mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 01:28:59 +00:00
217 lines
6.6 KiB
Diff
217 lines
6.6 KiB
Diff
--- a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
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+++ b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
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@@ -541,6 +541,15 @@ brcms_ops_bss_info_changed(struct ieee80
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spin_unlock_bh(&wl->lock);
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}
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+ if (changed & BSS_CHANGED_AP_PROBE_RESP) {
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+ struct sk_buff *probe_resp;
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+
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+ spin_lock_bh(&wl->lock);
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+ probe_resp = ieee80211_proberesp_get(hw, vif);
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+ brcms_c_set_new_probe_resp(wl->wlc, probe_resp);
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+ spin_unlock_bh(&wl->lock);
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+ }
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+
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if (changed & BSS_CHANGED_BEACON_ENABLED) {
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/* Beaconing should be enabled/disabled (beaconing modes) */
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brcms_err(core, "%s: Beacon enabled: %s\n", __func__,
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@@ -1039,6 +1048,8 @@ static int ieee_hw_init(struct ieee80211
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hw->channel_change_time = 7 * 1000;
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hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
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+ hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
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+
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hw->rate_control_algorithm = "minstrel_ht";
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hw->sta_data_size = 0;
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--- a/drivers/net/wireless/brcm80211/brcmsmac/main.c
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+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c
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@@ -453,6 +453,8 @@ static void brcms_c_detach_mfree(struct
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kfree(wlc->hw);
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if (wlc->beacon)
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dev_kfree_skb_any(wlc->beacon);
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+ if (wlc->probe_resp)
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+ dev_kfree_skb_any(wlc->probe_resp);
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/* free the wlc */
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kfree(wlc);
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@@ -7327,69 +7329,6 @@ brcms_c_mod_prb_rsp_rate_table(struct br
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}
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}
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-/* Max buffering needed for beacon template/prb resp template is 142 bytes.
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- *
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- * PLCP header is 6 bytes.
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- * 802.11 A3 header is 24 bytes.
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- * Max beacon frame body template length is 112 bytes.
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- * Max probe resp frame body template length is 110 bytes.
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- *
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- * *len on input contains the max length of the packet available.
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- *
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- * The *len value is set to the number of bytes in buf used, and starts
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- * with the PLCP and included up to, but not including, the 4 byte FCS.
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- */
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-static void
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-brcms_c_bcn_prb_template(struct brcms_c_info *wlc, u16 type,
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- u32 bcn_rspec,
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- struct brcms_bss_cfg *cfg, u16 *buf, int *len)
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-{
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- static const u8 ether_bcast[ETH_ALEN] = {255, 255, 255, 255, 255, 255};
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- struct cck_phy_hdr *plcp;
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- struct ieee80211_mgmt *h;
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- int hdr_len, body_len;
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-
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- hdr_len = D11_PHY_HDR_LEN + DOT11_MAC_HDR_LEN;
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-
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- /* calc buffer size provided for frame body */
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- body_len = *len - hdr_len;
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- /* return actual size */
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- *len = hdr_len + body_len;
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-
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- /* format PHY and MAC headers */
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- memset(buf, 0, hdr_len);
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-
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- plcp = (struct cck_phy_hdr *) buf;
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-
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- /*
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- * PLCP for Probe Response frames are filled in from
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- * core's rate table
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- */
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- if (type == IEEE80211_STYPE_BEACON)
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- /* fill in PLCP */
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- brcms_c_compute_plcp(wlc, bcn_rspec,
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- (DOT11_MAC_HDR_LEN + body_len + FCS_LEN),
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- (u8 *) plcp);
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-
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- /* "Regular" and 16 MBSS but not for 4 MBSS */
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- /* Update the phytxctl for the beacon based on the rspec */
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- brcms_c_beacon_phytxctl_txant_upd(wlc, bcn_rspec);
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-
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- h = (struct ieee80211_mgmt *)&plcp[1];
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-
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- /* fill in 802.11 header */
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- h->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | type);
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-
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- /* DUR is 0 for multicast bcn, or filled in by MAC for prb resp */
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- /* A1 filled in by MAC for prb resp, broadcast for bcn */
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- if (type == IEEE80211_STYPE_BEACON)
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- memcpy(&h->da, ðer_bcast, ETH_ALEN);
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- memcpy(&h->sa, &wlc->pub->cur_etheraddr, ETH_ALEN);
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- memcpy(&h->bssid, &cfg->BSSID, ETH_ALEN);
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-
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- /* SEQ filled in by MAC */
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-}
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-
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int brcms_c_get_header_len(void)
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{
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return TXOFF;
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@@ -7531,6 +7470,20 @@ void brcms_c_set_new_beacon(struct brcms
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brcms_c_update_beacon(wlc);
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}
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+void brcms_c_set_new_probe_resp(struct brcms_c_info *wlc,
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+ struct sk_buff *probe_resp)
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+{
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+ if (!probe_resp)
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+ return;
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+ if (wlc->probe_resp)
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+ dev_kfree_skb_any(wlc->probe_resp);
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+ wlc->probe_resp = probe_resp;
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+
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+ /* add PLCP */
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+ skb_push(wlc->probe_resp, D11_PHY_HDR_LEN);
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+ brcms_c_update_probe_resp(wlc, false);
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+}
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+
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/* Write ssid into shared memory */
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static void
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brcms_c_shm_ssid_upd(struct brcms_c_info *wlc, struct brcms_bss_cfg *cfg)
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@@ -7550,30 +7503,19 @@ brcms_c_shm_ssid_upd(struct brcms_c_info
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static void
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brcms_c_bss_update_probe_resp(struct brcms_c_info *wlc,
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struct brcms_bss_cfg *cfg,
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+ struct sk_buff *probe_resp,
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bool suspend)
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{
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- u16 *prb_resp;
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- int len = BCN_TMPL_LEN;
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+ int len;
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- prb_resp = kmalloc(BCN_TMPL_LEN, GFP_ATOMIC);
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- if (!prb_resp)
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- return;
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-
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- /*
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- * write the probe response to hardware, or save in
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- * the config structure
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- */
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-
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- /* create the probe response template */
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- brcms_c_bcn_prb_template(wlc, IEEE80211_STYPE_PROBE_RESP, 0,
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- cfg, prb_resp, &len);
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+ len = min_t(size_t, probe_resp->len, BCN_TMPL_LEN);
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if (suspend)
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brcms_c_suspend_mac_and_wait(wlc);
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/* write the probe response into the template region */
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brcms_b_write_template_ram(wlc->hw, T_PRS_TPL_BASE,
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- (len + 3) & ~3, prb_resp);
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+ (len + 3) & ~3, probe_resp->data);
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/* write the length of the probe response frame (+PLCP/-FCS) */
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brcms_b_write_shm(wlc->hw, M_PRB_RESP_FRM_LEN, (u16) len);
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@@ -7587,13 +7529,11 @@ brcms_c_bss_update_probe_resp(struct brc
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* PLCP header for the call to brcms_c_mod_prb_rsp_rate_table()
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* by subtracting the PLCP len and adding the FCS.
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*/
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- len += (-D11_PHY_HDR_LEN + FCS_LEN);
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- brcms_c_mod_prb_rsp_rate_table(wlc, (u16) len);
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+ brcms_c_mod_prb_rsp_rate_table(wlc,
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+ (u16)len + FCS_LEN - D11_PHY_HDR_LEN);
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if (suspend)
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brcms_c_enable_mac(wlc);
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-
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- kfree(prb_resp);
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}
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void brcms_c_update_probe_resp(struct brcms_c_info *wlc, bool suspend)
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@@ -7602,8 +7542,12 @@ void brcms_c_update_probe_resp(struct br
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/* update AP or IBSS probe responses */
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if (wlc->pub->up && (bsscfg->type == BRCMS_TYPE_AP ||
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- bsscfg->type == BRCMS_TYPE_ADHOC))
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- brcms_c_bss_update_probe_resp(wlc, bsscfg, suspend);
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+ bsscfg->type == BRCMS_TYPE_ADHOC)) {
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+ if (!wlc->probe_resp)
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+ return;
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+ brcms_c_bss_update_probe_resp(wlc, bsscfg, wlc->probe_resp,
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+ suspend);
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+ }
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}
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int brcms_b_xmtfifo_sz_get(struct brcms_hardware *wlc_hw, uint fifo,
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--- a/drivers/net/wireless/brcm80211/brcmsmac/main.h
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+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.h
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@@ -567,6 +567,7 @@ struct brcms_c_info {
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struct sk_buff *beacon;
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u16 beacon_tim_offset;
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u16 beacon_dtim_period;
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+ struct sk_buff *probe_resp;
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};
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/* antsel module specific state */
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--- a/drivers/net/wireless/brcm80211/brcmsmac/pub.h
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+++ b/drivers/net/wireless/brcm80211/brcmsmac/pub.h
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@@ -336,6 +336,8 @@ extern void brcms_c_update_beacon(struct
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extern void brcms_c_set_new_beacon(struct brcms_c_info *wlc,
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struct sk_buff *beacon, u16 tim_offset,
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u16 dtim_period);
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+extern void brcms_c_set_new_probe_resp(struct brcms_c_info *wlc,
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+ struct sk_buff *probe_resp);
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extern void brcms_c_set_ssid(struct brcms_c_info *wlc, u8 *ssid,
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size_t ssid_len);
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