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openwrt/package/kernel/mac80211/patches/327-v4.17-0005-brcmfmac-use-wiphy-debugfs-dir-entry.patch
Rafał Miłecki 3c8bb92655 mac80211: backport brcmfmac data structure rework 
It backports brcmfmac commits from kernel 4.17.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2018-06-17 22:46:35 +02:00

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From 34789d0cf682c643862792750a06c31ccf016cbc Mon Sep 17 00:00:00 2001
From: Arend Van Spriel <arend.vanspriel@broadcom.com>
Date: Thu, 22 Mar 2018 21:28:24 +0100
Subject: [PATCH] brcmfmac: use wiphy debugfs dir entry
The driver used to create a brcmfmac dir entry at the top level
debugfs mount point. This moves the debugfs entries into the
wiphy debugfs dir entry.
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
.../wireless/broadcom/brcm80211/brcmfmac/bcdc.c | 6 ++++
.../wireless/broadcom/brcm80211/brcmfmac/common.c | 5 ---
.../wireless/broadcom/brcm80211/brcmfmac/core.c | 11 +++---
.../wireless/broadcom/brcm80211/brcmfmac/debug.c | 42 ++--------------------
.../wireless/broadcom/brcm80211/brcmfmac/debug.h | 17 ---------
.../wireless/broadcom/brcm80211/brcmfmac/feature.c | 3 ++
.../wireless/broadcom/brcm80211/brcmfmac/feature.h | 7 ++++
.../broadcom/brcm80211/brcmfmac/fwsignal.c | 11 +++---
.../broadcom/brcm80211/brcmfmac/fwsignal.h | 1 +
.../wireless/broadcom/brcm80211/brcmfmac/msgbuf.c | 8 +++--
.../wireless/broadcom/brcm80211/brcmfmac/proto.c | 3 +-
.../wireless/broadcom/brcm80211/brcmfmac/proto.h | 7 ++++
12 files changed, 47 insertions(+), 74 deletions(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c
@@ -445,6 +445,11 @@ brcmf_proto_bcdc_init_done(struct brcmf_
return 0;
}
+static void brcmf_proto_bcdc_debugfs_create(struct brcmf_pub *drvr)
+{
+ brcmf_fws_debugfs_create(drvr);
+}
+
int brcmf_proto_bcdc_attach(struct brcmf_pub *drvr)
{
struct brcmf_bcdc *bcdc;
@@ -472,6 +477,7 @@ int brcmf_proto_bcdc_attach(struct brcmf
drvr->proto->del_if = brcmf_proto_bcdc_del_if;
drvr->proto->reset_if = brcmf_proto_bcdc_reset_if;
drvr->proto->init_done = brcmf_proto_bcdc_init_done;
+ drvr->proto->debugfs_create = brcmf_proto_bcdc_debugfs_create;
drvr->proto->pd = bcdc;
drvr->hdrlen += BCDC_HEADER_LEN + BRCMF_PROT_FW_SIGNAL_MAX_TXBYTES;
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -529,9 +529,6 @@ static int __init brcmfmac_module_init(v
{
int err;
- /* Initialize debug system first */
- brcmf_debugfs_init();
-
/* Get the platform data (if available) for our devices */
err = platform_driver_probe(&brcmf_pd, brcmf_common_pd_probe);
if (err == -ENODEV)
@@ -543,7 +540,6 @@ static int __init brcmfmac_module_init(v
/* Continue the initialization by registering the different busses */
err = brcmf_core_init();
if (err) {
- brcmf_debugfs_exit();
if (brcmfmac_pdata)
platform_driver_unregister(&brcmf_pd);
}
@@ -556,7 +552,6 @@ static void __exit brcmfmac_module_exit(
brcmf_core_exit();
if (brcmfmac_pdata)
platform_driver_unregister(&brcmf_pd);
- brcmf_debugfs_exit();
}
module_init(brcmfmac_module_init);
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -1050,8 +1050,6 @@ static int brcmf_bus_started(struct brcm
if (ret < 0)
goto fail;
- brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read);
-
brcmf_feat_attach(drvr);
ret = brcmf_proto_init_done(drvr);
@@ -1094,6 +1092,11 @@ static int brcmf_bus_started(struct brcm
#endif
#endif /* CONFIG_INET */
+ /* populate debugfs */
+ brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read);
+ brcmf_feat_debugfs_create(drvr);
+ brcmf_proto_debugfs_create(drvr);
+
return 0;
fail:
@@ -1146,9 +1149,6 @@ int brcmf_attach(struct device *dev, str
drvr->bus_if->drvr = drvr;
drvr->settings = settings;
- /* attach debug facilities */
- brcmf_debug_attach(drvr);
-
/* Attach and link in the protocol */
ret = brcmf_proto_attach(drvr);
if (ret != 0) {
@@ -1238,7 +1238,6 @@ void brcmf_detach(struct device *dev)
brcmf_proto_detach(drvr);
- brcmf_debug_detach(drvr);
bus_if->drvr = NULL;
wiphy_free(drvr->wiphy);
}
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
@@ -25,8 +25,6 @@
#include "fweh.h"
#include "debug.h"
-static struct dentry *root_folder;
-
int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
size_t len)
{
@@ -54,44 +52,9 @@ int brcmf_debug_create_memdump(struct br
return 0;
}
-void brcmf_debugfs_init(void)
-{
- root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
- if (IS_ERR(root_folder))
- root_folder = NULL;
-}
-
-void brcmf_debugfs_exit(void)
-{
- if (!root_folder)
- return;
-
- debugfs_remove_recursive(root_folder);
- root_folder = NULL;
-}
-
-int brcmf_debug_attach(struct brcmf_pub *drvr)
-{
- struct device *dev = drvr->bus_if->dev;
-
- if (!root_folder)
- return -ENODEV;
-
- drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder);
- return PTR_ERR_OR_ZERO(drvr->dbgfs_dir);
-}
-
-void brcmf_debug_detach(struct brcmf_pub *drvr)
-{
- brcmf_fweh_unregister(drvr, BRCMF_E_PSM_WATCHDOG);
-
- if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
- debugfs_remove_recursive(drvr->dbgfs_dir);
-}
-
struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
{
- return drvr->dbgfs_dir;
+ return drvr->wiphy->debugfsdir;
}
int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
@@ -99,7 +62,8 @@ int brcmf_debugfs_add_entry(struct brcmf
{
struct dentry *e;
+ WARN(!drvr->wiphy->debugfsdir, "wiphy not (yet) registered\n");
e = debugfs_create_devm_seqfile(drvr->bus_if->dev, fn,
- drvr->dbgfs_dir, read_fn);
+ drvr->wiphy->debugfsdir, read_fn);
return PTR_ERR_OR_ZERO(e);
}
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
@@ -113,29 +113,12 @@ extern int brcmf_msg_level;
struct brcmf_bus;
struct brcmf_pub;
#ifdef DEBUG
-void brcmf_debugfs_init(void);
-void brcmf_debugfs_exit(void);
-int brcmf_debug_attach(struct brcmf_pub *drvr);
-void brcmf_debug_detach(struct brcmf_pub *drvr);
struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr);
int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
int (*read_fn)(struct seq_file *seq, void *data));
int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
size_t len);
#else
-static inline void brcmf_debugfs_init(void)
-{
-}
-static inline void brcmf_debugfs_exit(void)
-{
-}
-static inline int brcmf_debug_attach(struct brcmf_pub *drvr)
-{
- return 0;
-}
-static inline void brcmf_debug_detach(struct brcmf_pub *drvr)
-{
-}
static inline
int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
int (*read_fn)(struct seq_file *seq, void *data))
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
@@ -228,7 +228,10 @@ void brcmf_feat_attach(struct brcmf_pub
/* no quirks */
break;
}
+}
+void brcmf_feat_debugfs_create(struct brcmf_pub *drvr)
+{
brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read);
}
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h
@@ -90,6 +90,13 @@ enum brcmf_feat_quirk {
void brcmf_feat_attach(struct brcmf_pub *drvr);
/**
+ * brcmf_feat_debugfs_create() - create debugfs entries.
+ *
+ * @drvr: driver instance.
+ */
+void brcmf_feat_debugfs_create(struct brcmf_pub *drvr);
+
+/**
* brcmf_feat_is_enabled() - query feature.
*
* @ifp: interface instance.
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c
@@ -2399,10 +2399,6 @@ struct brcmf_fws_info *brcmf_fws_attach(
brcmu_pktq_init(&fws->desc.other.psq, BRCMF_FWS_PSQ_PREC_COUNT,
BRCMF_FWS_PSQ_LEN);
- /* create debugfs file for statistics */
- brcmf_debugfs_add_entry(drvr, "fws_stats",
- brcmf_debugfs_fws_stats_read);
-
brcmf_dbg(INFO, "%s bdcv2 tlv signaling [%x]\n",
fws->fw_signals ? "enabled" : "disabled", tlv);
return fws;
@@ -2429,6 +2425,13 @@ void brcmf_fws_detach(struct brcmf_fws_i
kfree(fws);
}
+void brcmf_fws_debugfs_create(struct brcmf_pub *drvr)
+{
+ /* create debugfs file for statistics */
+ brcmf_debugfs_add_entry(drvr, "fws_stats",
+ brcmf_debugfs_fws_stats_read);
+}
+
bool brcmf_fws_queue_skbs(struct brcmf_fws_info *fws)
{
return !fws->avoid_queueing;
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h
@@ -20,6 +20,7 @@
struct brcmf_fws_info *brcmf_fws_attach(struct brcmf_pub *drvr);
void brcmf_fws_detach(struct brcmf_fws_info *fws);
+void brcmf_fws_debugfs_create(struct brcmf_pub *drvr);
bool brcmf_fws_queue_skbs(struct brcmf_fws_info *fws);
bool brcmf_fws_fc_active(struct brcmf_fws_info *fws);
void brcmf_fws_hdrpull(struct brcmf_if *ifp, s16 siglen, struct sk_buff *skb);
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
@@ -1418,6 +1418,11 @@ static int brcmf_msgbuf_stats_read(struc
}
#endif
+static void brcmf_msgbuf_debugfs_create(struct brcmf_pub *drvr)
+{
+ brcmf_debugfs_add_entry(drvr, "msgbuf_stats", brcmf_msgbuf_stats_read);
+}
+
int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr)
{
struct brcmf_bus_msgbuf *if_msgbuf;
@@ -1472,6 +1477,7 @@ int brcmf_proto_msgbuf_attach(struct brc
drvr->proto->delete_peer = brcmf_msgbuf_delete_peer;
drvr->proto->add_tdls_peer = brcmf_msgbuf_add_tdls_peer;
drvr->proto->rxreorder = brcmf_msgbuf_rxreorder;
+ drvr->proto->debugfs_create = brcmf_msgbuf_debugfs_create;
drvr->proto->pd = msgbuf;
init_waitqueue_head(&msgbuf->ioctl_resp_wait);
@@ -1525,8 +1531,6 @@ int brcmf_proto_msgbuf_attach(struct brc
spin_lock_init(&msgbuf->flowring_work_lock);
INIT_LIST_HEAD(&msgbuf->work_queue);
- brcmf_debugfs_add_entry(drvr, "msgbuf_stats", brcmf_msgbuf_stats_read);
-
return 0;
fail:
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c
@@ -54,7 +54,8 @@ int brcmf_proto_attach(struct brcmf_pub
if (!proto->tx_queue_data || (proto->hdrpull == NULL) ||
(proto->query_dcmd == NULL) || (proto->set_dcmd == NULL) ||
(proto->configure_addr_mode == NULL) ||
- (proto->delete_peer == NULL) || (proto->add_tdls_peer == NULL)) {
+ (proto->delete_peer == NULL) || (proto->add_tdls_peer == NULL) ||
+ (proto->debugfs_create == NULL)) {
brcmf_err("Not all proto handlers have been installed\n");
goto fail;
}
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h
@@ -48,6 +48,7 @@ struct brcmf_proto {
void (*del_if)(struct brcmf_if *ifp);
void (*reset_if)(struct brcmf_if *ifp);
int (*init_done)(struct brcmf_pub *drvr);
+ void (*debugfs_create)(struct brcmf_pub *drvr);
void *pd;
};
@@ -156,4 +157,10 @@ brcmf_proto_init_done(struct brcmf_pub *
return drvr->proto->init_done(drvr);
}
+static inline void
+brcmf_proto_debugfs_create(struct brcmf_pub *drvr)
+{
+ drvr->proto->debugfs_create(drvr);
+}
+
#endif /* BRCMFMAC_PROTO_H */
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