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authorPrasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>2010-04-13 16:36:33 -0700
committerInaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>2010-05-11 14:09:04 -0700
commit7ef9f9a4ee47b8d8ab9519647ba02fc700473be8 (patch)
tree42c4527bc421354024ac9c2c4c86608ebdab6fe2 /drivers/net/wimax
parent8a3a1b65eeecd18357ac0cc941f43df153d4f271 (diff)
downloadop-kernel-dev-7ef9f9a4ee47b8d8ab9519647ba02fc700473be8.zip
op-kernel-dev-7ef9f9a4ee47b8d8ab9519647ba02fc700473be8.tar.gz
wimax/i2400m: USB specific TX queue's minimum buffer room required for new message
This patch specifies the TX queue's buffer room required by the USB bus driver while allocating header space for a new message. Please refer the documentation in the code. Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
Diffstat (limited to 'drivers/net/wimax')
-rw-r--r--drivers/net/wimax/i2400m/usb.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c
index d8c4d64..6fd8cf5 100644
--- a/drivers/net/wimax/i2400m/usb.c
+++ b/drivers/net/wimax/i2400m/usb.c
@@ -467,6 +467,13 @@ int i2400mu_probe(struct usb_interface *iface,
usb_set_intfdata(iface, i2400mu);
i2400m->bus_tx_block_size = I2400MU_BLK_SIZE;
+ /*
+ * Room required in the Tx queue for USB message to accommodate
+ * a smallest payload while allocating header space is 16 bytes.
+ * Adding this room for the new tx message increases the
+ * possibilities of including any payload with size <= 16 bytes.
+ */
+ i2400m->bus_tx_room_min = I2400MU_BLK_SIZE;
i2400m->bus_pl_size_max = I2400MU_PL_SIZE_MAX;
i2400m->bus_setup = NULL;
i2400m->bus_dev_start = i2400mu_bus_dev_start;
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