From: "Xia, Chenbo" <chenbo.xia@intel.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>,
"dev@dpdk.org" <dev@dpdk.org>,
"amorenoz@redhat.com" <amorenoz@redhat.com>
Subject: Re: [dpdk-dev] [PATCH] net/virtio: improve logs in Vhost-vDPA DMA mapping
Date: Thu, 19 Nov 2020 08:36:27 +0000 [thread overview]
Message-ID: <MN2PR11MB4063A064AD32D0F77D0AAE1C9CE00@MN2PR11MB4063.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20201118080817.669343-1-maxime.coquelin@redhat.com>
Hi Maxime,
> -----Original Message-----
> From: Maxime Coquelin <maxime.coquelin@redhat.com>
> Sent: Wednesday, November 18, 2020 4:08 PM
> To: dev@dpdk.org; Xia, Chenbo <chenbo.xia@intel.com>; amorenoz@redhat.com
> Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
> Subject: [PATCH] net/virtio: improve logs in Vhost-vDPA DMA mapping
>
> This patch adds debug logs in vhost_vdpa_dma_map() and
> vhost_vdpa_dma_unmap() to ease debugging.
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
> drivers/net/virtio/virtio_user/vhost_vdpa.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/net/virtio/virtio_user/vhost_vdpa.c
> b/drivers/net/virtio/virtio_user/vhost_vdpa.c
> index c7b9349fc8..528ff60f29 100644
> --- a/drivers/net/virtio/virtio_user/vhost_vdpa.c
> +++ b/drivers/net/virtio/virtio_user/vhost_vdpa.c
> @@ -93,6 +93,9 @@ vhost_vdpa_dma_map(struct virtio_user_dev *dev, void *addr,
> msg.iotlb.size = len;
> msg.iotlb.perm = VHOST_ACCESS_RW;
>
> + PMD_DRV_LOG(DEBUG, "%s: iova: 0x%" PRIx64 ", addr: %p, len: 0x%" PRIx64,
> + __func__, iova, addr, len);
Use PRIx64 to print size_t (len in this case)will cause compile errors in i686.
Should we use %zx ?
> +
> if (write(dev->vhostfd, &msg, sizeof(msg)) != sizeof(msg)) {
> PMD_DRV_LOG(ERR, "Failed to send IOTLB update (%s)",
> strerror(errno));
> @@ -113,6 +116,9 @@ vhost_vdpa_dma_unmap(struct virtio_user_dev *dev,
> __rte_unused void *addr,
> msg.iotlb.iova = iova;
> msg.iotlb.size = len;
>
> + PMD_DRV_LOG(DEBUG, "%s: iova: 0x%" PRIx64 ", len: 0x%" PRIx64,
> + __func__, iova, len);
> +
Ditto.
Thanks!
Chenbo
> if (write(dev->vhostfd, &msg, sizeof(msg)) != sizeof(msg)) {
> PMD_DRV_LOG(ERR, "Failed to send IOTLB invalidate (%s)",
> strerror(errno));
> --
> 2.26.2
next prev parent reply other threads:[~2020-11-19 8:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-18 8:08 Maxime Coquelin
2020-11-19 8:36 ` Xia, Chenbo [this message]
2021-01-05 15:31 ` Maxime Coquelin
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