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-rw-r--r--package/kernel/mac80211/patches/349-0005-brcmfmac-screening-firmware-event-packet.patch297
1 files changed, 0 insertions, 297 deletions
diff --git a/package/kernel/mac80211/patches/349-0005-brcmfmac-screening-firmware-event-packet.patch b/package/kernel/mac80211/patches/349-0005-brcmfmac-screening-firmware-event-packet.patch
deleted file mode 100644
index 4d26404f51..0000000000
--- a/package/kernel/mac80211/patches/349-0005-brcmfmac-screening-firmware-event-packet.patch
+++ /dev/null
@@ -1,297 +0,0 @@
-From: Franky Lin <franky.lin@broadcom.com>
-Date: Mon, 11 Apr 2016 11:35:25 +0200
-Subject: [PATCH] brcmfmac: screening firmware event packet
-
-Firmware uses asynchronized events as a communication method to the
-host. The event packets are marked as ETH_P_LINK_CTL protocol type. For
-SDIO and PCIe bus, this kind of packets are delivered through virtual
-event channel not data channel. This patch adds a screening logic to
-make sure the event handler only processes the events coming from the
-correct channel.
-
-Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
-Signed-off-by: Franky Lin <franky.lin@broadcom.com>
-Signed-off-by: Arend van Spriel <arend@broadcom.com>
-Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
----
-
---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
-+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
-@@ -216,7 +216,9 @@ bool brcmf_c_prec_enq(struct device *dev
- int prec);
-
- /* Receive frame for delivery to OS. Callee disposes of rxp. */
--void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp);
-+void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp, bool handle_evnt);
-+/* Receive async event packet from firmware. Callee disposes of rxp. */
-+void brcmf_rx_event(struct device *dev, struct sk_buff *rxp);
-
- /* Indication from bus module regarding presence/insertion of dongle. */
- int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings);
---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
-+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
-@@ -311,16 +311,17 @@ void brcmf_txflowblock(struct device *de
- brcmf_fws_bus_blocked(drvr, state);
- }
-
--void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb)
-+void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb,
-+ bool handle_event)
- {
-- skb->dev = ifp->ndev;
-- skb->protocol = eth_type_trans(skb, skb->dev);
-+ skb->protocol = eth_type_trans(skb, ifp->ndev);
-
- if (skb->pkt_type == PACKET_MULTICAST)
- ifp->stats.multicast++;
-
- /* Process special event packets */
-- brcmf_fweh_process_skb(ifp->drvr, skb);
-+ if (handle_event)
-+ brcmf_fweh_process_skb(ifp->drvr, skb);
-
- if (!(ifp->ndev->flags & IFF_UP)) {
- brcmu_pkt_buf_free_skb(skb);
-@@ -381,7 +382,7 @@ static void brcmf_rxreorder_process_info
- /* validate flags and flow id */
- if (flags == 0xFF) {
- brcmf_err("invalid flags...so ignore this packet\n");
-- brcmf_netif_rx(ifp, pkt);
-+ brcmf_netif_rx(ifp, pkt, false);
- return;
- }
-
-@@ -393,7 +394,7 @@ static void brcmf_rxreorder_process_info
- if (rfi == NULL) {
- brcmf_dbg(INFO, "received flags to cleanup, but no flow (%d) yet\n",
- flow_id);
-- brcmf_netif_rx(ifp, pkt);
-+ brcmf_netif_rx(ifp, pkt, false);
- return;
- }
-
-@@ -418,7 +419,7 @@ static void brcmf_rxreorder_process_info
- rfi = kzalloc(buf_size, GFP_ATOMIC);
- if (rfi == NULL) {
- brcmf_err("failed to alloc buffer\n");
-- brcmf_netif_rx(ifp, pkt);
-+ brcmf_netif_rx(ifp, pkt, false);
- return;
- }
-
-@@ -532,11 +533,11 @@ static void brcmf_rxreorder_process_info
- netif_rx:
- skb_queue_walk_safe(&reorder_list, pkt, pnext) {
- __skb_unlink(pkt, &reorder_list);
-- brcmf_netif_rx(ifp, pkt);
-+ brcmf_netif_rx(ifp, pkt, false);
- }
- }
-
--void brcmf_rx_frame(struct device *dev, struct sk_buff *skb)
-+void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_evnt)
- {
- struct brcmf_if *ifp;
- struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-@@ -560,7 +561,32 @@ void brcmf_rx_frame(struct device *dev,
- if (rd->reorder)
- brcmf_rxreorder_process_info(ifp, rd->reorder, skb);
- else
-- brcmf_netif_rx(ifp, skb);
-+ brcmf_netif_rx(ifp, skb, handle_evnt);
-+}
-+
-+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;
-+ int ret;
-+
-+ brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
-+
-+ /* process and remove protocol-specific header */
-+ ret = brcmf_proto_hdrpull(drvr, true, skb, &ifp);
-+
-+ if (ret || !ifp || !ifp->ndev) {
-+ if (ret != -ENODATA && ifp)
-+ ifp->stats.rx_errors++;
-+ brcmu_pkt_buf_free_skb(skb);
-+ return;
-+ }
-+
-+ skb->protocol = eth_type_trans(skb, ifp->ndev);
-+
-+ brcmf_fweh_process_skb(ifp->drvr, skb);
-+ brcmu_pkt_buf_free_skb(skb);
- }
-
- void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success)
---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
-+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
-@@ -225,7 +225,8 @@ int brcmf_get_next_free_bsscfgidx(struct
- void brcmf_txflowblock_if(struct brcmf_if *ifp,
- enum brcmf_netif_stop_reason reason, bool state);
- void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success);
--void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb);
-+void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb,
-+ bool handle_event);
- void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on);
- int __init brcmf_core_init(void);
- void __exit brcmf_core_exit(void);
---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
-+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
-@@ -20,6 +20,7 @@
-
- #include <linux/types.h>
- #include <linux/netdevice.h>
-+#include <linux/etherdevice.h>
-
- #include <brcmu_utils.h>
- #include <brcmu_wifi.h>
-@@ -1075,28 +1076,13 @@ static void brcmf_msgbuf_rxbuf_event_pos
- }
-
-
--static void
--brcmf_msgbuf_rx_skb(struct brcmf_msgbuf *msgbuf, struct sk_buff *skb,
-- u8 ifidx)
--{
-- struct brcmf_if *ifp;
--
-- ifp = brcmf_get_ifp(msgbuf->drvr, ifidx);
-- if (!ifp || !ifp->ndev) {
-- brcmf_err("Received pkt for invalid ifidx %d\n", ifidx);
-- brcmu_pkt_buf_free_skb(skb);
-- return;
-- }
-- brcmf_netif_rx(ifp, skb);
--}
--
--
- static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf)
- {
- struct msgbuf_rx_event *event;
- u32 idx;
- u16 buflen;
- struct sk_buff *skb;
-+ struct brcmf_if *ifp;
-
- event = (struct msgbuf_rx_event *)buf;
- idx = le32_to_cpu(event->msg.request_id);
-@@ -1116,7 +1102,19 @@ static void brcmf_msgbuf_process_event(s
-
- skb_trim(skb, buflen);
-
-- brcmf_msgbuf_rx_skb(msgbuf, skb, event->msg.ifidx);
-+ ifp = brcmf_get_ifp(msgbuf->drvr, event->msg.ifidx);
-+ if (!ifp || !ifp->ndev) {
-+ brcmf_err("Received pkt for invalid ifidx %d\n",
-+ event->msg.ifidx);
-+ goto exit;
-+ }
-+
-+ skb->protocol = eth_type_trans(skb, ifp->ndev);
-+
-+ brcmf_fweh_process_skb(ifp->drvr, skb);
-+
-+exit:
-+ brcmu_pkt_buf_free_skb(skb);
- }
-
-
-@@ -1128,6 +1126,7 @@ brcmf_msgbuf_process_rx_complete(struct
- u16 data_offset;
- u16 buflen;
- u32 idx;
-+ struct brcmf_if *ifp;
-
- brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1);
-
-@@ -1148,7 +1147,14 @@ brcmf_msgbuf_process_rx_complete(struct
-
- skb_trim(skb, buflen);
-
-- brcmf_msgbuf_rx_skb(msgbuf, skb, rx_complete->msg.ifidx);
-+ ifp = brcmf_get_ifp(msgbuf->drvr, rx_complete->msg.ifidx);
-+ if (!ifp || !ifp->ndev) {
-+ brcmf_err("Received pkt for invalid ifidx %d\n",
-+ rx_complete->msg.ifidx);
-+ brcmu_pkt_buf_free_skb(skb);
-+ return;
-+ }
-+ brcmf_netif_rx(ifp, skb, false);
- }
-
-
---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
-+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
-@@ -1294,6 +1294,17 @@ static inline u8 brcmf_sdio_getdatoffset
- return (u8)((hdrvalue & SDPCM_DOFFSET_MASK) >> SDPCM_DOFFSET_SHIFT);
- }
-
-+static inline bool brcmf_sdio_fromevntchan(u8 *swheader)
-+{
-+ u32 hdrvalue;
-+ u8 ret;
-+
-+ hdrvalue = *(u32 *)swheader;
-+ ret = (u8)((hdrvalue & SDPCM_CHANNEL_MASK) >> SDPCM_CHANNEL_SHIFT);
-+
-+ return (ret == SDPCM_EVENT_CHANNEL);
-+}
-+
- static int brcmf_sdio_hdparse(struct brcmf_sdio *bus, u8 *header,
- struct brcmf_sdio_hdrinfo *rd,
- enum brcmf_sdio_frmtype type)
-@@ -1641,7 +1652,11 @@ static u8 brcmf_sdio_rxglom(struct brcmf
- pfirst->len, pfirst->next,
- pfirst->prev);
- skb_unlink(pfirst, &bus->glom);
-- brcmf_rx_frame(bus->sdiodev->dev, pfirst);
-+ if (brcmf_sdio_fromevntchan(pfirst->data))
-+ brcmf_rx_event(bus->sdiodev->dev, pfirst);
-+ else
-+ brcmf_rx_frame(bus->sdiodev->dev, pfirst,
-+ false);
- bus->sdcnt.rxglompkts++;
- }
-
-@@ -1967,18 +1982,19 @@ static uint brcmf_sdio_readframes(struct
- __skb_trim(pkt, rd->len);
- skb_pull(pkt, rd->dat_offset);
-
-+ if (pkt->len == 0)
-+ brcmu_pkt_buf_free_skb(pkt);
-+ else if (rd->channel == SDPCM_EVENT_CHANNEL)
-+ brcmf_rx_event(bus->sdiodev->dev, pkt);
-+ else
-+ brcmf_rx_frame(bus->sdiodev->dev, pkt,
-+ false);
-+
- /* prepare the descriptor for the next read */
- rd->len = rd->len_nxtfrm << 4;
- rd->len_nxtfrm = 0;
- /* treat all packet as event if we don't know */
- rd->channel = SDPCM_EVENT_CHANNEL;
--
-- if (pkt->len == 0) {
-- brcmu_pkt_buf_free_skb(pkt);
-- continue;
-- }
--
-- brcmf_rx_frame(bus->sdiodev->dev, pkt);
- }
-
- rxcount = maxframes - rxleft;
---- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
-+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
-@@ -514,7 +514,7 @@ static void brcmf_usb_rx_complete(struct
-
- if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
- skb_put(skb, urb->actual_length);
-- brcmf_rx_frame(devinfo->dev, skb);
-+ brcmf_rx_frame(devinfo->dev, skb, true);
- brcmf_usb_rx_refill(devinfo, req);
- } else {
- brcmu_pkt_buf_free_skb(skb);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-24 13:11:22 +0000