mwifiex: increase the number of nodes in command pool

Command nodes are increased from 20 to 50. Now we can always
scan 1 channel per scan command to avoid traffic delay/loss in
connected state. We will get rid of *CHANNEL_PER_SCAN_CMD macros
used due to command node constraints.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 3 insertions, 16 deletions

diff --git a/drivers/net/wireless/mwifiex/ioctl.h b/drivers/net/wireless/mwifiex/ioctl.h
index ee494db54060..1b576722671d 100644
--- a/drivers/net/wireless/mwifiex/ioctl.h
+++ b/drivers/net/wireless/mwifiex/ioctl.h
@@ -303,7 +303,7 @@ struct mwifiex_ds_ant_cfg {
         u32 rx_ant;
 };
 
-#define MWIFIEX_NUM_OF_CMD_BUFFER       20
+#define MWIFIEX_NUM_OF_CMD_BUFFER       50
 #define MWIFIEX_SIZE_OF_CMD_BUFFER      2048
 
 enum {
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 7b3af3d29ded..5c68173c1d24 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -29,9 +29,6 @@
 #define MWIFIEX_MAX_CHANNELS_PER_SPECIFIC_SCAN   14
 
 #define MWIFIEX_DEF_CHANNELS_PER_SCAN_CMD       4
-#define MWIFIEX_LIMIT_1_CHANNEL_PER_SCAN_CMD    15
-#define MWIFIEX_LIMIT_2_CHANNELS_PER_SCAN_CMD   27
-#define MWIFIEX_LIMIT_3_CHANNELS_PER_SCAN_CMD   35
 
 /* Memory needed to store a max sized Channel List TLV for a firmware scan */
 #define CHAN_TLV_MAX_SIZE  (sizeof(struct mwifiex_ie_types_header)         \
@@ -1055,20 +1052,10 @@ mwifiex_config_scan(struct mwifiex_private *priv,
 
         /*
          * In associated state we will reduce the number of channels scanned per
-         * scan command to avoid any traffic delay/loss. This number is decided
-         * based on total number of channels to be scanned due to constraints
-         * of command buffers.
+         * scan command to 1 to avoid any traffic delay/loss.
          */
-        if (priv->media_connected) {
-                if (chan_num < MWIFIEX_LIMIT_1_CHANNEL_PER_SCAN_CMD)
+        if (priv->media_connected)
                         *max_chan_per_scan = 1;
-                else if (chan_num < MWIFIEX_LIMIT_2_CHANNELS_PER_SCAN_CMD)
-                        *max_chan_per_scan = 2;
-                else if (chan_num < MWIFIEX_LIMIT_3_CHANNELS_PER_SCAN_CMD)
-                        *max_chan_per_scan = 3;
-                else
-                        *max_chan_per_scan = 4;
-        }
 }
 
 /*