From: "Gaëtan Rivet" <grive@u256.net>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: dev@dpdk.org, matan@mellanox.com, xiao.w.wang@intel.com,
zhihong.wang@intel.com, xiaolong.ye@intel.com,
chenbo.xia@intel.com, david.marchand@redhat.com,
amorenoz@redhat.com, shreyansh.jain@nxp.com,
viacheslavo@mellanox.com, hemant.agrawal@nxp.com,
sachin.saxena@nxp.com
Subject: Re: [dpdk-dev] [PATCH 04/14] vhost: make vDPA framework bus agnostic
Date: Fri, 12 Jun 2020 14:46:37 +0200 [thread overview]
Message-ID: <20200612124637.44dw3lpocd6uxv2z@u256.net> (raw)
In-Reply-To: <20200611213748.1967029-5-maxime.coquelin@redhat.com>
On 11/06/20 23:37 +0200, Maxime Coquelin wrote:
> This patch makes the vDPA framework to no more
> support only PCI devices, but any devices by relying
> on the generic device name as identifier.
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
> drivers/vdpa/ifc/ifcvf_vdpa.c | 6 +-
> drivers/vdpa/mlx5/mlx5_vdpa.c | 8 +--
> drivers/vdpa/mlx5/mlx5_vdpa.h | 2 +-
> examples/vdpa/main.c | 49 ++++++++--------
> lib/librte_vhost/rte_vdpa.h | 42 +++++++-------
> lib/librte_vhost/rte_vhost_version.map | 1 +
> lib/librte_vhost/vdpa.c | 79 +++++++++++---------------
> 7 files changed, 85 insertions(+), 102 deletions(-)
>
[...]
> diff --git a/drivers/vdpa/mlx5/mlx5_vdpa.c b/drivers/vdpa/mlx5/mlx5_vdpa.c
> index 1113d6cef0..e8255c7d7e 100644
> --- a/drivers/vdpa/mlx5/mlx5_vdpa.c
> +++ b/drivers/vdpa/mlx5/mlx5_vdpa.c
> @@ -501,14 +501,13 @@ mlx5_vdpa_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
> priv->caps = attr.vdpa;
> priv->log_max_rqt_size = attr.log_max_rqt_size;
> priv->ctx = ctx;
> - priv->dev_addr.pci_addr = pci_dev->addr;
> - priv->dev_addr.type = VDPA_ADDR_PCI;
> + priv->pci_dev = pci_dev;
> priv->var = mlx5_glue->dv_alloc_var(ctx, 0);
> if (!priv->var) {
> DRV_LOG(ERR, "Failed to allocate VAR %u.\n", errno);
> goto error;
> }
> - priv->id = rte_vdpa_register_device(&priv->dev_addr, &mlx5_vdpa_ops);
> + priv->id = rte_vdpa_register_device(&pci_dev->device, &mlx5_vdpa_ops);
> if (priv->id < 0) {
> DRV_LOG(ERR, "Failed to register vDPA device.");
> rte_errno = rte_errno ? rte_errno : EINVAL;
> @@ -550,8 +549,7 @@ mlx5_vdpa_pci_remove(struct rte_pci_device *pci_dev)
>
> pthread_mutex_lock(&priv_list_lock);
> TAILQ_FOREACH(priv, &priv_list, next) {
> - if (memcmp(&priv->dev_addr.pci_addr, &pci_dev->addr,
> - sizeof(pci_dev->addr)) == 0) {
> + if (priv->pci_dev == pci_dev) {
Assignment is ok I think but comparison is not, rte_pci_addr_cmp()
should be used here instead. (memcmp was not correct either.)
The structure can be padded depending on arch.
Everything else seems ok to me.
--
Gaëtan
next prev parent reply other threads:[~2020-06-12 12:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-11 21:37 [dpdk-dev] [PATCH 00/14] vDPA API and framework rework Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 01/14] bus/dpaa: fix null pointer dereference Maxime Coquelin
2020-06-12 9:48 ` Gaëtan Rivet
2020-06-11 21:37 ` [dpdk-dev] [PATCH 02/14] bus/fslmc: " Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 03/14] vhost: introduce vDPA devices class Maxime Coquelin
2020-06-12 12:37 ` Gaëtan Rivet
2020-06-15 9:15 ` Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 04/14] vhost: make vDPA framework bus agnostic Maxime Coquelin
2020-06-12 12:46 ` Gaëtan Rivet [this message]
2020-06-15 9:17 ` Maxime Coquelin
2020-06-19 11:14 ` Adrian Moreno
2020-06-19 15:11 ` Maxime Coquelin
2020-06-22 9:49 ` Adrian Moreno
2020-06-22 12:34 ` Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 05/14] vhost: replace device ID in vDPA ops Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 06/14] vhost: replace vDPA device ID in Vhost Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 07/14] vhost: replace device ID in applications Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 08/14] vhost: remove useless vDPA API Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 09/14] vhost: use linked-list for vDPA devices Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 10/14] vhost: introduce wrappers for some vDPA ops Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 11/14] examples/vdpa: use new wrappers instead of ops Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 12/14] examples/vdpa: remove useless device count Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 13/14] vhost: remove vDPA device count API Maxime Coquelin
2020-06-11 21:37 ` [dpdk-dev] [PATCH 14/14] vhost: split vDPA header file Maxime Coquelin
2020-06-12 9:38 ` [dpdk-dev] [PATCH 00/14] vDPA API and framework rework Gaëtan Rivet
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