USB: serial: sierra driver performance improvements

- Version number set to 1.3.4
 - Increased the number of input/output URBs for improved performance
   (numbers based on an measurement study triggered by a user request).
   We performed the testing using a network simulator that provided full
   speeds in the uplink and downlink directions and this combination of
   URBs provided the best throughput.

Signed-off-by: Elina Pasheva <epasheva@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 17ac34f4d66823deb49f02a571a09f28de07fe0a..9826c85a812d4a3b04dac980e3d2f19217f77ff3 100644 (file)
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -14,7 +14,7 @@
   Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
 */
 
-#define DRIVER_VERSION "v.1.3.3"
+#define DRIVER_VERSION "v.1.3.4"
 #define DRIVER_AUTHOR "Kevin Lloyd <klloyd@sierrawireless.com>"
 #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
 
@@ -30,8 +30,8 @@
 #define SWIMS_USB_REQUEST_SetPower     0x00
 #define SWIMS_USB_REQUEST_SetNmea      0x07
 
-#define N_IN_URB       4
-#define N_OUT_URB      4
+#define N_IN_URB       8
+#define N_OUT_URB      64
 #define IN_BUFLEN      4096
 
 static int debug;