iwmc3200wifi: handling wifi_if_ntfy responses
When we're calling iwm_send_wifi_if_cmd() with the resp flag set, we're
currently waiting on the mlme queue, waiting for some flags here and there to
show up.
This patch adds a wifi_ntfy bitmap, and when we're sending a wifi_if command
expecting an answers, we wait synchronously for it to show up, on a dedicated
queue. The wifi_ntfy bit is set when we receive the corresponding answer.
Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwmc3200wifi/commands.c b/drivers/net/wireless/iwmc3200wifi/commands.c
index 834a7f5..337a884 100644
--- a/drivers/net/wireless/iwmc3200wifi/commands.c
+++ b/drivers/net/wireless/iwmc3200wifi/commands.c
@@ -70,14 +70,28 @@
int iwm_send_wifi_if_cmd(struct iwm_priv *iwm, void *payload, u16 payload_size,
bool resp)
{
+ struct iwm_umac_wifi_if *hdr = (struct iwm_umac_wifi_if *)payload;
struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
struct iwm_umac_cmd umac_cmd;
+ int ret;
+ u8 oid = hdr->oid;
umac_cmd.id = UMAC_CMD_OPCODE_WIFI_IF_WRAPPER;
umac_cmd.resp = resp;
- return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
- payload, payload_size);
+ ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
+ payload, payload_size);
+
+ if (resp) {
+ ret = wait_event_interruptible_timeout(iwm->wifi_ntfy_queue,
+ test_and_clear_bit(oid, &iwm->wifi_ntfy[0]),
+ 3 * HZ);
+
+ if (!ret)
+ ret = -EBUSY;
+ }
+
+ return ret;
}
static struct coex_event iwm_sta_xor_prio_tbl[COEX_EVENTS_NUM] =
@@ -746,14 +760,6 @@
return ret;
}
- /* Wait for the profile to be active */
- ret = wait_event_interruptible_timeout(iwm->mlme_queue,
- iwm->umac_profile_active == 1,
- 3 * HZ);
- if (!ret)
- return -EBUSY;
-
-
for (i = 0; i < IWM_NUM_KEYS; i++)
if (iwm->keys[i].in_use) {
int default_key = 0;
@@ -778,8 +784,8 @@
int iwm_invalidate_mlme_profile(struct iwm_priv *iwm)
{
- int ret;
struct iwm_umac_invalidate_profile invalid;
+ int ret;
invalid.hdr.oid = UMAC_WIFI_IF_CMD_INVALIDATE_PROFILE;
invalid.hdr.buf_size =
@@ -793,8 +799,7 @@
return ret;
ret = wait_event_interruptible_timeout(iwm->mlme_queue,
- (iwm->umac_profile_active == 0),
- 2 * HZ);
+ (iwm->umac_profile_active == 0), 2 * HZ);
if (!ret)
return -EBUSY;