On Thu, Dec 15, 2016 at 01:08:51AM +0000, Gonglei (Arei) wrote: > > > > > Regards, > -Gonglei > > > > -----Original Message----- > > From: Zeng, Xin [mailto:xin.zeng@xxxxxxxxx] > > Sent: Thursday, December 15, 2016 8:59 AM > > To: Gonglei (Arei); Halil Pasic; linux-kernel@xxxxxxxxxxxxxxx; > > qemu-devel@xxxxxxxxxx; virtio-dev@xxxxxxxxxxxxxxxxxxxx; > > virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx; linux-crypto@xxxxxxxxxxxxxxx > > Cc: Huangweidong (C); Claudio Fontana; mst@xxxxxxxxxx; Luonengjun; > > Hanweidong (Randy); Xuquan (Quan Xu); Wanzongshun (Vincent); > > stefanha@xxxxxxxxxx; Zhoujian (jay, Euler); cornelia.huck@xxxxxxxxxx; > > longpeng; arei.gonglei@xxxxxxxxxxx; davem@xxxxxxxxxxxxx; Wubin (H); > > herbert@xxxxxxxxxxxxxxxxxxx > > Subject: RE: [Qemu-devel] [PATCH v7 1/1] crypto: add virtio-crypto driver > > > > On Thursday, December 15, 2016 8:45 AM, Gonglei (Arei) Wrote: > > < > > diff --git a/drivers/crypto/virtio/virtio_crypto_core.c > > < > b/drivers/crypto/virtio/virtio_crypto_core.c > > < > > new file mode 100644 > > < > > index 0000000..c0854a1 > > < > > --- /dev/null > > < > > +++ b/drivers/crypto/virtio/virtio_crypto_core.c > > < > > @@ -0,0 +1,474 @@ > > < > [..] > > < > > + > > < > > +static void virtcrypto_dataq_callback(struct virtqueue *vq) > > < > > +{ > > < > > + struct virtio_crypto *vcrypto = vq->vdev->priv; > > < > > + struct virtio_crypto_request *vc_req; > > < > > + unsigned long flags; > > < > > + unsigned int len; > > < > > + struct ablkcipher_request *ablk_req; > > < > > + int error; > > < > > + > > < > > + spin_lock_irqsave(&vcrypto->lock, flags); > > < > > > < > Would it make sense to use a per virtqueue lock > > < > like in virtio_blk for example instead of locking on the whole > > < > device? OK, it seems you use only one dataqueue, so it > > < > may not be that relevant. > > < > > > < Currently yes, both the backend device (cryptodev-backend-builtin) > > < and the frontend driver use one dataqueue. > > < > > > > I think it makes sense to use per virtqueue lock here though it only uses one > > queue so far, > > but in the spec we already have multi queues support. > > > Yes, I agree. Will do that in V8 soon. > Hope to catch up with Michael's pull request for 4.10. > > Regards, > -Gonglei I merged v7, this change will have to wait. Sorry. -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
