2009-10-22 18:37:08

by Lennert Buytenhek

[permalink] [raw]
Subject: [PATCH 06/28] mwl8k: implement FIF_ALLMULTI

Signed-off-by: Lennert Buytenhek <[email protected]>
---
drivers/net/wireless/mwl8k.c | 39 ++++++++++++++++++++++++++++-----------
1 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 77985e9..cc58ecb 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -1543,16 +1543,14 @@ struct mwl8k_cmd_mac_multicast_adr {
#define MWL8K_ENABLE_RX_BROADCAST 0x0008

static struct mwl8k_cmd_pkt *
-__mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw,
+__mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
int mc_count, struct dev_addr_list *mclist)
{
struct mwl8k_priv *priv = hw->priv;
struct mwl8k_cmd_mac_multicast_adr *cmd;
- int allmulti;
int size;

- allmulti = 0;
- if (mc_count > priv->num_mcaddrs) {
+ if (allmulti || mc_count > priv->num_mcaddrs) {
allmulti = 1;
mc_count = 0;
}
@@ -2680,7 +2678,14 @@ static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw,
{
struct mwl8k_cmd_pkt *cmd;

- cmd = __mwl8k_cmd_mac_multicast_adr(hw, mc_count, mclist);
+ /*
+ * Synthesize and return a command packet that programs the
+ * hardware multicast address filter. At this point we don't
+ * know whether FIF_ALLMULTI is being requested, but if it is,
+ * we'll end up throwing this packet away and creating a new
+ * one in mwl8k_configure_filter().
+ */
+ cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_count, mclist);

return (unsigned long)cmd;
}
@@ -2691,10 +2696,10 @@ static void mwl8k_configure_filter(struct ieee80211_hw *hw,
u64 multicast)
{
struct mwl8k_priv *priv = hw->priv;
- struct mwl8k_cmd_pkt *multicast_adr_cmd;
+ struct mwl8k_cmd_pkt *cmd;

/* Clear unsupported feature flags */
- *total_flags &= FIF_BCN_PRBRESP_PROMISC;
+ *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;

if (mwl8k_fw_lock(hw))
return;
@@ -2713,10 +2718,22 @@ static void mwl8k_configure_filter(struct ieee80211_hw *hw,
}
}

- multicast_adr_cmd = (void *)(unsigned long)multicast;
- if (multicast_adr_cmd != NULL) {
- mwl8k_post_cmd(hw, multicast_adr_cmd);
- kfree(multicast_adr_cmd);
+ cmd = (void *)(unsigned long)multicast;
+
+ /*
+ * If FIF_ALLMULTI is being requested, throw away the command
+ * packet that ->prepare_multicast() built and replace it with
+ * a command packet that enables reception of all multicast
+ * packets.
+ */
+ if (*total_flags & FIF_ALLMULTI) {
+ kfree(cmd);
+ cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, 0, NULL);
+ }
+
+ if (cmd != NULL) {
+ mwl8k_post_cmd(hw, cmd);
+ kfree(cmd);
}

mwl8k_fw_unlock(hw);
--
1.5.6.4