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So far support for multiple interface was somehow broken in brcmfmac. Driver couldn't correctly match firmware and system interfaces resulting in not working APs and WARNINGs. This pending patches fixes that :) Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 46734
139 lines
4.7 KiB
Diff
139 lines
4.7 KiB
Diff
From: Arend van Spriel <arend@broadcom.com>
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Date: Wed, 26 Aug 2015 22:14:53 +0200
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Subject: [PATCH] brcmfmac: consolidate ifp lookup in driver core
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In rx path the firmware provide an interface index which is used to
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map to a struct brcmf_if instance. However, this involves some trick
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that is done in two places. This is changed by having driver core
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providing brcmf_get_ifp() function.
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Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
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Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
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Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
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Signed-off-by: Arend van Spriel <arend@broadcom.com>
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---
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--- a/drivers/net/wireless/brcm80211/brcmfmac/bcdc.c
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+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcdc.c
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@@ -276,6 +276,7 @@ brcmf_proto_bcdc_hdrpull(struct brcmf_pu
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struct sk_buff *pktbuf)
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{
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struct brcmf_proto_bcdc_header *h;
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+ struct brcmf_if *ifp;
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brcmf_dbg(BCDC, "Enter\n");
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@@ -289,30 +290,21 @@ brcmf_proto_bcdc_hdrpull(struct brcmf_pu
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trace_brcmf_bcdchdr(pktbuf->data);
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h = (struct brcmf_proto_bcdc_header *)(pktbuf->data);
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- *ifidx = BCDC_GET_IF_IDX(h);
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- if (*ifidx >= BRCMF_MAX_IFS) {
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- brcmf_err("rx data ifnum out of range (%d)\n", *ifidx);
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+ ifp = brcmf_get_ifp(drvr, BCDC_GET_IF_IDX(h));
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+ if (IS_ERR_OR_NULL(ifp)) {
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+ brcmf_dbg(INFO, "no matching ifp found\n");
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return -EBADE;
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}
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- /* The ifidx is the idx to map to matching netdev/ifp. When receiving
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- * events this is easy because it contains the bssidx which maps
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- * 1-on-1 to the netdev/ifp. But for data frames the ifidx is rcvd.
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- * bssidx 1 is used for p2p0 and no data can be received or
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- * transmitted on it. Therefor bssidx is ifidx + 1 if ifidx > 0
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- */
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- if (*ifidx)
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- (*ifidx)++;
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-
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if (((h->flags & BCDC_FLAG_VER_MASK) >> BCDC_FLAG_VER_SHIFT) !=
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BCDC_PROTO_VER) {
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brcmf_err("%s: non-BCDC packet received, flags 0x%x\n",
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- brcmf_ifname(drvr, *ifidx), h->flags);
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+ brcmf_ifname(drvr, ifp->ifidx), h->flags);
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return -EBADE;
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}
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if (h->flags & BCDC_FLAG_SUM_GOOD) {
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brcmf_dbg(BCDC, "%s: BDC rcv, good checksum, flags 0x%x\n",
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- brcmf_ifname(drvr, *ifidx), h->flags);
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+ brcmf_ifname(drvr, ifp->ifidx), h->flags);
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pktbuf->ip_summed = CHECKSUM_UNNECESSARY;
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}
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@@ -320,12 +312,15 @@ brcmf_proto_bcdc_hdrpull(struct brcmf_pu
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skb_pull(pktbuf, BCDC_HEADER_LEN);
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if (do_fws)
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- brcmf_fws_hdrpull(drvr, *ifidx, h->data_offset << 2, pktbuf);
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+ brcmf_fws_hdrpull(drvr, ifp->ifidx, h->data_offset << 2,
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+ pktbuf);
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else
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skb_pull(pktbuf, h->data_offset << 2);
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if (pktbuf->len == 0)
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return -ENODATA;
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+
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+ *ifidx = ifp->ifidx;
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return 0;
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}
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--- a/drivers/net/wireless/brcm80211/brcmfmac/core.c
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+++ b/drivers/net/wireless/brcm80211/brcmfmac/core.c
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@@ -83,6 +83,25 @@ char *brcmf_ifname(struct brcmf_pub *drv
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return "<if_none>";
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}
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+struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx)
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+{
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+ if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
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+ brcmf_err("ifidx %d out of range\n", ifidx);
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+ return ERR_PTR(-ERANGE);
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+ }
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+
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+ /* The ifidx is the idx to map to matching netdev/ifp. When receiving
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+ * events this is easy because it contains the bssidx which maps
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+ * 1-on-1 to the netdev/ifp. But for data frames the ifidx is rcvd.
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+ * bssidx 1 is used for p2p0 and no data can be received or
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+ * transmitted on it. Therefor bssidx is ifidx + 1 if ifidx > 0
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+ */
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+ if (ifidx)
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+ ifidx++;
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+
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+ return drvr->iflist[ifidx];
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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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{
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struct brcmf_if *ifp;
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--- a/drivers/net/wireless/brcm80211/brcmfmac/core.h
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+++ b/drivers/net/wireless/brcm80211/brcmfmac/core.h
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@@ -202,7 +202,7 @@ int brcmf_netdev_wait_pend8021x(struct b
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/* Return pointer to interface name */
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char *brcmf_ifname(struct brcmf_pub *drvr, int idx);
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-
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+struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx);
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int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
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struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
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char *name, u8 *mac_addr);
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--- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
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+++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
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@@ -1081,16 +1081,8 @@ brcmf_msgbuf_rx_skb(struct brcmf_msgbuf
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{
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struct brcmf_if *ifp;
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- /* The ifidx is the idx to map to matching netdev/ifp. When receiving
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- * events this is easy because it contains the bssidx which maps
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- * 1-on-1 to the netdev/ifp. But for data frames the ifidx is rcvd.
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- * bssidx 1 is used for p2p0 and no data can be received or
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- * transmitted on it. Therefor bssidx is ifidx + 1 if ifidx > 0
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- */
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- if (ifidx)
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- (ifidx)++;
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- ifp = msgbuf->drvr->iflist[ifidx];
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- if (!ifp || !ifp->ndev) {
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+ ifp = brcmf_get_ifp(msgbuf->drvr, ifidx);
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+ if (IS_ERR_OR_NULL(ifp) || !ifp->ndev) {
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brcmf_err("Received pkt for invalid ifidx %d\n", ifidx);
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brcmu_pkt_buf_free_skb(skb);
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return;
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