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authorThomas Pugliese <thomas.pugliese@gmail.com>2013-06-11 10:39:31 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-06-17 13:41:58 -0700
commit2b81c083c62909dc2af0d8d2e8687b99d259954f (patch)
treee6cd643e09b056163e9393996231d7346e85cc74 /drivers/usb/host/hwa-hc.c
parent5b92f46c967706d43717aa666c50c6ea0b12da43 (diff)
downloadop-kernel-dev-2b81c083c62909dc2af0d8d2e8687b99d259954f.zip
op-kernel-dev-2b81c083c62909dc2af0d8d2e8687b99d259954f.tar.gz
usb: wire adapter: add scatter gather support
This patch adds support for scatter gather DMA to the wire adapter and updates the HWA to advertise support for SG transfers. This allows the block layer to submit transfer requests to the HWA HC without first breaking them up into PAGE_SIZE requests. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/hwa-hc.c')
-rw-r--r--drivers/usb/host/hwa-hc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index c0df599..4af750e 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -774,6 +774,7 @@ static int hwahc_probe(struct usb_interface *usb_iface,
goto error_alloc;
}
usb_hcd->wireless = 1;
+ usb_hcd->self.sg_tablesize = ~0;
wusbhc = usb_hcd_to_wusbhc(usb_hcd);
hwahc = container_of(wusbhc, struct hwahc, wusbhc);
hwahc_init(hwahc);
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