here. In this case the p2p module should be informed
|
* about the removal of the interface within the firmware. If
|
* not then p2p commands towards the firmware will cause some
|
* serious troublesome side effects. The p2p module will clean
|
* up the ifp if needed.
|
*/
|
brcmf_p2p_ifp_removed(ifp, rtnl_locked);
|
kfree(ifp);
|
}
|
|
drvr->iflist[bsscfgidx] = NULL;
|
if (drvr->if2bss[ifidx] == bsscfgidx)
|
drvr->if2bss[ifidx] = BRCMF_BSSIDX_INVALID;
|
}
|
|
void brcmf_remove_interface(struct brcmf_if *ifp, bool rtnl_locked)
|
{
|
if (!ifp || WARN_ON(ifp->drvr->iflist[ifp->bsscfgidx] != ifp))
|
return;
|
brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", ifp->bsscfgidx,
|
ifp->ifidx);
|
brcmf_proto_del_if(ifp->drvr, ifp);
|
brcmf_del_if(ifp->drvr, ifp->bsscfgidx, rtnl_locked);
|
}
|
|
static int brcmf_psm_watchdog_notify(struct brcmf_if *ifp,
|
const struct brcmf_event_msg *evtmsg,
|
void *data)
|
{
|
struct brcmf_pub *drvr = ifp->drvr;
|
int err;
|
|
brcmf_dbg(TRACE, "enter: bsscfgidx=%d\n", ifp->bsscfgidx);
|
|
bphy_err(drvr, "PSM's watchdog has fired!\n");
|
|
err = brcmf_debug_create_memdump(ifp->drvr->bus_if, data,
|
evtmsg->datalen);
|
if (err)
|
bphy_err(drvr, "Failed to get memory dump, %d\n", err);
|
|
return err;
|
}
|
|
#ifdef CONFIG_INET
|
#define ARPOL_MAX_ENTRIES 8
|
static int brcmf_inetaddr_changed(struct notifier_block *nb,
|
unsigned long action, void *data)
|
{
|
struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
|
inetaddr_notifier);
|
struct in_ifaddr *ifa = data;
|
struct net_device *ndev = ifa->ifa_dev->dev;
|
struct brcmf_if *ifp;
|
int idx, i, ret;
|
u32 val;
|
__be32 addr_table[ARPOL_MAX_ENTRIES] = {0};
|
|
/* Find out if the notification is meant for us */
|
for (idx = 0; idx < BRCMF_MAX_IFS; idx++) {
|
ifp = drvr->iflist[idx];
|
if (ifp && ifp->ndev == ndev)
|
break;
|
if (idx == BRCMF_MAX_IFS - 1)
|
return NOTIFY_DONE;
|
}
|
|
/* check if arp offload is supported */
|
ret = brcmf_fil_iovar_int_get(ifp, "arpoe", &val);
|
if (ret)
|
return NOTIFY_OK;
|
|
/* old version only support primary index */
|
ret = brcmf_fil_iovar_int_get(ifp, "arp_version", &val);
|
if (ret)
|
val = 1;
|
if (val == 1)
|
ifp = drvr->iflist[0];
|
|
/* retrieve the table from firmware */
|
ret = brcmf_fil_iovar_data_get(ifp, "arp_hostip", addr_table,
|
sizeof(addr_table));
|
if (ret) {
|
bphy_err(drvr, "fail to get arp ip table err:%d\n", ret);
|
return NOTIFY_OK;
|
}
|
|
for (i = 0; i < ARPOL_MAX_ENTRIES; i++)
|
if (ifa->ifa_address == addr_table[i])
|
break;
|
|
switch (action) {
|
case NETDEV_UP:
|
if (i == ARPOL_MAX_ENTRIES) {
|
brcmf_dbg(TRACE, "add %pI4 to arp table\n",
|
&ifa->ifa_address);
|
/* set it directly */
|
ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
|
&ifa->ifa_address, sizeof(ifa->ifa_address));
|
if (ret)
|
bphy_err(drvr, "add arp ip err %d\n", ret);
|
}
|
break;
|
case NETDEV_DOWN:
|
if (i < ARPOL_MAX_ENTRIES) {
|
addr_table[i] = 0;
|
brcmf_dbg(TRACE, "remove %pI4 from arp table\n",
|
&ifa->ifa_address);
|
/* clear the table in firmware */
|
ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear",
|
NULL, 0);
|
if (ret) {
|
bphy_err(drvr, "fail to clear arp ip table err:%d\n",
|
ret);
|
return NOTIFY_OK;
|
}
|
for (i = 0; i < ARPOL_MAX_ENTRIES; i++) {
|
if (addr_table[i] == 0)
|
continue;
|
ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
|
&addr_table[i],
|
sizeof(addr_table[i]));
|
if (ret)
|
bphy_err(drvr, "add arp ip err %d\n",
|
ret);
|
}
|
}
|
break;
|
default:
|
break;
|
}
|
|
return NOTIFY_OK;
|
}
|
#endif
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
static int brcmf_inet6addr_changed(struct notifier_block *nb,
|
unsigned long action, void *data)
|
{
|
struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
|
inet6addr_notifier);
|
struct inet6_ifaddr *ifa = data;
|
struct brcmf_if *ifp;
|
int i;
|
struct in6_addr *table;
|
|
/* Only handle primary interface */
|
ifp = drvr->iflist[0];
|
if (!ifp)
|
return NOTIFY_DONE;
|
if (ifp->ndev != ifa->idev->dev)
|
return NOTIFY_DONE;
|
|
table = ifp->ipv6_addr_tbl;
|
for (i = 0; i < NDOL_MAX_ENTRIES; i++)
|
if (ipv6_addr_equal(&ifa->addr, &table[i]))
|
break;
|
|
switch (action) {
|
case NETDEV_UP:
|
if (i == NDOL_MAX_ENTRIES) {
|
if (ifp->ipv6addr_idx < NDOL_MAX_ENTRIES) {
|
table[ifp->ipv6addr_idx++] = ifa->addr;
|
} else {
|
for (i = 0; i < NDOL_MAX_ENTRIES - 1; i++)
|
table[i] = table[i + 1];
|
table[NDOL_MAX_ENTRIES - 1] = ifa->addr;
|
}
|
}
|
break;
|
case NETDEV_DOWN:
|
if (i < NDOL_MAX_ENTRIES) {
|
for (; i < ifp->ipv6addr_idx - 1; i++)
|
table[i] = table[i + 1];
|
memset(&table[i], 0, sizeof(table[i]));
|
ifp->ipv6addr_idx--;
|
}
|
break;
|
default:
|
break;
|
}
|
|
schedule_work(&ifp->ndoffload_work);
|
|
return NOTIFY_OK;
|
}
|
#endif
|
|
static int brcmf_revinfo_read(struct seq_file *s, void *data)
|
{
|
struct brcmf_bus *bus_if = dev_get_drvdata(s->private);
|
struct brcmf_rev_info *ri = &bus_if->drvr->revinfo;
|
char drev[BRCMU_DOTREV_LEN];
|
char brev[BRCMU_BOARDREV_LEN];
|
|
seq_printf(s, "vendorid: 0x%04x\n", ri->vendorid);
|
seq_printf(s, "deviceid: 0x%04x\n", ri->deviceid);
|
seq_printf(s, "radiorev: %s\n", brcmu_dotrev_str(ri->radiorev, drev));
|
seq_printf(s, "chip: %s\n", ri->chipname);
|
seq_printf(s, "chippkg: %u\n", ri->chippkg);
|
seq_printf(s, "corerev: %u\n", ri->corerev);
|
seq_printf(s, "boardid: 0x%04x\n", ri->boardid);
|
seq_printf(s, "boardvendor: 0x%04x\n", ri->boardvendor);
|
seq_printf(s, "boardrev: %s\n", brcmu_boardrev_str(ri->boardrev, brev));
|
seq_printf(s, "driverrev: %s\n", brcmu_dotrev_str(ri->driverrev, drev));
|
seq_printf(s, "ucoderev: %u\n", ri->ucoderev);
|
seq_printf(s, "bus: %u\n", ri->bus);
|
seq_printf(s, "phytype: %u\n", ri->phytype);
|
seq_printf(s, "phyrev: %u\n", ri->phyrev);
|
seq_printf(s, "anarev: %u\n", ri->anarev);
|
seq_printf(s, "nvramrev: %08x\n", ri->nvramrev);
|
|
seq_printf(s, "clmver: %s\n", bus_if->drvr->clmver);
|
|
return 0;
|
}
|
|
static void brcmf_core_bus_reset(struct work_struct *work)
|
{
|
struct brcmf_pub *drvr = container_of(work, struct brcmf_pub,
|
bus_reset);
|
|
brcmf_bus_reset(drvr->bus_if);
|
}
|
|
static ssize_t bus_reset_write(struct file *file, const char __user *user_buf,
|
size_t count, loff_t *ppos)
|
{
|
struct brcmf_pub *drvr = file->private_data;
|
u8 value;
|
|
if (kstrtou8_from_user(user_buf, count, 0, &value))
|
return -EINVAL;
|
|
if (value != 1)
|
return -EINVAL;
|
|
schedule_work(&drvr->bus_reset);
|
|
return count;
|
}
|
|
static const struct file_operations bus_reset_fops = {
|
.open = simple_open,
|
.llseek = no_llseek,
|
.write = bus_reset_write,
|
};
|
|
static int brcmf_bus_started(struct brcmf_pub *drvr, struct cfg80211_ops *ops)
|
{
|
int ret = -1;
|
struct brcmf_bus *bus_if = drvr->bus_if;
|
struct brcmf_if *ifp;
|
struct brcmf_if *p2p_ifp;
|
|
brcmf_dbg(TRACE, "\n");
|
|
/* add primary networking interface */
|
ifp = brcmf_add_if(drvr, 0, 0, false, "wlan%d", NULL);
|
if (IS_ERR(ifp))
|
return PTR_ERR(ifp);
|
|
p2p_ifp = NULL;
|
|
/* signal bus ready */
|
brcmf_bus_change_state(bus_if, BRCMF_BUS_UP);
|
|
/* do bus specific preinit here */
|
ret = brcmf_bus_preinit(bus_if);
|
if (ret < 0)
|
goto fail;
|
|
/* Bus is ready, do any initialization */
|
ret = brcmf_c_preinit_dcmds(ifp);
|
if (ret < 0)
|
goto fail;
|
|
brcmf_feat_attach(drvr);
|
|
ret = brcmf_proto_init_done(drvr);
|
if (ret < 0)
|
goto fail;
|
|
brcmf_proto_add_if(drvr, ifp);
|
|
drvr->config = brcmf_cfg80211_attach(drvr, ops,
|
drvr->settings->p2p_enable);
|
if (drvr->config == NULL) {
|
ret = -ENOMEM;
|
goto fail;
|
}
|
|
ret = brcmf_net_attach(ifp, false);
|
|
if ((!ret) && (drvr->settings->p2p_enable)) {
|
p2p_ifp = drvr->iflist[1];
|
if (p2p_ifp)
|
ret = brcmf_net_p2p_attach(p2p_ifp);
|
}
|
|
if (ret)
|
goto fail;
|
|
#ifdef CONFIG_INET
|
drvr->inetaddr_notifier.notifier_call = brcmf_inetaddr_changed;
|
ret = register_inetaddr_notifier(&drvr->inetaddr_notifier);
|
if (ret)
|
goto fail;
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
drvr->inet6addr_notifier.notifier_call = brcmf_inet6addr_changed;
|
ret = register_inet6addr_notifier(&drvr->inet6addr_notifier);
|
if (ret) {
|
unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
|
goto fail;
|
}
|
#endif
|
#endif /* CONFIG_INET */
|
|
INIT_WORK(&drvr->bus_reset, brcmf_core_bus_reset);
|
|
/* populate debugfs */
|
brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read);
|
debugfs_create_file("reset", 0600, brcmf_debugfs_get_devdir(drvr), drvr,
|
&bus_reset_fops);
|
brcmf_feat_debugfs_create(drvr);
|
brcmf_proto_debugfs_create(drvr);
|
brcmf_bus_debugfs_create(bus_if);
|
|
return 0;
|
|
fail:
|
bphy_err(drvr, "failed: %d\n", ret);
|
if (drvr->config) {
|
brcmf_cfg80211_detach(drvr->config);
|
drvr->config = NULL;
|
}
|
brcmf_net_detach(ifp->ndev, false);
|
if (p2p_ifp)
|
brcmf_net_detach(p2p_ifp->ndev, false);
|
drvr->iflist[0] = NULL;
|
drvr->iflist[1] = NULL;
|
if (drvr->settings->ignore_probe_fail)
|
ret = 0;
|
|
return ret;
|
}
|
|
int brcmf_alloc(struct device *dev, struct brcmf_mp_device *settings)
|
{
|
struct wiphy *wiphy;
|
struct cfg80211_ops *ops;
|
struct brcmf_pub *drvr = NULL;
|
|
brcmf_dbg(TRACE, "Enter\n");
|
|
ops = brcmf_cfg80211_get_ops(settings);
|
if (!ops)
|
return -ENOMEM;
|
|
wiphy = wiphy_new(ops, sizeof(*drvr));
|
if (!wiphy) {
|
kfree(ops);
|
return -ENOMEM;
|
}
|
|
set_wiphy_dev(wiphy, dev);
|
drvr = wiphy_priv(wiphy);
|
drvr->wiphy = wiphy;
|
drvr->ops = ops;
|
drvr->bus_if = dev_get_drvdata(dev);
|
drvr->bus_if->drvr = drvr;
|
drvr->settings = settings;
|
|
return 0;
|
}
|
|
int brcmf_attach(struct device *dev)
|
{
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
struct brcmf_pub *drvr = bus_if->drvr;
|
int ret = 0;
|
int i;
|
|
brcmf_dbg(TRACE, "Enter\n");
|
|
for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
|
drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
|
|
mutex_init(&drvr->proto_block);
|
|
/* Link to bus module */
|
drvr->hdrlen = 0;
|
|
/* Attach and link in the protocol */
|
ret = brcmf_proto_attach(drvr);
|
if (ret != 0) {
|
bphy_err(drvr, "brcmf_prot_attach failed\n");
|
goto fail;
|
}
|
|
/* Attach to events important for core code */
|
brcmf_fweh_register(drvr, BRCMF_E_PSM_WATCHDOG,
|
brcmf_psm_watchdog_notify);
|
|
/* attach firmware event handler */
|
brcmf_fweh_attach(drvr);
|
|
ret = brcmf_bus_started(drvr, drvr->ops);
|
if (ret != 0) {
|
bphy_err(drvr, "dongle is not responding: err=%d\n", ret);
|
goto fail;
|
}
|
|
return 0;
|
|
fail:
|
brcmf_detach(dev);
|
|
return ret;
|
}
|
|
void brcmf_bus_add_txhdrlen(struct device *dev, uint len)
|
{
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
struct brcmf_pub *drvr = bus_if->drvr;
|
|
if (drvr) {
|
drvr->hdrlen += len;
|
}
|
}
|
|
void brcmf_dev_reset(struct device *dev)
|
{
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
struct brcmf_pub *drvr = bus_if->drvr;
|
|
if (drvr == NULL)
|
return;
|
|
if (drvr->iflist[0])
|
brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
|
}
|
|
void brcmf_dev_coredump(struct device *dev)
|
{
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
|
if (brcmf_debug_create_memdump(bus_if, NULL, 0) < 0)
|
brcmf_dbg(TRACE, "failed to create coredump\n");
|
}
|
|
void brcmf_fw_crashed(struct device *dev)
|
{
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
struct brcmf_pub *drvr = bus_if->drvr;
|
|
bphy_err(drvr, "Firmware has halted or crashed\n");
|
|
brcmf_dev_coredump(dev);
|
|
schedule_work(&drvr->bus_reset);
|
}
|
|
void brcmf_detach(struct device *dev)
|
{
|
s32 i;
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
struct brcmf_pub *drvr = bus_if->drvr;
|
|
brcmf_dbg(TRACE, "Enter\n");
|
|
if (drvr == NULL)
|
return;
|
|
#ifdef CONFIG_INET
|
unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
|
#endif
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
unregister_inet6addr_notifier(&drvr->inet6addr_notifier);
|
#endif
|
|
brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN);
|
/* make sure primary interface removed last */
|
for (i = BRCMF_MAX_IFS - 1; i > -1; i--) {
|
if (drvr->iflist[i])
|
brcmf_remove_interface(drvr->iflist[i], false);
|
}
|
brcmf_bus_stop(drvr->bus_if);
|
|
brcmf_fweh_detach(drvr);
|
brcmf_proto_detach(drvr);
|
|
if (drvr->mon_if) {
|
brcmf_net_detach(drvr->mon_if->ndev, false);
|
drvr->mon_if = NULL;
|
}
|
|
if (drvr->config) {
|
brcmf_p2p_detach(&drvr->config->p2p);
|
brcmf_cfg80211_detach(drvr->config);
|
drvr->config = NULL;
|
}
|
}
|
|
void brcmf_free(struct device *dev)
|
{
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
struct brcmf_pub *drvr = bus_if->drvr;
|
|
if (!drvr)
|
return;
|
|
bus_if->drvr = NULL;
|
|
kfree(drvr->ops);
|
|
wiphy_free(drvr->wiphy);
|
}
|
|
s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len)
|
{
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
struct brcmf_if *ifp = bus_if->drvr->iflist[0];
|
|
return brcmf_fil_iovar_data_set(ifp, name, data, len);
|
}
|
|
static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp)
|
{
|
return atomic_read(&ifp->pend_8021x_cnt);
|
}
|
|
int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp)
|
{
|
struct brcmf_pub *drvr = ifp->drvr;
|
int err;
|
|
err = wait_event_timeout(ifp->pend_8021x_wait,
|
!brcmf_get_pend_8021x_cnt(ifp),
|
MAX_WAIT_FOR_8021X_TX);
|
|
if (!err)
|
bphy_err(drvr, "Timed out waiting for no pending 802.1x packets\n");
|
|
return !err;
|
}
|
|
void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state)
|
{
|
struct brcmf_pub *drvr = bus->drvr;
|
struct net_device *ndev;
|
int ifidx;
|
|
brcmf_dbg(TRACE, "%d -> %d\n", bus->state, state);
|
|
if (!drvr) {
|
brcmf_dbg(INFO, "ignoring transition, bus not attached yet\n");
|
return;
|
}
|
|
bus->state = state;
|
|
if (state == BRCMF_BUS_UP) {
|
for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) {
|
if ((drvr->iflist[ifidx]) &&
|
(drvr->iflist[ifidx]->ndev)) {
|
ndev = drvr->iflist[ifidx]->ndev;
|
if (netif_queue_stopped(ndev))
|
netif_wake_queue(ndev);
|
}
|
}
|
}
|
}
|
|
int __init brcmf_core_init(void)
|
{
|
int err;
|
|
err = brcmf_sdio_register();
|
if (err)
|
return err;
|
|
err = brcmf_usb_register();
|
if (err)
|
goto error_usb_register;
|
|
err = brcmf_pcie_register();
|
if (err)
|
goto error_pcie_register;
|
return 0;
|
|
error_pcie_register:
|
brcmf_usb_exit();
|
error_usb_register:
|
brcmf_sdio_exit();
|
return err;
|
}
|
|
void __exit brcmf_core_exit(void)
|
{
|
brcmf_sdio_exit();
|
brcmf_usb_exit();
|
brcmf_pcie_exit();
|
}
|
