| /* |
| * Copyright (c) 2010 Broadcom Corporation |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/etherdevice.h> |
| #include <linux/module.h> |
| #include <net/cfg80211.h> |
| #include <net/rtnetlink.h> |
| #include <brcmu_utils.h> |
| #include <brcmu_wifi.h> |
| |
| #include "dhd.h" |
| #include "dhd_bus.h" |
| #include "dhd_proto.h" |
| #include "dhd_dbg.h" |
| #include "fwil_types.h" |
| #include "p2p.h" |
| #include "wl_cfg80211.h" |
| #include "fwil.h" |
| #include "fwsignal.h" |
| |
| MODULE_AUTHOR("Broadcom Corporation"); |
| MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver."); |
| MODULE_LICENSE("Dual BSD/GPL"); |
| |
| #define MAX_WAIT_FOR_8021X_TX 50 /* msecs */ |
| |
| /* AMPDU rx reordering definitions */ |
| #define BRCMF_RXREORDER_FLOWID_OFFSET 0 |
| #define BRCMF_RXREORDER_MAXIDX_OFFSET 2 |
| #define BRCMF_RXREORDER_FLAGS_OFFSET 4 |
| #define BRCMF_RXREORDER_CURIDX_OFFSET 6 |
| #define BRCMF_RXREORDER_EXPIDX_OFFSET 8 |
| |
| #define BRCMF_RXREORDER_DEL_FLOW 0x01 |
| #define BRCMF_RXREORDER_FLUSH_ALL 0x02 |
| #define BRCMF_RXREORDER_CURIDX_VALID 0x04 |
| #define BRCMF_RXREORDER_EXPIDX_VALID 0x08 |
| #define BRCMF_RXREORDER_NEW_HOLE 0x10 |
| |
| /* Error bits */ |
| int brcmf_msg_level; |
| module_param_named(debug, brcmf_msg_level, int, S_IRUSR | S_IWUSR); |
| MODULE_PARM_DESC(debug, "level of debug output"); |
| |
| /* P2P0 enable */ |
| static int brcmf_p2p_enable; |
| #ifdef CONFIG_BRCMDBG |
| module_param_named(p2pon, brcmf_p2p_enable, int, 0); |
| MODULE_PARM_DESC(p2pon, "enable p2p management functionality"); |
| #endif |
| |
| char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx) |
| { |
| if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) { |
| brcmf_err("ifidx %d out of range\n", ifidx); |
| return "<if_bad>"; |
| } |
| |
| if (drvr->iflist[ifidx] == NULL) { |
| brcmf_err("null i/f %d\n", ifidx); |
| return "<if_null>"; |
| } |
| |
| if (drvr->iflist[ifidx]->ndev) |
| return drvr->iflist[ifidx]->ndev->name; |
| |
| return "<if_none>"; |
| } |
| |
| static void _brcmf_set_multicast_list(struct work_struct *work) |
| { |
| struct brcmf_if *ifp; |
| struct net_device *ndev; |
| struct netdev_hw_addr *ha; |
| u32 cmd_value, cnt; |
| __le32 cnt_le; |
| char *buf, *bufp; |
| u32 buflen; |
| s32 err; |
| |
| ifp = container_of(work, struct brcmf_if, multicast_work); |
| |
| brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
| |
| ndev = ifp->ndev; |
| |
| /* Determine initial value of allmulti flag */ |
| cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false; |
| |
| /* Send down the multicast list first. */ |
| cnt = netdev_mc_count(ndev); |
| buflen = sizeof(cnt) + (cnt * ETH_ALEN); |
| buf = kmalloc(buflen, GFP_ATOMIC); |
| if (!buf) |
| return; |
| bufp = buf; |
| |
| cnt_le = cpu_to_le32(cnt); |
| memcpy(bufp, &cnt_le, sizeof(cnt_le)); |
| bufp += sizeof(cnt_le); |
| |
| netdev_for_each_mc_addr(ha, ndev) { |
| if (!cnt) |
| break; |
| memcpy(bufp, ha->addr, ETH_ALEN); |
| bufp += ETH_ALEN; |
| cnt--; |
| } |
| |
| err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen); |
| if (err < 0) { |
| brcmf_err("Setting mcast_list failed, %d\n", err); |
| cmd_value = cnt ? true : cmd_value; |
| } |
| |
| kfree(buf); |
| |
| /* |
| * 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... |
| */ |
| err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value); |
| if (err < 0) |
| brcmf_err("Setting allmulti failed, %d\n", err); |
| |
| /*Finally, pick up the PROMISC flag */ |
| cmd_value = (ndev->flags & IFF_PROMISC) ? true : false; |
| err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value); |
| if (err < 0) |
| brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n", |
| err); |
| } |
| |
| static void |
| _brcmf_set_mac_address(struct work_struct *work) |
| { |
| struct brcmf_if *ifp; |
| s32 err; |
| |
| ifp = container_of(work, struct brcmf_if, setmacaddr_work); |
| |
| brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
| |
| err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", ifp->mac_addr, |
| ETH_ALEN); |
| if (err < 0) { |
| brcmf_err("Setting cur_etheraddr failed, %d\n", err); |
| } else { |
| brcmf_dbg(TRACE, "MAC address updated to %pM\n", |
| ifp->mac_addr); |
| memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN); |
| } |
| } |
| |
| static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr) |
| { |
| struct brcmf_if *ifp = netdev_priv(ndev); |
| struct sockaddr *sa = (struct sockaddr *)addr; |
| |
| memcpy(&ifp->mac_addr, sa->sa_data, ETH_ALEN); |
| schedule_work(&ifp->setmacaddr_work); |
| return 0; |
| } |
| |
| static void brcmf_netdev_set_multicast_list(struct net_device *ndev) |
| { |
| struct brcmf_if *ifp = netdev_priv(ndev); |
| |
| schedule_work(&ifp->multicast_work); |
| } |
| |
| static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb, |
| struct net_device *ndev) |
| { |
| int ret; |
| struct brcmf_if *ifp = netdev_priv(ndev); |
| struct brcmf_pub *drvr = ifp->drvr; |
| struct ethhdr *eh; |
| |
| brcmf_dbg(DATA, "Enter, idx=%d\n", ifp->bssidx); |
| |
| /* Can the device send data? */ |
| if (drvr->bus_if->state != BRCMF_BUS_DATA) { |
| brcmf_err("xmit rejected state=%d\n", drvr->bus_if->state); |
| netif_stop_queue(ndev); |
| dev_kfree_skb(skb); |
| ret = -ENODEV; |
| goto done; |
| } |
| |
| if (!drvr->iflist[ifp->bssidx]) { |
| brcmf_err("bad ifidx %d\n", ifp->bssidx); |
| netif_stop_queue(ndev); |
| dev_kfree_skb(skb); |
| ret = -ENODEV; |
| goto done; |
| } |
| |
| /* Make sure there's enough room for any header */ |
| if (skb_headroom(skb) < drvr->hdrlen) { |
| struct sk_buff *skb2; |
| |
| brcmf_dbg(INFO, "%s: insufficient headroom\n", |
| brcmf_ifname(drvr, ifp->bssidx)); |
| drvr->bus_if->tx_realloc++; |
| skb2 = skb_realloc_headroom(skb, drvr->hdrlen); |
| dev_kfree_skb(skb); |
| skb = skb2; |
| if (skb == NULL) { |
| brcmf_err("%s: skb_realloc_headroom failed\n", |
| brcmf_ifname(drvr, ifp->bssidx)); |
| ret = -ENOMEM; |
| goto done; |
| } |
| } |
| |
| /* validate length for ether packet */ |
| if (skb->len < sizeof(*eh)) { |
| ret = -EINVAL; |
| dev_kfree_skb(skb); |
| goto done; |
| } |
| |
| ret = brcmf_fws_process_skb(ifp, skb); |
| |
| done: |
| if (ret) { |
| ifp->stats.tx_dropped++; |
| } else { |
| ifp->stats.tx_packets++; |
| ifp->stats.tx_bytes += skb->len; |
| } |
| |
| /* Return ok: we always eat the packet */ |
| return NETDEV_TX_OK; |
| } |
| |
| void brcmf_txflowblock_if(struct brcmf_if *ifp, |
| enum brcmf_netif_stop_reason reason, bool state) |
| { |
| unsigned long flags; |
| |
| if (!ifp || !ifp->ndev) |
| return; |
| |
| brcmf_dbg(TRACE, "enter: idx=%d stop=0x%X reason=%d state=%d\n", |
| ifp->bssidx, ifp->netif_stop, reason, state); |
| |
| spin_lock_irqsave(&ifp->netif_stop_lock, flags); |
| if (state) { |
| if (!ifp->netif_stop) |
| netif_stop_queue(ifp->ndev); |
| ifp->netif_stop |= reason; |
| } else { |
| ifp->netif_stop &= ~reason; |
| if (!ifp->netif_stop) |
| netif_wake_queue(ifp->ndev); |
| } |
| spin_unlock_irqrestore(&ifp->netif_stop_lock, flags); |
| } |
| |
| void brcmf_txflowblock(struct device *dev, bool state) |
| { |
| struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
| struct brcmf_pub *drvr = bus_if->drvr; |
| |
| brcmf_dbg(TRACE, "Enter\n"); |
| |
| brcmf_fws_bus_blocked(drvr, state); |
| } |
| |
| static void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb) |
| { |
| skb->dev = ifp->ndev; |
| skb->protocol = eth_type_trans(skb, skb->dev); |
| |
| if (skb->pkt_type == PACKET_MULTICAST) |
| ifp->stats.multicast++; |
| |
| /* Process special event packets */ |
| brcmf_fweh_process_skb(ifp->drvr, skb); |
| |
| if (!(ifp->ndev->flags & IFF_UP)) { |
| brcmu_pkt_buf_free_skb(skb); |
| return; |
| } |
| |
| ifp->stats.rx_bytes += skb->len; |
| ifp->stats.rx_packets++; |
| |
| brcmf_dbg(DATA, "rx proto=0x%X\n", ntohs(skb->protocol)); |
| if (in_interrupt()) |
| 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); |
| } |
| |
| static void brcmf_rxreorder_get_skb_list(struct brcmf_ampdu_rx_reorder *rfi, |
| u8 start, u8 end, |
| struct sk_buff_head *skb_list) |
| { |
| /* initialize return list */ |
| __skb_queue_head_init(skb_list); |
| |
| if (rfi->pend_pkts == 0) { |
| brcmf_dbg(INFO, "no packets in reorder queue\n"); |
| return; |
| } |
| |
| do { |
| if (rfi->pktslots[start]) { |
| __skb_queue_tail(skb_list, rfi->pktslots[start]); |
| rfi->pktslots[start] = NULL; |
| } |
| start++; |
| if (start > rfi->max_idx) |
| start = 0; |
| } while (start != end); |
| rfi->pend_pkts -= skb_queue_len(skb_list); |
| } |
| |
| static void brcmf_rxreorder_process_info(struct brcmf_if *ifp, u8 *reorder_data, |
| struct sk_buff *pkt) |
| { |
| u8 flow_id, max_idx, cur_idx, exp_idx, end_idx; |
| struct brcmf_ampdu_rx_reorder *rfi; |
| struct sk_buff_head reorder_list; |
| struct sk_buff *pnext; |
| u8 flags; |
| u32 buf_size; |
| |
| flow_id = reorder_data[BRCMF_RXREORDER_FLOWID_OFFSET]; |
| flags = reorder_data[BRCMF_RXREORDER_FLAGS_OFFSET]; |
| |
| /* validate flags and flow id */ |
| if (flags == 0xFF) { |
| brcmf_err("invalid flags...so ignore this packet\n"); |
| brcmf_netif_rx(ifp, pkt); |
| return; |
| } |
| |
| rfi = ifp->drvr->reorder_flows[flow_id]; |
| if (flags & BRCMF_RXREORDER_DEL_FLOW) { |
| brcmf_dbg(INFO, "flow-%d: delete\n", |
| flow_id); |
| |
| if (rfi == NULL) { |
| brcmf_dbg(INFO, "received flags to cleanup, but no flow (%d) yet\n", |
| flow_id); |
| brcmf_netif_rx(ifp, pkt); |
| return; |
| } |
| |
| brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, rfi->exp_idx, |
| &reorder_list); |
| /* add the last packet */ |
| __skb_queue_tail(&reorder_list, pkt); |
| kfree(rfi); |
| ifp->drvr->reorder_flows[flow_id] = NULL; |
| goto netif_rx; |
| } |
| /* from here on we need a flow reorder instance */ |
| if (rfi == NULL) { |
| buf_size = sizeof(*rfi); |
| max_idx = reorder_data[BRCMF_RXREORDER_MAXIDX_OFFSET]; |
| |
| buf_size += (max_idx + 1) * sizeof(pkt); |
| |
| /* allocate space for flow reorder info */ |
| brcmf_dbg(INFO, "flow-%d: start, maxidx %d\n", |
| flow_id, max_idx); |
| rfi = kzalloc(buf_size, GFP_ATOMIC); |
| if (rfi == NULL) { |
| brcmf_err("failed to alloc buffer\n"); |
| brcmf_netif_rx(ifp, pkt); |
| return; |
| } |
| |
| ifp->drvr->reorder_flows[flow_id] = rfi; |
| rfi->pktslots = (struct sk_buff **)(rfi+1); |
| rfi->max_idx = max_idx; |
| } |
| if (flags & BRCMF_RXREORDER_NEW_HOLE) { |
| if (rfi->pend_pkts) { |
| brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, |
| rfi->exp_idx, |
| &reorder_list); |
| WARN_ON(rfi->pend_pkts); |
| } else { |
| __skb_queue_head_init(&reorder_list); |
| } |
| rfi->cur_idx = reorder_data[BRCMF_RXREORDER_CURIDX_OFFSET]; |
| rfi->exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET]; |
| rfi->max_idx = reorder_data[BRCMF_RXREORDER_MAXIDX_OFFSET]; |
| rfi->pktslots[rfi->cur_idx] = pkt; |
| rfi->pend_pkts++; |
| brcmf_dbg(DATA, "flow-%d: new hole %d (%d), pending %d\n", |
| flow_id, rfi->cur_idx, rfi->exp_idx, rfi->pend_pkts); |
| } else if (flags & BRCMF_RXREORDER_CURIDX_VALID) { |
| cur_idx = reorder_data[BRCMF_RXREORDER_CURIDX_OFFSET]; |
| exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET]; |
| |
| if ((exp_idx == rfi->exp_idx) && (cur_idx != rfi->exp_idx)) { |
| /* still in the current hole */ |
| /* enqueue the current on the buffer chain */ |
| if (rfi->pktslots[cur_idx] != NULL) { |
| brcmf_dbg(INFO, "HOLE: ERROR buffer pending..free it\n"); |
| brcmu_pkt_buf_free_skb(rfi->pktslots[cur_idx]); |
| rfi->pktslots[cur_idx] = NULL; |
| } |
| rfi->pktslots[cur_idx] = pkt; |
| rfi->pend_pkts++; |
| rfi->cur_idx = cur_idx; |
| brcmf_dbg(DATA, "flow-%d: store pkt %d (%d), pending %d\n", |
| flow_id, cur_idx, exp_idx, rfi->pend_pkts); |
| |
| /* can return now as there is no reorder |
| * list to process. |
| */ |
| return; |
| } |
| if (rfi->exp_idx == cur_idx) { |
| if (rfi->pktslots[cur_idx] != NULL) { |
| brcmf_dbg(INFO, "error buffer pending..free it\n"); |
| brcmu_pkt_buf_free_skb(rfi->pktslots[cur_idx]); |
| rfi->pktslots[cur_idx] = NULL; |
| } |
| rfi->pktslots[cur_idx] = pkt; |
| rfi->pend_pkts++; |
| |
| /* got the expected one. flush from current to expected |
| * and update expected |
| */ |
| brcmf_dbg(DATA, "flow-%d: expected %d (%d), pending %d\n", |
| flow_id, cur_idx, exp_idx, rfi->pend_pkts); |
| |
| rfi->cur_idx = cur_idx; |
| rfi->exp_idx = exp_idx; |
| |
| brcmf_rxreorder_get_skb_list(rfi, cur_idx, exp_idx, |
| &reorder_list); |
| brcmf_dbg(DATA, "flow-%d: freeing buffers %d, pending %d\n", |
| flow_id, skb_queue_len(&reorder_list), |
| rfi->pend_pkts); |
| } else { |
| u8 end_idx; |
| |
| brcmf_dbg(DATA, "flow-%d (0x%x): both moved, old %d/%d, new %d/%d\n", |
| flow_id, flags, rfi->cur_idx, rfi->exp_idx, |
| cur_idx, exp_idx); |
| if (flags & BRCMF_RXREORDER_FLUSH_ALL) |
| end_idx = rfi->exp_idx; |
| else |
| end_idx = exp_idx; |
| |
| /* flush pkts first */ |
| brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, end_idx, |
| &reorder_list); |
| |
| if (exp_idx == ((cur_idx + 1) % (rfi->max_idx + 1))) { |
| __skb_queue_tail(&reorder_list, pkt); |
| } else { |
| rfi->pktslots[cur_idx] = pkt; |
| rfi->pend_pkts++; |
| } |
| rfi->exp_idx = exp_idx; |
| rfi->cur_idx = cur_idx; |
| } |
| } else { |
| /* explicity window move updating the expected index */ |
| exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET]; |
| |
| brcmf_dbg(DATA, "flow-%d (0x%x): change expected: %d -> %d\n", |
| flow_id, flags, rfi->exp_idx, exp_idx); |
| if (flags & BRCMF_RXREORDER_FLUSH_ALL) |
| end_idx = rfi->exp_idx; |
| else |
| end_idx = exp_idx; |
| |
| brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, end_idx, |
| &reorder_list); |
| __skb_queue_tail(&reorder_list, pkt); |
| /* set the new expected idx */ |
| rfi->exp_idx = exp_idx; |
| } |
| netif_rx: |
| skb_queue_walk_safe(&reorder_list, pkt, pnext) { |
| __skb_unlink(pkt, &reorder_list); |
| brcmf_netif_rx(ifp, pkt); |
| } |
| } |
| |
| void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list) |
| { |
| struct sk_buff *skb, *pnext; |
| struct brcmf_if *ifp; |
| struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
| struct brcmf_pub *drvr = bus_if->drvr; |
| struct brcmf_skb_reorder_data *rd; |
| u8 ifidx; |
| int ret; |
| |
| brcmf_dbg(DATA, "Enter: %s: count=%u\n", dev_name(dev), |
| skb_queue_len(skb_list)); |
| |
| skb_queue_walk_safe(skb_list, skb, pnext) { |
| skb_unlink(skb, skb_list); |
| |
| /* process and remove protocol-specific header */ |
| ret = brcmf_proto_hdrpull(drvr, true, &ifidx, skb); |
| ifp = drvr->iflist[ifidx]; |
| |
| if (ret || !ifp || !ifp->ndev) { |
| if ((ret != -ENODATA) && ifp) |
| ifp->stats.rx_errors++; |
| brcmu_pkt_buf_free_skb(skb); |
| continue; |
| } |
| |
| rd = (struct brcmf_skb_reorder_data *)skb->cb; |
| if (rd->reorder) |
| brcmf_rxreorder_process_info(ifp, rd->reorder, skb); |
| else |
| brcmf_netif_rx(ifp, skb); |
| } |
| } |
| |
| void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp, |
| bool success) |
| { |
| struct brcmf_if *ifp; |
| struct ethhdr *eh; |
| u8 ifidx; |
| u16 type; |
| int res; |
| |
| res = brcmf_proto_hdrpull(drvr, false, &ifidx, txp); |
| |
| ifp = drvr->iflist[ifidx]; |
| if (!ifp) |
| goto done; |
| |
| if (res == 0) { |
| 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->stats.tx_errors++; |
| done: |
| brcmu_pkt_buf_free_skb(txp); |
| } |
| |
| void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success) |
| { |
| struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
| struct brcmf_pub *drvr = bus_if->drvr; |
| |
| /* await txstatus signal for firmware if active */ |
| if (brcmf_fws_fc_active(drvr->fws)) { |
| if (!success) |
| brcmf_fws_bustxfail(drvr->fws, txp); |
| } else { |
| brcmf_txfinalize(drvr, txp, success); |
| } |
| } |
| |
| static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev) |
| { |
| struct brcmf_if *ifp = netdev_priv(ndev); |
| |
| brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
| |
| return &ifp->stats; |
| } |
| |
| /* |
| * Set current toe component enables in toe_ol iovar, |
| * and set toe global enable iovar |
| */ |
| static int brcmf_toe_set(struct brcmf_if *ifp, u32 toe_ol) |
| { |
| s32 err; |
| |
| err = brcmf_fil_iovar_int_set(ifp, "toe_ol", toe_ol); |
| if (err < 0) { |
| brcmf_err("Setting toe_ol failed, %d\n", err); |
| return err; |
| } |
| |
| err = brcmf_fil_iovar_int_set(ifp, "toe", (toe_ol != 0)); |
| if (err < 0) |
| brcmf_err("Setting toe failed, %d\n", err); |
| |
| return err; |
| |
| } |
| |
| 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; |
| |
| strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); |
| snprintf(info->version, sizeof(info->version), "%lu", |
| drvr->drv_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_ethtool(struct brcmf_if *ifp, void __user *uaddr) |
| { |
| struct brcmf_pub *drvr = ifp->drvr; |
| struct ethtool_drvinfo info; |
| char drvname[sizeof(info.driver)]; |
| u32 cmd; |
| struct ethtool_value edata; |
| u32 toe_cmpnt, csum_dir; |
| int ret; |
| |
| brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
| |
| /* all ethtool calls start with a cmd word */ |
| if (copy_from_user(&cmd, uaddr, sizeof(u32))) |
| return -EFAULT; |
| |
| switch (cmd) { |
| case ETHTOOL_GDRVINFO: |
| /* Copy out any request driver name */ |
| if (copy_from_user(&info, uaddr, sizeof(info))) |
| return -EFAULT; |
| strncpy(drvname, info.driver, sizeof(info.driver)); |
| drvname[sizeof(info.driver) - 1] = '\0'; |
| |
| /* clear struct for return */ |
| memset(&info, 0, sizeof(info)); |
| info.cmd = cmd; |
| |
| /* if requested, identify ourselves */ |
| if (strcmp(drvname, "?dhd") == 0) { |
| sprintf(info.driver, "dhd"); |
| strcpy(info.version, BRCMF_VERSION_STR); |
| } |
| /* report dongle driver type */ |
| else |
| sprintf(info.driver, "wl"); |
| |
| sprintf(info.version, "%lu", drvr->drv_version); |
| if (copy_to_user(uaddr, &info, sizeof(info))) |
| return -EFAULT; |
| brcmf_dbg(TRACE, "given %*s, returning %s\n", |
| (int)sizeof(drvname), drvname, info.driver); |
| break; |
| |
| /* Get toe offload components from dongle */ |
| case ETHTOOL_GRXCSUM: |
| case ETHTOOL_GTXCSUM: |
| ret = brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_cmpnt); |
| if (ret < 0) |
| return ret; |
| |
| csum_dir = |
| (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL; |
| |
| edata.cmd = cmd; |
| edata.data = (toe_cmpnt & csum_dir) ? 1 : 0; |
| |
| if (copy_to_user(uaddr, &edata, sizeof(edata))) |
| return -EFAULT; |
| break; |
| |
| /* Set toe offload components in dongle */ |
| case ETHTOOL_SRXCSUM: |
| case ETHTOOL_STXCSUM: |
| if (copy_from_user(&edata, uaddr, sizeof(edata))) |
| return -EFAULT; |
| |
| /* Read the current settings, update and write back */ |
| ret = brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_cmpnt); |
| if (ret < 0) |
| return ret; |
| |
| csum_dir = |
| (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL; |
| |
| if (edata.data != 0) |
| toe_cmpnt |= csum_dir; |
| else |
| toe_cmpnt &= ~csum_dir; |
| |
| ret = brcmf_toe_set(ifp, toe_cmpnt); |
| if (ret < 0) |
| return ret; |
| |
| /* If setting TX checksum mode, tell Linux the new mode */ |
| if (cmd == ETHTOOL_STXCSUM) { |
| if (edata.data) |
| ifp->ndev->features |= NETIF_F_IP_CSUM; |
| else |
| ifp->ndev->features &= ~NETIF_F_IP_CSUM; |
| } |
| |
| break; |
| |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int brcmf_netdev_ioctl_entry(struct net_device *ndev, struct ifreq *ifr, |
| int cmd) |
| { |
| struct brcmf_if *ifp = netdev_priv(ndev); |
| struct brcmf_pub *drvr = ifp->drvr; |
| |
| brcmf_dbg(TRACE, "Enter, idx=%d, cmd=0x%04x\n", ifp->bssidx, cmd); |
| |
| if (!drvr->iflist[ifp->bssidx]) |
| return -1; |
| |
| if (cmd == SIOCETHTOOL) |
| return brcmf_ethtool(ifp, ifr->ifr_data); |
| |
| return -EOPNOTSUPP; |
| } |
| |
| static int brcmf_netdev_stop(struct net_device *ndev) |
| { |
| struct brcmf_if *ifp = netdev_priv(ndev); |
| |
| brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
| |
| brcmf_cfg80211_down(ndev); |
| |
| /* Set state and stop OS transmissions */ |
| netif_stop_queue(ndev); |
| |
| 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; |
| s32 ret = 0; |
| |
| brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx); |
| |
| /* If bus is not ready, can't continue */ |
| if (bus_if->state != BRCMF_BUS_DATA) { |
| brcmf_err("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; |
| |
| /* Allow transmit calls */ |
| netif_start_queue(ndev); |
| if (brcmf_cfg80211_up(ndev)) { |
| brcmf_err("failed to bring up cfg80211\n"); |
| return -1; |
| } |
| |
| return ret; |
| } |
| |
| static const struct net_device_ops brcmf_netdev_ops_pri = { |
| .ndo_open = brcmf_netdev_open, |
| .ndo_stop = brcmf_netdev_stop, |
| .ndo_get_stats = brcmf_netdev_get_stats, |
| .ndo_do_ioctl = brcmf_netdev_ioctl_entry, |
| .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, idx=%d mac=%pM\n", ifp->bssidx, |
| ifp->mac_addr); |
| ndev = ifp->ndev; |
| |
| /* set appropriate operations */ |
| ndev->netdev_ops = &brcmf_netdev_ops_pri; |
| |
| ndev->hard_header_len += drvr->hdrlen; |
| ndev->ethtool_ops = &brcmf_ethtool_ops; |
| |
| drvr->rxsz = ndev->mtu + ndev->hard_header_len + |
| drvr->hdrlen; |
| |
| /* set the mac address */ |
| memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN); |
| |
| INIT_WORK(&ifp->setmacaddr_work, _brcmf_set_mac_address); |
| INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list); |
| |
| if (rtnl_locked) |
| err = register_netdevice(ndev); |
| else |
| err = register_netdev(ndev); |
| if (err != 0) { |
| brcmf_err("couldn't register the net device\n"); |
| goto fail; |
| } |
| |
| brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name); |
| |
| ndev->destructor = free_netdev; |
| return 0; |
| |
| fail: |
| drvr->iflist[ifp->bssidx] = NULL; |
| ndev->netdev_ops = NULL; |
| free_netdev(ndev); |
| return -EBADE; |
| } |
| |
| 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 int brcmf_net_p2p_do_ioctl(struct net_device *ndev, |
| struct ifreq *ifr, int cmd) |
| { |
| brcmf_dbg(TRACE, "Enter\n"); |
| return 0; |
| } |
| |
| 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_do_ioctl = brcmf_net_p2p_do_ioctl, |
| .ndo_start_xmit = brcmf_net_p2p_start_xmit |
| }; |
| |
| static int brcmf_net_p2p_attach(struct brcmf_if *ifp) |
| { |
| struct net_device *ndev; |
| |
| brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx, |
| 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) { |
| brcmf_err("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->bssidx] = NULL; |
| ndev->netdev_ops = NULL; |
| free_netdev(ndev); |
| return -EBADE; |
| } |
| |
| struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx, |
| char *name, u8 *mac_addr) |
| { |
| struct brcmf_if *ifp; |
| struct net_device *ndev; |
| |
| brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifidx); |
| |
| ifp = drvr->iflist[bssidx]; |
| /* |
| * Delete the existing interface before overwriting it |
| * in case we missed the BRCMF_E_IF_DEL event. |
| */ |
| if (ifp) { |
| brcmf_err("ERROR: netdev:%s already exists\n", |
| ifp->ndev->name); |
| if (ifidx) { |
| netif_stop_queue(ifp->ndev); |
| unregister_netdev(ifp->ndev); |
| free_netdev(ifp->ndev); |
| drvr->iflist[bssidx] = NULL; |
| } else { |
| brcmf_err("ignore IF event\n"); |
| return ERR_PTR(-EINVAL); |
| } |
| } |
| |
| if (!brcmf_p2p_enable && bssidx == 1) { |
| /* 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), name, ether_setup); |
| if (!ndev) |
| return ERR_PTR(-ENOMEM); |
| |
| ifp = netdev_priv(ndev); |
| ifp->ndev = ndev; |
| } |
| |
| ifp->drvr = drvr; |
| drvr->iflist[bssidx] = ifp; |
| ifp->ifidx = ifidx; |
| ifp->bssidx = bssidx; |
| |
| 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; |
| } |
| |
| void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx) |
| { |
| struct brcmf_if *ifp; |
| |
| ifp = drvr->iflist[bssidx]; |
| drvr->iflist[bssidx] = NULL; |
| if (!ifp) { |
| brcmf_err("Null interface, idx=%d\n", bssidx); |
| return; |
| } |
| brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifp->ifidx); |
| if (ifp->ndev) { |
| if (bssidx == 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->setmacaddr_work); |
| cancel_work_sync(&ifp->multicast_work); |
| } |
| /* unregister will take care of freeing it */ |
| unregister_netdev(ifp->ndev); |
| if (bssidx == 0) |
| brcmf_cfg80211_detach(drvr->config); |
| } else { |
| kfree(ifp); |
| } |
| } |
| |
| int brcmf_attach(uint bus_hdrlen, struct device *dev) |
| { |
| struct brcmf_pub *drvr = NULL; |
| int ret = 0; |
| |
| brcmf_dbg(TRACE, "Enter\n"); |
| |
| /* Allocate primary brcmf_info */ |
| drvr = kzalloc(sizeof(struct brcmf_pub), GFP_ATOMIC); |
| if (!drvr) |
| return -ENOMEM; |
| |
| mutex_init(&drvr->proto_block); |
| |
| /* Link to bus module */ |
| drvr->hdrlen = bus_hdrlen; |
| drvr->bus_if = dev_get_drvdata(dev); |
| drvr->bus_if->drvr = drvr; |
| |
| /* create device debugfs folder */ |
| brcmf_debugfs_attach(drvr); |
| |
| /* Attach and link in the protocol */ |
| ret = brcmf_proto_attach(drvr); |
| if (ret != 0) { |
| brcmf_err("brcmf_prot_attach failed\n"); |
| goto fail; |
| } |
| |
| /* attach firmware event handler */ |
| brcmf_fweh_attach(drvr); |
| |
| INIT_LIST_HEAD(&drvr->bus_if->dcmd_list); |
| |
| return ret; |
| |
| fail: |
| brcmf_detach(dev); |
| |
| return ret; |
| } |
| |
| int brcmf_bus_start(struct device *dev) |
| { |
| int ret = -1; |
| struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
| struct brcmf_pub *drvr = bus_if->drvr; |
| struct brcmf_if *ifp; |
| struct brcmf_if *p2p_ifp; |
| |
| brcmf_dbg(TRACE, "\n"); |
| |
| /* Bring up the bus */ |
| ret = brcmf_bus_init(bus_if); |
| if (ret != 0) { |
| brcmf_err("brcmf_sdbrcm_bus_init failed %d\n", ret); |
| return ret; |
| } |
| |
| /* add primary networking interface */ |
| ifp = brcmf_add_if(drvr, 0, 0, "wlan%d", NULL); |
| if (IS_ERR(ifp)) |
| return PTR_ERR(ifp); |
| |
| if (brcmf_p2p_enable) |
| p2p_ifp = brcmf_add_if(drvr, 1, 0, "p2p%d", NULL); |
| else |
| p2p_ifp = NULL; |
| if (IS_ERR(p2p_ifp)) |
| p2p_ifp = NULL; |
| |
| /* signal bus ready */ |
| bus_if->state = BRCMF_BUS_DATA; |
| |
| /* Bus is ready, do any initialization */ |
| ret = brcmf_c_preinit_dcmds(ifp); |
| if (ret < 0) |
| goto fail; |
| |
| ret = brcmf_fws_init(drvr); |
| if (ret < 0) |
| goto fail; |
| |
| brcmf_fws_add_interface(ifp); |
| |
| drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev); |
| if (drvr->config == NULL) { |
| ret = -ENOMEM; |
| goto fail; |
| } |
| |
| ret = brcmf_fweh_activate_events(ifp); |
| if (ret < 0) |
| goto fail; |
| |
| ret = brcmf_net_attach(ifp, false); |
| fail: |
| if (ret < 0) { |
| brcmf_err("failed: %d\n", ret); |
| if (drvr->config) |
| brcmf_cfg80211_detach(drvr->config); |
| if (drvr->fws) { |
| brcmf_fws_del_interface(ifp); |
| brcmf_fws_deinit(drvr); |
| } |
| if (drvr->iflist[0]) { |
| free_netdev(ifp->ndev); |
| drvr->iflist[0] = NULL; |
| } |
| if (p2p_ifp) { |
| free_netdev(p2p_ifp->ndev); |
| drvr->iflist[1] = NULL; |
| } |
| return ret; |
| } |
| if ((brcmf_p2p_enable) && (p2p_ifp)) |
| if (brcmf_net_p2p_attach(p2p_ifp) < 0) |
| brcmf_p2p_enable = 0; |
| |
| return 0; |
| } |
| |
| static void brcmf_bus_detach(struct brcmf_pub *drvr) |
| { |
| brcmf_dbg(TRACE, "Enter\n"); |
| |
| if (drvr) { |
| /* Stop the protocol module */ |
| brcmf_proto_stop(drvr); |
| |
| /* Stop the bus module */ |
| brcmf_bus_stop(drvr->bus_if); |
| } |
| } |
| |
| 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_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; |
| |
| /* stop firmware event handling */ |
| brcmf_fweh_detach(drvr); |
| |
| /* make sure primary interface removed last */ |
| for (i = BRCMF_MAX_IFS-1; i > -1; i--) |
| if (drvr->iflist[i]) { |
| brcmf_fws_del_interface(drvr->iflist[i]); |
| brcmf_del_if(drvr, i); |
| } |
| |
| brcmf_bus_detach(drvr); |
| |
| if (drvr->prot) |
| brcmf_proto_detach(drvr); |
| |
| brcmf_fws_deinit(drvr); |
| |
| brcmf_debugfs_detach(drvr); |
| bus_if->drvr = NULL; |
| kfree(drvr); |
| } |
| |
| static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp) |
| { |
| return atomic_read(&ifp->pend_8021x_cnt); |
| } |
| |
| int brcmf_netdev_wait_pend8021x(struct net_device *ndev) |
| { |
| struct brcmf_if *ifp = netdev_priv(ndev); |
| int err; |
| |
| err = wait_event_timeout(ifp->pend_8021x_wait, |
| !brcmf_get_pend_8021x_cnt(ifp), |
| msecs_to_jiffies(MAX_WAIT_FOR_8021X_TX)); |
| |
| WARN_ON(!err); |
| |
| return !err; |
| } |
| |
| /* |
| * return chip id and rev of the device encoded in u32. |
| */ |
| u32 brcmf_get_chip_info(struct brcmf_if *ifp) |
| { |
| struct brcmf_bus *bus = ifp->drvr->bus_if; |
| |
| return bus->chip << 4 | bus->chiprev; |
| } |
| |
| static void brcmf_driver_init(struct work_struct *work) |
| { |
| brcmf_debugfs_init(); |
| |
| #ifdef CONFIG_BRCMFMAC_SDIO |
| brcmf_sdio_init(); |
| #endif |
| #ifdef CONFIG_BRCMFMAC_USB |
| brcmf_usb_init(); |
| #endif |
| } |
| static DECLARE_WORK(brcmf_driver_work, brcmf_driver_init); |
| |
| static int __init brcmfmac_module_init(void) |
| { |
| if (!schedule_work(&brcmf_driver_work)) |
| return -EBUSY; |
| |
| return 0; |
| } |
| |
| static void __exit brcmfmac_module_exit(void) |
| { |
| cancel_work_sync(&brcmf_driver_work); |
| |
| #ifdef CONFIG_BRCMFMAC_SDIO |
| brcmf_sdio_exit(); |
| #endif |
| #ifdef CONFIG_BRCMFMAC_USB |
| brcmf_usb_exit(); |
| #endif |
| brcmf_debugfs_exit(); |
| } |
| |
| module_init(brcmfmac_module_init); |
| module_exit(brcmfmac_module_exit); |