xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

replace net_device arguments with ieee80211_{local,sub_if_data} as appropriate

Browse Source 
This patch replaces net_device arguments to mac80211 internal functions
with ieee80211_{local,sub_if_data} as appropriate.

It also does the same for many 802.11s mesh functions, and changes the
mesh path table to be indexed on sub_if_data rather than net_device.

If the mesh part needs to be a separate patch let me know, but since
mesh uses a lot of mac80211 functions which were being converted anyway,
the changes go hand-in-hand somewhat.

This patch probably does not convert all the functions which could be
converted, but it is a large chunk and followup patches will be
provided.

Signed-off-by: Jasper Bryant-Greene <jasper@amiton.co.nz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jasper Bryant-Greene
2008-08-03 12:04:37 +12:00
committed by John W. Linville
parent fef1643bf0
commit f698d856f6
16 changed files with 546 additions and 609 deletions
Download Patch File Download Diff File Expand all files Collapse all files

112
net/mac80211/mesh_hwmp.c
View File

@@ -82,9 +82,9 @@ enum mpath_frame_type {
static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
u8 *orig_addr, __le32 orig_dsn, u8 dst_flags, u8 *dst,
__le32 dst_dsn, u8 *da, u8 hop_count, u8 ttl, __le32 lifetime,
__le32 metric, __le32 preq_id, struct net_device *dev)
__le32 metric, __le32 preq_id, struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
struct ieee80211_mgmt *mgmt;
u8 *pos;
@@ -103,7 +103,7 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
IEEE80211_STYPE_ACTION);
memcpy(mgmt->da, da, ETH_ALEN);
memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
mgmt->u.action.u.mesh_action.action_code = action;
@@ -149,7 +149,7 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
pos += ETH_ALEN;
memcpy(pos, &dst_dsn, 4);
ieee80211_sta_tx(dev, skb, 0);
ieee80211_sta_tx(sdata, skb, 0);
return 0;
}
@@ -161,9 +161,9 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
* @ra: node this frame is addressed to
*/
int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
struct net_device *dev)
struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
struct ieee80211_mgmt *mgmt;
u8 *pos;
@@ -182,7 +182,7 @@ int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
IEEE80211_STYPE_ACTION);
memcpy(mgmt->da, ra, ETH_ALEN);
memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
mgmt->u.action.u.mesh_action.action_code = MPATH_PERR;
@@ -198,7 +198,7 @@ int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
pos += ETH_ALEN;
memcpy(pos, &dst_dsn, 4);
ieee80211_sta_tx(dev, skb, 0);
ieee80211_sta_tx(sdata, skb, 0);
return 0;
}
@@ -233,7 +233,7 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local,
/**
* hwmp_route_info_get - Update routing info to originator and transmitter
*
* @dev: local mesh interface
* @sdata: local mesh subif
* @mgmt: mesh management frame
* @hwmp_ie: hwmp information element (PREP or PREQ)
*
@@ -246,11 +246,11 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local,
* Notes: this function is the only place (besides user-provided info) where
* path routing information is updated.
*/
static u32 hwmp_route_info_get(struct net_device *dev,
static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
u8 *hwmp_ie)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_local *local = sdata->local;
struct mesh_path *mpath;
struct sta_info *sta;
bool fresh_info;
@@ -301,14 +301,14 @@ static u32 hwmp_route_info_get(struct net_device *dev,
new_metric = MAX_METRIC;
exp_time = TU_TO_EXP_TIME(orig_lifetime);
if (memcmp(orig_addr, dev->dev_addr, ETH_ALEN) == 0) {
if (memcmp(orig_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) {
/* This MP is the originator, we are not interested in this
* frame, except for updating transmitter's path info.
*/
process = false;
fresh_info = false;
} else {
mpath = mesh_path_lookup(orig_addr, dev);
mpath = mesh_path_lookup(orig_addr, sdata);
if (mpath) {
spin_lock_bh(&mpath->state_lock);
if (mpath->flags & MESH_PATH_FIXED)
@@ -324,8 +324,8 @@ static u32 hwmp_route_info_get(struct net_device *dev,
}
}
} else {
mesh_path_add(orig_addr, dev);
mpath = mesh_path_lookup(orig_addr, dev);
mesh_path_add(orig_addr, sdata);
mpath = mesh_path_lookup(orig_addr, sdata);
if (!mpath) {
rcu_read_unlock();
return 0;
@@ -357,7 +357,7 @@ static u32 hwmp_route_info_get(struct net_device *dev,
else {
fresh_info = true;
mpath = mesh_path_lookup(ta, dev);
mpath = mesh_path_lookup(ta, sdata);
if (mpath) {
spin_lock_bh(&mpath->state_lock);
if ((mpath->flags & MESH_PATH_FIXED) ||
@@ -365,8 +365,8 @@ static u32 hwmp_route_info_get(struct net_device *dev,
(last_hop_metric > mpath->metric)))
fresh_info = false;
} else {
mesh_path_add(ta, dev);
mpath = mesh_path_lookup(ta, dev);
mesh_path_add(ta, sdata);
mpath = mesh_path_lookup(ta, sdata);
if (!mpath) {
rcu_read_unlock();
return 0;
@@ -392,10 +392,9 @@ static u32 hwmp_route_info_get(struct net_device *dev,
return process ? new_metric : 0;
}
static void hwmp_preq_frame_process(struct net_device *dev,
static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
u8 *preq_elem, u32 metric) {
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
struct mesh_path *mpath;
u8 *dst_addr, *orig_addr;
@@ -411,7 +410,7 @@ static void hwmp_preq_frame_process(struct net_device *dev,
orig_dsn = PREQ_IE_ORIG_DSN(preq_elem);
dst_flags = PREQ_IE_DST_F(preq_elem);
if (memcmp(dst_addr, dev->dev_addr, ETH_ALEN) == 0) {
if (memcmp(dst_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) {
forward = false;
reply = true;
metric = 0;
@@ -423,7 +422,7 @@ static void hwmp_preq_frame_process(struct net_device *dev,
}
} else {
rcu_read_lock();
mpath = mesh_path_lookup(dst_addr, dev);
mpath = mesh_path_lookup(dst_addr, sdata);
if (mpath) {
if ((!(mpath->flags & MESH_PATH_DSN_VALID)) ||
DSN_LT(mpath->dsn, dst_dsn)) {
@@ -451,7 +450,7 @@ static void hwmp_preq_frame_process(struct net_device *dev,
cpu_to_le32(dst_dsn), 0, orig_addr,
cpu_to_le32(orig_dsn), mgmt->sa, 0, ttl,
cpu_to_le32(lifetime), cpu_to_le32(metric),
0, dev);
0, sdata);
else
ifsta->mshstats.dropped_frames_ttl++;
}
@@ -472,20 +471,19 @@ static void hwmp_preq_frame_process(struct net_device *dev,
hopcount = PREQ_IE_HOPCOUNT(preq_elem) + 1;
mesh_path_sel_frame_tx(MPATH_PREQ, flags, orig_addr,
cpu_to_le32(orig_dsn), dst_flags, dst_addr,
cpu_to_le32(dst_dsn), dev->broadcast,
cpu_to_le32(dst_dsn), sdata->dev->broadcast,
hopcount, ttl, cpu_to_le32(lifetime),
cpu_to_le32(metric), cpu_to_le32(preq_id),
dev);
sdata);
ifsta->mshstats.fwded_frames++;
}
}
static void hwmp_prep_frame_process(struct net_device *dev,
static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
u8 *prep_elem, u32 metric)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct mesh_path *mpath;
u8 *dst_addr, *orig_addr;
u8 ttl, hopcount, flags;
@@ -499,7 +497,7 @@ static void hwmp_prep_frame_process(struct net_device *dev,
* replies
*/
dst_addr = PREP_IE_DST_ADDR(prep_elem);
if (memcmp(dst_addr, dev->dev_addr, ETH_ALEN) == 0)
if (memcmp(dst_addr, sdata->dev->dev_addr, ETH_ALEN) == 0)
/* destination, no forwarding required */
return;
@@ -510,7 +508,7 @@ static void hwmp_prep_frame_process(struct net_device *dev,
}
rcu_read_lock();
mpath = mesh_path_lookup(dst_addr, dev);
mpath = mesh_path_lookup(dst_addr, sdata);
if (mpath)
spin_lock_bh(&mpath->state_lock);
else
@@ -533,7 +531,7 @@ static void hwmp_prep_frame_process(struct net_device *dev,
cpu_to_le32(orig_dsn), 0, dst_addr,
cpu_to_le32(dst_dsn), mpath->next_hop->addr, hopcount, ttl,
cpu_to_le32(lifetime), cpu_to_le32(metric),
0, dev);
0, sdata);
rcu_read_unlock();
sdata->u.sta.mshstats.fwded_frames++;
return;
@@ -544,7 +542,7 @@ fail:
return;
}
static void hwmp_perr_frame_process(struct net_device *dev,
static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, u8 *perr_elem)
{
struct mesh_path *mpath;
@@ -555,7 +553,7 @@ static void hwmp_perr_frame_process(struct net_device *dev,
dst_addr = PERR_IE_DST_ADDR(perr_elem);
dst_dsn = PERR_IE_DST_DSN(perr_elem);
rcu_read_lock();
mpath = mesh_path_lookup(dst_addr, dev);
mpath = mesh_path_lookup(dst_addr, sdata);
if (mpath) {
spin_lock_bh(&mpath->state_lock);
if (mpath->flags & MESH_PATH_ACTIVE &&
@@ -566,7 +564,7 @@ static void hwmp_perr_frame_process(struct net_device *dev,
mpath->dsn = dst_dsn;
spin_unlock_bh(&mpath->state_lock);
mesh_path_error_tx(dst_addr, cpu_to_le32(dst_dsn),
dev->broadcast, dev);
sdata->dev->broadcast, sdata);
} else
spin_unlock_bh(&mpath->state_lock);
}
@@ -575,7 +573,7 @@ static void hwmp_perr_frame_process(struct net_device *dev,
void mesh_rx_path_sel_frame(struct net_device *dev,
void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len)
{
@@ -592,25 +590,25 @@ void mesh_rx_path_sel_frame(struct net_device *dev,
if (!elems.preq || elems.preq_len != 37)
/* Right now we support just 1 destination and no AE */
return;
last_hop_metric = hwmp_route_info_get(dev, mgmt, elems.preq);
last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.preq);
if (!last_hop_metric)
return;
hwmp_preq_frame_process(dev, mgmt, elems.preq, last_hop_metric);
hwmp_preq_frame_process(sdata, mgmt, elems.preq, last_hop_metric);
break;
case MPATH_PREP:
if (!elems.prep || elems.prep_len != 31)
/* Right now we support no AE */
return;
last_hop_metric = hwmp_route_info_get(dev, mgmt, elems.prep);
last_hop_metric = hwmp_route_info_get(sdata, mgmt, elems.prep);
if (!last_hop_metric)
return;
hwmp_prep_frame_process(dev, mgmt, elems.prep, last_hop_metric);
hwmp_prep_frame_process(sdata, mgmt, elems.prep, last_hop_metric);
break;
case MPATH_PERR:
if (!elems.perr || elems.perr_len != 12)
/* Right now we support only one destination per PERR */
return;
hwmp_perr_frame_process(dev, mgmt, elems.perr);
hwmp_perr_frame_process(sdata, mgmt, elems.perr);
default:
return;
}
@@ -628,8 +626,7 @@ void mesh_rx_path_sel_frame(struct net_device *dev,
*/
static void mesh_queue_preq(struct mesh_path *mpath, u8 flags)
{
struct ieee80211_sub_if_data *sdata =
IEEE80211_DEV_TO_SUB_IF(mpath->dev);
struct ieee80211_sub_if_data *sdata = mpath->sdata;
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
struct mesh_preq_queue *preq_node;
@@ -672,12 +669,10 @@ static void mesh_queue_preq(struct mesh_path *mpath, u8 flags)
/**
* mesh_path_start_discovery - launch a path discovery from the PREQ queue
*
* @dev: local mesh interface
* @sdata: local mesh subif
*/
void mesh_path_start_discovery(struct net_device *dev)
void mesh_path_start_discovery(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_sub_if_data *sdata =
IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
struct mesh_preq_queue *preq_node;
struct mesh_path *mpath;
@@ -699,7 +694,7 @@ void mesh_path_start_discovery(struct net_device *dev)
spin_unlock(&ifsta->mesh_preq_queue_lock);
rcu_read_lock();
mpath = mesh_path_lookup(preq_node->dst, dev);
mpath = mesh_path_lookup(preq_node->dst, sdata);
if (!mpath)
goto enddiscovery;
@@ -743,11 +738,11 @@ void mesh_path_start_discovery(struct net_device *dev)
dst_flags = MP_F_RF;
spin_unlock_bh(&mpath->state_lock);
mesh_path_sel_frame_tx(MPATH_PREQ, 0, dev->dev_addr,
mesh_path_sel_frame_tx(MPATH_PREQ, 0, sdata->dev->dev_addr,
cpu_to_le32(ifsta->dsn), dst_flags, mpath->dst,
cpu_to_le32(mpath->dsn), dev->broadcast, 0,
cpu_to_le32(mpath->dsn), sdata->dev->broadcast, 0,
ttl, cpu_to_le32(lifetime), 0,
cpu_to_le32(ifsta->preq_id++), dev);
cpu_to_le32(ifsta->preq_id++), sdata);
mod_timer(&mpath->timer, jiffies + mpath->discovery_timeout);
enddiscovery:
@@ -759,7 +754,7 @@ enddiscovery:
* ieee80211s_lookup_nexthop - put the appropriate next hop on a mesh frame
*
* @skb: 802.11 frame to be sent
* @dev: network device the frame will be sent through
* @sdata: network subif the frame will be sent through
* @fwd_frame: true if this frame was originally from a different host
*
* Returns: 0 if the next hop was found. Nonzero otherwise. If no next hop is
@@ -767,9 +762,9 @@ enddiscovery:
* sent when the path is resolved. This means the caller must not free the skb
* in this case.
*/
int mesh_nexthop_lookup(struct sk_buff *skb, struct net_device *dev)
int mesh_nexthop_lookup(struct sk_buff *skb,
struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sk_buff *skb_to_free = NULL;
struct mesh_path *mpath;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
@@ -777,11 +772,11 @@ int mesh_nexthop_lookup(struct sk_buff *skb, struct net_device *dev)
int err = 0;
rcu_read_lock();
mpath = mesh_path_lookup(dst_addr, dev);
mpath = mesh_path_lookup(dst_addr, sdata);
if (!mpath) {
mesh_path_add(dst_addr, dev);
mpath = mesh_path_lookup(dst_addr, dev);
mesh_path_add(dst_addr, sdata);
mpath = mesh_path_lookup(dst_addr, sdata);
if (!mpath) {
dev_kfree_skb(skb);
sdata->u.sta.mshstats.dropped_frames_no_route++;
@@ -793,7 +788,8 @@ int mesh_nexthop_lookup(struct sk_buff *skb, struct net_device *dev)
if (mpath->flags & MESH_PATH_ACTIVE) {
if (time_after(jiffies, mpath->exp_time -
msecs_to_jiffies(sdata->u.sta.mshcfg.path_refresh_time))
&& !memcmp(dev->dev_addr, hdr->addr4, ETH_ALEN)
&& !memcmp(sdata->dev->dev_addr, hdr->addr4,
ETH_ALEN)
&& !(mpath->flags & MESH_PATH_RESOLVING)
&& !(mpath->flags & MESH_PATH_FIXED)) {
mesh_queue_preq(mpath,
@@ -815,7 +811,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb, struct net_device *dev)
skb_queue_tail(&mpath->frame_queue, skb);
if (skb_to_free)
mesh_path_discard_frame(skb_to_free, dev);
mesh_path_discard_frame(skb_to_free, sdata);
err = -ENOENT;
}
@@ -835,7 +831,7 @@ void mesh_path_timer(unsigned long data)
if (!mpath)
goto endmpathtimer;
spin_lock_bh(&mpath->state_lock);
sdata = IEEE80211_DEV_TO_SUB_IF(mpath->dev);
sdata = mpath->sdata;
if (mpath->flags & MESH_PATH_RESOLVED ||
(!(mpath->flags & MESH_PATH_RESOLVING)))
mpath->flags &= ~(MESH_PATH_RESOLVING | MESH_PATH_RESOLVED);