wlcore: save session_id per-link

A new session_id is generated on link allocation.
it is saved in a global array and used later, on tx.

The new fw api adds new bcast/global_session_id
fields to start_role(ap) command, and a new session_id
field to add_peer command. align the driver with it.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index b2ebe39..1735a53 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -266,6 +266,16 @@ out:
        return ret;
 }
 
+static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid)
+{
+       if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX)
+               wl->session_ids[hlid] = 0;
+
+       wl->session_ids[hlid]++;
+
+       return wl->session_ids[hlid];
+}
+
 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
 {
        unsigned long flags;
@@ -273,6 +283,8 @@ int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
        if (link >= WL12XX_MAX_LINKS)
                return -EBUSY;
 
+       wl->session_ids[link] = wlcore_get_new_session_id(wl, link);
+
        /* these bits are used by op_tx */
        spin_lock_irqsave(&wl->wl_lock, flags);
        __set_bit(link, wl->links_map);
@@ -304,17 +316,6 @@ void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
        *hlid = WL12XX_INVALID_LINK_ID;
 }
 
-static int wl12xx_get_new_session_id(struct wl1271 *wl,
-                                    struct wl12xx_vif *wlvif)
-{
-       if (wlvif->session_counter >= SESSION_COUNTER_MAX)
-               wlvif->session_counter = 0;
-
-       wlvif->session_counter++;
-
-       return wlvif->session_counter;
-}
-
 static u8 wlcore_get_native_channel_type(u8 nl_channel_type)
 {
        switch (nl_channel_type) {
@@ -359,7 +360,7 @@ static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
                        goto out_free;
        }
        cmd->device.hlid = wlvif->dev_hlid;
-       cmd->device.session = wl12xx_get_new_session_id(wl, wlvif);
+       cmd->device.session = wl->session_ids[wlvif->dev_hlid];
 
        wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
                     cmd->role_id, cmd->device.hlid, cmd->device.session);
@@ -460,7 +461,7 @@ int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
                        goto out_free;
        }
        cmd->sta.hlid = wlvif->sta.hlid;
-       cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif);
+       cmd->sta.session = wl->session_ids[wlvif->sta.hlid];
        /*
         * We don't have the correct remote rates in this stage, and there
         * is no way to update them later, so use our supported rates instead.
@@ -564,6 +565,8 @@ int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
        cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
        cmd->ap.global_hlid = wlvif->ap.global_hlid;
        cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
+       cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid];
+       cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid];
        cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
        cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
        cmd->ap.dtim_interval = bss_conf->dtim_period;
@@ -1419,6 +1422,7 @@ int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
        cmd->hlid = hlid;
        cmd->sp_len = sta->max_sp;
        cmd->wmm = sta->wme ? 1 : 0;
+       cmd->session_id = wl->session_ids[hlid];
 
        for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
                if (sta->wme && (sta->uapsd_queues & BIT(i)))

diff --git a/drivers/net/wireless/ti/wlcore/cmd.h b/drivers/net/wireless/ti/wlcore/cmd.h
index 2070a10..c9f8268 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/cmd.h
+++ b/drivers/net/wireless/ti/wlcore/cmd.h
@@ -362,7 +362,9 @@ struct wl12xx_cmd_role_start {
                         */
                        u8 wmm;
 
-                       u8 padding_1[3];
+                       u8 bcast_session_id;
+                       u8 global_session_id;
+                       u8 padding_1[1];
                } __packed ap;
        };
 } __packed;
@@ -582,7 +584,7 @@ struct wl12xx_cmd_add_peer {
        u8 bss_index;
        u8 sp_len;
        u8 wmm;
-       u8 padding1;
+       u8 session_id;
 } __packed;
 
 struct wl12xx_cmd_remove_peer {

diff --git a/drivers/net/wireless/ti/wlcore/debugfs.c b/drivers/net/wireless/ti/wlcore/debugfs.c
index 93f801d..80376d4 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/debugfs.c
+++ b/drivers/net/wireless/ti/wlcore/debugfs.c
@@ -589,7 +589,6 @@ static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
                VIF_STATE_PRINT_INT(beacon_int);
                VIF_STATE_PRINT_INT(default_key);
                VIF_STATE_PRINT_INT(aid);
-               VIF_STATE_PRINT_INT(session_counter);
                VIF_STATE_PRINT_INT(psm_entry_retry);
                VIF_STATE_PRINT_INT(power_level);
                VIF_STATE_PRINT_INT(rssi_thold);

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index d7fe07b..97e4a9c 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -1871,6 +1871,7 @@ static void wlcore_op_stop_locked(struct wl1271 *wl)
        memset(wl->roles_map, 0, sizeof(wl->roles_map));
        memset(wl->links_map, 0, sizeof(wl->links_map));
        memset(wl->roc_map, 0, sizeof(wl->roc_map));
+       memset(wl->session_ids, 0, sizeof(wl->session_ids));
        wl->active_sta_count = 0;
 
        /* The system link is always allocated */

diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c
index 2844f30..68f73f9 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/tx.c
+++ b/drivers/net/wireless/ti/wlcore/tx.c
@@ -294,7 +294,7 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct wl12xx_vif *wlvif,
                tx_attr |= TX_HW_ATTR_TX_DUMMY_REQ;
        } else if (wlvif) {
                /* configure the tx attributes */
-               tx_attr = wlvif->session_counter <<
+               tx_attr = wl->session_ids[hlid] <<
                          TX_HW_ATTR_OFST_SESSION_COUNTER;
        }
 

diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index d47eb6c..e9254b7 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -215,6 +215,8 @@ struct wl1271 {
        unsigned long klv_templates_map[
                        BITS_TO_LONGS(WLCORE_MAX_KLV_TEMPLATES)];
 
+       u8 session_ids[WL12XX_MAX_LINKS];
+
        struct list_head wlvif_list;
 
        u8 sta_count;

diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index 8478bbc..6be1e8e 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -396,9 +396,6 @@ struct wl12xx_vif {
        /* Our association ID */
        u16 aid;
 
-       /* Session counter for the chipset */
-       int session_counter;
-
        /* retry counter for PSM entries */
        u8 psm_entry_retry;