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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-13 06:07:07 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-13 06:07:07 +0400
commit6be35c700f742e911ecedd07fcc43d4439922334 (patch)
treeca9f37214d204465fcc2d79c82efd291e357c53c /drivers/net/wireless/brcm80211/brcmfmac/fwil.c
parente37aa63e87bd581f9be5555ed0ba83f5295c92fc (diff)
parent520dfe3a3645257bf83660f672c47f8558f3d4c4 (diff)
downloadlinux-6be35c700f742e911ecedd07fcc43d4439922334.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller: 1) Allow to dump, monitor, and change the bridge multicast database using netlink. From Cong Wang. 2) RFC 5961 TCP blind data injection attack mitigation, from Eric Dumazet. 3) Networking user namespace support from Eric W. Biederman. 4) tuntap/virtio-net multiqueue support by Jason Wang. 5) Support for checksum offload of encapsulated packets (basically, tunneled traffic can still be checksummed by HW). From Joseph Gasparakis. 6) Allow BPF filter access to VLAN tags, from Eric Dumazet and Daniel Borkmann. 7) Bridge port parameters over netlink and BPDU blocking support from Stephen Hemminger. 8) Improve data access patterns during inet socket demux by rearranging socket layout, from Eric Dumazet. 9) TIPC protocol updates and cleanups from Ying Xue, Paul Gortmaker, and Jon Maloy. 10) Update TCP socket hash sizing to be more in line with current day realities. The existing heurstics were choosen a decade ago. From Eric Dumazet. 11) Fix races, queue bloat, and excessive wakeups in ATM and associated drivers, from Krzysztof Mazur and David Woodhouse. 12) Support DOVE (Distributed Overlay Virtual Ethernet) extensions in VXLAN driver, from David Stevens. 13) Add "oops_only" mode to netconsole, from Amerigo Wang. 14) Support set and query of VEB/VEPA bridge mode via PF_BRIDGE, also allow DCB netlink to work on namespaces other than the initial namespace. From John Fastabend. 15) Support PTP in the Tigon3 driver, from Matt Carlson. 16) tun/vhost zero copy fixes and improvements, plus turn it on by default, from Michael S. Tsirkin. 17) Support per-association statistics in SCTP, from Michele Baldessari. And many, many, driver updates, cleanups, and improvements. Too numerous to mention individually. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits) net/mlx4_en: Add support for destination MAC in steering rules net/mlx4_en: Use generic etherdevice.h functions. net: ethtool: Add destination MAC address to flow steering API bridge: add support of adding and deleting mdb entries bridge: notify mdb changes via netlink ndisc: Unexport ndisc_{build,send}_skb(). uapi: add missing netconf.h to export list pkt_sched: avoid requeues if possible solos-pci: fix double-free of TX skb in DMA mode bnx2: Fix accidental reversions. bna: Driver Version Updated to 3.1.2.1 bna: Firmware update bna: Add RX State bna: Rx Page Based Allocation bna: TX Intr Coalescing Fix bna: Tx and Rx Optimizations bna: Code Cleanup and Enhancements ath9k: check pdata variable before dereferencing it ath5k: RX timestamp is reported at end of frame ath9k_htc: RX timestamp is reported at end of frame ...
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/fwil.c')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/fwil.c344
1 files changed, 344 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwil.c b/drivers/net/wireless/brcm80211/brcmfmac/fwil.c
new file mode 100644
index 000000000000..d8d8b6549dc5
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwil.c
@@ -0,0 +1,344 @@
+/*
+ * Copyright (c) 2012 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.
+ */
+
+/* FWIL is the Firmware Interface Layer. In this module the support functions
+ * are located to set and get variables to and from the firmware.
+ */
+
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <brcmu_utils.h>
+#include <brcmu_wifi.h>
+#include "dhd.h"
+#include "dhd_bus.h"
+#include "dhd_dbg.h"
+#include "fwil.h"
+
+
+#define MAX_HEX_DUMP_LEN 64
+
+
+static s32
+brcmf_fil_cmd_data(struct brcmf_if *ifp, u32 cmd, void *data, u32 len, bool set)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+
+ if (drvr->bus_if->state != BRCMF_BUS_DATA) {
+ brcmf_err("bus is down. we have nothing to do.\n");
+ return -EIO;
+ }
+
+ if (data != NULL)
+ len = min_t(uint, len, BRCMF_DCMD_MAXLEN);
+ if (set)
+ err = brcmf_proto_cdc_set_dcmd(drvr, ifp->idx, cmd, data, len);
+ else
+ err = brcmf_proto_cdc_query_dcmd(drvr, ifp->idx, cmd, data,
+ len);
+
+ if (err >= 0)
+ err = 0;
+ else
+ brcmf_err("Failed err=%d\n", err);
+
+ return err;
+}
+
+s32
+brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
+{
+ s32 err;
+
+ mutex_lock(&ifp->drvr->proto_block);
+
+ brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ err = brcmf_fil_cmd_data(ifp, cmd, data, len, true);
+ mutex_unlock(&ifp->drvr->proto_block);
+
+ return err;
+}
+
+s32
+brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
+{
+ s32 err;
+
+ mutex_lock(&ifp->drvr->proto_block);
+ err = brcmf_fil_cmd_data(ifp, cmd, data, len, false);
+
+ brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ mutex_unlock(&ifp->drvr->proto_block);
+
+ return err;
+}
+
+
+s32
+brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data)
+{
+ s32 err;
+ __le32 data_le = cpu_to_le32(data);
+
+ mutex_lock(&ifp->drvr->proto_block);
+ err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), true);
+ mutex_unlock(&ifp->drvr->proto_block);
+
+ return err;
+}
+
+s32
+brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data)
+{
+ s32 err;
+ __le32 data_le = cpu_to_le32(*data);
+
+ mutex_lock(&ifp->drvr->proto_block);
+ err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), false);
+ mutex_unlock(&ifp->drvr->proto_block);
+ *data = le32_to_cpu(data_le);
+
+ return err;
+}
+
+static u32
+brcmf_create_iovar(char *name, char *data, u32 datalen, char *buf, u32 buflen)
+{
+ u32 len;
+
+ len = strlen(name) + 1;
+
+ if ((len + datalen) > buflen)
+ return 0;
+
+ memcpy(buf, name, len);
+
+ /* append data onto the end of the name string */
+ if (data && datalen)
+ memcpy(&buf[len], data, datalen);
+
+ return len + datalen;
+}
+
+
+s32
+brcmf_fil_iovar_data_set(struct brcmf_if *ifp, char *name, void *data,
+ u32 len)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+ u32 buflen;
+
+ mutex_lock(&drvr->proto_block);
+
+ brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
+ sizeof(drvr->proto_buf));
+ if (buflen) {
+ err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
+ buflen, true);
+ } else {
+ err = -EPERM;
+ brcmf_err("Creating iovar failed\n");
+ }
+
+ mutex_unlock(&drvr->proto_block);
+ return err;
+}
+
+s32
+brcmf_fil_iovar_data_get(struct brcmf_if *ifp, char *name, void *data,
+ u32 len)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+ u32 buflen;
+
+ mutex_lock(&drvr->proto_block);
+
+ buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
+ sizeof(drvr->proto_buf));
+ if (buflen) {
+ err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
+ buflen, false);
+ if (err == 0)
+ memcpy(data, drvr->proto_buf, len);
+ } else {
+ err = -EPERM;
+ brcmf_err("Creating iovar failed\n");
+ }
+
+ brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ mutex_unlock(&drvr->proto_block);
+ return err;
+}
+
+s32
+brcmf_fil_iovar_int_set(struct brcmf_if *ifp, char *name, u32 data)
+{
+ __le32 data_le = cpu_to_le32(data);
+
+ return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le));
+}
+
+s32
+brcmf_fil_iovar_int_get(struct brcmf_if *ifp, char *name, u32 *data)
+{
+ __le32 data_le = cpu_to_le32(*data);
+ s32 err;
+
+ err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le));
+ if (err == 0)
+ *data = le32_to_cpu(data_le);
+ return err;
+}
+
+static u32
+brcmf_create_bsscfg(s32 bssidx, char *name, char *data, u32 datalen, char *buf,
+ u32 buflen)
+{
+ const s8 *prefix = "bsscfg:";
+ s8 *p;
+ u32 prefixlen;
+ u32 namelen;
+ u32 iolen;
+ __le32 bssidx_le;
+
+ if (bssidx == 0)
+ return brcmf_create_iovar(name, data, datalen, buf, buflen);
+
+ prefixlen = strlen(prefix);
+ namelen = strlen(name) + 1; /* lengh of iovar name + null */
+ iolen = prefixlen + namelen + sizeof(bssidx_le) + datalen;
+
+ if (buflen < iolen) {
+ brcmf_err("buffer is too short\n");
+ return 0;
+ }
+
+ p = buf;
+
+ /* copy prefix, no null */
+ memcpy(p, prefix, prefixlen);
+ p += prefixlen;
+
+ /* copy iovar name including null */
+ memcpy(p, name, namelen);
+ p += namelen;
+
+ /* bss config index as first data */
+ bssidx_le = cpu_to_le32(bssidx);
+ memcpy(p, &bssidx_le, sizeof(bssidx_le));
+ p += sizeof(bssidx_le);
+
+ /* parameter buffer follows */
+ if (datalen)
+ memcpy(p, data, datalen);
+
+ return iolen;
+}
+
+s32
+brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, char *name,
+ void *data, u32 len)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+ u32 buflen;
+
+ mutex_lock(&drvr->proto_block);
+
+ brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", ifp->bssidx, name, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
+ drvr->proto_buf, sizeof(drvr->proto_buf));
+ if (buflen) {
+ err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
+ buflen, true);
+ } else {
+ err = -EPERM;
+ brcmf_err("Creating bsscfg failed\n");
+ }
+
+ mutex_unlock(&drvr->proto_block);
+ return err;
+}
+
+s32
+brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, char *name,
+ void *data, u32 len)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+ u32 buflen;
+
+ mutex_lock(&drvr->proto_block);
+
+ buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
+ drvr->proto_buf, sizeof(drvr->proto_buf));
+ if (buflen) {
+ err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
+ buflen, false);
+ if (err == 0)
+ memcpy(data, drvr->proto_buf, len);
+ } else {
+ err = -EPERM;
+ brcmf_err("Creating bsscfg failed\n");
+ }
+ brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", ifp->bssidx, name, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ mutex_unlock(&drvr->proto_block);
+ return err;
+
+}
+
+s32
+brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, char *name, u32 data)
+{
+ __le32 data_le = cpu_to_le32(data);
+
+ return brcmf_fil_bsscfg_data_set(ifp, name, &data_le,
+ sizeof(data_le));
+}
+
+s32
+brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, char *name, u32 *data)
+{
+ __le32 data_le = cpu_to_le32(*data);
+ s32 err;
+
+ err = brcmf_fil_bsscfg_data_get(ifp, name, &data_le,
+ sizeof(data_le));
+ if (err == 0)
+ *data = le32_to_cpu(data_le);
+ return err;
+}