summaryrefslogtreecommitdiffstats
path: root/drivers/net/usb/cdc_mbim.c
diff options
context:
space:
mode:
authorJens Axboe <axboe@kernel.dk>2013-02-20 08:26:06 +0100
committerJens Axboe <axboe@kernel.dk>2013-02-20 08:26:06 +0100
commitd4308febf3551d46884561b7c3fdd62ad3ca7ff2 (patch)
treeb8c48122df7c36761c6fb5d70647a09605892b9f /drivers/net/usb/cdc_mbim.c
parentc206c70924737db6836382c09ad2dacd04bb6204 (diff)
parent087ffecdaa1875cc683a7a5bc0695b3ebfce3bad (diff)
Merge branch 'stable/for-jens-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-3.9/drivers
Konrad writes: Please git pull the following branch: git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/for-jens-3.9 which has bug-fixes that did not make it in v3.8. They all are marked as material for the stable tree as well. There are two bug-fixes for the code that has been in there for some time (that is the Jan's fix and one of mine). And there are two bug-fixes for the persistent grant feature that debuted in v3.8 for xen blk[back|front]end.
Diffstat (limited to 'drivers/net/usb/cdc_mbim.c')
-rw-r--r--drivers/net/usb/cdc_mbim.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index 42f51c71ec1..248d2dc765a 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -374,6 +374,21 @@ static const struct driver_info cdc_mbim_info = {
.tx_fixup = cdc_mbim_tx_fixup,
};
+/* MBIM and NCM devices should not need a ZLP after NTBs with
+ * dwNtbOutMaxSize length. This driver_info is for the exceptional
+ * devices requiring it anyway, allowing them to be supported without
+ * forcing the performance penalty on all the sane devices.
+ */
+static const struct driver_info cdc_mbim_info_zlp = {
+ .description = "CDC MBIM",
+ .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN | FLAG_SEND_ZLP,
+ .bind = cdc_mbim_bind,
+ .unbind = cdc_mbim_unbind,
+ .manage_power = cdc_mbim_manage_power,
+ .rx_fixup = cdc_mbim_rx_fixup,
+ .tx_fixup = cdc_mbim_tx_fixup,
+};
+
static const struct usb_device_id mbim_devs[] = {
/* This duplicate NCM entry is intentional. MBIM devices can
* be disguised as NCM by default, and this is necessary to
@@ -385,6 +400,10 @@ static const struct usb_device_id mbim_devs[] = {
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
.driver_info = (unsigned long)&cdc_mbim_info,
},
+ /* Sierra Wireless MC7710 need ZLPs */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68a2, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&cdc_mbim_info_zlp,
+ },
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
.driver_info = (unsigned long)&cdc_mbim_info,
},