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author | David Gnedt <david.gnedt@davizone.at> | 2014-01-07 13:08:30 +0100 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2014-01-09 10:56:06 -0500 |
commit | 9ed74ba029fc920701cdcada8e25889a6d64a335 (patch) | |
tree | cc4a3602356342153a6fca3f49e8995de3882291 /drivers/net/wireless/ti/wl1251/main.c | |
parent | 4d09b5378defd4ef685f9d33e0d35b380109eafa (diff) | |
download | op-kernel-dev-9ed74ba029fc920701cdcada8e25889a6d64a335.zip op-kernel-dev-9ed74ba029fc920701cdcada8e25889a6d64a335.tar.gz |
wl1251: implement multicast address filtering (fwd)
Port multicast address filtering from wl1271 driver.
It sets up the hardware multicast address filter in configure_filter() with
addresses supplied through prepare_multicast().
Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ti/wl1251/main.c')
-rw-r--r-- | drivers/net/wireless/ti/wl1251/main.c | 57 |
1 files changed, 55 insertions, 2 deletions
diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c index afd79aa..cda3881 100644 --- a/drivers/net/wireless/ti/wl1251/main.c +++ b/drivers/net/wireless/ti/wl1251/main.c @@ -28,6 +28,7 @@ #include <linux/etherdevice.h> #include <linux/vmalloc.h> #include <linux/slab.h> +#include <linux/netdevice.h> #include "wl1251.h" #include "wl12xx_80211.h" @@ -677,6 +678,44 @@ out: return ret; } +struct wl1251_filter_params { + bool enabled; + int mc_list_length; + u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN]; +}; + +static u64 wl1251_op_prepare_multicast(struct ieee80211_hw *hw, + struct netdev_hw_addr_list *mc_list) +{ + struct wl1251_filter_params *fp; + struct netdev_hw_addr *ha; + struct wl1251 *wl = hw->priv; + + if (unlikely(wl->state == WL1251_STATE_OFF)) + return 0; + + fp = kzalloc(sizeof(*fp), GFP_ATOMIC); + if (!fp) { + wl1251_error("Out of memory setting filters."); + return 0; + } + + /* update multicast filtering parameters */ + fp->mc_list_length = 0; + if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) { + fp->enabled = false; + } else { + fp->enabled = true; + netdev_hw_addr_list_for_each(ha, mc_list) { + memcpy(fp->mc_list[fp->mc_list_length], + ha->addr, ETH_ALEN); + fp->mc_list_length++; + } + } + + return (u64)(unsigned long)fp; +} + #define WL1251_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ FIF_ALLMULTI | \ FIF_FCSFAIL | \ @@ -687,8 +726,9 @@ out: static void wl1251_op_configure_filter(struct ieee80211_hw *hw, unsigned int changed, - unsigned int *total,u64 multicast) + unsigned int *total, u64 multicast) { + struct wl1251_filter_params *fp = (void *)(unsigned long)multicast; struct wl1251 *wl = hw->priv; int ret; @@ -697,9 +737,11 @@ static void wl1251_op_configure_filter(struct ieee80211_hw *hw, *total &= WL1251_SUPPORTED_FILTERS; changed &= WL1251_SUPPORTED_FILTERS; - if (changed == 0) + if (changed == 0) { /* no filters which we support changed */ + kfree(fp); return; + } mutex_lock(&wl->mutex); @@ -736,6 +778,15 @@ static void wl1251_op_configure_filter(struct ieee80211_hw *hw, if (ret < 0) goto out; + if (*total & FIF_ALLMULTI || *total & FIF_PROMISC_IN_BSS) + ret = wl1251_acx_group_address_tbl(wl, false, NULL, 0); + else if (fp) + ret = wl1251_acx_group_address_tbl(wl, fp->enabled, + fp->mc_list, + fp->mc_list_length); + if (ret < 0) + goto out; + /* send filters to firmware */ wl1251_acx_rx_config(wl, wl->rx_config, wl->rx_filter); @@ -743,6 +794,7 @@ static void wl1251_op_configure_filter(struct ieee80211_hw *hw, out: mutex_unlock(&wl->mutex); + kfree(fp); } /* HW encryption */ @@ -1282,6 +1334,7 @@ static const struct ieee80211_ops wl1251_ops = { .add_interface = wl1251_op_add_interface, .remove_interface = wl1251_op_remove_interface, .config = wl1251_op_config, + .prepare_multicast = wl1251_op_prepare_multicast, .configure_filter = wl1251_op_configure_filter, .tx = wl1251_op_tx, .set_key = wl1251_op_set_key, |